51 to 75 of 80 API Design Jobs in the UK excluding London

APIs, Graph QL, Python (nice to have), CI/CD What we're looking for: Strong backend engineering experience (Java + AWS) Microservices and API design expertise Exposure to financial services or regulatory environments (preferred) High visibility role, strong engineering culture, and opportunity to work on large-scale ...

generated code for correctness, security, and financial accuracy Desirable, but no essential: Experience with Apache Airflow or similar workflow schedulers REST or GraphQL API design experience Knowledge of fixed income, FX, or derivatives products and associated P&L/risk methodologies ...

similar highly desirable) Solid experience with MySQL, including optimisation and performance tuning Experience with modern JavaScript frameworks (React, Vue, Angular etc.) Strong understanding of API design (RESTful or GraphQL) Experience working with Linux environments Familiarity with Git, CI/CD pipelines, and agile methodologies A proactive, solutions-focused ...

responsibilities Define and evolve technical architecture in collaboration with enterprise architecture stakeholders Shape deployment, configuration and operational practices to drive consistency, automation and reliability Design and evolve AWS-based serverless microservices and APIs Make pragmatic architectural decisions that balance delivery pace, cost and long-term maintainability Ensure solutions … across the wider engineering function Essential Experience Strong hands-on backend development experience with Python Deep expertise in AWS serverless architecture , including: Lambda/API Gateway/S3/SQS/SNS/EventBridge/Step Functions Proven experience designing and delivering microservices and event-driven architectures Strong experience ...

engineering standards, and ensuring solutions are scalable, secure and fit for purpose. What you'll do Lead the end-to-end development lifecycle from design through to delivery Define technical direction and architecture across Java and AWS services Architect and develop scalable backend services using latest Java (23+ … Spring Boot Drive best practice across TDD, CI/CD, and scalable API design Collaborate with Product, DevOps and QA teams to align technical delivery with business goals Guide technical change and continuous improvement initiatives Support and mentor engineers, fostering a high-performance culture What you'll bring ...

exciting opportunity to use your experience supporting the Metropolitan Police contract. In this role, you will lead software engineering teams responsible for the design, development, and quality of applications and services. You will provide technical leadership and people management, ensuring engineering standards, best practices, and system integrity are consistently … date Managing interface changes and dependencies Maintaining traceability between ICDs and system requirements Collaborate with architects and technical leads on system design Ensure technical documentation is produced and maintained Support governance, compliance, and audit requirements Basic Qualifications Experience as a Software Engineering Manager or similar role Strong background ...

designing and building robust, secure, and high-performance backend systems that support core marketplace functionality and evolving business requirements. Key ResponsibilitiesSystem Architecture & Development Design and implement scalable, maintainable backend architecture Apply SOLID principles, clean code practices, and clear separation of concerns Develop modular components using service-layer and repository … Passport) Service listings (creation, editing, search, filtering) Order lifecycle and transaction management Secure payment integrations (Stripe, PayPal) Internal messaging, reviews, and dispute resolution RESTful API development with versioning support Database & Performance Design and maintain efficient, well-structured database schemas Optimise SQL queries, indexing, and prevent N+1 issues Implement ...

high standards for security, auditability, and compliance Main Skills Needed: Strong background in building and running production-grade systems Solid backend engineering expertise and API design experience Good understanding of relational databases and data modelling Experience working in regulated or audit-heavy environments Full stack capability across frontend ...

working hours, patterns and locations to suit you and our business. About the Opportunity As a Principal Solutions Architect, you will specialise in the design, development and governance of integrated digital project controls environments across major capital programmes. This is not a general IT solutions architecture role. … needed. Key Responsibilities Define enterprise aligned solution architectures for programme controls platforms covering cost, schedule, risk, performance reporting and data governance. Lead evaluation, selection, design and configuration of programme controls systems such as EcoSys, Oracle Primavera P6 and Unifier, Aconex, CDEs including SharePoint and ProjectWise, and related digital delivery ...

customer-facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature … client's work, you are required to hold an eDV level security clearance. As an industry leading, nationwide Marketing, Digital, Analytics, IT and Design recruitment agency, we are continually receiving new assignments to work on, so keep a close eye on our website, Facebook, LinkedIn and Twitter pages ...

customer-facing software projects. Experience with one or more of the following: Full-stack web development Software as a Service (SaaS) Mobile application development API design and development Cloud platforms (AWS, Azure, GCP) Front-end development and user experience (UX) Clearance required - Due to the nature … client's work, you are required to hold an eDV level security clearance. As an industry leading, nationwide Marketing, Digital, Analytics, IT and Design recruitment agency, we are continually receiving new assignments to work on, so keep a close eye on our website, Facebook, LinkedIn and Twitter pages ...

working - 3 days per week onsite Salary up to £65,000 per annum A leading Birmingham-based client is seeking a Python Developer to design, build, and deploy applications using Python frameworks and LLM APIs. The position focuses on developing scalable, secure AI services in Azure's public cloud … involves hands-on work throughout the development lifecycle, including API design, data access, AI integration, and cloud deployment. Key skills and responsibilities: Design, develop, and maintain AI-driven applications and services utilising Python. Build and manage RESTful APIs with FastAPI. Integrate and oversee Large Language Models ...

computer science, engineering, or a related field 2-3 years commercial experience in development Experienced in C# and .NET Core Understanding of RESTful API design and integrations Understanding of CI/CD Pipelines and Git Desirable, but not essential: Experience with Azure Understanding of Containerisation using Docker ...

