Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
2 API jobs in Basingstoke + 20 miles
119 exact matches jobs are outside your preferred location
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Senior Data Engineer
Senior Data Engineer
I3 Resourcing Limited
The City, EC3V 3ND
£70000 - £80000 per annum + + EXCELLENT BONUS + BENEFITS
Extensive experience in AWS services, e.g. EC2, S3, RDS, DynamoDB, Redshift, Lambda, API Gateway
Extensive experience in AWS services, e.g. EC2, S3, RDS, DynamoDB, Redshift, Lambda, API Gateway
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Senior Node.js Developer
Senior Node.js Developer
ARC IT Recruitment Ltd
SW1V, South West London, SW1W 9SJ
Up to £100,000 per annum
Build and implement new API systems integrating with ferry operators, third-party service providers, and more.
Build and implement new API systems integrating with ferry operators, third-party service providers, and more.
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Developer - Remote - FTC
Developer - Remote - FTC
Data Careers
OX5, Kidlington, OX5 1RA
Up to £40000 per annum + excellent pension and other Emp. Bens.
XSLT, API's. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community. * Good API / writing API Integrations, (XSLT, XML etc.)
XSLT, API's. It's a fascinating role developing and enhancing a Police Forces Applications, (as well as the API's so that they integrate with other the Police Force applications), that deliver critical services to the wider community. * Good API / writing API Integrations, (XSLT, XML etc.)
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API gateway
API gateway
PREMIUM
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The Azure DevOps Engineer will design, build, and maintain CI/CD pipelines to support the API backbone and other digital initiatives. * Contribute to the ongoing development of a scalable, resilient digital API infrastructure. * Familiarity with API-driven architectures, microservices, and integration patterns.
The Azure DevOps Engineer will design, build, and maintain CI/CD pipelines to support the API backbone and other digital initiatives. * Contribute to the ongoing development of a scalable, resilient digital API infrastructure. * Familiarity with API-driven architectures, microservices, and integration patterns.
Tester-Salesforce- Azure Integration-Salesforce-Cloud
Tester-Salesforce- Azure Integration-Salesforce-Cloud
InterQuest Group (UK) Limited
London
£400 per day
Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Experience with contract testing frameworks (Pact) and API mocking/stubbing approaches.
Strong hands-on knowledge of Azure integration services (Logic Apps, Azure Functions, Service Bus, API * Experience with REST API testing, Swagger/OpenAPI validation, and API test automation. * Experience with contract testing frameworks (Pact) and API mocking/stubbing approaches.
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Proficiency in JavaScript, Glide API, and ServiceNow development tools.
Proficiency in JavaScript, Glide API, and ServiceNow development tools.
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Azure Security Engineer - Sentinel, Defender, Purview
Azure Security Engineer - Sentinel, Defender, Purview
Apsley Recruitment Ltd
EC2, City of London
From £60,000 to £68,000 per annum Full benefits package
Hands-on with PowerShell and Microsoft Graph API for security automation
Hands-on with PowerShell and Microsoft Graph API for security automation
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Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
PREMIUM
Systems Integration & API Work
Systems Integration & API Work
Implement and maintain API integrations
Implement and maintain API integrations
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AWS Solutions Architect - AI Startup
AWS Solutions Architect - AI Startup
Oscar Associates (UK) Limited
London
£70000 - £75000 per annum + benefits
Join a fast-moving AI startup as our AWS Solutions Architect, where you'll design cloud systems that power cutting-edge AI products. Not just another Architect - forward thinking, we want a creative builder who can scale, secure, and optimise our AWS environment like a pro. * Design and implement AWS architectures for AI workloads * Optimise for speed, scalability, and cost - thinking ahead * Advise on best practices for pipelines, data storage, and APIs * Work side by side with engineering team - devs, data, devops, and CTO to bring big ideas to life * AWS expert with a knack for creative solutions * Loves the startup hustle: agile, fast, hands-on * Infrastrcuture as Code, working in a Devops environment * Confident communicator who can make complex simple - If you want to build the cloud backbone of tomorrow's AI products, get in touch for more info. Keywords -
Join a fast-moving AI startup as our AWS Solutions Architect, where you'll design cloud systems that power cutting-edge AI products. Not just another Architect - forward thinking, we want a creative builder who can scale, secure, and optimise our AWS environment like a pro. * Design and implement AWS architectures for AI workloads * Optimise for speed, scalability, and cost - thinking ahead * Advise on best practices for pipelines, data storage, and APIs * Work side by side with engineering team - devs, data, devops, and CTO to bring big ideas to life * AWS expert with a knack for creative solutions * Loves the startup hustle: agile, fast, hands-on * Infrastrcuture as Code, working in a Devops environment * Confident communicator who can make complex simple - If you want to build the cloud backbone of tomorrow's AI products, get in touch for more info. Keywords -
FEATURED
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Rate - £500 per day Inside IR35 - Duration - 1 month initial - Location - Remote with occasional visits into London - We are looking for an experienced Siebel Developer to join our client's technology team and play a pivotal role in the design, development and migration of Siebel CRM solutions. You will be responsible for enhancing existing systems, delivering robust integrations with external applications and supporting large-scale migration projects as part of digital transformation initiatives. * Design, configure and develop Siebel CRM applications to meet evolving business requirements. * Support migration projects, including data migration, environment upgrades and platform transitions. * Deliver robust integrations between Siebel and third-party systems using Siebel EAI, web services, APIs and middleware.
