151 to 175 of 359 API Design Jobs in England

Proven ability to lead technically by example while remaining hands-on in delivery Strong background in cloud (AWS) and infrastructure as code (Terraform) Solid understanding of SQL and database design Experience with modern frontend stacks and API design Enthusiasm for mentoring, collaboration and delivering software with impact If you’re looking for a role that blends technical More ❯

innovative organisation in the exciting Energy sector. The company is passionate about harnessing technology to drive efficiency and innovation across all of its business. Description Understand business processes and design solutions that improve efficiency, reduce manual effort, and create measurable impact. Build and maintain web applications using ASP.NET (C#) backend and React/Next.js frontend. Connect core systems and … backend and React/Next.js frontend development. Strong understanding of business process improvement and ability to think beyond "just building features". Experience with Azure cloud services. Familiarity with API design, RESTful services, JSON, and data integration patterns. Ability to flex across front-end, middleware, backend, and low/no-code development. Problem-solving mindset: capable of balancing More ❯

AWS) Location: London or Manchester Employment Type: Full-time, Permanent About the Role Were looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. Youll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting high … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

AWS) Location: London or Manchester Employment Type: Full-time, Permanent About the Role Were looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. Youll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting high … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

Location: London or Manchester 💼 Employment Type: Full-time, Permanent About the Role We’re looking for a Senior Software Engineer with deep experience in Python and AWS to help design, build, and scale distributed, data-driven Ad-Tech systems. You’ll lead the delivery of cross-service features within a modern cloud platform, making pragmatic architectural choices and setting … key role in shaping technical direction, mentoring engineers, and ensuring the systems you build are secure, observable, and resilient. Key Responsibilities Lead complex delivery: Drive the end-to-end design and implementation of Python-based microservices and cloud-native solutions hosted on AWS. Architect and optimise systems: Define service boundaries, data ownership, and failure-recovery patterns for scalable, high … and drive continuous improvement. Mentor and grow others: Support engineers through pairing, feedback, and documentation to strengthen technical capability across the team. Contribute to technical roadmap: Collaborate with Product, Design, and Data teams to align on priorities and ensure value is delivered incrementally. Core Tech Stack Languages: Python (FastAPI, Flask, or Django) Cloud: AWS (Lambda, ECS/Fargate, S3 More ❯

such as Git. Strong problem-solving skills and a detail-oriented mindset. Ability to work independently and as part of a team. Excellent communication skills. Desirable: Experience with RESTful API design and development. Knowledge of cloud platforms like AWS or Azure. Familiarity with Agile/Scrum methodologies. Experience with DevOps tools and practices. Benefits: Excellent opportunities for development More ❯

level - DV level would be a preference. 2+ years experience in backend or full-stack software development Strong skills in Python, with exposure to JavaScript/TypeScript Experience with API design, microservices, and cloud deployments Solid understanding of software engineering best practices A passion for clean, maintainable code and performance Experience working in high-growth, product-driven teams More ❯

level - DV level would be a preference. 2+ years experience in backend or full-stack software development Strong skills in Python, with exposure to JavaScript/TypeScript Experience with API design, microservices, and cloud deployments Solid understanding of software engineering best practices A passion for clean, maintainable code and performance Experience working in high-growth, product-driven teams More ❯

level - DV level would be a preference. 2+ years experience in backend or full-stack software development Strong skills in Python, with exposure to JavaScript/TypeScript Experience with API design, microservices, and cloud deployments Solid understanding of software engineering best practices A passion for clean, maintainable code and performance Experience working in high-growth, product-driven teams More ❯

level - DV level would be a preference. 2+ years experience in backend or full-stack software development Strong skills in Python, with exposure to JavaScript/TypeScript Experience with API design, microservices, and cloud deployments Solid understanding of software engineering best practices A passion for clean, maintainable code and performance Experience working in high-growth, product-driven teams More ❯

level - DV level would be a preference. 2+ years experience in backend or full-stack software development Strong skills in Python, with exposure to JavaScript/TypeScript Experience with API design, microservices, and cloud deployments Solid understanding of software engineering best practices A passion for clean, maintainable code and performance Experience working in high-growth, product-driven teams More ❯

