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2 Contract API jobs in Brookfields, Cambridge + 20 miles
98 exact matches jobs are outside your preferred location
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Location: Remote (UK-based) / very occasional travel to London - A fast-growing global technology company specialising in data-driven B2B solutions is seeking a contract Senior Software Engineer to join its high-performing engineering team. This is a remote UK based role, with very occasional travel to London. The company builds scalable platforms that support enterprise-level marketing and sales intelligence, serving thousands of users across multiple industries. The Role - This is a hands-on senior engineering role focused on designing and developing backend services and APIs using modern technologies such as Java 17+, Golang, and AWS. You'll be part of a collaborative team working on high-availability microservices, contributing to architecture decisions, mentoring junior developers, and ensuring robust testing and deployment practices. Key Responsibilities
Location: Remote (UK-based) / very occasional travel to London - A fast-growing global technology company specialising in data-driven B2B solutions is seeking a contract Senior Software Engineer to join its high-performing engineering team. This is a remote UK based role, with very occasional travel to London. The company builds scalable platforms that support enterprise-level marketing and sales intelligence, serving thousands of users across multiple industries. The Role - This is a hands-on senior engineering role focused on designing and developing backend services and APIs using modern technologies such as Java 17+, Golang, and AWS. You'll be part of a collaborative team working on high-availability microservices, contributing to architecture decisions, mentoring junior developers, and ensuring robust testing and deployment practices. Key Responsibilities
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AI Platform Operations Manager
AI Platform Operations Manager
Networking People (UK) Limited
London
£550 - £600 per day + Outside of IR35
Contract: AI Platform Operations Manager - Duration: 6 Months - Start Date: ASAP - Location: Remote with travel to multiple sites - Rate: Negotiable - Support Engineer / Cluster Administrator to provide Level 1 and Level 2 support for AI platform. This role will be customer facing, involve technical troubleshooting, and collaboration with vendor engineering teams to ensure seamless AI platform operations. Key Responsibilities * L1 support for customer-reported issues and requests * L2 support by diagnosing, replicating, and troubleshooting issues across platform and infrastructure. * Coordinate resolution of complex issues (L3) to (vendor) product/engineering teams and manage vendor responses * Monitor system health, alerts, and customer usage patterns * Document solutions/workarounds, create and maintain knowledge, document support procedures * Automate common tasks
Contract: AI Platform Operations Manager - Duration: 6 Months - Start Date: ASAP - Location: Remote with travel to multiple sites - Rate: Negotiable - Support Engineer / Cluster Administrator to provide Level 1 and Level 2 support for AI platform. This role will be customer facing, involve technical troubleshooting, and collaboration with vendor engineering teams to ensure seamless AI platform operations. Key Responsibilities * L1 support for customer-reported issues and requests * L2 support by diagnosing, replicating, and troubleshooting issues across platform and infrastructure. * Coordinate resolution of complex issues (L3) to (vendor) product/engineering teams and manage vendor responses * Monitor system health, alerts, and customer usage patterns * Document solutions/workarounds, create and maintain knowledge, document support procedures * Automate common tasks
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Google SecOps Engineer (SOAR/UEBA) - Outside IR35
Google SecOps Engineer (SOAR/UEBA) - Outside IR35
SF Recruitment (Tech)
Waterloo, SE1
£500 - 700 per day
I am currently assisting a client who operate in a regulated industry, financial services, who are currently embarking a programme of work focused on maturity/designing and implementing security posture utilising SIEM tools such as Google Chronicle & implementing UEBA/SOAR (Security Orchestration, Automation, and Response / User and Entity Behaviour Analytics) built on GCP/Google Cloud so Google SecOps/Security Operations experience is highly desirable. Key Responsibilities; - Enable and validate UEBA alerting within Chronicle SIEM, based on log sources - Deliver a minimum viable UEBA capability with tested detection logic - Provide engineering support to accelerate onboarding of log sources required for UEBA enrichment and detection fidelity - Conduct current state assessment of detection engineering capabilities and log source coverage
I am currently assisting a client who operate in a regulated industry, financial services, who are currently embarking a programme of work focused on maturity/designing and implementing security posture utilising SIEM tools such as Google Chronicle & implementing UEBA/SOAR (Security Orchestration, Automation, and Response / User and Entity Behaviour Analytics) built on GCP/Google Cloud so Google SecOps/Security Operations experience is highly desirable. Key Responsibilities; - Enable and validate UEBA alerting within Chronicle SIEM, based on log sources - Deliver a minimum viable UEBA capability with tested detection logic - Provide engineering support to accelerate onboarding of log sources required for UEBA enrichment and detection fidelity - Conduct current state assessment of detection engineering capabilities and log source coverage
