51 to 75 of 175 API Design Jobs in England

ability to read, review, and contribute to Dockerfiles and GitHub Actions workflows as a developer who understands the delivery pipeline their code passes through. API Mastery : Deep expertise in RESTful API design, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email delivery using SendGrid. Testing ...

Looking For: SeniorStaff-level backend engineer with deep, current expertise in C# and .NET Core 8/9 , capable of architecting and leading the design of distributed REST API microservices at scale. Authority in AWS serverless architecture; Lambda-first, with strong working knowledge of API Gateway … agent orchestration, context management, custom commands/skills and scaling AI-assisted delivery across a team. Expertise across Aurora RDS MySQL and DynamoDB; schema design, access patterns, indexing, query tuning, single-table vs multi-table trade-offs, and pragmatic thinking around consistency, scaling and cost. Proven experience designing event ...

Engineer to help us scale our data and analytics capabilities across the UK and international markets. In this role, you will contribute to the design, development and maintenance of the data pipelines, platforms and services that power Cervus’ analytics. Working closely with experienced engineers, analysts, and delivery teams … defence. You will also be encouraged to leverage modern AI tools to accelerate high quality, sustainable development. As a Full Stack Engineer, you will: • Design, develop, automatically test and maintain full-stack web applications with a focus on data pipelines, analytics dashboards, and reporting tools. • Build scalable RESTful APIs ...

code quality, and conduct structured code reviews across the delivery team. Work directly with the BA to translate business requirements into sound technical design and produce low-level design documentation. Make architecture decisions, present options clearly to non-technical stakeholders, and govern integration standards across the programme. Support … roles, with strong hands-on .NET/C# delivery. Demonstrable experience leading architecture decisions on production-grade systems, not just contributing to them. REST API design and integration experience at scale, including defining and governing integration standards. Microsoft SQL Server: schema design, query optimisation, and working knowledge ...

code quality, and conduct structured code reviews across the delivery team. Work directly with the BA to translate business requirements into sound technical design and produce low-level design documentation. Make architecture decisions, present options clearly to non-technical stakeholders, and govern integration standards across the programme. Support … roles, with strong hands-on .NET/C# delivery. Demonstrable experience leading architecture decisions on production-grade systems, not just contributing to them. REST API design and integration experience at scale, including defining and governing integration standards. Microsoft SQL Server: schema design, query optimisation, and working knowledge ...

engineers and help elevate the overall technical capability of the team. What youll be doing Youll be working across the full stack, leading the design and delivery of new features while ensuring performance, scalability, and reliability. The role requires someone who can take high-level requirements and translate them … development, paired with strong backend experience in Java and the Spring Boot ecosystem (including Data, Security, and MVC). A solid understanding of RESTful API design, SQL/database design, CI/CD pipelines, and AWS is essential. What were looking for Were looking for someone with ...

help elevate the overall technical capability of the team. What you’ll be doing You’ll be working across the full stack, leading the design and delivery of new features while ensuring performance, scalability, and reliability. The role requires someone who can take high-level requirements and translate them … development, paired with strong backend experience in Java and the Spring Boot ecosystem (including Data, Security, and MVC). A solid understanding of RESTful API design, SQL/database design, CI/CD pipelines, and AWS is essential. What we’re looking for We’re looking ...

token management Virtualisation & Containerisation Docker, Podman Kubernetes GPU containerisation (e.g. NVIDIA Container Toolkit, Run:AI) Architectural Approaches Microservices and serverless architectures Edge computing API design (REST, gRPC/Protobuf) Event-driven systems (Kafka, MQTT) DevSecOps Tooling Version control (Git) CI/CD pipelines (e.g. GitLab CI/ ...

