51 to 75 of 76 API Design Jobs in England

Architect for a project (Outside IR35.) You will work closely with senior stakeholders and the wider team on both high and low level solution design to provide improvements on existing systems. Provide technical leadership and guidance throughout the project lifecycle, ensuring solutions are scalable, secure, and align with business … complex enterprise solutions. Strong background in software development and system integration. Strong understanding of cloud platforms (AWS, Azure, Google Cloud) Experience with microservices architecture, API design, and integration patterns. Experience with DevOps practices and tools. Please apply now to be considered for this role. ...

environments, helping to drive best practice and continuous improvement across the engineering function. Key Responsibilities Lead, mentor, and support a team of Java Developers. Design, build, and maintain APIs for internal and external use. Develop automated test suites and contribute to CI/CD and continuous deployment pipelines. Provide … Technical Lead. Proven experience guiding or leading development teams. Deep knowledge of CI/CD systems and automated testing frameworks. Solid expertise in API design, backend services, and system integration. Experience in system administration and configuration management. Strong understanding of scalable architectures and high-traffic environments. Comfortable with ...

+ benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical systems. This role offers the chance to work on cutting-edge technology … where speed, scalability, and resilience are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40s) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with ...

MuleSoft Architect Key responsibilities: Development of API management and microservices Working as the Integration Technology Architect on the adoption of Hybrid Integration or an iPaaS solutions with a particular focus on the Mulesoft Anypoint platform that includes API Designer, AP manager, and API studio Defining and delivering … Integration Technology aspects of the projects, including timely production of architectural designs and documentation Being a key contributor and advocate of Microservice, API Management, process automations, frameworks in projects and programs Working with Capgemini teams in Switzerland, Europe, and on the global level, on large programs that include multiple ...

shaping why we build things, how we build them, and what the future of our product looks like. You’ll collaborate across product, design, and engineering to make decisions that matter: data models, integration patterns, API design, scalability choices, and how we support a system used … polished, intuitive experiences Contribute to technical discovery, architecture thinking, and implementation planning Ask product and UX questions when something doesn't quite add up Design with scale, reliability, and enterprise readiness in mind (security, compliance, flexibility) Own your work from idea to production and care about the impact once ...

Brief: Own the C++ microservice layer powering imaging, AI, and database capabilities for a new Windows-first (Linux-capable) platform. Responsibilities Design and implement performant C++ microservices for imaging, visualization, and AI workflows. Build APIs and integrate services with the front-end (React/Node/TypeScript). Optimise … environments. Requirements Expert-level C++ with experience building microservices or high-performance systems. Background in imaging, computer vision, or AI integration. Familiarity with databases, API design, and cross-platform development. ...

product strategy. Requirements: Strong foundations in algorithms, data structures, and distributed systems Experience building and operating large-scale backend systems Expertise in system and API design, scalability, and performance tuning Proficiency in a modern backend language (Java preferred) Knowledge of cloud-native architectures, containers, and CI/ ...

influencing product strategy.Requirements: Strong foundations in algorithms, data structures, and distributed systems Experience building and operating large-scale backend systems Expertise in system and API design, scalability, and performance tuning Proficiency in a modern backend language (Java preferred) Knowledge of cloud-native architectures, containers, and CI/ ...

expertise across the software stack including firmware/embedded systems, device drivers, OS-level programming (Linux, RTOS), hardware abstraction layers, system software, SDK development, API design, application software, and software tools/utilities Experience with high-speed interface technologies (PCIe, CXL, NVMe, Ethernet, or similar protocols) and system ...

management business processes, including portfolio management, client onboarding, reporting, and regulatory requirements Knowledge of financial markets, investment products, and portfolio construction principles Familiarity with API design and integration patterns in financial services Experience with user research methodologies and customer journey mapping Understanding of modern web technologies and their ...

international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions scale … role requires consultancy-level technical depth, strong delivery discipline, and the ability to translate complex operational needs into scalable, enterprise-ready solutions. Key Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular ...

international organisation in the aviation sector is seeking a Principal Engineer to lead the design and delivery of enterprise-scale engineering solutions supporting AI-driven platforms. This is a senior, hands-on role embedded within a major airline environment, with responsibility for setting technical direction and ensuring solutions scale … role requires consultancy-level technical depth, strong delivery discipline, and the ability to translate complex operational needs into scalable, enterprise-ready solutions. Key Responsibilities Design and own architecture across all layers of the technology stack. Write production-grade code and deliver enterprise-ready solutions at pace. Engineer scalable, modular ...

Laravel. Expertise in Typescript and frontend testing frameworks (Cypress, Vite). Comfortable working across the stack, but love creating smooth, user-friendly interfaces. RESTful API design and can build performant endpoints. Ability to thrive in a fast-paced, startup environment where your work has visible impact. Proficiency … part of a team of 6-7 developers maintaining and enhancing existing software products using Vue/Nuxt.js and RESTful Laravel API’s. As Full-Stack Engineer with a definite front-end lean, you will be writing performant, testable and maintainable code. They will look for you to collaborate ...

commercial software development experience. Proven success in high-performing engineering teams within fast-paced environments. Deep expertise in: Python (Django, Flask, or FastAPI) PostgreSQL (design, optimisation, maintenance) Containerisation (Docker/Kubernetes) Event-driven architecture (Kafka/RabbitMQ) Desirable experience includes: TypeScript/JavaScript (NextJS, NodeJS, Tailwind) Terraform and DevOps … practices Experience in building and scaling SaaS platforms in production. Strong background in software architecture, microservices, and API design. Hands-on experience with AWS platform. Excellent communication skills, capable of motivating and aligning technical teams. Experience with AI tools, APIs, or ML pipelines is highly desirable. Bonus: Exposure ...

