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        1 Contract API job in Colchester + 20 miles

        337 exact matches jobs are outside your preferred location

        Senior Python Developer

        Hireful
        Central London, London
        £55k - £62k base salary + great benefits
        Are you a Senior Python Developer looking to help shape the future of how schools use technology to empower learners across the UK? We are searching for a Senior Python Developer / Lead Python Developer who can guide a talented engineering team and push the boundaries of what cloud-native EdTech can be. Fancy taking ownership over building scalable Python applications, driving Agile delivery, and designing robust AWS-based systems using modern Infrastructure-as-Code approaches? Role: Senior Python Developer, Python Software Engineer, Python Developer, Lead Python Developer - Location: 100% work from home / Remote - Salary: £55k - £62k base plus great benefits - You will champion engineering excellence, define best practices, inspire and mentor developers, and keep innovation at the heart of everything you do – from microservices and RESTful APIs to CI/CD pipelines and
        Are you a Senior Python Developer looking to help shape the future of how schools use technology to empower learners across the UK? We are searching for a Senior Python Developer / Lead Python Developer who can guide a talented engineering team and push the boundaries of what cloud-native EdTech can be. Fancy taking ownership over building scalable Python applications, driving Agile delivery, and designing robust AWS-based systems using modern Infrastructure-as-Code approaches? Role: Senior Python Developer, Python Software Engineer, Python Developer, Lead Python Developer - Location: 100% work from home / Remote - Salary: £55k - £62k base plus great benefits - You will champion engineering excellence, define best practices, inspire and mentor developers, and keep innovation at the heart of everything you do – from microservices and RESTful APIs to CI/CD pipelines and
        more
        FEATURED

        Senior Python Developer - Team Leader

        Transforming Learning Group
        City of London, London
        £55000 - £62000 per annum
        Senior Python Developer Team Lead - Location-Remote (UK-based) Salary - £55,000 £62,000 - Transforming Learning Groupis a forward-thinking education technology group working with over 5,000 schools across the UK. Our mission is simple: to help schools harness technology and data to improve outcomes for every learner. Through our brands including turn IT on, School ICT Services, SalamanderSoft and more we deliver solutions that make schools more efficient, effective and innovative. Were looking for aSenior Python Developer Team Leadto join our growing engineering team. This is a hands-on leadership role where youll set standards, mentor developers, and help shape the future of our cloud-native learning products. If youre passionate about building scalable solutions and leading technical teams, this could be the perfect opportunity. What youll be doing
        Senior Python Developer Team Lead - Location-Remote (UK-based) Salary - £55,000 £62,000 - Transforming Learning Groupis a forward-thinking education technology group working with over 5,000 schools across the UK. Our mission is simple: to help schools harness technology and data to improve outcomes for every learner. Through our brands including turn IT on, School ICT Services, SalamanderSoft and more we deliver solutions that make schools more efficient, effective and innovative. Were looking for aSenior Python Developer Team Leadto join our growing engineering team. This is a hands-on leadership role where youll set standards, mentor developers, and help shape the future of our cloud-native learning products. If youre passionate about building scalable solutions and leading technical teams, this could be the perfect opportunity. What youll be doing
        more
        FEATURED

        Senior Java Software Engineer (Urgent)

        Morson Edge
        Tower Hill, City of London (EC3), E1W 1WY
        £500 - 600 per day
        We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications. You will be expected to employ best design and development practices, solve technical challenges, and contribute to high-quality system analysis and developme
        We are seeking an experienced Senior Java Software Engineer to join the IT team at a leading bank, supporting the delivery, maintenance, and enhancement of core systems across various business areas, including operations, compliance, transactions, and client management. This is a 6-month contract role offering an excellent day rate, ideally suited to candidates with experience in regulated environments, financial services, or government/public sector organisations. In this role, you will be an integral part of the software development lifecycle, working closely with Senior Java Developers, UI/UX teams, and Agile Transformation to architect, build, and deliver greenfield, brownfield, and integration applications. You will be expected to employ best design and development practices, solve technical challenges, and contribute to high-quality system analysis and developme
        more
        NEW
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        more
        Position: Backend Engineer - Location: Remote (UK) Work Type: Contract - Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
        Position: Backend Engineer - Location: Remote (UK) Work Type: Contract - Join our team to build the backbone of a global music streaming platform! We're looking for a JAVA Backend Engineer who loves coding, solving problems, and delivering features that reach millions of users. * Build scalable Java & SpringBoot microservices. * Develop APIs and backend tools for engineers across the company. * Use TDD, CI/CD, Docker, Kubernetes, Jenkins, and GCP services. * Work with alternate languages like Python, Scala, Golang, or Node.js for backend tasks. * Collaborate in an Agile environment with cross-functional teams. * Strong backend development skills (Java and microservices). * Experience with microservices, TDD, CI/CD, Docker & Kubernetes, and cloud platforms (GCP preferred). * Familiarity with and one of Python, Golang, Scala or Node.js is a plus.
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        FEATURED