Looking For: SeniorStaff-level backend engineer with deep, current expertise in C# and .NET Core 8/9 , capable of architecting and leading the design of distributed REST API microservices at scale. Authority in AWS serverless architecture; Lambda-first, with strong working knowledge of API Gateway … agent orchestration, context management, custom commands/skills and scaling AI-assisted delivery across a team. Expertise across Aurora RDS MySQL and DynamoDB; schema design, access patterns, indexing, query tuning, single-table vs multi-table trade-offs, and pragmatic thinking around consistency, scaling and cost. Proven experience designing event ...

offered as a remote full-time contract with potential for extension depending on performance and project needs. Project Overview You will contribute to the design and development of a scalable CRM platform used to: Manage customer lifecycle and engagement Store and process customer and organisation data Automate workflows … Support internal operational tools for teams The platform is built using modern TypeScript-based full-stack technologies , microservices architecture, and cloud infrastructure. Key Responsibilities Design, develop, and maintain CRM platform features across the full stack Build scalable backend services using Node.js and TypeScript Develop modern user interfaces using React ...

real customers and users across the world. What You’ll Do Own our engineering stack from MVP to scale — backend, frontend, infra . Design architecture, choose tools, and set engineering standards. Work directly with early users to iterate quickly. Collaborate with the founding team on strategy, hiring, and scaling … high-quality, user-focused features (that change Oceans and planet) fast. What We’re Looking For 5+ years of backend expertise in Go including API design, microservices architecture, gRPC/REST services, and database design (PostgreSQL, Redis). Frontend proficiency with React/Next.js, responsive design ...

could be the role for you! What You'll Have the Opportunity to Do: • Develop and execute AWS workloads using cutting-edge cloud patterns • Design expandable application solutions in sync with best practice for performance, resilience and cost • Set up and manage CI/CD pipelines and apply cloud … security principles • Work alongside different clients and multi-functional teams to deliver solutions • Produce premium design documentation • Build and tune system architectures to ensure reliable, scalable and maintainable solutions About The Candidate The right candidate for the role of AWS Architect will have/gain the following experience: • Appropriate ...

have hands-on experience building monitoring solutions, CI/CD pipelines, and cloud infrastructure, along with the ability to communicate effectively across requirements, design, development, and testing. You’ll primarily contribute to DSE’s IoT platform (DSE WebNet), alongside developing supporting tools and business systems. Our products operate … systems, and cloud-native practices. Key Responsibilities: Capture software and infrastructure requirements from project inception Ensure platform reliability, security, safety, and compliance standards Design and maintain monitoring, alerting, and dashboards (Grafana, OpenTelemetry) Own SLOs, SLIs, and error budgets for the DSE WebNet IoT platform Provision and manage cloud infrastructure ...

have hands-on experience building monitoring solutions, CI/CD pipelines, and cloud infrastructure, along with the ability to communicate effectively across requirements, design, development, and testing. You’ll primarily contribute to DSE’s IoT platform (DSE WebNet), alongside developing supporting tools and business systems. Our products operate … systems, and cloud-native practices. Key Responsibilities: Capture software and infrastructure requirements from project inception Ensure platform reliability, security, safety, and compliance standards Design and maintain monitoring, alerting, and dashboards (Grafana, OpenTelemetry) Own SLOs, SLIs, and error budgets for the DSE WebNet IoT platform Provision and manage cloud infrastructure ...

have hands-on experience building monitoring solutions, CI/CD pipelines, and cloud infrastructure, along with the ability to communicate effectively across requirements, design, development, and testing. You’ll primarily contribute to DSE’s IoT platform (DSE WebNet), alongside developing supporting tools and business systems. Our products operate … systems, and cloud-native practices. Key Responsibilities: Capture software and infrastructure requirements from project inception Ensure platform reliability, security, safety, and compliance standards Design and maintain monitoring, alerting, and dashboards (Grafana, OpenTelemetry) Own SLOs, SLIs, and error budgets for the DSE WebNet IoT platform Provision and manage cloud infrastructure ...

afraid to jump into unfamiliar territory Experience with cloud platforms, ideally Azure (Functions, Storage, SQL, identity) Highly proficient in Python Familiarity with Django Preferably API dev experience (eg FastAPI) Familiarity with C# (ideally both, but strong in one with willingness to learn the other works) Snowflake experience Experience with … care about how your code gets built, tested, deployed, and monitored, not just how it runs on your machine Good knowledge around data modelling, API design, and system boundaries Strong knowledge of financial data Familiarity with ESG, or sustainability reporting frameworks Clear communication — we're a small team ...

with an award-winning digital product studio known for building beautifully crafted, human-centred digital products for global clients. With a strong reputation across design, product and engineering, they deliver impactful work across the full product lifecycle — from early discovery through to large-scale builds. They’re now looking … Role This is a hands-on technical leadership position , combining full-stack development with ownership of technical direction across projects. You’ll: Lead the design, development and delivery of scalable digital products (frontend, backend & infrastructure) Drive technical direction , ensuring solutions are robust, secure and performant Stay close ...