Rate - £500 per day Inside IR35 - Duration - 1 month initial - Location - Remote with occasional visits into London - We are looking for an experienced Siebel Developer to join our client's technology team and play a pivotal role in the design, development and migration of Siebel CRM solutions. You will be responsible for enhancing existing systems, delivering robust integrations with external applications and supporting large-scale migration projects as part of digital transformation initiatives. * Design, configure and develop Siebel CRM applications to meet evolving business requirements. * Support migration projects, including data migration, environment upgrades and platform transitions. * Deliver robust integrations between Siebel and third-party systems using Siebel EAI, web services, APIs and middleware.
FEATURED
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Senior Software Developer
Senior Software Developer
Lean People Services Limited
Luton, Bedfordshire
From £75,000 to £85,000 per annum
up to £85,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
up to £85,000 per annum - Full Time Mon-Fri - Our Client provide remote diagnostic solutions and services to the automotive industry. They offer cutting-edge, expert diagnostics using both after-market and original equipment manufacturer tools to provide safe and accurate repairs. The company was founded in 2010 and is headquartered in Plano, TX with UK offices in Peterlee and Bedfordshire. As more automotive software technologies emerge, including autonomous driving, advanced diagnostics, vehicle connectivity, digital cockpits the Company aims to gain a first-mover advantage by developing software solutions with the help of automotive software engineers. If the idea of making an impact on a project lifecycle sounds appealing from its inception down to testing and deployment appeals to you, keep on reading!
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Full Stack Engineer, GraphQL APIs, TypeScript, Node
Full Stack Engineer, GraphQL APIs, TypeScript, Node
Staffworx Limited
Brentford End, TW7
market rates, outside IR35, 6 months initial, 2 days week on site
Full Stack Software Engineer GraphQL | TypeScript | Cloud-Native - Based West London, Hybrid working, 1-2 days week on site. Outside IR35. 6 months initial, likely extensions. Were looking for aFull Stack Software Engineerwho loves building high-quality, scalable systems and isn't afraid to get deep into both the code and the infrastructure. If GraphQL APIs, TypeScript/Node.js backends and cloud-native deployments make you feel right at home, this is your stage. What you ll be doing * Design & buildrobust, scalableTypeScript/Node.jsservices andGraphQL APIsthat power real-world applications. * Write code that lastsclean, maintainable, well-tested, and resilient. * Shape our infrastructurethrough modern DevOps practices: CI/CD pipelines (Jenkins, Concourse), containerisation, Helm, and Kubernetes deployments.
Full Stack Software Engineer GraphQL | TypeScript | Cloud-Native - Based West London, Hybrid working, 1-2 days week on site. Outside IR35. 6 months initial, likely extensions. Were looking for aFull Stack Software Engineerwho loves building high-quality, scalable systems and isn't afraid to get deep into both the code and the infrastructure. If GraphQL APIs, TypeScript/Node.js backends and cloud-native deployments make you feel right at home, this is your stage. What you ll be doing * Design & buildrobust, scalableTypeScript/Node.jsservices andGraphQL APIsthat power real-world applications. * Write code that lastsclean, maintainable, well-tested, and resilient. * Shape our infrastructurethrough modern DevOps practices: CI/CD pipelines (Jenkins, Concourse), containerisation, Helm, and Kubernetes deployments.