        GCP Architect

        Prodapt (UK) Limited
        Lambeth, South East London (SE1), SE1
        Unspecified
        Role: GCP Architect - Location & Travel: London - Employment Type : 1 Year Fixed term - Candidate Should be able to start as soon as possible - Prodapt is the largest & fastest growing specialized firm serving in Connectedness vertical. Present across 5 continents, delivering futuristic solutions & AI-driven services to global CSPs, and digital platform & software firms. Prodapts customers range from telecom operators, digital/multi-service providers (D/MSPs), technology and digital platform companies in the business of connectedness. Prodapt builds, integrates, and operates solutions enabling next-generation technologies and innovations. Role Overview - We are looking for a GCP Architect with hands-on experience designing and delivering Vertex AIbased solutions. The role focuses on practical architecture, solution design, and guiding engineering teams to build ML, Ge
        Role: GCP Architect - Location & Travel: London - Employment Type : 1 Year Fixed term - Candidate Should be able to start as soon as possible - Prodapt is the largest & fastest growing specialized firm serving in Connectedness vertical. Present across 5 continents, delivering futuristic solutions & AI-driven services to global CSPs, and digital platform & software firms. Prodapts customers range from telecom operators, digital/multi-service providers (D/MSPs), technology and digital platform companies in the business of connectedness. Prodapt builds, integrates, and operates solutions enabling next-generation technologies and innovations. Role Overview - We are looking for a GCP Architect with hands-on experience designing and delivering Vertex AIbased solutions. The role focuses on practical architecture, solution design, and guiding engineering teams to build ML, Ge
        more