Autogen, Google ADK). Architecting RAG pipelines, vector database integrations, and prompt management strategies. Building guardrail frameworks to prevent hallucinations, injection and bias. Designing API-first and event-driven architectures. Influencing enterprise roadmaps, governance forums and technical standards. Partnering with senior engineers, value streams, and product stakeholders. What … bring Expertise in Azure AI, AWS Bedrock or Google Vertex. Strong experience with LLM evaluation/MES frameworks. Deep knowledge of integration security, API design and cloud-native patterns. Experience delivering solutions in regulated environments (desirable). Naturally proactive, consultative and comfortable influencing at senior levels. ...

stuck into some genuinely interesting engineering. Think computational complexity, mathematical optimisation, and performance challenges at scale - a long way from your average API job. Requirements: 7+ years experience developing and maintain scalable Python/FastAPI back-end services Ideally worked with high-performance APIs for complex hierarchical data queries … code Lead technical planning by breaking down roadmap items into scoped engineering work, driving ADRs and setting standards for code quality, testing, and API design Collaborate cross-functionally with front-end, data engineering, modelling and product teams to deliver reliable, impactful features Line-manage a team ...

with delivery teams, and accountable for turning architectural thinking into practical outcomes. Why This Opportunity Stands Out True Solution Architecture – You’ll own solution design from current-state assessment through to target architecture and delivery alignment. Greenfield thinking, real constraints – Apply modern architecture principles to a live, evolving estate … will: Assess existing applications and platforms and define clear target-state architectures Build and own system and application roadmaps aligned to business priorities Design scalable, modular solution architectures including integration and NFRs Lead migration and modernisation initiatives across legacy and cloud platforms Act as the architecture point of contact ...

month 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 objectives … 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. ...

lifecycle Software Product Owner: Technical Experience React 18+ - Hooks, Context, Suspense, concurrent features Node.js/Express or Fastify - production APIs, middleware, error handling REST API design - versioning, error contracts, idempotency 3rd Party API Intergration AWS Jira AI - willing to leverage The permanent role for a Software Product ...

technology teams with a track record of delivering high-quality software solutions Strong hands-on Back End engineering experience with Node.js, TypeScript, and API design Deep understanding of AWS and modern cloud-native architectures Experience working with distributed systems at scale, including performance optimisation and scalability improvements Knowledge ...

budget and quality requirements, and coordinating others as needed. Firmware Architecture and Lifecycle: Develop reliable, portable firmware with a long-life cycle. Firmware Development: Design, develop and maintain embedded firmware in C for Zephyr RTOS and Embedded Linux, including board bring up, drivers and HALs. Code Quality and Standards … another scientific subject. 8+ years of experience in embedded software development in C. A strong knowledge of Computer Science fundamentals in data structures, algorithm design, problem-solving, and complexity analysis. A strong grounding in embedded software architecture, with a focus on maintainability, modularity, fault-tolerance and testability. Confident ...

plus bonus and a hybrid working model from the Solihull offices. Software Product Owner: Duties Product development and software knowledge is essential Design, implement automated systems & processes Lead key strategic software projects for customers Combination of building requirements from BA's, PM's and client-side leads Translate requirements … into key business outcomes Build rapport with developers and business stakeholders Strong knowledge of the software development lifecycle Software Product Owner: Technical Experience REST API design - versioning, error contracts, idempotency 3rd Party API Intergration AWS Jira AI - willing to leverage The permanent role for a Software Product ...

processing is essential to understanding system performance and planning spiral development paths. This is a very hands-on role and requires the continued design and development of complex system architectures and the instantiations for future products. This is a perfect opportunity for a Software Engineer who is proactive … complex problems - you will be working with a dedicated group of experienced software, and systems engineers. We maintain an impactful team culture. Responsibilities: Design and develop real-time/embedded software using C and C++. Architect and implement robust, scalable, and maintainable multi-threaded applications. Work with hardware teams ...

Technical Skills: C#/.NET Microsoft SQL Server CI/CD pipelines Docker Angular RabbitMQ AI Development Tools Nice to have: Redis MongoDB REST API Design Azure Unit Testing Frameworks Benefits Package: Competitive base salary - £65k - £75k (DOE) Career Progression Flexi-Hours Onsite parking Exciting, and unique projects ...

Acting as a senior technical authority, championing Wilmington’s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches and system design • Proactively identifying and mitigating technical risks and support the CTO with technical due diligence for future acquisitions • Operating across multiple scrum teams, bridging project … architecture experience, providing the credibility to confidently interrogate system designs, integration strategies, and technical trade-offs • Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition • Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system ...

engineers across the organisation What you'll need to succeed 8+ years' experience in software engineering, with strong fundamentals in distributed systems and system design Proven background building and operating large-scale backend platforms in production Experience working within a product-led environment Hands-on experience with cloud-native … technologies, containers, and CI/CD pipelines Experience influencing technical direction across teams or domains Strong expertise in: Java Distributed systems architecture API design Performance optimisation and scalability Nice to have: Previous experience at Staff/Principal/Tech Lead level Exposure to high-volume, low-latency data ...