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£260 Per Day - Fully Remote - 12 Month Contract - We’re looking for a Quality Engineer who’s passionate about building robust, reliable software and embedding quality into every stage of the development lifecycle. You might come from a testing or development background, but you’ll have a solid grasp of modern QA practices, automation, and cloud-native architectures. You’ll be confident in spotting issues early, designing test strategies that scale, and collaborating with engineers to deliver high-quality solutions for our customers. What you’ll do * Shape and execute test strategies with QA and engineering teams * Bring testing earlier into the SDLC to catch issues sooner * Use a mix of manual, exploratory and automated testing where it makes sense * Build and maintain automated tests that run reliably in CI/CD
£260 Per Day - Fully Remote - 12 Month Contract - We’re looking for a Quality Engineer who’s passionate about building robust, reliable software and embedding quality into every stage of the development lifecycle. You might come from a testing or development background, but you’ll have a solid grasp of modern QA practices, automation, and cloud-native architectures. You’ll be confident in spotting issues early, designing test strategies that scale, and collaborating with engineers to deliver high-quality solutions for our customers. What you’ll do * Shape and execute test strategies with QA and engineering teams * Bring testing earlier into the SDLC to catch issues sooner * Use a mix of manual, exploratory and automated testing where it makes sense * Build and maintain automated tests that run reliably in CI/CD
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Senior Technical Business Analyst
Senior Technical Business Analyst
Hays
London
£650.0 - £800.0 per annum + £700 - £750/day inside via Umbrella
Your new company - We are currently partnered exclusively with a financial services institution to appoint a Senior Technical Business Analyst to an initial 6-month contract. Working in the Listed Derivatives area of the business, if you're an experienced technical BA with a strong understanding of US Treasury and interest rate futures/futures as a whole, then we want to hear from you. Contract Length: 6-months + potential extension - Start Date: ASAP - Rate: £700 - £750/day inside via Umbrella - Working Arrangements: Hybrid - Your new role and what you'll need to succeed - Working closely with IT, development, and the operations test team, your role as the Senior Technical BA will act as the bridge between IT and the business, translating business needs into technical requirements and ensuring aligned communication across complex technical projects.
Your new company - We are currently partnered exclusively with a financial services institution to appoint a Senior Technical Business Analyst to an initial 6-month contract. Working in the Listed Derivatives area of the business, if you're an experienced technical BA with a strong understanding of US Treasury and interest rate futures/futures as a whole, then we want to hear from you. Contract Length: 6-months + potential extension - Start Date: ASAP - Rate: £700 - £750/day inside via Umbrella - Working Arrangements: Hybrid - Your new role and what you'll need to succeed - Working closely with IT, development, and the operations test team, your role as the Senior Technical BA will act as the bridge between IT and the business, translating business needs into technical requirements and ensuring aligned communication across complex technical projects.
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Job title: Digital Developer - Location: London, UK - Job type: Contract (Inside IR35) About the Role You will be responsible for building and customizing digital experiences. This role is ideal for developers who are enthusiastic about modern web technologies, insurance transformation, and agile delivery. What will you do? * Develop and customize digital insurance applications using Guidewire JDP, React.js, and Figma-integrated design systems. In some cases, development may be custom built, using common front-end frameworks like React.js, Angular, or Vue.js. * Build and maintain reusable components and micro frontends for Guidewires CustomerEngage and EnterpriseEngage portals, as well as other custom or third-party digital platforms. * Integrate digital frontends with Guidewire PolicyCenter, BillingCenter, and ClaimCenter via Cloud APIs and GW Integration Gateway.
Job title: Digital Developer - Location: London, UK - Job type: Contract (Inside IR35) About the Role You will be responsible for building and customizing digital experiences. This role is ideal for developers who are enthusiastic about modern web technologies, insurance transformation, and agile delivery. What will you do? * Develop and customize digital insurance applications using Guidewire JDP, React.js, and Figma-integrated design systems. In some cases, development may be custom built, using common front-end frameworks like React.js, Angular, or Vue.js. * Build and maintain reusable components and micro frontends for Guidewires CustomerEngage and EnterpriseEngage portals, as well as other custom or third-party digital platforms. * Integrate digital frontends with Guidewire PolicyCenter, BillingCenter, and ClaimCenter via Cloud APIs and GW Integration Gateway.