Senior Penetration Tester
Senior Penetration Tester
4SQUARE RECRUITMENT LTD
Bermondsey, SE1 3RT
From £50,000 to £75,000 per annum
Location:Fully Remote (UK-Based) Salary Range:£50,000 - £75,000 (dependent on experience) Position:Permanent, Full-Time - My client is a dynamic and growing cybersecurity consultancy dedicated to providing top-tier security services to a diverse range of clients. They believe in empowering the team with the flexibility of remote work while tackling challenging and engaging projects that make a real difference to their clients' security posture. The Role - We are seeking a highly skilled and motivated Senior Penetration Tester to join our remote team. You will be responsible for leading and executing complex penetration tests against a variety of systems, networks, and applications. The ideal candidate is not just a proficient tester but a critical thinker who can articulate risks clearly and provide pragmatic remediation advice to clients. Key Responsibilities
Location:Fully Remote (UK-Based) Salary Range:£50,000 - £75,000 (dependent on experience) Position:Permanent, Full-Time - My client is a dynamic and growing cybersecurity consultancy dedicated to providing top-tier security services to a diverse range of clients. They believe in empowering the team with the flexibility of remote work while tackling challenging and engaging projects that make a real difference to their clients' security posture. The Role - We are seeking a highly skilled and motivated Senior Penetration Tester to join our remote team. You will be responsible for leading and executing complex penetration tests against a variety of systems, networks, and applications. The ideal candidate is not just a proficient tester but a critical thinker who can articulate risks clearly and provide pragmatic remediation advice to clients. Key Responsibilities
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London - hybrid - 8 Months+ Inside IR35- Umbrella only * Proficient with React Native and Expo open source modules (bare workflow) * Strong React fundamentals: hooks, context, state management * React Navigation, app routing JavaScript & TypeScript * Advanced JavaScript (ES6+) and TypeScript * Type safety and maintainability for large-scale projects * Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules * Native module integration in Expo * React Native projects * State Management & Storage Redux for complex state management MMKV for high-performance key-value storage * Architecture & APIs System Design * Deep expertise in complex React Native architectures and patterns * Subject matter expert for technical problem-solving and architectural guidance * Designs solutions for the most challenging technical requirements GraphQL Integratio
London - hybrid - 8 Months+ Inside IR35- Umbrella only * Proficient with React Native and Expo open source modules (bare workflow) * Strong React fundamentals: hooks, context, state management * React Navigation, app routing JavaScript & TypeScript * Advanced JavaScript (ES6+) and TypeScript * Type safety and maintainability for large-scale projects * Native Platform Integration Swift (iOS) and Kotlin (Android) for custom native modules * Native module integration in Expo * React Native projects * State Management & Storage Redux for complex state management MMKV for high-performance key-value storage * Architecture & APIs System Design * Deep expertise in complex React Native architectures and patterns * Subject matter expert for technical problem-solving and architectural guidance * Designs solutions for the most challenging technical requirements GraphQL Integratio
NEWPREMIUM
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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.Net Developer
.Net Developer
Deerfoot Recruitment Solutions
SO14, Southampton
£55000 - £65000 per annum + Bonus, 26 days hol, 10% pension
Fantastic opportunity for a .NET Developer to join a leading FTSE-listed wealth management firm and play a key role in a business undergoing significant digital transformation. You'll be working in an agile software engineering team, delivering high-quality, end-to-end solutions. * Design and implement high-quality, end-to-end software products using .NET C#. * Build and maintain RESTful APIs to support modern front-end systems. * Collaborate with cross-functional teams to create testable, scalable, and maintainable software. * Integrate with IAM solutions such as Azure AD B2C, OKTA, or Entra. * Support the integration of front-end frameworks, including React, Next.js, and Ionic. * Work within a CI/CD environment, deploying via Azure DevOps pipelines and tools. What You Bring * Microsoft .NET and .NET Core * Developing scalable RESTful backend services
Fantastic opportunity for a .NET Developer to join a leading FTSE-listed wealth management firm and play a key role in a business undergoing significant digital transformation. You'll be working in an agile software engineering team, delivering high-quality, end-to-end solutions. * Design and implement high-quality, end-to-end software products using .NET C#. * Build and maintain RESTful APIs to support modern front-end systems. * Collaborate with cross-functional teams to create testable, scalable, and maintainable software. * Integrate with IAM solutions such as Azure AD B2C, OKTA, or Entra. * Support the integration of front-end frameworks, including React, Next.js, and Ionic. * Work within a CI/CD environment, deploying via Azure DevOps pipelines and tools. What You Bring * Microsoft .NET and .NET Core * Developing scalable RESTful backend services
NEWFEATURED
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
PREMIUM
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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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Trafalgar Talent is recruiting for a progressive, subscription-based tech company thats enhancing how users interact with web platforms through secure, high-performance solutions. As a Senior React Developer, you'll be pivotal in architecting, building, and optimizing advanced web applications using React and TypeScript. You'll take on complex engineering challenges, influence architectural decisions, and contribute directly to the user experience. * Designing and implementing scalable front-end solutions using React, TypeScript, and modern tooling (e.g. Redux, Webpack, Jest). * Breaking down complex, ambiguous problems into clean, testable components. * Performance tuningboost UI responsiveness, decrease load times, and streamline data management. * Selecting and integrating third-party tools and libraries wisely, balancing trade-offs effectively.
