51 to 75 of 123 API Design Jobs in England

working with an exciting organisation that is looking to appoint a Senior Full Stack Developer to help design and deliver secure, cloud-native applications within a modern Microsoft and Azure ecosystem. This is an excellent opportunity for an experienced full-stack engineer who thrives in structured architectural environments … maintaining unit and frontend tests (NUnit and ViTest) Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Ensuring all development aligns with OWASP security best practices Tech Stack & Environment Core technologies: .NET 10/ASP.NET Core Angular 21 (mandatory) DevExpress ...

stage (ambiguous) environments. You've seen products through from v1 to scale, and you love designing clean systems that last. Your mission is to Design, develop, test, deploy, maintain, and enhance practical AI-powered software solutions for the fintech industry. Own project timelines by managing priorities and delivering high … cloud platforms (AWS/GCP) Strong experience with designing, building and scaling distributed systems Strong background in relational + non-relational databases (PostgreSQL, Redis) API design chops (REST, GraphQL), deployment know-how Bonus Points If You Have built complex workflow orchestration systems Know your way around cloud infra ...

stage (ambiguous) environments. You've seen products through from v1 to scale, and you love designing clean systems that last. Your mission is to Design, develop, test, deploy, maintain, and enhance practical AI-powered software solutions for the fintech industry. Own project timelines by managing priorities and delivering high … cloud platforms (AWS/GCP) Strong experience with designing, building and scaling distributed systems Strong background in relational + non-relational databases (PostgreSQL, Redis) API design chops (REST, GraphQL), deployment know-how Bonus Points If You Have built complex workflow orchestration systems Know your way around cloud infra ...

stage (ambiguous) environments. You've seen products through from v1 to scale, and you love designing clean systems that last. Your mission is to Design, develop, test, deploy, maintain, and enhance practical AI-powered software solutions for the fintech industry. Own project timelines by managing priorities and delivering high … cloud platforms (AWS/GCP) Strong experience with designing, building and scaling distributed systems Strong background in relational + non-relational databases (PostgreSQL, Redis) API design chops (REST, GraphQL), deployment know-how Bonus Points If You Have built complex workflow orchestration systems Know your way around cloud infra ...

stage (ambiguous) environments. You've seen products through from v1 to scale, and you love designing clean systems that last. Your mission is to Design, develop, test, deploy, maintain, and enhance practical AI-powered software solutions for the fintech industry. Own project timelines by managing priorities and delivering high … cloud platforms (AWS/GCP) Strong experience with designing, building and scaling distributed systems Strong background in relational + non-relational databases (PostgreSQL, Redis) API design chops (REST, GraphQL), deployment know-how Bonus Points If You Have built complex workflow orchestration systems Know your way around cloud infra ...

courier companies, retailers, and anyone who receives a delivery! If you're an experienced Backend Staff Software Engineer who enjoys working closely with product, design, and engineering - and you like tackling complex backend architecture challenges - we think you'll be right at home here. Work/life at Spoke … issues are easier to spot and quicker to resolve. You'll take the lead across multiple backend components, whether that's shaping system design, digging into complex production behaviour, or driving longer-term improvements to workflows, deployments, and platform performance. As the stack evolves, you'll be part ...

courier companies, retailers, and anyone who receives a delivery! If you're an experienced Backend Staff Software Engineer who enjoys working closely with product, design, and engineering - and you like tackling complex backend architecture challenges - we think you'll be right at home here. Work/life at Spoke … issues are easier to spot and quicker to resolve. You'll take the lead across multiple backend components, whether that's shaping system design, digging into complex production behaviour, or driving longer-term improvements to workflows, deployments, and platform performance. As the stack evolves, you'll be part ...

courier companies, retailers, and anyone who receives a delivery! If you're an experienced Backend Staff Software Engineer who enjoys working closely with product, design, and engineering - and you like tackling complex backend architecture challenges - we think you'll be right at home here. Work/life at Spoke … issues are easier to spot and quicker to resolve. You'll take the lead across multiple backend components, whether that's shaping system design, digging into complex production behaviour, or driving longer-term improvements to workflows, deployments, and platform performance. As the stack evolves, you'll be part ...

