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10 Contract API jobs in South Lambeth + 20 miles
60 exact matches jobs are outside your preferred location
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API and automation experience Integrating with REST APIs, building automation scripts (Python, PowerShell, Bash, etc.), and embedding configuration into CI/CD pipelines.
API and automation experience Integrating with REST APIs, building automation scripts (Python, PowerShell, Bash, etc.), and embedding configuration into CI/CD pipelines.
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Overview - We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities - Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
Overview - We are seeking an experienced PHP developer to join our development team. The role involves building and maintaining web applications that integrate with our core quote and sales engines. The successful candidate will have strong PHP and MySQL expertise, with the ability to write efficient, well-structured code without over-reliance on heavy frameworks. Key Responsibilities - Develop and maintain PHP applications that integrate with our back-end systems. Design and optimise MySQL databases, including complex queries and schema design for performance and scalability. Implement APIs for third-party website integration. Work across both back-end and front-end as needed (HTML, CSS, JavaScript). Ensure code quality, efficiency, and security best practices. Collaborate with team members to deliver reliable and maintainable solutions. Essential Skills & Experience
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Join a global financial services leader at the forefront of electronic trading infrastructure. They are looking for a skilled Python Software Engineer to contribute to cutting-edge automation tools powering low-latency trading systems. This is a Senior engineering role within a high-impact team shaping infrastructure for global markets. What You'll Do * Design, build, and maintain automation tools supporting electronic trading infrastructure * Take ownership of components from design to deployment * Collaborate across teams in a fast-paced, regulated environment?? Tech You'll Work With * Core Python with OOP, data structures, and regex * Linux CLI, debugging with tcpdump, strace, etc. * Git, Jenkins, TDD, and CI pipelines * RESTful APIs, Ansible (bonus), and even Golang (bonus)? What We're Looking For * Strong Python development skills and testing experience
Join a global financial services leader at the forefront of electronic trading infrastructure. They are looking for a skilled Python Software Engineer to contribute to cutting-edge automation tools powering low-latency trading systems. This is a Senior engineering role within a high-impact team shaping infrastructure for global markets. What You'll Do * Design, build, and maintain automation tools supporting electronic trading infrastructure * Take ownership of components from design to deployment * Collaborate across teams in a fast-paced, regulated environment?? Tech You'll Work With * Core Python with OOP, data structures, and regex * Linux CLI, debugging with tcpdump, strace, etc. * Git, Jenkins, TDD, and CI pipelines * RESTful APIs, Ansible (bonus), and even Golang (bonus)? What We're Looking For * Strong Python development skills and testing experience
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Our Client are looking for an SC cleared Frontend Engineer who thrives in environments where information is dense, the interface is critical, and the work matters. You excel at building responsive, intuitive UIs that surface complex machine learning insights to end users with clarity and usability. You care about the user journey as much as the underlying data, and you are motivated by delivering real-world impact in demanding operational settings. * Design and implement frontend interfaces that support live and retrospective exploration of data from complex systems * Build and iterate on React-based UIs for transcription review, dynamic querying, and data visualisation * Integrate user-facing features with backend APIs and machine learning services, including LLM outputs, NLP pipelines and structured data stores
Our Client are looking for an SC cleared Frontend Engineer who thrives in environments where information is dense, the interface is critical, and the work matters. You excel at building responsive, intuitive UIs that surface complex machine learning insights to end users with clarity and usability. You care about the user journey as much as the underlying data, and you are motivated by delivering real-world impact in demanding operational settings. * Design and implement frontend interfaces that support live and retrospective exploration of data from complex systems * Build and iterate on React-based UIs for transcription review, dynamic querying, and data visualisation * Integrate user-facing features with backend APIs and machine learning services, including LLM outputs, NLP pipelines and structured data stores
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Lead SAP Analytics Cloud (SAC) Consultant
Lead SAP Analytics Cloud (SAC) Consultant
LA International Computer Consultants Ltd
London
£600 - £650 per day
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
