Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
12 Permanent API jobs in Winchester + 20 miles
225 exact matches jobs are outside your preferred location
)
Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
NEW
)
Head of Engineering (Hands on)- London Hybrid
Head of Engineering (Hands on)- London Hybrid
Develop
London
£90000 - £120000 per annum + + benefits & stocks
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
NEW
)
Strong expertise in API integration, data modelling, ingestion, and activation
Strong expertise in API integration, data modelling, ingestion, and activation
NEW
)
You will have experience working with/developing microservices, containerised applications, TypeScript, React(TypeScript), GraphQL / Hasura, API development and integration, PostgreSQL, JavaScript, GoLang, and Python. * Configure and extend Hasura GraphQL Engine, including permissions, computed fields, and API integrations.
You will have experience working with/developing microservices, containerised applications, TypeScript, React(TypeScript), GraphQL / Hasura, API development and integration, PostgreSQL, JavaScript, GoLang, and Python. * Configure and extend Hasura GraphQL Engine, including permissions, computed fields, and API integrations.
PREMIUM
)
D365 Finance Senior Integration Developer (remote)
D365 Finance Senior Integration Developer (remote)
Hays
London
£500.0 - £550.0 per day + c£510 per day (inside IR35)
We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
We are currently seeking a D365 Senior Integration Developer (finance) to design and implement integrations using D365 API's (e.g. Data Management Package, REST API, OData) You will develop automation processes for data transformation, upload, import and error handling in batch or near real-time modes. Proficiency in tools like Postman, Azure Logic Apps, and scripting (e.g., C#, PowerShell) for API orchestration, along with ETL processes.
NEW
Backend & Data Proficiency: Skilled in Python, Node.js, PostgreSQL, MongoDB, and API security. * Security & Compliance: Strong understanding of GDPR, API authentication, and observability.
Backend & Data Proficiency: Skilled in Python, Node.js, PostgreSQL, MongoDB, and API security. * Security & Compliance: Strong understanding of GDPR, API authentication, and observability.
NEW
)
Solid understanding of backend architecture, distributed systems and API design.
Solid understanding of backend architecture, distributed systems and API design.
NEW
)
Job Title: Solution Architect - Location: Windsor, UK - Work Model: Hybrid (1 day per week in office) Job Type: Contract (Inside IR35) Duration: 6 Months - We are seeking an experienced Solution Architect to join our team in Windsor. You will play a key role in defining, communicating, and implementing strategic technology standards and roadmaps, ensuring robust and scalable solutions for business transformation initiatives. This is a hybrid role requiring one day per week in the office. * Identify, publish, and communicate strategic technology standards, frameworks, principles, and roadmaps to guide technology decisions and leverage efficiency opportunities. * Analyze the impact of implementing new technologies into the IT infrastructure. * Assist Solution Architects, Product Specialists, and Project Managers in matching technology services to specific business servi
Job Title: Solution Architect - Location: Windsor, UK - Work Model: Hybrid (1 day per week in office) Job Type: Contract (Inside IR35) Duration: 6 Months - We are seeking an experienced Solution Architect to join our team in Windsor. You will play a key role in defining, communicating, and implementing strategic technology standards and roadmaps, ensuring robust and scalable solutions for business transformation initiatives. This is a hybrid role requiring one day per week in the office. * Identify, publish, and communicate strategic technology standards, frameworks, principles, and roadmaps to guide technology decisions and leverage efficiency opportunities. * Analyze the impact of implementing new technologies into the IT infrastructure. * Assist Solution Architects, Product Specialists, and Project Managers in matching technology services to specific business servi
NEW
My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
NEW
)
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
NEW
)
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
NEW
Technical Agile Business Analyst/ Product Engineer
Technical Agile Business Analyst/ Product Engineer
Hays
London, EC3A 4BF
£50000.0 - £60000.0 per annum + 50000-60000
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
NEW
)
API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
NEW
)
Contract: Full-Time, Permanent - Location: Maidenhead, Berkshire (Hybrid flexible, 3 days office) Salary: Up to £110,000 per annum - At Dignity and Farewill, we're redefining what end-of-life services can look and feel like - modern, compassionate, accessible. As we combine the scale and experience of Dignity with Farewill's tech-driven innovation, we're building a next-generation platform to support families at one of life's most important moments. We're looking for a Software Engineering Lead to join our growing technology team and help drive this transformation. This is a hands-on technical leadership role, responsible for guiding one of our key product domains - whether that's Funeral Plans, Legal Services, or At-Need Funerals - from strategy through to scalable, secure software delivery. What you'll be doing
