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23 Contract API jobs in Clewer Village + 20 miles
161 exact matches jobs are outside your preferred location
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Full Stack Software Engineer - AI Innovation
Full Stack Software Engineer - AI Innovation
Connexa
MK1, Milton Keynes
£60000 - £70000 per annum + 20% Bonus
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
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Please note that relevant training, guidance, and advice will be given. This document lists the responsibilities you will encompass in your daily role. Company purpose statement: To use the best technology to better connect people. Company Profile - We are an award-winning technology services company based in Bedford. Established in 2006, we have an outstanding growth record, fantastic clients, and an excellent working environment. Committed to delivering high-touch Technology services to the property sector, specifically skyscrapers, our aim is to provide the highest levels of service coupled with a great working environment. Were hiring an experienced Smart Systems Manager to lead the delivery, integration, and optimisation of smart technologies across multiple client properties. You will act as the central point of contact for all things smartfrom IoT sensors and a
Please note that relevant training, guidance, and advice will be given. This document lists the responsibilities you will encompass in your daily role. Company purpose statement: To use the best technology to better connect people. Company Profile - We are an award-winning technology services company based in Bedford. Established in 2006, we have an outstanding growth record, fantastic clients, and an excellent working environment. Committed to delivering high-touch Technology services to the property sector, specifically skyscrapers, our aim is to provide the highest levels of service coupled with a great working environment. Were hiring an experienced Smart Systems Manager to lead the delivery, integration, and optimisation of smart technologies across multiple client properties. You will act as the central point of contact for all things smartfrom IoT sensors and a
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Hays Software Engineering are looking for a Test Analyst to join a renowned London based Insurer with huge growth plans. What you will be doing:You will be part of a lean family type IT team responsible for all things tech operations and directly responsible for implementing a testing environment for electronic trading platforms. As well as the above, you will be responsible for liaising with internal stakeholders such as Actuarial, Underwriting and Finance professionals to ensure the smooth implementation of system updates. This specific client operates their IT team with 0 ego's. Therefore, there may be an element of mentoring newer members of the team and assisting where the business requires. What you'll receive in return:The opportunity to work for a people centric business that will allow you to own full trading platform implementations, from design to deploy, .
Hays Software Engineering are looking for a Test Analyst to join a renowned London based Insurer with huge growth plans. What you will be doing:You will be part of a lean family type IT team responsible for all things tech operations and directly responsible for implementing a testing environment for electronic trading platforms. As well as the above, you will be responsible for liaising with internal stakeholders such as Actuarial, Underwriting and Finance professionals to ensure the smooth implementation of system updates. This specific client operates their IT team with 0 ego's. Therefore, there may be an element of mentoring newer members of the team and assisting where the business requires. What you'll receive in return:The opportunity to work for a people centric business that will allow you to own full trading platform implementations, from design to deploy, .
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New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
New Senior Data Engineer Contract Roles We have multiple new Senior Data Engineer Contract roles for a London based financial services client of ours. This would be working on a greenfield project in a new team building out a digital platform. This is outside IR35, 1-2 days per week onsite in London and initial 6 month contract and an immediate start. The ideal candidate will be a data engineer from a software engineering background with machine learning experience. The rate available for this position is: £550-575pd * ETL / Data Pipelines / Data Integration * Python & Java (for building data pipelines & APIs) * Snowflake * AWS * Machine Learning * React or Angular Please apply directly or email me your CV on
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C# Engineer (Blazor Experience)
C# Engineer (Blazor Experience)
Hays
MK1, Milton Keynes
£350.0 - £400.0 per day + £350 - 400 per day Outside IR35
Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
Role OverviewOur client based in Milton Keynes is looking for a passionate and skilled C# Engineer with proven experience in Blazor to join their growing development team. This is a fantastic opportunity to work on high-performance web applications in a collaborative and innovative environment. You'll be working closely with a talented team of developers, designers, and product managers to deliver cutting-edge solutions that drive real value. Responsibilities * Build and maintain interactive, scalable web applications using Blazor and .NET technologies. * Collaborate with cross-functional teams to define, design, and implement new features. * Ensure code quality through code reviews, unit testing, and adherence to best practices. * Troubleshoot and resolve issues across the full stack. * Contribute to technical discussions and share knowledge with the wider team.
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Location: London, UK (Hybrid 3 days per week onsite)?? Type: Contract (6 months) | Rate: Market Rate (Inside IR35) About the Role - Our client, a leading global organization, is seeking an experienced and results-driven Technical Lead Braze Campaigns to join a leading technology team in London. In this role, you will lead the design, implementation, and optimization of data-driven, multi-channel customer engagement campaigns using the Braze platform. Youll guide and mentor technical teams, collaborate closely with marketing, product, and data stakeholders, and ensure the delivery of secure, scalable, and personalized customer journeys. Key Responsibilities * Lead the end-to-end technical implementation of Braze-powered campaigns across email, push notifications (mobile & web), in-app messaging, and content cards.
