51 to 75 of 188 API Design Jobs in the UK excluding London

will contribute across multiple domains, partnering with business and technology stakeholders to deliver strategic platforms that enable the firm's objectives. Job ResponsibilitiesLead the design, development, and delivery of innovative software solutions, solving complex problems with creative and forward-thinking approachesBuild and maintain high-quality, secure, and production-grade … modern front-end frameworks (e.g., React)Demonstrated experience in designing scalable, secure, and resilient distributed systemsStrong understanding of modern architecture patterns (microservices, event-driven, API-first)Experience with CI/CD pipelines, containerization (Docker, Kubernetes/ECS/EKS), and Infrastructure as CodeExpertise in API design (REST ...

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 ...

background and has moved into Solution Architecture over the last few years. You will work at the intersection of business and technology, helping to design practical, scalable and secure solutions across a complex enterprise application landscape. This is a hands-on architecture role where you will work closely with … practical implementation. This role would particularly suit someone with approximately 2–3 years' experience in Solution Architecture, Technical Architecture or a senior technical design role , supported by a previous career in software engineering or development. Key Responsibilities Translate business requirements into clear and practical technical solution designs. Produce architecture ...

teams, you will help shape the future integration strategy while ensuring high-quality, scalable, and maintainable solutions are delivered across the programme. Key Responsibilities Design and deliver integration solutions, migrating services from legacy platforms to modern strategic integration platforms. Define API specifications and integration patterns, including the transformation … legacy SOAP services into modern RESTful APIs. Apply API-first and domain-driven integration approaches to support reuse, resilience, and long-term maintainability. Contribute to end-to-end solution design, ensuring alignment with wider enterprise architecture principles and transformation objectives. Promote modern engineering practices including automated testing ...

occasional out-of-hours support. Ensure unit tests are implemented and fit for purpose. Research and evaluate new technologies that could benefit the organisation. Design and develop high-quality Python software that meets complex business needs. Ensure code, documentation, and testing align with engineering standards. Deliver solutions that meet … expectations, and operational reliability. Integrate products with monitoring and support tooling. Experience/Skills required: Experienced Python Developer who can make sound trade-offs, design for scale, and contribute to complex systems without over-engineering. Strong engineering judgement and real-world delivery experience. Senior-level experience designing and building ...

Title: Senior Cloud Software Developer Location: Cambridge, United Kingdom (Hybrid) Employment Type: Full-time The job Join AVEVA’s Core Services team to design and implement secure, resilient cloud platform capabilities using Microsoft Azure. This Senior-level role is suited to an experienced developer with a strong record … delivering complex technical solutions and an interest in cloud development. You will work as part of an agile team, contribute to design decisions, build high-quality services, and use modern engineering practices, including AI-assisted development tools, to improve productivity and software quality. Key responsibilities Design, develop ...

applications while collaborating with architects, engineers and stakeholders to deliver innovative digital solutions. The Role As a Senior Software Engineer, you'll lead the design and development of modern cloud-native applications, working closely with clients to understand business requirements and translate them into robust technical solutions. … contribute to solution design, mentor other engineers, promote engineering best practices, and help shape scalable, resilient platforms built on Microsoft Azure. What You'll Be Doing Design, develop and deliver modern cloud-native applications. Build scalable, secure and resilient event-driven solutions. Develop production-quality software using .NET ...

drive an agent, validate its output, and ramp on an unfamiliar codebase with an agent helping you. What are the responsibilities of the role? Design and build full stack web applications to support end-to-end automation and test infrastructure Integrate AI capabilities including LLM-driven experiences in existing … cases Collaborate with cross-functional teams to define and deliver external partner-facing and internal tooling Architect and own technical solutions and designs, evaluating design alternatives and trade-offs to deliver pragmatic, scalable, reliable, and maintainable solutions Create and maintain requirement and technical documentation, clearly defining user requirements, expected ...

enabled systems in secure, enterprise environments. In this role, you will collaborate closely with engineering teams across our group to develop priority use cases, design and build services, and promote best practices for scalable, resilient, and secure AI adoption. You will also mentor engineers, contribute to firmwide standards … enabling our AI strategy, combining practical expertise with AI/ML knowledge to ensure our systems are secure, compliant and performant. Job responsibilities Design and develop modular, maintainable AI systems and interfaces aligned to Infrastructure platform standards, optimizing for scalability, resiliency, and long-term operability. Partner closely with Applied ...

