176 to 200 of 1,036 API Design Jobs in the UK

to craft intuitive, performant, and accessible interfaces that power global logistics operations. You'll lead the development of sophisticated UI features, collaborate closely with design and backend teams, and ensure seamless real-time interactions across the platform. Your work will enable critical capabilities such as multi-user collaboration, live … data updates, and complex workflow visualizations. You'll set high standards for frontend architecture, code quality, and user experience, while also contributing to design systems and component libraries that ensure consistency and scalability. Beyond building elegant interfaces, you'll play a strategic role in frontend technology decisions and mentor … used across the globe. What You'll Do: Build high-performance, scalable frontend applications using React and TypeScript, with seamless integration to backend APIs. Design and implement elegant user interfaces that deliver a smooth, accessible, and responsive user experience across devices. Collaborate closely with backend engineers to define API More ❯

ready to grow with us Location: Soho, London (onsite 4 days a week) Salary: Approx. £50.000 annually, depending on experience Main responsibilities Development and Design: Write clean, efficient, and maintainable code using TypeScript, JavaScript, Node.js, and React. Design and implement robust applications and services to meet predefined requirements. … and practices, such as Git, CI/CD pipelines, automated testing frameworks (e.g., Jest, Mocha), and containerisation technologies (e.g., Docker). Knowledge of RESTful API design and development, and familiarity with web services architecture. Ability to write efficient, secure, well-documented, and clean JavaScript code. Familiarity with database More ❯

of JavaScript/TypeScript, HTML, and CSS. Backend engineering experience with one or more languages (e.g., Node.js, Go, Python, Java, etc.), and familiarity with API design (REST, GraphQL, or gRPC). Frontend state management experience using tools such as Redux, Zustand, or Context API. Strong grasp of component … driven development , accessibility, responsive design, and UI/UX best practices. Experience with automated testing —unit, integration, and E2E—using tools like Jest, React Testing Library, Cypress, or similar. Cloud infrastructure experience (AWS, GCP, or Azure), with a focus on scalability, observability, and cost efficiency. Solid understanding of Infrastructure More ❯

testing Linux Operating Systems - Use, operate, patch and secure, Bash, RHEL Collaboration tools - Jira, Confluence, Slack Behaviour Driven Development - Cucumber Micro-Service Architecture - Develop API design and open standards RESTful APIs Swagger Open API Cloud computing Security OWASP Top Ten Denial of Service SQL Injection Cross Site … ensuring best practices are adhered to across the department and guiding teams on how to deliver quality software products. You will assist in the design of software products that make up citizen services in collaboration with Architecture and Engineering principles. With a focus on operational stability, robustness, resilience, availability … and quality you will be accountable for the code your teams produce. Design and lead the strategies for building reusable libraries and services Own the development of medium-long term strategies for product lines and the Software Engineering Community Identify and support the resolution of infrastructure faults Provide 3rd More ❯

and RDS will be pivotal to our success. Key Responsibilities Architect and Develop scalable, maintainable, and efficient Java applications with a focus on microservices. Design and Build cloud-based solutions utilizing AWS services, specifically ECS, EC2, SQS, DynamoDB, and RDS (MySQL/PostgreSQL). Collaborate with product managers, DevOps … systems run efficiently and at scale. Mentorship: Provide technical guidance to junior developers and ensure adherence to coding standards and best practices. Microservices Architecture: Design, develop, and deploy microservices that are fault-tolerant, resilient, and easily scalable. Key Skills And Qualifications Expertise in Java: Minimum of 7+ years of … such as ECS, EC2, SQS, DynamoDB, and RDS. RDS Knowledge: Strong working knowledge of relational databases, especially MySQL or PostgreSQL, and familiarity with database design, scaling, and optimization techniques. Microservices: Hands-on experience designing and developing microservices architectures, with proficiency in tools like Spring Boot, Docker, and Kubernetes. Problem More ❯