Location: London, UK (Hybrid 3 days per week onsite)?? Type: Contract (6 months) | Rate: Market Rate (Inside IR35) About the Role - Our client, a leading global organization, is seeking an experienced and results-driven Technical Lead Braze Campaigns to join a leading technology team in London. In this role, you will lead the design, implementation, and optimization of data-driven, multi-channel customer engagement campaigns using the Braze platform. Youll guide and mentor technical teams, collaborate closely with marketing, product, and data stakeholders, and ensure the delivery of secure, scalable, and personalized customer journeys. Key Responsibilities * Lead the end-to-end technical implementation of Braze-powered campaigns across email, push notifications (mobile & web), in-app messaging, and content cards.
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Skills * 5+ years of experience in IAM, with at least 3 years as a SailPoint specialist. * Strong hands-on experience with SailPoint IdentityIQ or IdentityNow. * Proficiency in Java, BeanShell, REST APIs and scripting languages (e.g., PowerShell, Python). * Experience integrating SailPoint with systems like Active Directory, Azure AD, Workday, ServiceNow etc. * Solid understanding of RBAC, ABAC, access certifications, provisioning and identity lifecycle management. * Familiarity with identity governance frameworks and compliance requirements. * Excellent communication, documentation and stakeholder engagement skills. Role * Act as the primary subject matter expert for SailPoint IdentityNow or IdentityIQ. * Lead design, implementation and integration of SailPoint solutions into existing identity infrastructure.
Skills * 5+ years of experience in IAM, with at least 3 years as a SailPoint specialist. * Strong hands-on experience with SailPoint IdentityIQ or IdentityNow. * Proficiency in Java, BeanShell, REST APIs and scripting languages (e.g., PowerShell, Python). * Experience integrating SailPoint with systems like Active Directory, Azure AD, Workday, ServiceNow etc. * Solid understanding of RBAC, ABAC, access certifications, provisioning and identity lifecycle management. * Familiarity with identity governance frameworks and compliance requirements. * Excellent communication, documentation and stakeholder engagement skills. Role * Act as the primary subject matter expert for SailPoint IdentityNow or IdentityIQ. * Lead design, implementation and integration of SailPoint solutions into existing identity infrastructure.
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Full Stack Developer Node.Js / React
Full Stack Developer Node.Js / React
Halian Technology Limited
W1, Central London
From £60,000 to £65,000 per annum Plus bonus and benefits
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
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Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions * Champion best practices in frontend engineering, testing, and CI/CD * Mentor and support teammates to raise the engineering
Senior Frontend Engineer (Next.js / React) High-Growth SaaS | Build Elegant, User-First Products - In partnership with Robert Half Limited. We're a high-growth SaaS company scaling fast, and we're looking for a Senior Frontend Engineer to join our team. This is a chance to shape products used by thousands of customers, working with modern tools and a team that values craftsmanship, speed, and impact. What You'll Do * Build and scale complex, high-performing web applications with Next.js and React * Collaborate with design and product to create polished, intuitive, responsive interfaces * Drive improvements in performance, accessibility, and scalability across platforms * Contribute to architecture decisions, code reviews, and design discussions * Champion best practices in frontend engineering, testing, and CI/CD * Mentor and support teammates to raise the engineering
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AI/ LLM - Python React Engineer - Contract Opportunity - London Hybrid based - 70% Python - 30% React - Job Description - We are seeking a highly skilled Python Fullstack Engineer with extensive experience in both front-end and back-end development. This role is very interesting as you will also be working with LLM's and AI/ML. * Knowledge of LangChain or Haystack or Llamalndex - Essential Skills * 10+ years of experience in designing and developing operational support systems and automation solutions using Python. * Front-end development skills, including designing and implementing user interfaces using JavaScript and frameworks such as React. * Back-end development skills, including maintaining server-side logic using Python, managing APIs, and integrating third-party services. * Experience with database management using Postgres to ensure application data integrity
AI/ LLM - Python React Engineer - Contract Opportunity - London Hybrid based - 70% Python - 30% React - Job Description - We are seeking a highly skilled Python Fullstack Engineer with extensive experience in both front-end and back-end development. This role is very interesting as you will also be working with LLM's and AI/ML. * Knowledge of LangChain or Haystack or Llamalndex - Essential Skills * 10+ years of experience in designing and developing operational support systems and automation solutions using Python. * Front-end development skills, including designing and implementing user interfaces using JavaScript and frameworks such as React. * Back-end development skills, including maintaining server-side logic using Python, managing APIs, and integrating third-party services. * Experience with database management using Postgres to ensure application data integrity
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Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
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Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