with an award-winning digital product studio known for building beautifully crafted, human centred digital products for global clients. With a strong reputation across design, product and engineering, they deliver impactful work across the full product lifecycle — from early discovery through to large-scale builds. They’re now looking … Role This is a hands-on technical leadership position, combining full-stack development with ownership of technical direction across projects. You’ll: Lead the design, development and delivery of scalable digital products (frontend, backend & infrastructure) Drive technical direction, ensuring solutions are robust, secure and performant Stay close ...

exciting opportunity to work on challenging projects, influence architecture decisions, and help shape the future of our software solutions. What Youll Do Design, develop, and maintain high-quality C# applications across our platform Work on AI-enabled solutions and integrate machine learning capabilities where relevant Ensure applications are secure … design and adhere to best practices in cybersecurity Collaborate with cross-functional teams including product, QA, and DevOps Participate in code reviews, mentoring junior developers, and promoting best practices Solve complex technical problems and contribute to the overall architecture strategy What Were Looking For Essential: Strong experience with C# ...

build. The team is small, collaborative, and deliberately high calibre. Engineers are trusted to take ownership, contribute to product direction, and work closely with design and commercial teams to shape what gets built. What you will be doing Building end to end features across backend and frontend, from API … design through to UI Working closely with product and design to turn ideas into well thought through functionality Improving performance, usability, and reliability of a live product used by real customers Contributing to technical decisions as the platform evolves and scales Owning meaningful parts of the product rather ...

with strong LLM experience ( Claude preferred). Key Responsibilities: Develop and maintain backend services using Java, with a strong focus on server-side engineering Design and implement scalable, secure, and high-performance APIs Lead backend development initiatives and enforce best coding practices Contribute to the React frontend, ensuring seamless … code reviews, architecture discussions, and performance optimization Requirements : Strong backend development experience with Java (preferably Spring Boot) Deep expertise in server-side architecture and API design/development Proficiency in React for frontend development Hands-on experience with LLM/AI tools (e.g., Claude or similar) and integrating ...

people actually love to use? We are representing a globally recognized digital product studio that sits at the sweet spot of high-end aesthetic design and hardcore engineering. They're looking for a Lead Full-stack Engineer to join the growing function. This isn't a "ticket-taking" role. … robust, scalable backend. What You Bring to the Table React Node/TypeScript/JavaScript Cloud: AWS, Azure, or GCP. APIs: API design and integration (REST & GraphQL). Technical Leadership: ability to lead project end-to-end AI Tooling: Confident using AI-boosted environments to ensure quality (Claude ...

fast-growing, award-winning software company that delivers end-to-end cloud solutions for practices and businesses. They are looking for an API Engineer to join the team, where you'll be building API infrastructure that enables their product, third party integrations, their users and AI services … interact with their established product portfolio. Key Responsibilities: Design and implement RESTful APIs that expose product capabilities to AI services and third-party integrations Build production-grade APIs using C# .NET, SQL, and Azure services Implement authentication and authorization using OAuth and modern security patterns Write clean, maintainable, well ...

systems that are safer, smarter, and dramatically more environmentally responsible. Location: London or Porto The Role We’re seeking a Senior Software Engineer to design, build, and maintain backend containerised services that power our scalable edge‐compute platforms. You’ll work closely with a Software Team Lead and collaborate … leadership while remaining hands‐on with complex systems. What You’ll Do Build production‐grade software using .NET C#, Python , and modern backend technologies Design and prototype services using containerised microservices Apply and challenge engineering best practices to continuously improve quality Make sound technical decisions in high‐impact areas ...

agility with the backing of a well-established business. The Senior Back End Developer will... take ownership of backend engineering for a new API-first data intelligence platform. Role Highlights Design and build scalable backend systems from a true greenfield starting point Define architecture, balancing rapid delivery with … long-term scalability Develop API-first services for data-heavy, enterprise-grade applications Embed observability, metrics, and performance tracking from day one Collaborate within a small, high-autonomy team shaping a new product You Will Need Extensive backend development experience within data-driven B2B environments Strong programming skills ...