to help lead the next phase of growth. The Role We’re looking for an experienced Full Stack Engineer to take ownership of full lifecycle development — from architecture and design through to deployment and optimisation. You’ll be working across both the front and back end, collaborating with a multi-disciplinary team to build products that directly impact the … This is a hands-on, high-impact role with real autonomy and room to grow. Key Responsibilities Build and Own Develop scalable web applications using React, Next.js, and Node.js Design and maintain secure, high-performance RESTful APIs Lead architectural decisions across the full stack Own features end-to-end, from planning through to production Collaborate Work closely with UI … current with industry trends and recommend new technologies What We’re Looking For Strong commercial experience with React, Next.js, Node.js, and JavaScript Solid understanding of back-end development and API design Experience working with cloud platforms (preferably AWS) Familiarity with both SQL and NoSQL databases (e.g. PostgreSQL, MongoDB) Understanding of Git, CI/CD pipelines, and secure coding More ❯

to help lead the next phase of growth. The Role We’re looking for an experienced Full Stack Engineer to take ownership of full lifecycle development — from architecture and design through to deployment and optimisation. You’ll be working across both the front and back end, collaborating with a multi-disciplinary team to build products that directly impact the … This is a hands-on, high-impact role with real autonomy and room to grow. Key Responsibilities Build and Own Develop scalable web applications using React, Next.js, and Node.js Design and maintain secure, high-performance RESTful APIs Lead architectural decisions across the full stack Own features end-to-end, from planning through to production Collaborate Work closely with UI … current with industry trends and recommend new technologies What We’re Looking For Strong commercial experience with React, Next.js, Node.js, and JavaScript Solid understanding of back-end development and API design Experience working with cloud platforms (preferably AWS) Familiarity with both SQL and NoSQL databases (e.g. PostgreSQL, MongoDB) Understanding of Git, CI/CD pipelines, and secure coding More ❯

to help lead the next phase of growth. The Role We’re looking for an experienced Full Stack Engineer to take ownership of full lifecycle development — from architecture and design through to deployment and optimisation. You’ll be working across both the front and back end, collaborating with a multi-disciplinary team to build products that directly impact the … This is a hands-on, high-impact role with real autonomy and room to grow. Key Responsibilities Build and Own Develop scalable web applications using React, Next.js, and Node.js Design and maintain secure, high-performance RESTful APIs Lead architectural decisions across the full stack Own features end-to-end, from planning through to production Collaborate Work closely with UI … current with industry trends and recommend new technologies What We’re Looking For Strong commercial experience with React, Next.js, Node.js, and JavaScript Solid understanding of back-end development and API design Experience working with cloud platforms (preferably AWS) Familiarity with both SQL and NoSQL databases (e.g. PostgreSQL, MongoDB) Understanding of Git, CI/CD pipelines, and secure coding More ❯

Senior Backend or Full Stack Developer (Contract, AI-Driven Environment) I'm looking for an experienced full stack or backend-focused senior developer to support API development and backend delivery for a high-traffic consumer platform. You’ll work alongside front-end engineers to build scalable, secure, and performant systems using modern tools and AI-assisted development. You’ll … architectural standards and established development patterns Understand backend performance, scalability, and security at production scale Build reliable, maintainable APIs and data systems Collaborate effectively with front-end developers to design and implement seamless integrations Apply caching and optimization techniques for high-traffic environments We’re not looking for: Developers needing extensive supervision or mentoring Anyone without production experience in … consumer-facing systems Core Technical Requirements: Node.js (extensive production experience) RESTful API design and development (production experience) Database design and optimization (SQL and/or NoSQL) Authentication, authorization, and security best practices AI coding tools (GitHub Copilot, Claude, Cursor, or similar) Nice to Have: React JS/Next.js (for full stack capability) Payload CMS Azure Microservices architecture More ❯