some of the largest and most respected players across the wealth management industry. What You’ll Do Build Agentic Systems Contribute to the design and delivery of agentic systems: workflows where AI plans, executes, and iterates toward outcomes rather than simply responding to requests Build and ship production-quality … solutions as part of a squad working on real efficiency and automation problems with direct business impact Participate in the full delivery lifecycle: design discussions, development, testing, deployment, and iteration Apply AI-Native Development Practices Use AI-assisted development tools, including code generation, prompt engineering, and agentic frameworks ...

Raising the bar across software (typing, testing, observability, tooling, and thoughtful refactors), tooling, and ways of working What you'll do Design, build and operate the Python backend services behind Asset Backed Trading Own event driven flows from trigger to dispatch: queues, lambdas, events, and the Flex API … these areas will help. Core skills Strong Python experience Experience building and operating backend services in production Comfort with cloud platforms, ideally AWS (Lambda, API Gateway, SQS, EventBridge, DynamoDB, S3) API design and domain modelling for complex business workflows Writing robust, typed, well tested code (pytest ...

Deep Sea Electronics is a global leader in the design and manufacture of generator controllers, automatic transfer switch controllers, battery chargers, and vehicle and off-highway control systems. With over 200 employees across four continents, we supply our products to customers in more than 150 countries, both directly from … tooling in one or more of PHP, Golang, NodeJS (TypeScript) or C# Maintain and extend WebNet's MQTT broker infrastructure and WebSocket/HTTP API layers With a focus on IoT protocols and technologies, remain up to date with the latest developments and bring forward suggestions where relevant ...

Your experience with cloud platforms, concurrency, and modern engineering practices will contribute directly to the ongoing modernisation of business‐critical market systems. You will Design, develop and support cloud‐first, scalable software solutions that underpin real‐time market execution and transaction processing systems. You’ll work on distributed, event … Azure‐based environments with some exposure to other cloud platforms. Contribute to the end‐to‐end delivery of business‐critical services, from application and API design through to service integration, packaging, and deployment, ensuring solutions are resilient, secure, and built for continuous evolution. Embed observability and operational insight ...

Kotlin and Java on the AWS Cloud platform, following best practice. In addition to Kotlin, this project utilises Typescript/Node.js using the GOV.UK Design System. Kubernetes and Docker to schedule and run services hosted on AWS Cloud. You’ll join a Scrum Team of cross-functional skills working … including microservices and message-driven architectures NFR/Non-Functional requirement understanding and experience developing applications with this in mind Application/Digital Services Design experience Experience in software engineering practices like Code Reviews, CI/CD Pipelines and SOLID/DRY principals Hands-on developing/coding role ...

technology solutions across multiple technical areas within various business functions in support of the firm's business objectives. Job responsibilities Execute creative software solutions, design, development, and technical troubleshooting with the ability to think beyond routine or conventional approaches to build solutions or break down technical problems Develop secure … respect Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and advanced applied experience Hands-on practical experience delivering system design, application development, testing, and operational stability Demonstrated proficiency in software applications and technical processes within a technical discipline (e.g., cloud, artificial intelligence, machine learning ...

senior engineering role and you'll be joining at a point where the architecture, delivery approach and product direction still matter. You'll design and ship production services, contribute to a structured strangler-fig migration, and use AI-assisted development tools such as Cursor and Claude Code as part … suit an experienced Senior Developer, or a strong Developer ready to step up in a collaborative, senior-led environment. What You'll Be Doing Design, build and support cloud-based services in .NET 10 across Azure API Management, Azure SQL and the wider Azure platform. Help modernise ...