courier companies, retailers, and anyone who receives a delivery! If you're an experienced Backend Staff Software Engineer who enjoys working closely with product, design, and engineering - and you like tackling complex backend architecture challenges - we think you'll be right at home here. Work/life at Spoke … issues are easier to spot and quicker to resolve. You'll take the lead across multiple backend components, whether that's shaping system design, digging into complex production behaviour, or driving longer-term improvements to workflows, deployments, and platform performance. As the stack evolves, you'll be part ...

courier companies, retailers, and anyone who receives a delivery! If you're an experienced Backend Staff Software Engineer who enjoys working closely with product, design, and engineering - and you like tackling complex backend architecture challenges - we think you'll be right at home here. Work/life at Spoke … issues are easier to spot and quicker to resolve. You'll take the lead across multiple backend components, whether that's shaping system design, digging into complex production behaviour, or driving longer-term improvements to workflows, deployments, and platform performance. As the stack evolves, you'll be part ...

manual test strategies Documenting architectural decisions (ADRs) and maintaining clear technical communication Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (offline-first mobile design) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights … They're Looking For 7+ years' commercial software development experience At least 2 years in a leadership position Strong expertise in modern .NET and API design Proven Angular experience (v15+) Hands-on Azure architecture and deployment experience Strong understanding of CI/CD and enterprise DevOps practices Experience ...

make a difference You'll take technical ownership of customer-facing solutions, working across React/TypeScript and .NET/C# to design, build, test and run reliable, secure and scalable services. You'll lead complex technical delivery, champion modern engineering practices and help shape high-quality solutions through … testing. CI/CD craftsmanship (Azure DevOps/GitHub Actions or similar) with quality gates and environment parity. Proven record designing scalable, resilient systems; API design/versioning; clean architecture and DDD experience. Track record mentoring engineers and leading code/design reviews; uplifting test automation ...

lead a team of elite engineers who embed directly with Fortune 500 customers to ship deeply integrated AI agents—owning everything from agent design and evaluation to the backend services, data systems, and cloud infrastructure that make them production-ready. You'll partner closely with our Forward Deployed … volume for senior engineering roles. Hands‐on fluency with the full AI stack. Deep familiarity with LLMs and agent systems, evaluation frameworks, backend and API design (Python or TypeScript), data systems (PostgreSQL, DynamoDB, MongoDB, or similar), and cloud infrastructure (AWS, Azure, or GCP) including Kubernetes, Docker ...

Tech Lead, Senior Software Engineer or Software Architect who enjoys solving complex technical problems and building modern, scalable software. Role & Responsibilities Lead the technical design and evolution of a large-scale business-critical platform. Improve the existing architecture and define a pragmatic roadmap towards a modern, scalable solution. Design … powered capabilities into the product to improve functionality and user experience. Drive the adoption of AI-assisted software development tools and engineering best practices. Design integrations with enterprise platforms, APIs and wider business systems. Work closely with Product, Architecture and Engineering teams to deliver incremental improvements. Mentor developers ...

platform teams. Strong knowledge of Spring Framework/Spring Boot. Hands-on experience with AWS for deployment, configuration and monitoring. Comfortable with RESTful API design and development. Solid understanding of software engineering principles and agile methodologies. Senior Java Developer | Java, Spring, AWS | Salary up to £75k | Remote ...

platform teams. Strong knowledge of Spring Framework/Spring Boot. Hands-on experience with AWS for deployment, configuration and monitoring. Comfortable with RESTful API design and development. Solid understanding of software engineering principles and agile methodologies. Senior Java Developer | Java, Spring, AWS | Salary up to £75k | Remote ...

platform teams. Strong knowledge of Spring Framework/Spring Boot. Hands-on experience with AWS for deployment, configuration and monitoring. Comfortable with RESTful API design and development. Solid understanding of software engineering principles and agile methodologies. Senior Java Developer | Java, Spring, AWS | Salary up to £75k | Remote ...

platform teams. Strong knowledge of Spring Framework/Spring Boot. Hands-on experience with AWS for deployment, configuration and monitoring. Comfortable with RESTful API design and development. Solid understanding of software engineering principles and agile methodologies. Senior Java Developer | Java, Spring, AWS | Salary up to £75k | Remote ...