        Principal Java Engineer

        Franklin Bates Limited
        London
        From £125,000 to £140,000 per annum
        Principal Engineer FinTech SaaS - Location: Hybrid, UK-based (no visa sponsorship) Contract: Permanent - About - Our client is an innovative B2B FinTech company transforming the SME lending market. Their SaaS solutions help banks and lenders make decisions using live transactional data. Trusted by a wide range of financial institutions, they are scaling rapidly and looking for a senior technical leader to join their journey. The Role - We are seeking a Principal Engineer to act as a trusted technical authority. Youll guide technical direction, mentor engineers, and collaborate with stakeholders to deliver scalable, commercially valuable solutions. This is a hands-on leadership role across multiple product teams. Key Responsibilities * Lead architecture and technical strategy across product teams. * Design and build robust platform functionality (APIs, integrations, da
        Principal Engineer FinTech SaaS - Location: Hybrid, UK-based (no visa sponsorship) Contract: Permanent - About - Our client is an innovative B2B FinTech company transforming the SME lending market. Their SaaS solutions help banks and lenders make decisions using live transactional data. Trusted by a wide range of financial institutions, they are scaling rapidly and looking for a senior technical leader to join their journey. The Role - We are seeking a Principal Engineer to act as a trusted technical authority. Youll guide technical direction, mentor engineers, and collaborate with stakeholders to deliver scalable, commercially valuable solutions. This is a hands-on leadership role across multiple product teams. Key Responsibilities * Lead architecture and technical strategy across product teams. * Design and build robust platform functionality (APIs, integrations, da
        more
        NEWFEATURED
        We are seeking a dynamic scientific and technical leader to build and direct a new Discovery Applied AI/ML group a team dedicated to transforming how we discover medicines by embedding state-of-the-art AI/ML directly into our discovery workflows, platforms, and decision-making. We designed this role for someone with a desire to advance scientific knowledge and harness the revolution in AI/ML, automation, and predictive sciences to deliver measurable impacts across the drug discovery procress on the success and progression of our medicine discovery portfolio. This group will operate as the applied AI/ML engine and thought partner for GSKs Discovery functions, working in close partnership with Discovery Data Sciences and other R&D teams. * Focus on AI/ML innovation, engineering, and productization (e.g., generative design tools, active learning loops, LIAL frameworks)
        We are seeking a dynamic scientific and technical leader to build and direct a new Discovery Applied AI/ML group a team dedicated to transforming how we discover medicines by embedding state-of-the-art AI/ML directly into our discovery workflows, platforms, and decision-making. We designed this role for someone with a desire to advance scientific knowledge and harness the revolution in AI/ML, automation, and predictive sciences to deliver measurable impacts across the drug discovery procress on the success and progression of our medicine discovery portfolio. This group will operate as the applied AI/ML engine and thought partner for GSKs Discovery functions, working in close partnership with Discovery Data Sciences and other R&D teams. * Focus on AI/ML innovation, engineering, and productization (e.g., generative design tools, active learning loops, LIAL frameworks)
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        NEW
        Date Posted: 11/12/2025 - Location: London - Job Type: Full time - Marketing Automation Executive (FTC) London / Reigate - We have an exciting opportunity to join our Marketing Automation team, as a Marketing Automation Executive on a 15 month FTC. We are looking for someone with experience in Microsoft Dynamics 365 ecosystem, to be hands on in our development and execution and optimisation of automated marketing campaigns that drive engagement, generate leads, and support the overall customer lifecycle - Please note: The is role will be initially Reigate based but will then move to our London office in Q2 2026 - About Just - We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products a
        Date Posted: 11/12/2025 - Location: London - Job Type: Full time - Marketing Automation Executive (FTC) London / Reigate - We have an exciting opportunity to join our Marketing Automation team, as a Marketing Automation Executive on a 15 month FTC. We are looking for someone with experience in Microsoft Dynamics 365 ecosystem, to be hands on in our development and execution and optimisation of automated marketing campaigns that drive engagement, generate leads, and support the overall customer lifecycle - Please note: The is role will be initially Reigate based but will then move to our London office in Q2 2026 - About Just - We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products a
        more
        NEW

        Software Engineer

        Southern Communications Ltd
        Drybridge Hill, Woodbridge (IP12)
        Up to £50,000 per annum
        Location: Melton (Hybrid) Salary: Up to £50,000 - The purpose of this role is to solve complex business problems and technical challenges through the design and development of software applications and services. This role will contribute directly towards exciting technology opportunities in the public health sector; specifically in general practice. You will be responsible for building and maintaining critical components of our software infrastructure, ensuring high performance, reliability, and security. This role sits within the platform team. Responsibilities - Design and Development * Contribute towards the design, develop, and implement high-performance, scalable, and maintainable applications and services * Develop APIs and other web services * Work with databases (relational and NoSQL) to implement data models
        Location: Melton (Hybrid) Salary: Up to £50,000 - The purpose of this role is to solve complex business problems and technical challenges through the design and development of software applications and services. This role will contribute directly towards exciting technology opportunities in the public health sector; specifically in general practice. You will be responsible for building and maintaining critical components of our software infrastructure, ensuring high performance, reliability, and security. This role sits within the platform team. Responsibilities - Design and Development * Contribute towards the design, develop, and implement high-performance, scalable, and maintainable applications and services * Develop APIs and other web services * Work with databases (relational and NoSQL) to implement data models
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        NEWPREMIUM

        Software Engineer (Full Stack)

        Southern Communications Ltd
        Drybridge Hill, Woodbridge (IP12)
        Unspecified
        Location: Melton (Hybrid) The purpose of this role is to understand and solve complex business problems and challenges through the design and development of software applications, services and components; ensuring high performance, reliability, and security. This role will contribute directly towards exciting technology opportunities in the public health sector; specifically in general practice. Responsibilities - Design and development * Contribute towards the design, develop, and implement high-performance, scalable, and maintainable applications and services * Develop APIs and other web services * Work with databases (relational and NoSQL) to implement data models * Contribute towards all phases of the software development lifecycle, from design and development through to testing, deployment and monitoring & alerting - Technical Leadership
        Location: Melton (Hybrid) The purpose of this role is to understand and solve complex business problems and challenges through the design and development of software applications, services and components; ensuring high performance, reliability, and security. This role will contribute directly towards exciting technology opportunities in the public health sector; specifically in general practice. Responsibilities - Design and development * Contribute towards the design, develop, and implement high-performance, scalable, and maintainable applications and services * Develop APIs and other web services * Work with databases (relational and NoSQL) to implement data models * Contribute towards all phases of the software development lifecycle, from design and development through to testing, deployment and monitoring & alerting - Technical Leadership
        more
        NEWPREMIUM
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        About Revolut - People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth,? 2 things are essential to our success: our people and our culture. In recognition of our outstanding employee experience, we've been certified as a Great Place to Work. So far, we have 10,000+ people working around the world, from our offices and remotely, to help us achieve our mission. And we're looking for more brilliant people. People who love building great products, redefining success, and turning the complexity of a chaotic world into the simplicity of a beautiful solution. About the role
        more