React and Node.js Collaborate on integration work connecting the two core GenAI platforms Embed GenAI capabilities into high-value underwriting and claims style workflows Design and implement REST/GraphQL APIs supporting platform features Contribute to cloud architecture decisions across AWS and/or Azure Instrument features with observability … scalable GenAI deployment What You'll Need Essential: Solid commercial experience with Python, TypeScript, React and Node.js Experience with REST and/or GraphQL API design and implementation Familiarity with AWS and/or Azure cloud architecture Working knowledge of containerisation (Docker/Kubernetes) and CI/ ...

passionate Senior Software Engineer to join our Core AI Services team at the forefront of industrial AI Innovation. In this role, you will help design, develop, and scale AI-enabling platform services, agentic workflows, and public APIs that are secure, reliable, and cloud-native. These services will … passion for keeping up with the latest AI engineering patterns and practices, eager to translate emerging tech into reliable, enterprise-ready software. Key Responsibilities: Design, build, and maintain scalable, fault-tolerant cloud-native services on Microsoft Azure. Develop secure, well-documented public APIs and SDKs for consumption by internal ...

Slack and React: the agents people talk to and the apps they click through, built in TypeScript. And you don't stop there. From API and MCP design to infrastructure on Vercel, AWS, Supabase, and BigQuery, plus the agents that work across the stack, you own complete features … software factory. What you'll bring 5+ years of experience building applications or tooling that automate human workflows Full-stack experience across the board: API design, databases, async workflows and background jobs on the backend, and clean, user-friendly UX on the frontend. Being AI-native. An early ...

that powers both internal operations and the public-facing auction website. It has been built as a modern TypeScript solution using a Node.js backend API with NestJS, a React administrative portal, and a Next.js customer-facing website. The product is hosted on a contemporary AWS cloud architecture using infrastructure … storage, content delivery, real-time capabilities and observability built in. You'll be responsible for ongoing development, bug fixes and iterative enhancements across the API, admin portal and customer website, while continuing to evolve the platform using current engineering practices and AI-enabled delivery methods. Collaboration & knowledge transfer (first ...

organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Key Responsibilities Drive the design and delivery of enterprise-scale applications supporting critical business functions and large user populations. Remain hands-on with software architecture, system design, code … containers, microservices and event-driven architectures. Strong understanding of distributed systems, resiliency patterns, scalability and performance engineering. Strong knowledge of SQL and NoSQL technologies, API design and integration patterns. Excellent communication and stakeholder management skills with the ability to influence technology decisions across numerous teams and organisations. Growth ...

Lead Product Manager - API & Platforms Location: Manchester, UK, Only 1 or 2 days to office Role Overview We are looking for a Lead Product Manager to own and scale our core API platforms, backend microservices, and data tools. You will lead cross-functional engineering teams to build high … performance systems, improve developer experience, and integrate AI/data solutions across our global platform. Key Responsibilities Platform & API Strategy: Own the roadmap and backlog for core APIs and microservices, ensuring high availability, speed, and scalability. Technical & AI Execution: Work with engineers and data teams to design data ...

Lead Technical Product Manager - API & Platforms Location: Manchester, UK, Only 1 or 2 days to office Role Overview We are looking for a Lead Technical Product Manager to own and scale our core API platforms, backend microservices, and data tools. You will lead cross-functional engineering teams … build high-performance systems, improve developer experience, and integrate AI/data solutions across our global platform. Key Responsibilities Platform & API Strategy: Own the roadmap and backlog for core APIs and microservices, ensuring high availability, speed, and scalability. Technical & AI Execution: Work with engineers and data teams to design ...

This Role We're hiring a senior back-end engineer who owns real problems end-to-end and shapes how the team builds, from API design and data modeling through to service implementation, production reliability, and launch. You already use AI as part of how you think, build … test, and ship. You'll write code that moves money in production, design and modernize the backend services the platform runs on, and lead delivery of new capability as Xe rebuilds its platform layer. You'll work in a small team with direct access to product, compliance, and operations ...

flow metrics, communicating timelines, dependencies, and risks early and transparently. Establish engineering guardrails across scope, quality, and non-functional requirements, enabling teams to design optimal solutions within them. Champion observability and operational excellence, ensuring system health, SLOs, and alerting are visible and actively managed. Partner with Tech Leads … Architects on system design and evolution, bringing structured thinking to complex, distributed environments. Foster a culture of ownership, collaboration, and continuous improvement, helping teams navigate technical and product challenges with clarity and purpose. Grow and develop engineers through coaching, feedback, hiring, and creating an environment that supports autonomy, mastery ...