Senior Backend or Full Stack Developer (Contract, AI-Driven Environment) I'm looking for an experienced full stack or backend-focused senior developer to support API development and backend delivery for a high-traffic consumer platform. You’ll work alongside front-end engineers to build scalable, secure, and performant systems using modern tools and AI-assisted development. You’ll … architectural standards and established development patterns Understand backend performance, scalability, and security at production scale Build reliable, maintainable APIs and data systems Collaborate effectively with front-end developers to design and implement seamless integrations Apply caching and optimization techniques for high-traffic environments We’re not looking for: Developers needing extensive supervision or mentoring Anyone without production experience in … consumer-facing systems Core Technical Requirements: Node.js (extensive production experience) RESTful API design and development (production experience) Database design and optimization (SQL and/or NoSQL) Authentication, authorization, and security best practices AI coding tools (GitHub Copilot, Claude, Cursor, or similar) Nice to Have: React JS/Next.js (for full stack capability) Payload CMS Azure Microservices architecture More ❯

Senior Backend or Full Stack Developer (Contract, AI-Driven Environment) I'm looking for an experienced full stack or backend-focused senior developer to support API development and backend delivery for a high-traffic consumer platform. You’ll work alongside front-end engineers to build scalable, secure, and performant systems using modern tools and AI-assisted development. You’ll … architectural standards and established development patterns Understand backend performance, scalability, and security at production scale Build reliable, maintainable APIs and data systems Collaborate effectively with front-end developers to design and implement seamless integrations Apply caching and optimization techniques for high-traffic environments We’re not looking for: Developers needing extensive supervision or mentoring Anyone without production experience in … consumer-facing systems Core Technical Requirements: Node.js (extensive production experience) RESTful API design and development (production experience) Database design and optimization (SQL and/or NoSQL) Authentication, authorization, and security best practices AI coding tools (GitHub Copilot, Claude, Cursor, or similar) Nice to Have: React JS/Next.js (for full stack capability) Payload CMS Azure Microservices architecture More ❯

Senior Backend or Full Stack Developer (Contract, AI-Driven Environment) I'm looking for an experienced full stack or backend-focused senior developer to support API development and backend delivery for a high-traffic consumer platform. You’ll work alongside front-end engineers to build scalable, secure, and performant systems using modern tools and AI-assisted development. You’ll … architectural standards and established development patterns Understand backend performance, scalability, and security at production scale Build reliable, maintainable APIs and data systems Collaborate effectively with front-end developers to design and implement seamless integrations Apply caching and optimization techniques for high-traffic environments We’re not looking for: Developers needing extensive supervision or mentoring Anyone without production experience in … consumer-facing systems Core Technical Requirements: Node.js (extensive production experience) RESTful API design and development (production experience) Database design and optimization (SQL and/or NoSQL) Authentication, authorization, and security best practices AI coding tools (GitHub Copilot, Claude, Cursor, or similar) Nice to Have: React JS/Next.js (for full stack capability) Payload CMS Azure Microservices architecture More ❯

SaaS platforms. You’ll help shape architecture, deliver new features end-to-end, and contribute to technical strategy in a lean, high-calibre engineering team. What You’ll Do Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets) Balance speed … in Node.js and React ; strong TypeScript skills Solid understanding of modern DevOps (Docker, AWS, CI/CD, Kubernetes a plus) Pragmatic engineer who values collaboration, clean code, and thoughtful design Join a team where product excellence, autonomy, and technical craftsmanship drive everything. More ❯

SaaS platforms. You’ll help shape architecture, deliver new features end-to-end, and contribute to technical strategy in a lean, high-calibre engineering team. What You’ll Do Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets) Balance speed … in Node.js and React ; strong TypeScript skills Solid understanding of modern DevOps (Docker, AWS, CI/CD, Kubernetes a plus) Pragmatic engineer who values collaboration, clean code, and thoughtful design Join a team where product excellence, autonomy, and technical craftsmanship drive everything. More ❯

SaaS platforms. You’ll help shape architecture, deliver new features end-to-end, and contribute to technical strategy in a lean, high-calibre engineering team. What You’ll Do Design and build scalable backend and fullstack solutions in Node.js, TypeScript, React, AWS Collaborate closely on architecture, data models, and API design (REST, GraphQL, tRPC, WebSockets) Balance speed … in Node.js and React ; strong TypeScript skills Solid understanding of modern DevOps (Docker, AWS, CI/CD, Kubernetes a plus) Pragmatic engineer who values collaboration, clean code, and thoughtful design Join a team where product excellence, autonomy, and technical craftsmanship drive everything. More ❯