paid position suitable for both experienced professionals and recent graduates eager to develop their careers in software engineering. Key Responsibilities Lead the design, deployment, and development of web-based and microservice applications using Angular, TypeScript, and .NET Core. Architect and implement CI/CD pipelines using Azure DevOps. Conduct … PHP. Experience with frameworks such as React, Angular, Node.js, Django, or .NET. Understanding of databases such as MySQL, PostgreSQL, or MongoDB. Familiarity with RESTful API design. Experience with Git version control. Understanding of software testing methodologies and CI/CD pipelines. Excellent problem-solving and analytical skills. Strong attention ...

experienced Integration Architect to join on a 12-month contract . This role is ideal for someone who specialises in system integration, API design, and cloud-based architecture (Azure) and enjoys shaping strategy as well as guiding delivery teams click apply for full job details ...

leading global investment management firm in London. Paying up to 120k plus bonus per annum, you will contribute to the development, optimisation, and design of front-office applications, collaborating with portfolio managers and product owners to create innovative and high-performance solutions. As a Senior Full Stack Software Engineer …/UX. Proven backend expertise, particularly with Java (Python, Node.js a plus), and experience building distributed microservices-based architectures. Strong knowledge of system design principles, scalable architecture patterns, and API design. Hands-on experience with relational (Postgres, MySQL) and NoSQL (DynamoDB) databases. Proficiency in cloud platforms (AWS, Azure ...

robust test scripts are included Focus on delivering highly available, highly resilient software and service capability Participate in a wider delivery team providing design and development of the new capabilities Support transformation of the current payment estate, with laser focus on modernization and adoption of cloud-based technology … designing, programming, documentation and implementation of the systems Perform reviews of new and existing systems to ensure operational integrity and accomplishment of stated objectives Design, code, test, debug and document programs as required Provide architecture guidance to developers based on best practices and in alignment with global standards Ensuring ...

mitigate risks associated with migration and system cutover. Core Skills & Experience: Proven expertise in PAS systems and complex data migration projects. Strong knowledge of API design and integration . Advanced data modelling skills for structured and semi-structured data. Proficiency in XML, JSON, and Excel for data handling ...

Qualifications Extensive experience developing scalable, high-performance backend systems using Node.js and/or Java (v21+). Strong knowledge of microservices architecture and RESTful API design. Demonstrated ability to lead technical initiatives, mentor engineering team members, and promote best practices across projects. Preferred Skills and Experience Hands-on experience … Proficiency in containerization technologies (Docker, Podman) and Kubernetes-based orchestration. Experience implementing secure coding practices and integrating IAM solutions such as Keycloak. Familiarity with API gateway platforms including WSO2, Kong, or Apigee. Advanced understanding of security standards such as TLS, OAuth2, encryption techniques, and threat mitigation strategies. Practical experience ...

Backend API & Integrations Developer Typical UK Salary: £55,000 – £85,000 per year Key Responsibilities: • Build and maintain backend APIs supporting all portal modules. • Integrate with telecom APIs, SIP platforms, and webhook systems. • Implement database schemas and optimise queries. • Develop the tender module, supplier marketplace backend, and contract summarisation … logic. • Maintain API gateway routing and service-to-service communication. • Work with DevOps on deployment and reliability. Required Skills: • Strong Node.js or Python backend development. • Experience with RESTful API design. • Database experience (PostgreSQL, MySQL, or MongoDB). • Experience integrating 3rd-party APIs. • Understanding of async workflows and queues. ...

large-scale software platform. Working across multiple teams to ensure alignment and scalability throughout the business. Set technical direction and contribute to key design decisions across teams. Lead by example, writing high-quality, maintainable code in Node.js and TypeScript. Design and optimise CI/CD pipelines, improving automation … robust services. Mentor and coach engineers, helping to raise the overall bar for backend development. Drive best practices in platform engineering, cloud infrastructure, and API design. Key requirements: 7+ years' experience in backend or platform engineering roles, with recent experience at senior/staff level. Deep hands-on expertise ...

regarding area of responsibility Qualifications Bachelor's Degree required in Computer Science, Engineering or related majors Minimum of 8 years' applied experience as an API engineer Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc. More than … programming in Java and ideally Go and Rust Expertise in JVM tuning and diagnostic for application troubleshooting and performance-optimization Expertise in distributed system design including microservices, Springboot Experience working with Kafka, Docker, k8s, service mesh Experience with monitoring and observability technologies: Splunk, Grafana, Prometheus, Jaeger, Kiali, Open Telemetry ...

edge financial products and deliver robust, production-quality code that powers critical trading and risk systems. Youll collaborate closely with quants and traders to design and implement solutions that make a real impact. What Youll Do Develop high-performance applications in C# or C++, with code deployed in production … environments. Design and implement system architecture and APIs for complex financial workflows. Apply strong quantitative and mathematical skills to model and solve challenging problems. Work with a broad range of financial products, including rates, FX, inflation, and credit. What Were Looking For Proven experience in high-level programming (C# ...

MuleSoft Architect Key responsibilities: Development of API management and microservices Working as the Integration Technology Architect on the adoption of Hybrid Integration or an iPaaS solutions with a particular focus on the Mulesoft Anypoint platform that includes API Designer, AP manager, and API studio Defining and delivering ...