Contract: Full-Time, Permanent - Location: Maidenhead, Berkshire (Hybrid flexible, 3 days office) Salary: Up to £110,000 per annum - At Dignity and Farewill, we're redefining what end-of-life services can look and feel like - modern, compassionate, accessible. As we combine the scale and experience of Dignity with Farewill's tech-driven innovation, we're building a next-generation platform to support families at one of life's most important moments. We're looking for a Software Engineering Lead to join our growing technology team and help drive this transformation. This is a hands-on technical leadership role, responsible for guiding one of our key product domains - whether that's Funeral Plans, Legal Services, or At-Need Funerals - from strategy through to scalable, secure software delivery. What you'll be doing
FEATURED
Hawkrose is delighted to announce we are hiring for the role of Senior Software Developer. In this role, the successful candidate will be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals. The successful candidate will be given the autonomy to set their own direction of work, and will work closely with the Head of Development to establish best practice across the Hawkrose development function. The role requires a mixture of home and office working with the expectation that the successful candidate will manage their own time and location to best deliver for our customers. Required Skills - The successful candidate will be a full stack software engineer with experience of enterprise grade software development and an agile development environment.
Hawkrose is delighted to announce we are hiring for the role of Senior Software Developer. In this role, the successful candidate will be responsible for the delivery of exciting projects and products across our Civil Aviation, Defence and Public Sector industry verticals. The successful candidate will be given the autonomy to set their own direction of work, and will work closely with the Head of Development to establish best practice across the Hawkrose development function. The role requires a mixture of home and office working with the expectation that the successful candidate will manage their own time and location to best deliver for our customers. Required Skills - The successful candidate will be a full stack software engineer with experience of enterprise grade software development and an agile development environment.
NEW
)
Day rate: £500 - £700 (inside IR35) Duration: 12 months - Hybrid: 3 days per week - Start: ASAP - My exciting new client is looking for a Full Stack Engineer with AI/ML and Python experience. Hybrid working 3 days per week in the London office. * 10+ years designing and developing operational support systems and automation solutions in Python, 5+ years leading reviews and ensuring quality in others' work. * Hands-on experience with Selenium, and iOS functional automation. * Experience with testing activities across the entire lifecycle of the project from inception to delivery. * Design and implement user interfaces using JavaScript, and frameworks such as React. * Develop and maintain server-side logic using Python. * Manage APIs and integrate third-party services and tools. * Ensure application data integrity and security by designing and managing databases in Postg
Day rate: £500 - £700 (inside IR35) Duration: 12 months - Hybrid: 3 days per week - Start: ASAP - My exciting new client is looking for a Full Stack Engineer with AI/ML and Python experience. Hybrid working 3 days per week in the London office. * 10+ years designing and developing operational support systems and automation solutions in Python, 5+ years leading reviews and ensuring quality in others' work. * Hands-on experience with Selenium, and iOS functional automation. * Experience with testing activities across the entire lifecycle of the project from inception to delivery. * Design and implement user interfaces using JavaScript, and frameworks such as React. * Develop and maintain server-side logic using Python. * Manage APIs and integrate third-party services and tools. * Ensure application data integrity and security by designing and managing databases in Postg
)
Level: Mid-Senior/Senior; Remuneration dependent upon experience - All applications should include a covering letter; references should also be available on request. Who We Are - Ochre is a music retail technology company, helping labels, artists, distributors, and brands to run their ecommerce operations. Growing from our roots in music D2C (direct-to-consumer) retail, we are becoming a leader in providing tailored and scalable ecommerce solutions for the music industry. We work with some of the worlds best labels and artists - including Warp, Oasis, Dirty Hit, Ninja Tune, Partisan Records, Anjuna and many, many more. We are a creative company dedicated to helping our clients succeed in music ecommerce through best-in-class tools and services. As we expand and develop, we want to find new team members who are not only skilled in their field - but also passionate abou