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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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Job Title: Firewall Engineer - Location: London or Gloucester (Hybrid) Contract Type: 6 months, Inside IR35 - Day Rate:£360 - The Role - Were looking for a skilled Firewall Engineer with active UK SC Clearance to join on a 6-month contract. Youll be responsible for firewall rule optimisation, configuration, and transformation activities across complex IT and OT environments. This role requires strong experience across multiple vendors (Palo Alto, Fortinet, Cisco ASA, Check Point) and the ability to collaborate with technical and non-technical stakeholders to maintain compliance and security best practice. Key Responsibilities * Configure, implement, and manage firewall solutions across multi-vendor environments * Review, optimise, and enforce firewall rules and policies * Support migrations and replacement projects for firewall infrastructure
Job Title: Firewall Engineer - Location: London or Gloucester (Hybrid) Contract Type: 6 months, Inside IR35 - Day Rate:£360 - The Role - Were looking for a skilled Firewall Engineer with active UK SC Clearance to join on a 6-month contract. Youll be responsible for firewall rule optimisation, configuration, and transformation activities across complex IT and OT environments. This role requires strong experience across multiple vendors (Palo Alto, Fortinet, Cisco ASA, Check Point) and the ability to collaborate with technical and non-technical stakeholders to maintain compliance and security best practice. Key Responsibilities * Configure, implement, and manage firewall solutions across multi-vendor environments * Review, optimise, and enforce firewall rules and policies * Support migrations and replacement projects for firewall infrastructure
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Hybrid Python Developer – 9-12 Month Contract (Outside IR35)
Hybrid Python Developer – 9-12 Month Contract (Outside IR35)
Halian Technology Limited
RG1, Reading
From £375 to £450 per day
HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
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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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Implement schema registries, data contracts, and API-first data governance.
Implement schema registries, data contracts, and API-first data governance.
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Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
Lead the design and development of automated UI and API testing solutions using SpecFlow and Playwright, written in C# .NET.
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Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
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1. Investigate complex technical issues escalated from our global CX team using tools like Chrome DevTools, API logs, and internal monitoring systems.
1. Investigate complex technical issues escalated from our global CX team using tools like Chrome DevTools, API logs, and internal monitoring systems.
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Design, implement, and execute automated tests across multiple levels, including unit, integration, contract, API, end-to-end (e2e), and performance testing. * Experience with testing across various levels, including unit, integration, contract, API, e2e, and performance testing.
Design, implement, and execute automated tests across multiple levels, including unit, integration, contract, API, end-to-end (e2e), and performance testing. * Experience with testing across various levels, including unit, integration, contract, API, e2e, and performance testing.
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Technology Java 1.8+, Spring Framework, Restful Services (JAX-RS), REST and SOAP API, Java Testing Frameworks, Openshift * Java 1.8+, Spring Framework, Spring Batch, Restful Services (JAX-RS), REST and SOAP API, Java Testing Frameworks(JUnit, Mockito, PowerMockito), Vertx/Spring Boot Microservices, JPA/JDBI or Mybatis, Openshift, ORM Framework, Schedulers, Appdynamics/Grafana.
Technology Java 1.8+, Spring Framework, Restful Services (JAX-RS), REST and SOAP API, Java Testing Frameworks, Openshift * Java 1.8+, Spring Framework, Spring Batch, Restful Services (JAX-RS), REST and SOAP API, Java Testing Frameworks(JUnit, Mockito, PowerMockito), Vertx/Spring Boot Microservices, JPA/JDBI or Mybatis, Openshift, ORM Framework, Schedulers, Appdynamics/Grafana.
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Play a key role in the Practice Management team contributing to frontend, API and infrastructure tasks. * You have experience building and architecting RESTful and GraphQL APIs as well as designing and implementing API integrations.
Play a key role in the Practice Management team contributing to frontend, API and infrastructure tasks. * You have experience building and architecting RESTful and GraphQL APIs as well as designing and implementing API integrations.
Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
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You can translate rulebooks or API specs into requirements
You can translate rulebooks or API specs into requirements
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Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling.