        Software Engineer (Hardware Integration with .NET)

        IO Associates
        City of London (EC1)
        £600 - £800 per day + Outside IR35 and Hybrid
        Role: Staff Software Engineer - Sector: Life Sciences - Location: London - Days Onsite: 3 per week - Day Rate: £800 Outside IR35 - Duration: 4 Months then to extend or go Permanent - iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented - Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in
        Role: Staff Software Engineer - Sector: Life Sciences - Location: London - Days Onsite: 3 per week - Day Rate: £800 Outside IR35 - Duration: 4 Months then to extend or go Permanent - iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements * Strong .NET / C# background * Significant experience integrating and communicating with hardware devices * Ability to handle Windows devices, drivers, and communication layers * 8+ years of experience at a staff-level, capable of working autonomously * Not a web-focused developer; needs to be fully hardware-integration oriented - Beneficial Experience * gRPC, REST APIs, HTTP * Integrating devices in
        more
        FEATURED
        The Onyx Research Data Tech organization represents a major investment by GSK R&D and Digital & Tech, designed to deliver a step-change in our ability to leverage data, knowledge, and prediction to find new medicines. * Building a next-generation data experience for GSKs scientists, engineers, and decision-makers, increasing productivity and reducing time spent on data mechanics * Providing best-in-class AI/ML and data analysis environments to accelerate our predictive capabilities and attract top-tier talent * Aggressively engineering our data at scale to unlock the value of our combined data assets * Implementing scientific technology products that leverage the data and capabilities provisioned by Onyx - As a Staff Application Engineer (Individual Contributor), you are a highly experienced technical leader who delivers high-impact engineering outcomes across multipl
        The Onyx Research Data Tech organization represents a major investment by GSK R&D and Digital & Tech, designed to deliver a step-change in our ability to leverage data, knowledge, and prediction to find new medicines. * Building a next-generation data experience for GSKs scientists, engineers, and decision-makers, increasing productivity and reducing time spent on data mechanics * Providing best-in-class AI/ML and data analysis environments to accelerate our predictive capabilities and attract top-tier talent * Aggressively engineering our data at scale to unlock the value of our combined data assets * Implementing scientific technology products that leverage the data and capabilities provisioned by Onyx - As a Staff Application Engineer (Individual Contributor), you are a highly experienced technical leader who delivers high-impact engineering outcomes across multipl
        more
        Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
        Location/s: London - Recruiter contact: Nikki George - Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We work across incredible global industries, delivering exciting work that is defining our future and making an important societal impact in the communities we serve. Our people power our performance we succeed when they do. With countless opportunities to collaborate, learn, and grow, the possibilities for excellence are as varied as every individual. Whether you want to grow as a subject matter expert or broaden your experience with roles across our international community, youre surrounded by global specialists who want to combine their expertise and champion you to be your best. As a proudly employee-owned business, we benefit our clients, our communities, a
        more
        Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of investments, from primary fund commitments to co-investments and secondary purchases, across private equity, real assets and private credit. We have partnered with more than 650 clients, including institutional investors of all sizes as well as a growing number of private wealth advisers and investors, with approximately $65bn in discretionary assets under management (as of December 31, 2023). Leveraging our specialized experience and global team of professionals across Europe, the Americas and Asia, we invest with purpose and lead with expertise to build secure financial futures. For further details please visit - Purpose of Position
        Pantheon has been at the forefront of private markets investing for more than 40 years, earning a reputation for providing innovative solutions covering the full lifecycle of investments, from primary fund commitments to co-investments and secondary purchases, across private equity, real assets and private credit. We have partnered with more than 650 clients, including institutional investors of all sizes as well as a growing number of private wealth advisers and investors, with approximately $65bn in discretionary assets under management (as of December 31, 2023). Leveraging our specialized experience and global team of professionals across Europe, the Americas and Asia, we invest with purpose and lead with expertise to build secure financial futures. For further details please visit - Purpose of Position
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        London, UK - Up to £60/hour Outside IR35 - Active SC Clearance required - iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
        London, UK - Up to £60/hour Outside IR35 - Active SC Clearance required - iO Associates have aligned exclusively with a multi-nation defence alliance to find an MS Dynamics Developer. The ideal candidate would have extensive hands-on experience across the full Dynamics 365 F&O lifecycle, with strong skills in customisation, integrations, automation, Power Platform development, AI-led enhancements, and stakeholder engagement. * Lead customisation, configuration, and enhancement of Dynamics 365 F&O, ensuring scalable, maintainable solutions. * Drive end-to-end delivery across the full ERP lifecycle, including development, integrations, testing, deployment, and post-go-live support. * Build automated workflows and integrations using Power Platform, REST APIs, and low-code tools to improve business processes.
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        FEATURED