Python Developer - sought by leading investment bank based in Canary Wharf - Contract - Hybrid - Key Responsibilities - o Historical index back-testing - o Daily pricing and index computation - o Weighting and rebalancing logic - o Attribution and decomposition analytics * Build robust APIs using FastAPI or Flask * Collaborate directly with business users to gather requirements and iterate quickly * Implement testing, versioning, and data validation processes * Ensure integration with internal data sources and reporting tools - Required Skills * 5+ years of Python development experience, ideally in financial services or commodities * Strong proficiency in Pandas, NumPy, and time-series data manipulation * Proven experience with FastAPI or Flask * Familiarity with large datasets and real-time data pipelines * Excellent debugging, profiling, and performance optimization
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Lead Software Engineer - London (Hybrid 1x Per Month) Salary: Up to £100k + Benefits + Stock Options - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and fos
Lead Software Engineer - London (Hybrid 1x Per Month) Salary: Up to £100k + Benefits + Stock Options - About Us - Our client is a Insurtech Unicorn looking to expand their engineering team. With the opportunity to work on existing products which have generated millions in revenue to something new changing the landscape of the insurance world, this is the perfect opportunity for a results driven and growth focussed Senior engineer looking to start an ambitious business. The Role - We're seeking a Lead Fullstack Engineer to own the frontend architecture and elevate the B2C user experience across our digital products. This is a high-impact role requiring technical vision, hands-on expertise, and leadership to drive innovation in a rapidly evolving environment. As part of a cross-functional, agile team, you will shape the frontend roadmap, champion best practices, and fos
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Lead Performance Test Engineer
Lead Performance Test Engineer
Spectrum It Recruitment Limited
SO50, Eastleigh
£60000 - £65000.00 per annum
Practical skills in C#, Web API testing, Azure and modern test methodologies
Practical skills in C#, Web API testing, Azure and modern test methodologies
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Knowledge of microservice architecture and API design principles
Knowledge of microservice architecture and API design principles
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Implement schema registries, data contracts, and API-first data governance.
Implement schema registries, data contracts, and API-first data governance.
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Experience with API design standards & integration patterns
Experience with API design standards & integration patterns
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Senior Security Engineer (PurView, Sentinel, Defender)
Senior Security Engineer (PurView, Sentinel, Defender)
Invitise Ltd
WC1A, Central London
Up to £70,000 per annum + Excellent Benefits
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
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Experience with API design and development for both internal and external use cases
Experience with API design and development for both internal and external use cases
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Senior Software Engineer / Software Developer
Senior Software Engineer / Software Developer
AWD Online
MK44, Bedford
From £60,000 to £70,000 per annum + Benefits
We have a fantastic new job opportunity for a Senior Software Engineer / Software Developer who has proven software application development experience across the stack C#, ASP, .NET, Blazor, API Development, Microservices, Containers and Deployment Pipelines. * Strong software development skills across the stack using C#, ASP .NET, Blazor, API development, microservices, containers, and deployment pipelines
We have a fantastic new job opportunity for a Senior Software Engineer / Software Developer who has proven software application development experience across the stack C#, ASP, .NET, Blazor, API Development, Microservices, Containers and Deployment Pipelines. * Strong software development skills across the stack using C#, ASP .NET, Blazor, API development, microservices, containers, and deployment pipelines
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Our ideal candidate is an experienced and resourceful engineer, comfortable building relationships with other established product teams to understand where we can use existing learnings to influence decisions and align on approaches, collaborating with frontend engineers to guide and agree API behaviours and expectations through documented contracts, and working closely with product stakeholders to agree on MVP requirements.
Our ideal candidate is an experienced and resourceful engineer, comfortable building relationships with other established product teams to understand where we can use existing learnings to influence decisions and align on approaches, collaborating with frontend engineers to guide and agree API behaviours and expectations through documented contracts, and working closely with product stakeholders to agree on MVP requirements.
Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
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Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Related Jobs
Locations
- Shadwell
- Bermondsey
- Fivensgreen
- Haslemere Industrial Estate
- Holloway
- Kempston
- Mayfair
- South Kensington
- Southwark
- Thames View Industrial Park
- City of London
- Central London
- West End
- North West London
- Milton Keynes
- Reading
- East London
- Northampton
- South West London
- Windsor
- London
- Berkshire
- Buckinghamshire
- Hampshire
- Oxfordshire
- Northamptonshire
- Bedfordshire
- Hertfordshire
- Surrey
- West Sussex
- South East
- East Midlands
- Midlands