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Python Developer - 9-12 Month Contract (Outside IR35)
Python Developer - 9-12 Month Contract (Outside IR35)
Halian Technology Limited
W2, West London
From £450 to £500 per day
Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: 480per 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 Design Agencylooking forexperiencedPython 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 specialising in events services and design, applyingthe power of their collective imagination to creative, commercial, and cultural challenges for massive enterprises such as Amazon and Google
Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: 480per 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 Design Agencylooking forexperiencedPython 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 specialising in events services and design, applyingthe power of their collective imagination to creative, commercial, and cultural challenges for massive enterprises such as Amazon and Google
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Experience with API management, middleware, data flow platforms?
Experience with API management, middleware, data flow platforms?
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Senior Java Microservices AWS developer
Senior Java Microservices AWS developer
Stott & May Professional Search Limited
London
£460 - £510 per annum
As a Senior Java Microservices AWS Developer, you will be responsible for the design and development of web applications using Java and AWS Serverless Architecture (Lambda, DynamoDB, ECS Fargate, SQS, SNS, Kinesis, CloudWatch, CloudFormation, IAM, CodeBuild, Security Groups, API Gateway, ALBs, KMS, Secrets Manager, Parameter Store, and S3). Proven proficiency in AWS Serverless Architecture (Lambda, DynamoDB, ECS Fargate, SQS, SNS, Kinesis, CloudWatch, CloudFormation, IAM, CodeBuild, Security Groups, API Gateway, ALBs, KMS, Secrets Manager, Parameter Store, and S3).
As a Senior Java Microservices AWS Developer, you will be responsible for the design and development of web applications using Java and AWS Serverless Architecture (Lambda, DynamoDB, ECS Fargate, SQS, SNS, Kinesis, CloudWatch, CloudFormation, IAM, CodeBuild, Security Groups, API Gateway, ALBs, KMS, Secrets Manager, Parameter Store, and S3). Proven proficiency in AWS Serverless Architecture (Lambda, DynamoDB, ECS Fargate, SQS, SNS, Kinesis, CloudWatch, CloudFormation, IAM, CodeBuild, Security Groups, API Gateway, ALBs, KMS, Secrets Manager, Parameter Store, and S3).
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Senior Security Engineer Defender PurView Sentinel
Senior Security Engineer Defender PurView Sentinel
Invitise Ltd
EC1A, City of London
Up to £500 per day Outside IR35
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Full Stack Developer Remote
Full Stack Developer Remote
LDNY People Ltd
SE10, South East London
From £40 to £60 per hour negotiable fully remote 5 years work
Experience in REST API Design and Development.
Experience in REST API Design and Development.
4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
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Proficiency with Git workflows, LAMP stack, and REST API integrations.
Proficiency with Git workflows, LAMP stack, and REST API integrations.
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You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
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Deep understanding of AWS services such as Lambda, DynamoDB, S3, API Gateway and CloudFormation
Deep understanding of AWS services such as Lambda, DynamoDB, S3, API Gateway and CloudFormation
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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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London/Hybrid - Slalom is a global, human-centric business and technology consulting firm. We specialise in partnering with organisations that aspire to excellence, helping them tackle complex challenges and achieve transformative results through strategy, technology, and business transformation services. By prioritising people, Slalom creates a unique consulting experience, with a team of strategists and engineers delivering practical, end-to-end solutions that drive impactful outcomes for our clients. We empower people and organisations to dream bigger, move faster, and build better tomorrows for all. Our Software Engineering team builds the core applications and services that power our products and deliver value to users around the world. We focus on creating scalable, secure, and high-performance systems that enable rapid innovation and seamless user experiences.
London/Hybrid - Slalom is a global, human-centric business and technology consulting firm. We specialise in partnering with organisations that aspire to excellence, helping them tackle complex challenges and achieve transformative results through strategy, technology, and business transformation services. By prioritising people, Slalom creates a unique consulting experience, with a team of strategists and engineers delivering practical, end-to-end solutions that drive impactful outcomes for our clients. We empower people and organisations to dream bigger, move faster, and build better tomorrows for all. Our Software Engineering team builds the core applications and services that power our products and deliver value to users around the world. We focus on creating scalable, secure, and high-performance systems that enable rapid innovation and seamless user experiences.