Trafalgar Talent is recruiting for a progressive, subscription-based tech company thats enhancing how users interact with web platforms through secure, high-performance solutions. As a Senior React Developer, you'll be pivotal in architecting, building, and optimizing advanced web applications using React and TypeScript. You'll take on complex engineering challenges, influence architectural decisions, and contribute directly to the user experience. * Designing and implementing scalable front-end solutions using React, TypeScript, and modern tooling (e.g. Redux, Webpack, Jest). * Breaking down complex, ambiguous problems into clean, testable components. * Performance tuningboost UI responsiveness, decrease load times, and streamline data management. * Selecting and integrating third-party tools and libraries wisely, balancing trade-offs effectively.
Mid-Level Mobile Developer (iOS) Brighton, 4 days per week in office, £50,000£70,000 DOE - Mid-Level iOS Developer required by a Brighton based Software House. This is a new role which would be perfect for someone looking to build polished, high-performing mobile apps while working in a collaborative, creative environment. * Designing, building, and maintaining iOS applications in Swift * Creating clean, modern UIs with SwiftUI * Applying SOLID principles to write scalable, maintainable code * Working with RESTful APIs to integrate app functionality * Ensuring apps perform smoothly through memory management, multi-threading, and performance optimisation * Collaborating with cross-functional teams on exciting projects * Nice to have: experience with Android development (Kotlin) Our client offers a vibrant office culture and you will have the opportunity to work on dive
Mid-Level Mobile Developer (iOS) Brighton, 4 days per week in office, £50,000£70,000 DOE - Mid-Level iOS Developer required by a Brighton based Software House. This is a new role which would be perfect for someone looking to build polished, high-performing mobile apps while working in a collaborative, creative environment. * Designing, building, and maintaining iOS applications in Swift * Creating clean, modern UIs with SwiftUI * Applying SOLID principles to write scalable, maintainable code * Working with RESTful APIs to integrate app functionality * Ensuring apps perform smoothly through memory management, multi-threading, and performance optimisation * Collaborating with cross-functional teams on exciting projects * Nice to have: experience with Android development (Kotlin) Our client offers a vibrant office culture and you will have the opportunity to work on dive
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Mid-Level C++ Developer (5+ years of experience) Location:Hybrid - 2-3 days onsite in Hounslow - Rate:£430 per day (Inside IR35) Duration:12 months (Extension highly likely) Are you an experienced C++ Developer looking for your next long-term contract? We are seeking a technically strong and versatileMid-Level C++ Developerto join our client's high-performing team on a travel technology project. Key Responsibilities * Develop and maintain high-performance Back End components using C++11 or newer. * Design dynamic, responsive Front End interfaces with AngularJS/Angular 2+. * Support and enhance existing systems with a focus on performance, stability, and maintainability. * Collaborate with cross-functional teams (Product Owners, QA, DevOps, etc.) to deliver new features. * Refactor Legacy code and actively contribute to reducing technical debt.
Mid-Level C++ Developer (5+ years of experience) Location:Hybrid - 2-3 days onsite in Hounslow - Rate:£430 per day (Inside IR35) Duration:12 months (Extension highly likely) Are you an experienced C++ Developer looking for your next long-term contract? We are seeking a technically strong and versatileMid-Level C++ Developerto join our client's high-performing team on a travel technology project. Key Responsibilities * Develop and maintain high-performance Back End components using C++11 or newer. * Design dynamic, responsive Front End interfaces with AngularJS/Angular 2+. * Support and enhance existing systems with a focus on performance, stability, and maintainability. * Collaborate with cross-functional teams (Product Owners, QA, DevOps, etc.) to deliver new features. * Refactor Legacy code and actively contribute to reducing technical debt.