        Backend Software Engineer TypeScript Node AWS

        Client Server
        Shoreditch, East London (E1), EC2A
        £75000 - £85000 per annum + benefits
        Backend Software Engineer / Developer (TypeScript Node AWS) Remote to £85k - Are you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a Backend Software Engineer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle. There's a remote first policy so you can work from home on a fulltime basis with the caveat that you'll meet up with the team in London once a month (expenses paid); there's also flexible working h
        Backend Software Engineer / Developer (TypeScript Node AWS) Remote to £85k - Are you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a Backend Software Engineer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle. There's a remote first policy so you can work from home on a fulltime basis with the caveat that you'll meet up with the team in London once a month (expenses paid); there's also flexible working h
        more
        PREMIUM
        Our Purpose - Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary - Customer Delivery Europe is part of the Global Customer Delivery & Care and Europe International Markets organization and plays a critical role ensuring the flawless delivery of Mastercard products and solutions for our customers. We partner with global and regional business units to provide value through our innovation and expertise; whilst deliver
        Our Purpose - Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary - Customer Delivery Europe is part of the Global Customer Delivery & Care and Europe International Markets organization and plays a critical role ensuring the flawless delivery of Mastercard products and solutions for our customers. We partner with global and regional business units to provide value through our innovation and expertise; whilst deliver
        more
        Our Purpose - Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary - Overview - We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clien
        Our Purpose - Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary - Overview - We are looking for a software engineer to join an award winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clien
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        Senior DeFi Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Up to £175,000 per annum
        DeFi - Remote - Upto€200k+ Tokens - Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience - Background in DeFi : Having worked at a DeFi company or shipped meaningful DeFi projects (AMMs, bots, indexers, trading systems, or protocol integ
        DeFi - Remote - Upto€200k+ Tokens - Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience - Background in DeFi : Having worked at a DeFi company or shipped meaningful DeFi projects (AMMs, bots, indexers, trading systems, or protocol integ
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        Senior Front End Engineer Vue.js