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Senior Site Reliability Engineer, Managed Kubernetes - Europe
Senior Site Reliability Engineer, Managed Kubernetes - Europe
Lambda Group Limited
London
£161,000 - £310,000 a year
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
Proven experience provisioning Kubernetes using tools such as kubeadm, Cluster API, or similar
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Lead Java Engineer - IBM Sterling OMS & Sterling Intelligent Promising (SIP)
Lead Java Engineer - IBM Sterling OMS & Sterling Intelligent Promising (SIP)
Mindera
London
Competitive
Familiarity with API-based orchestration between OMS, SIP, and external fulfilment or inventory systems.
Familiarity with API-based orchestration between OMS, SIP, and external fulfilment or inventory systems.
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Additionally, our apps and API are trusted by tens of thousands of drivers and fleets including Blue Badge innovators Motability Operations.
Additionally, our apps and API are trusted by tens of thousands of drivers and fleets including Blue Badge innovators Motability Operations.
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Senior Back End Developer .NET - Fintech Remote - Senior Back End Developer .NET wanted as our team is growing fast! Calling highly motivated, bright candidates who are looking for a career at an exciting award winning FinTech firm! Company: Wealth Dynamix - Role: Senior Back End Developer .NET - Location: London - Start Date: ASAP - Would you like to join one of the fastest growing FinTech firms in Europe? We are looking for an analytical self-starter with experience in Dotnet (.NET) software development. If you are passionate about digital transformation and keen to learn about delivering the market leading Client Lifecycle Managing solution to the Wealth Management industry, apply now! Who are we? * Wealth Dynamix helps to relieve the burden of client management issues for wealth management and private banking firms with innovative technology.
Senior Back End Developer .NET - Fintech Remote - Senior Back End Developer .NET wanted as our team is growing fast! Calling highly motivated, bright candidates who are looking for a career at an exciting award winning FinTech firm! Company: Wealth Dynamix - Role: Senior Back End Developer .NET - Location: London - Start Date: ASAP - Would you like to join one of the fastest growing FinTech firms in Europe? We are looking for an analytical self-starter with experience in Dotnet (.NET) software development. If you are passionate about digital transformation and keen to learn about delivering the market leading Client Lifecycle Managing solution to the Wealth Management industry, apply now! Who are we? * Wealth Dynamix helps to relieve the burden of client management issues for wealth management and private banking firms with innovative technology.
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Experience with API design (e.g. Swagger) and championing well-defined and documented APIs.
Experience with API design (e.g. Swagger) and championing well-defined and documented APIs.
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We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
We are building the first European Investment API that empowers businesses to offer seamless investment experiences to their users. We are looking for a full-time Head of Engineering to help us build a securities API for financial institutions, the first API of that kind in Europe. These teams are responsible for critical domains such as Orders, Trading Partner integrations, Position, and Wealth Management, all of which are essential for Upvests Investment API. The Brokerage Tribe plays a crucial role in the Investment API Platform, overseeing a wide range of user journey aspects. * Assume ownership of business-critical components within the Investment API, influencing its roadmap and delivering strategic impact to establish Upvest as a reliable partner. * Experience
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Mentor AI Application Engineers and other team members, guiding them on backend, API, and AI/ML integration patterns. * Strong knowledge of SaaS integrations and API development (REST, GraphQL).
Mentor AI Application Engineers and other team members, guiding them on backend, API, and AI/ML integration patterns. * Strong knowledge of SaaS integrations and API development (REST, GraphQL).
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Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Were building the first European Investment API to enable any financial institution offering a wide range of efficient and transparent investment products, such as stocks and ETFs in nominal, portfolio, and fractional form. * Continuous learning: The complex yet fascinating field of investments, building an API product on a state-of-the-art tech stack, and working with the most relevant fintechs and financial institutions provide for an incredibly rewarding learning experience.
Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Were building the first European Investment API to enable any financial institution offering a wide range of efficient and transparent investment products, such as stocks and ETFs in nominal, portfolio, and fractional form. * Continuous learning: The complex yet fascinating field of investments, building an API product on a state-of-the-art tech stack, and working with the most relevant fintechs and financial institutions provide for an incredibly rewarding learning experience.
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