Level: Mid-Senior/Senior; Remuneration dependent upon experience - All applications should include a covering letter; references should also be available on request. Who We Are - Ochre is a music retail technology company, helping labels, artists, distributors, and brands to run their ecommerce operations. Growing from our roots in music D2C (direct-to-consumer) retail, we are becoming a leader in providing tailored and scalable ecommerce solutions for the music industry. We work with some of the worlds best labels and artists - including Warp, Oasis, Dirty Hit, Ninja Tune, Partisan Records, Anjuna and many, many more. We are a creative company dedicated to helping our clients succeed in music ecommerce through best-in-class tools and services. As we expand and develop, we want to find new team members who are not only skilled in their field - but also passionate abou
NEW
Software Engineer (Full Stack Python, AI, LLMs) - London Hybird
Software Engineer (Full Stack Python, AI, LLMs) - London Hybird
Transparent Technology
London, EC1A 4RN
£80000 - £135000 per annum + + bens + shares
Senior Software Engineer (AI Focus) - £80k-£135k + Benefits + Shares | London (Hybrid, 3 Days/Week) We're working with a leading AI consultancy - one of only four global partners of OpenAI - to hire talented Software Engineers (backend or full stack) to join their London team. You don't need to be a productionising AI/LLM expert already, they'll teach that. What matters is strong, hands-on software engineering experience and a passion for building scalable systems. * Build and deploy scalable applications in Python (and ideally JavaScript/TypeScript) * Design and maintain microservices, APIs, and CI/CD pipelines * Work on multiple cloud platforms (AWS, GCP, or Azure) * Collaborate with AI specialists to deliver next-gen solutions * Stay hands-on coding daily (even at senior levels) * Strong software engineering background (backend or full stack)
Senior Software Engineer (AI Focus) - £80k-£135k + Benefits + Shares | London (Hybrid, 3 Days/Week) We're working with a leading AI consultancy - one of only four global partners of OpenAI - to hire talented Software Engineers (backend or full stack) to join their London team. You don't need to be a productionising AI/LLM expert already, they'll teach that. What matters is strong, hands-on software engineering experience and a passion for building scalable systems. * Build and deploy scalable applications in Python (and ideally JavaScript/TypeScript) * Design and maintain microservices, APIs, and CI/CD pipelines * Work on multiple cloud platforms (AWS, GCP, or Azure) * Collaborate with AI specialists to deliver next-gen solutions * Stay hands-on coding daily (even at senior levels) * Strong software engineering background (backend or full stack)
NEW
Job Title: Salesforce Vlocity Developer - Location: Windsor, UK - Work Mode (Mandatory): Hybrid (visit to office once every week) to begin with - Job Purpose and Primary Objectives - Salesforce Vlocity development for a major business unit - Key Responsibilities * Design and develop custom Vlocity solutions on top of the Salesforce platform, including CPQ, CLM, and OmniStudio. * Work with the design and product teams to translate product requirements into technical specifications. * Build and maintain Vlocity data models, including objects, fields, and relationships. * Develop custom Apex classes, triggers, and Visualforce pages to extend the functionality of the Salesforce platform. * Implement Vlocity integration with external systems using REST and SOAP APIs. * Collaborate with other developers and the operations team to ensure the quality of the codebase and the t
Job Title: Salesforce Vlocity Developer - Location: Windsor, UK - Work Mode (Mandatory): Hybrid (visit to office once every week) to begin with - Job Purpose and Primary Objectives - Salesforce Vlocity development for a major business unit - Key Responsibilities * Design and develop custom Vlocity solutions on top of the Salesforce platform, including CPQ, CLM, and OmniStudio. * Work with the design and product teams to translate product requirements into technical specifications. * Build and maintain Vlocity data models, including objects, fields, and relationships. * Develop custom Apex classes, triggers, and Visualforce pages to extend the functionality of the Salesforce platform. * Implement Vlocity integration with external systems using REST and SOAP APIs. * Collaborate with other developers and the operations team to ensure the quality of the codebase and the t
NEW
)