Chicago). The role offers the opportunity to contribute to business-critical systems while working in a collaborative and supportive environment. Key Responsibilities Design, develop, enhance, and maintain enterprise applications using C# and .NET technologies. Support and improve existing business-critical systems, ensuring stability, performance, and scalability. Work closely … with business users, analysts, and technical teams to gather requirements and deliver solutions. Participate in the full software development lifecycle, including design, development, testing, deployment, and support. Collaborate with globally distributed development teams across multiple locations and time zones. Contribute to technical discussions, solution design, code reviews ...

Chicago). The role offers the opportunity to contribute to business-critical systems while working in a collaborative and supportive environment. Key Responsibilities Design, develop, enhance, and maintain enterprise applications using C# and .NET technologies. Support and improve existing business-critical systems, ensuring stability, performance, and scalability. Work closely … with business users, analysts, and technical teams to gather requirements and deliver solutions. Participate in the full software development lifecycle, including design, development, testing, deployment, and support. Collaborate with globally distributed development teams across multiple locations and time zones. Contribute to technical discussions, solution design, code reviews ...

brand-new platform and influence technical strategyWork within a senior, AI-first engineering environmentKEY POINTSSenior technical leadership role with significant architectural ownershipLeading the design and development of a modern platform rebuildStrong focus on Node.js, TypeScript, React and cloud technologiesOpportunity to shape engineering standards, architecture and AI adoptionABOUT THE CLIENTWe … leadership role where you'll help shape the future of a modern, large-scale platform whilst remaining hands-on with development.You'll lead the design and delivery of scalable backend services, APIs, integrations and data flows, whilst providing architectural guidance across the wider engineering team. Although the role ...

work from home 1 day a week if desired. The salary on offer is £50,000-£62,000 DOE plus good benefits. Key Responsibilities Design, develop, and maintain scalable web applications using modern frameworks and technologies. Integrate Twilio APIs for voice, messaging, and video communication features. Collaborate with product … Twilio APIs (voice, SMS, video) and related integrations. Proven ability to build and work with real-time, event-driven systems. Solid grasp of RESTful API design and microservice architecture. Hands-on experience with AWS serverless technologies including DynamoDB, Lambda, and API Gateway. Familiarity with CI/ ...

agile scrum team, reporting into a Technical Lead. This team's primary goal is to be a source of good practice for customer facing API design and implementation at VoCoVo, in partnership with our architects. This is both for APIs available as part of our cloud based management … Node.js/TypeScript, including unit and integration testing. Full-stack engineering experience, using modern frontend frameworks and libraries such as React. Exposure to the design, build and integration of HTTP-based APIs. Excellent communication skills, with the ability to clearly explain complex technical concepts both verbally and in writing. ...

client data will be sourced, validated, and integrated into Mondra, leveraging where possible our existing Import and Export APIs and identifying where custom API development may be required for fulfil Mondra’s data requirements. You will also contribute to the client contracting process, ensuring technical commitments are clearly defined … including mapping data sources, transformation logic, and validation processes. Identify the client’s BI requirements, and define data export strategies (preferably via existing Mondra API). Identify the authentication/authorisation capabilities of the client, and promote the integration with Mondra’s Identity Provider via Single Sign On. Leverage ...

factory" mentality and build a team that takes true ownership of the product. Be the technical authority. You'll own the technical architecture and design decisions for our dashboard, docs platform, marketing website, and billing UI. You will ensure these applications effectively demonstrate Ably's realtime capabilities. Thrive … turn engineers into product-minded leaders. We'd love to talk if you have Extensive experience leading technical teams in technical B2B SaaS or API-first products, with a track record of product-minded engineering teams that take initiative and ownership of product outcomes. A strong software engineering background ...