and frontend development while ensuring performance, security, and scalability. Key Responsibilities: Develop and maintain full-stack web applications using PHP and modern frontend technologies. Design and implement scalable solutions in multi-server environments. Work with AWS cloud services to build robust, distributed systems. Optimize database performance and design … PHP development experience. Expert-level knowledge of the Laravel framework. Strong understanding of the full HTTP workflow in multi-server environments. Experience with RESTful API design and implementation. Proficiency in both MySQL and PostgreSQL databases. System Administration & Infrastructure Working knowledge of Linux systems (command line, file permissions, process … orchestration tools. Frontend Development Proficiency in modern JavaScript (ES6+). Experience with frontend frameworks (React, Vue.js, or similar). Strong HTML5, CSS3, and responsive design skills. Understanding of build tools and asset compilation. General Requirements Strong problem-solving and analytical skills. Experience with version control systems (Git). Knowledge More ❯

and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers … with at least 3 years in a senior or technical lead role. Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong … or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid More ❯

and implementation, ensuring our platform is scalable, secure, and aligned with the rapidly evolving AI landscape. Key Responsibilities Provide visionary architectural leadership for the design, development, and delivery of a new generation AI-driven SaaS platform. Lead, mentor, and manage a team of Senior Full-Stack Developers and engineers … with at least 3 years in a senior or technical lead role. Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong … or platforms into software solutions. Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). Experience with CI/CD pipelines, automated testing, and DevOps practices. Solid More ❯

vehicle servicing, merchandising, and fleet ownership. Collaborative Environment: Work closely with engineering, product, technology, transformation, and business partners across the UK and Europe to design next-generation, customer-facing, software-as-a-service applications. What You'll Do: Lead and Innovate: Drive collaborative solutioning efforts to understand business needs … architecture solutions and collaborate with Product and Engineering teams for their implementation. Guide and Mentor: Lead teams of experienced architects and delivery leaders, facilitating design discussions, driving technical design reviews, and ensuring successful delivery. Communicate and Influence: Articulate solution designs to all levels of the organization and drive … Expertise: Strong software engineering background with hands-on experience in .NET, AWS, SQL & No-SQL databases, and event-driven systems. Proficiency in coding, REST API design, microservice implementation, and container technologies like Docker and Kubernetes. Interpersonal Skills: Excellent communication skills, both verbal and written, with the ability to More ❯

vehicle servicing, merchandising, and fleet ownership. Collaborative Environment: Work closely with engineering, product, technology, transformation, and business partners across the UK and Europe to design next-generation, customer-facing, software-as-a-service applications. What You'll Do: Lead and Innovate: Drive collaborative solutioning efforts to understand business needs … architecture solutions and collaborate with Product and Engineering teams for their implementation. Guide and Mentor: Lead teams of experienced architects and delivery leaders, facilitating design discussions, driving technical design reviews, and ensuring successful delivery. Communicate and Influence: Articulate solution designs to all levels of the organization and drive … Expertise: Strong software engineering background with hands-on experience in .NET, AWS, SQL & No-SQL databases, and event-driven systems. Proficiency in coding, REST API design, microservice implementation, and container technologies like Docker and Kubernetes. Interpersonal Skills: Excellent communication skills, both verbal and written, with the ability to More ❯

Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Cloud Infrastructure & DevOps: Lead our serverless and containerised deployment strategies across cloud providers … Architect scalable compute solutions for both web applications and AI workloads Manage multi-database architecture across relational and document stores Design fault-tolerant systems with automatic scaling and recovery capabilities Oversee CI/CD pipelines and comprehensive monitoring across all services Technical Leadership: Build and lead a team across … embedding systems, and retrieval architectures Technical Expertise: Full-stack development across modern web technologies Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML More ❯

us accelerate development across our entire technology stack. Key Responsibilities: Build and enhance our application Develop robust front-end interfaces and back-end services Design and implement scalable database systems and APIs Build and enhance our AI agents Optimize application performance and ensure system reliability Collaborate with product and … with vector databases and AI/ML integration Experience with LLM orchestration frameworks (LangChain, LangGraph, etc.) Financial domain knowledge or fintech experience Experience with API design and microservices architecture Background in data engineering or ETL processes Knowledge of monitoring, logging, and performance optimization Understanding of agent architectures and More ❯