        Client Server
        Arundel Heights, Billericay (CM12), CM12 0EQ
        £65000 - £75000 per annum
        Senior Front End Engineer / Developer (Vue 3) Billericay / WFH to £75k - Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions provider that has experienced great success in the last year and is growing as a result. As a Senior JavaScript Developer you will take ownership of projects within an Agile development environment, with a focus on Vue 3 front end development to help evolve and scale the existing platforms as well as working on new Greenfield projects; you'll be able to take project ownership and manage all aspects of the frontend stack to produce white labelled Progressive Web Applications and Websites of the highest quality for a broad range of big name retail clients.
        Senior Front End Engineer / Developer (Vue 3) Billericay / WFH to £75k - Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions provider that has experienced great success in the last year and is growing as a result. As a Senior JavaScript Developer you will take ownership of projects within an Agile development environment, with a focus on Vue 3 front end development to help evolve and scale the existing platforms as well as working on new Greenfield projects; you'll be able to take project ownership and manage all aspects of the frontend stack to produce white labelled Progressive Web Applications and Websites of the highest quality for a broad range of big name retail clients.
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        PREMIUM
        Date Posted: 05/12/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
        Date Posted: 05/12/2025 - Location: London - Job Type: Full time - London Hybrid (minimum 50% office based) Who are Just? We help people achieve a better later life. Thats our purpose and its the reason we exist. We are a fast-growing FTSE 250 company helping customers enjoy the retirement they deserve. We do this through a variety of market leading, award-winning products and services, delivered by a diverse team of over 1,400 purpose-led colleagues who genuinely put the customer at the heart of everything we do. This is a brilliant time to join our business. We are on an exciting growth journey to become the UKs most loved retirement expert. About the Role - We are leading a bold and transformative journey - and were looking for a Product Owner to join our flagship technology system transformation programme within our Retail B2B2C business.
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        Staff Software Engineer Robotics & Life Sciences Automation - Location: London, UK - Hybrid (3 days/week on site) Contract: 4 months with possibility of extension - Start: ASAP (Dec 2025 / Jan 2026) Automata: accelerating breakthroughs that save lives - Automata builds automation that accelerates life sciences: enabling faster drug discovery, next-generation personalised medicines, and high-precision diagnostics where turnaround time can mean the difference between life and death. We believe the future of biology depends on automation that is reliable, scalable and accessible and were building the platform that makes that possible. Our modular lab bench and digital automation platform already run mission-critical workflows in leading research organisations. The next evolution of our product will scale globally, unify robotics with reproducible software interfaces, and
        Staff Software Engineer Robotics & Life Sciences Automation - Location: London, UK - Hybrid (3 days/week on site) Contract: 4 months with possibility of extension - Start: ASAP (Dec 2025 / Jan 2026) Automata: accelerating breakthroughs that save lives - Automata builds automation that accelerates life sciences: enabling faster drug discovery, next-generation personalised medicines, and high-precision diagnostics where turnaround time can mean the difference between life and death. We believe the future of biology depends on automation that is reliable, scalable and accessible and were building the platform that makes that possible. Our modular lab bench and digital automation platform already run mission-critical workflows in leading research organisations. The next evolution of our product will scale globally, unify robotics with reproducible software interfaces, and
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        Senior Software Engineer (AI Focus) - £80,000-£140,000 + Benefits + Shares + Bonus | London, Edinburgh, or Manchester | Hybrid (Up to 3 Days Onsite per Week, usually less) Join one of the UK's most exciting AI consultancies, an official OpenAI Global Partner founded by a leadership team who have already built and sold a multimillion-pound tech business. They're expanding rapidly and looking for Senior AI/ML Software Engineers (Backend or Full Stack) with strong Python skills and a genuine passion for AI /ML, scalable systems, and modern cloud architecture. You don't need to be an AI or LLM expert yet, you'll learn directly from some of the best in the industry. What You'll Be Doing * Design and deploy scalable agentic applications using Python (and ideally JavaScript/TypeScript) * Build and maintain microservices, APIs, and CI/CD pipelines
        Senior Software Engineer (AI Focus) - £80,000-£140,000 + Benefits + Shares + Bonus | London, Edinburgh, or Manchester | Hybrid (Up to 3 Days Onsite per Week, usually less) Join one of the UK's most exciting AI consultancies, an official OpenAI Global Partner founded by a leadership team who have already built and sold a multimillion-pound tech business. They're expanding rapidly and looking for Senior AI/ML Software Engineers (Backend or Full Stack) with strong Python skills and a genuine passion for AI /ML, scalable systems, and modern cloud architecture. You don't need to be an AI or LLM expert yet, you'll learn directly from some of the best in the industry. What You'll Be Doing * Design and deploy scalable agentic applications using Python (and ideally JavaScript/TypeScript) * Build and maintain microservices, APIs, and CI/CD pipelines
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        What is the average salary for API in Colchester?

        Average salary per year
        £42,499

        The average salary for a API in Colchester is £42,499. API in Colchester salaries range from £30,000 to £47,499.

        Frequently Asked Questions

        How many contract API jobs are there in Colchester?
        There are 1 contract API jobs within 20 miles of Colchester available on CWJobs right now.

        What other similar jobs are there to contract API jobs in Colchester?
        As well as contract API jobs in Colchester, you can find contract Qa Automation, Quality Assurance, Automation, amongst many others.