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling.
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Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling, automation frameworks, platform tools, storefront tools
Experience of technical areas and tooling when testing on mobile: Network tools, performance tools, analytics tools, API test tooling, automation frameworks, platform tools, storefront tools
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Making a meaningful difference with mission-critical software that empowers communities to thrive. ReadyTech is more than just a one-trick pony playing in one market with one product, or one customer. We re-imagine, design, develop and deliver technology to solve our customers diverse problems supporting multiple businesses across a variety of markets to be ready for anything. Were an ASX-listed company which means we are stable, have a strong track record of sustainable growth and have a significant number of long-term customers. So, what does this mean for you? It means we can offer you an experience that will push you to be your best, provide career-building challenges, and that will offer you numerous growth opportunities that cant be found in any other company. Its an inclusive environment where there is no place for politics, where we get our heads together to s
Making a meaningful difference with mission-critical software that empowers communities to thrive. ReadyTech is more than just a one-trick pony playing in one market with one product, or one customer. We re-imagine, design, develop and deliver technology to solve our customers diverse problems supporting multiple businesses across a variety of markets to be ready for anything. Were an ASX-listed company which means we are stable, have a strong track record of sustainable growth and have a significant number of long-term customers. So, what does this mean for you? It means we can offer you an experience that will push you to be your best, provide career-building challenges, and that will offer you numerous growth opportunities that cant be found in any other company. Its an inclusive environment where there is no place for politics, where we get our heads together to s
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Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently. A problem of this magnitude requires a massive scale and only the best people will be able to solve it. Are you in? Heres what were up to: Choco to life for our customers. At Choco, we believe technology should feel human. As a member of the Solutions Team , youll bring our vision to life: activating the full potential of Chocos products and people. Youll empower our Go-To-Market teams to deliver resilient results through scalable tools, evolving playbooks, and data-driven processes. As our first Demo Engineering Analyst , youll design the systems that allow our sales and customer success teams to show Chocos value in
Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently. A problem of this magnitude requires a massive scale and only the best people will be able to solve it. Are you in? Heres what were up to: Choco to life for our customers. At Choco, we believe technology should feel human. As a member of the Solutions Team , youll bring our vision to life: activating the full potential of Chocos products and people. Youll empower our Go-To-Market teams to deliver resilient results through scalable tools, evolving playbooks, and data-driven processes. As our first Demo Engineering Analyst , youll design the systems that allow our sales and customer success teams to show Chocos value in
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The Mission - At FLOX, we believe smarter farms lead to thriving chickens and healthier lives. Our mission is simple: healthier chickens benefit everyone. Thats why we built FLOX360, a system that uses Computer Vision, smart sensors, and real-time insights to transform poultry farming. By helping farmers improve welfare and efficiency, FLOX360 creates a win-win for birds, farmers, the environment, and people everywhere. Today, were watching 60 million chickens a year. We believe we are setting the standard for animal welfare and smart farming - and were just getting started. The People - Were a diverse team of engineers and entrepreneurs, representing over 13 nationalities and all walks of life - even a few vegetarians! We are brought together by a shared passion for meaningful impact. Empathetic Artisan - We approach our work with care, artistry, and genuine empathy
The Mission - At FLOX, we believe smarter farms lead to thriving chickens and healthier lives. Our mission is simple: healthier chickens benefit everyone. Thats why we built FLOX360, a system that uses Computer Vision, smart sensors, and real-time insights to transform poultry farming. By helping farmers improve welfare and efficiency, FLOX360 creates a win-win for birds, farmers, the environment, and people everywhere. Today, were watching 60 million chickens a year. We believe we are setting the standard for animal welfare and smart farming - and were just getting started. The People - Were a diverse team of engineers and entrepreneurs, representing over 13 nationalities and all walks of life - even a few vegetarians! We are brought together by a shared passion for meaningful impact. Empathetic Artisan - We approach our work with care, artistry, and genuine empathy
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Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
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About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
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