us accelerate development across our entire technology stack. Key Responsibilities: Build and enhance our application Develop robust front-end interfaces and back-end services Design and implement scalable database systems and APIs Build and enhance our AI agents Optimize application performance and ensure system reliability Collaborate with product and … with vector databases and AI/ML integration Experience with LLM orchestration frameworks (LangChain, LangGraph, etc.) Financial domain knowledge or fintech experience Experience with API design and microservices architecture Background in data engineering or ETL processes Knowledge of monitoring, logging, and performance optimization Understanding of agent architectures and More ❯

delivery methodology to ensure timely and high-quality delivery of software applications. Technical Ownership: Take technical ownership of a product or software solution, covering design, estimation, shaping, and user story/requirement creation. Solution Documentation: Document solutions, including architecture, configuration, release, and support handover. Stakeholder Collaboration: Collaborate and liaise … practices and modern architectural patterns, including microservices and message-driven architectures. Non-Functional Requirements: Experience developing applications with non-functional requirements in mind. Application Design: Experience in application/digital services design. Software Engineering Practices: Proficiency in software engineering practices like code reviews, CI/CD pipelines, and SOLID … Frontend: JavaScript/TypeScript, Angular, React, Node. Backend: Java, Spring Boot, Hibernate. Desirable Kotlin. Estimation and Sizing: Experience in estimation and sizing. Integration and API Design: Experience in integration and API design. Cloud Experience: Proficiency in cloud technologies. Emerging Technologies: Appetite to work with emerging AI technologies. More ❯

both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead technical initiatives and projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable solutions. Collaborate with cross-functional teams to define, design, and ship new features. Ensure … code quality and maintainability through code reviews and adherence to design patterns. Optimize the performance of web applications to ensure fast and efficient user experiences. Mentor junior engineers and promote a culture of continuous learning and improvement. Address and refactor legacy code, bringing it up to modern standards and … in single-page applications (SPA) or back-office systems. Experience in optimizing the performance of web applications. Strong knowledge of software engineering principles and design patterns. Understanding of backend technologies, including Node.js, Express, or similar frameworks. 5+ years preferred. Experience with RESTful API design and development. Familiarity More ❯

both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead technical initiatives and projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable solutions. Collaborate with cross-functional teams to define, design, and ship new features. Ensure … code quality and maintainability through code reviews and adherence to design patterns. Optimize the performance of web applications to ensure fast and efficient user experiences. Mentor junior engineers and promote a culture of continuous learning and improvement. Address and refactor legacy code, bringing it up to modern standards and … in single-page applications (SPA) or back-office systems. Experience in optimizing the performance of web applications. Strong knowledge of software engineering principles and design patterns. Understanding of backend technologies, including Node.js, Express, or similar frameworks. 5+ years preferred. Experience with RESTful API design and development. Familiarity More ❯

both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead technical initiatives and projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable solutions. Collaborate with cross-functional teams to define, design, and ship new features. Ensure … code quality and maintainability through code reviews and adherence to design patterns. Optimize the performance of web applications to ensure fast and efficient user experiences. Mentor junior engineers and promote a culture of continuous learning and improvement. Address and refactor legacy code, bringing it up to modern standards and … in single-page applications (SPA) or back-office systems. Experience in optimizing the performance of web applications. Strong knowledge of software engineering principles and design patterns. Understanding of backend technologies, including Node.js, Express, or similar frameworks. 5+ years preferred. Experience with RESTful API design and development. Familiarity More ❯

APIs as well as internal service APIs. This is a role for engineers that are familiar with standard backend architecture, and capable in database design and interaction. Our API platform is under constant load and scrutiny, so experience and commitment to easily understood and test code is also … bugs. Our tech stack includes services built using Go, Redis, Postgres, and Cloudflare products (e.g. Workers). We are looking for proficiency in RESTful API design, relational databases (SQL), and modern containerized deployment practices. This role may require flexibility to be on-call outside of standard working hours More ❯