Location: Windsor, UK (Hybrid - 1 day per week in office) Contract: 6 months - Rate: £510 per day - Start Date: 15th September 2025 - About the Role - We are seeking an experienced Salesforce Vlocity Developer to join a major business unit on a contract basis. The successful candidate will be responsible for designing, developing, and implementing tailored Vlocity solutions within the Salesforce platform, with a particular focus on Energy & Utility Cloud. This is a hybrid role requiring one day per week in the Windsor office. Key Responsibilities - Design and develop custom Vlocity solutions including CPQ, CLM, and OmniStudio. - Translate product requirements into high-quality technical specifications. - Build and maintain Vlocity data models (objects, fields, relationships). - Develop custom Apex classes, triggers, and Visualforce pages to extend Salesforce functiona
Location: Windsor, UK (Hybrid - 1 day per week in office) Contract: 6 months - Rate: £510 per day - Start Date: 15th September 2025 - About the Role - We are seeking an experienced Salesforce Vlocity Developer to join a major business unit on a contract basis. The successful candidate will be responsible for designing, developing, and implementing tailored Vlocity solutions within the Salesforce platform, with a particular focus on Energy & Utility Cloud. This is a hybrid role requiring one day per week in the Windsor office. Key Responsibilities - Design and develop custom Vlocity solutions including CPQ, CLM, and OmniStudio. - Translate product requirements into high-quality technical specifications. - Build and maintain Vlocity data models (objects, fields, relationships). - Develop custom Apex classes, triggers, and Visualforce pages to extend Salesforce functiona
NEW
)
London (Office Based) £95,000 - £110,000 + Progression + Training - An excellent opportunity awaits an experienced software engineer with strong Java and Python skills for a hands-on technical leadership position within an innovative ML-driven SaaS firm, in a role offering technical growth, variety and strong development opportunities. The company is a profitable and renowned business delivering a cutting-edge AI-driven platform that helps optimise business processes in heavy industries. In this role, you will take on a hands-on technical leadership position focused on the full stack development and management of the platform. You'll manage solution architecture and APIs, data engineering, and the performance of AWS cloud services. As a technical authority within the team, you will provide technical guidance and mentorship to more junior members of the development tea
London (Office Based) £95,000 - £110,000 + Progression + Training - An excellent opportunity awaits an experienced software engineer with strong Java and Python skills for a hands-on technical leadership position within an innovative ML-driven SaaS firm, in a role offering technical growth, variety and strong development opportunities. The company is a profitable and renowned business delivering a cutting-edge AI-driven platform that helps optimise business processes in heavy industries. In this role, you will take on a hands-on technical leadership position focused on the full stack development and management of the platform. You'll manage solution architecture and APIs, data engineering, and the performance of AWS cloud services. As a technical authority within the team, you will provide technical guidance and mentorship to more junior members of the development tea
NEW
)
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
NEW
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
NEW
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
NEW
Full Stack Python Developer (AI,LLMs) - London (1 day a week)
Full Stack Python Developer (AI,LLMs) - London (1 day a week)
Transparent Technology
London
£35000 - £45000 per annum + bens, future equity
Junior Full Stack Python Developer - AI/LLMs - London (Hybrid, 1 day per week) - Up to £45k - Are you a Junior Full Stack Developer with a passion for Python, AI, and cutting-edge tech? This is your chance to join a brand-new, well-funded eCommerce start-up right at the beginning of its scale-up journey. Backed by recent investment and led by a proven entrepreneur with a track record of building successful businesses, this is a rare opportunity to play a pivotal role in shaping greenfield products that are the first of their kind. You'll work closely with the Founder and another experienced Developer, gaining hands-on experience with AI/LLMs, while building innovative products that will disrupt the market. * Strong foundation in Python * Experience with Node.js and React * Knowledge of cloud platforms (AWS or GCP) * Experience working with REST APIs
Junior Full Stack Python Developer - AI/LLMs - London (Hybrid, 1 day per week) - Up to £45k - Are you a Junior Full Stack Developer with a passion for Python, AI, and cutting-edge tech? This is your chance to join a brand-new, well-funded eCommerce start-up right at the beginning of its scale-up journey. Backed by recent investment and led by a proven entrepreneur with a track record of building successful businesses, this is a rare opportunity to play a pivotal role in shaping greenfield products that are the first of their kind. You'll work closely with the Founder and another experienced Developer, gaining hands-on experience with AI/LLMs, while building innovative products that will disrupt the market. * Strong foundation in Python * Experience with Node.js and React * Knowledge of cloud platforms (AWS or GCP) * Experience working with REST APIs
NEW