Modern JavaScript ES2018+ TDD and all aspects of testing from unit through to integration Familiarity with CI/CD pipelines Mobile-first web development API design and consumption Agile practices Desirable Skills Experience in a strongly-typed object oriented language such as C# or Java Typescript NestJS .NET More ❯

build a Quality Management System that aligns with regulatory requirements whilst preserving our engineering culture Develop core architecture improvements for system reliability, database performance, API security, and distributed system design Mentor the team on security and quality best practices, helping to build a culture where compliance is a … and DevOps practices (AWS ) Experience implementing and maintaining security controls and compliance frameworks Proficiency with infrastructure-as-code and GitOps methodologies Strong fundamentals in API design, databases, networks, and distributed systems Experience with CI/CD pipelines and automated testing TypeScript and Node.js proficiency in production environments Understanding More ❯

big and taking risks. In this project you will be working on a project utilizing Python, Django & SQL. Responsibilities: Understand/apply reusable code design, leverage application architecture/framework capabilities and functionality, and design/develop solutions that are highly reliable, scalable, and perform to meet business … Employ Agile engineering practices, Pair Programming, Continuous Integration, Test Driven Development, etc. Identify and implement improvements to products. Contribute to the technical code and design documentation. Requirements: Strong proficiency in Python, with hands-on experience in Django. Proficient with SQL and ideally a strong background in Relational Databases (Oracle … of Web UI frameworks such as REACT or Angular is advantageous. Experience in Cloud and Container based application development is advantageous. Expertise in software design using SOLID or GRASP is advantageous. Knowledge of data modelling/schema design is advantageous. Exposure to Microservice architecture, REST API design More ❯

expected) Location: Bradford, UK - 3 days in the office Pay: negotiable, inside IR35 We are seeking a seasoned Python Technical Architect to lead the design and development of scalable, high-performance backend solutions. This is a contract position offering the opportunity to drive architectural excellence within a collaborative, agile … environment. Key Responsibilities - Architect and design secure, scalable backend systems using Python - Define and enforce coding standards and development best practices - Lead code reviews, technical discussions, and mentoring initiatives - Collaborate with cross-functional teams including Product Owners and BAs - Ensure alignment with architectural principles and agile processes - Guide framework … trends Essential: - 10+ years in software development, with 6+ years in Python - Expertise in Django, Flask, or FastAPI - Strong grasp of microservices and RESTful API design - Proficiency in relational and NoSQL databases (PostgreSQL, MongoDB) - Hands-on experience with AWS, Azure, or GCP - Familiar with Docker and Kubernetes - Solid More ❯

Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Lead our serverless and containerised deployment strategies across cloud providers Architect scalable compute … solutions for both web applications and AI workloads Manage multi-database architecture across relational and document stores Design fault-tolerant systems with automatic scaling and recovery capabilities Oversee CI/CD pipelines and comprehensive monitoring across all services Technical Leadership: Build and lead a team across full-stack development … self-hosted solutions Understanding of vector databases, embedding systems, and retrieval architectures Technical Expertise: Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML More ❯

Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Lead our serverless and containerised deployment strategies across cloud providers Architect scalable compute … solutions for both web applications and AI workloads Manage multi-database architecture across relational and document stores Design fault-tolerant systems with automatic scaling and recovery capabilities Oversee CI/CD pipelines and comprehensive monitoring across all services Technical Leadership: Build and lead a team across full-stack development … self-hosted solutions Understanding of vector databases, embedding systems, and retrieval architectures Technical Expertise: Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML More ❯

Guide development of our Nuxt (Vue 3) frontend with TypeScript and modern CSS frameworks Manage our React Native mobile app development and cross-platform API integration Ensure seamless integration between frontend, backend, and AI orchestration layers Lead our serverless and containerised deployment strategies across cloud providers Architect scalable compute … solutions for both web applications and AI workloads Manage multi-database architecture across relational and document stores Design fault-tolerant systems with automatic scaling and recovery capabilities Oversee CI/CD pipelines and comprehensive monitoring across all services Technical Leadership: Build and lead a team across full-stack development … self-hosted solutions Understanding of vector databases, embedding systems, and retrieval architectures Technical Expertise: Containerisation (Docker) and orchestration platforms (Kubernetes, ECS, or equivalent) Database design across SQL and NoSQL systems API design, microservices architecture, and distributed systems Cloud infrastructure management and infrastructure-as-code AI/ML More ❯