1 to 25 of 138 API Design Jobs in England

seeking an experienced and highly technical API Platform Architect to lead the architecture, engineering, and continuous evolution of our enterprise API Platform. This role is fully hands-on , combining deep expertise in Azure cloud services, Kubernetes, Terraform, API security, and distributed systems with the ability to guide … review, and contribute to .NET Core API development practices . The architect will define and maintain the vision and standards for the platform while actively engaging in coding, troubleshooting, design reviews, and production support. Key Responsibilities & Requirements 1. Architecture Leadership & Platform Ownership Own the architecture, design, standards ...

London. 12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. Salesforce & ReactNative - Salesforce and .or ReactNative (Web), Java, TDD, RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, SonarQube, Veracode, Jira, Confluence Open Stack BA - Salesforce, ReactNative (Web), Java … RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, Jira, Confluence API Developer - Java, TDD, RESTful API design & build, OAS/YAML, GitLab, CI/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply ...

12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. Open Stack/Salesforce & ReactNative - Salesforce, ReactNative (Web), Java, TDD, RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, SonarQube, Veracode, Jira, Confluence Open Stack BA - Salesforce, ReactNative (Web), Java … RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines, Jira, Confluence API Developer - Java, TDD, RESTful API design & build, OAS/YAML, GitLab, CI/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply ...

Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 Join a Service Modernisation team driving AI-first software development in financial services. This … development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java/Microservices/API design/LLMs/AI/Claude Code/Copilot ...

possess a combination of some of the following skills, then LETS TALK! Experience in Java development Backend cloud-based application development Understanding of API design for mobile applications with event-driven architecture Strong analysis and problem-solving skills Preferred - Experience of building distributed scalable microservices using Java/… Kotlin, Spring Boot, OAuth 2.0, Secure API design A working understanding of technologies/areas: AWS, API Design, Automation testing In return, you will be rewarded with a highly competitive benefits package including a bonus and ongoing career development and training. What you need ...

embark on a journey along with an organization to becoming the best tech, modern luxury, and sustainable mobility company in the world. The Enterprise API portfolio is here to enable seamless new customer experiences across all our iconic brands. We are scaling our API operations and looking … teams and provide technical leadership in designing evolvable systems that can scale to meet our customer needs. Help guide development using JLR API patterns and practices. As part of the team, you will collaboratively be designing, implementing, and run API technology solutions on our platform. Drive the strategic ...

infrastructure or DevOps transition role . The successful candidate will already identify as an integration engineer and be comfortable discussing integration patterns, API design, security, error handling, and modular architecture, as well as collaborating closely with technical and non-technical stakeholders. You will contribute to major transformation programmes … while also helping to shape integration standards, patterns, and best practices within a regulated environment . Key Responsibilities Design, build, and support API-led, event-driven, and batch integrations across AWS and Azure Work closely with business analysts, software engineers, solution architects, and QA to translate business requirements ...

Senior Azure API Engineer Outside IR35 | £(Apply online only)/day | Remote/Hybrid UK The Role Lead the design and delivery of enterprise-grade API solutions on Azure. You'll architect scalable, secure API platforms that unlock business value from data and drive monetization opportunities. … Platform team, you'll build the critical integration layer connecting internal teams and external customers to consistent, reliable data services. What You'll Do Design and operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define ...

requirement to be in one of the offices up to 3-days per week. The Role We are looking for a Security Design Engineer to lead secure software and application design across a critical in-house platform. You will own end-to-end solution design, produce high … service onto new infrastructure. Key responsibilities Own and deliver secure solution designs aligned to architecture standards and reference models Define architecture patterns, design decisions, risks, and deviations Collaborate with enterprise and solution architects to ensure strategic alignment Provide technical assurance and consultancy to engineering teams Present designs and recommendations ...

Senior Azure API Engineer Outside IR35 | £550-750/day | Remote/Hybrid UK You must have the right to work in the UK The Role Lead the design and delivery of enterprise-grade API solutions on Azure. You'll architect scalable, secure API platforms that … Platform team, you'll build the critical integration layer connecting internal teams and external customers to consistent, reliable data services. What You'll Do Design and operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define ...

pressure; make frame-time and latency predictable across device classes Define and monitor SDK health metrics at scale (crashes, ANRs, error rates, perf envelopes) API design and developer experience Design clear, stable, Kotlin-first public APIs (versioned, well-documented, testable) Implement best practices for networking, auth … fixes and verify via dashboards Provide concise developer-facing change notes/migration snippets to the Solutions Engineer for release notes Roadmap contribution Co-design the next generation of the Android Captur SDK for release at the end of Q2 Champion performance budgets and device-class targets during planning ...

shaping Meteor's digital future. Key Responsibilities Lead, mentor, and inspire a team of developers, fostering a culture of technical excellence and continuous improvement Design, develop, and maintain high-quality software solutions across the full stack Architect and implement systems using .NET, JavaScript, SQL, and modern frontend frameworks Oversee … API design and integrations, ensuring secure and efficient data exchange Translate business and stakeholder requirements into clear technical solutions Conduct code reviews and ensure adherence to coding, security, and quality standards Drive continuous improvement in development workflows, testing, and deployment practices Support the professional development of team members ...

Days in Office The Role Dev Sec Ops Engineer Role Overview We are seeking a highly skilled Senior Data Platform & Integration Engineer to design, develop, and optimize enterprise data solutions. The ideal candidate will have deep expertise in modern data platforms, integration technologies, and advanced analytics, including AI/… ML. Key Responsibilities Data Platform Management Design and implement solutions using Microsoft Fabric, Snowflake, CosmoDB, Databricks, MongoDB, and traditional RDBMS systems Data Replication & CDC Configure and manage Qlik Replicate and Oracle GoldenGate for real-time data synchronization Data Modeling Develop conceptual, logical, and physical models using ERStudio Integration & Messaging ...

Role We’re hiring a Backend Engineer to build the core infrastructure behind Revax’s AI-native platform for professional services. You’ll design, optimise, and scale the systems that power multi-agent drafting, knowledge graphs, and auditable AI workflows used by accountants, tax advisors, and consultants at leading … graphs, and real-world enterprise workflows. What You’ll Do Build & own core backend systems · Build and optimise databases for complex, real-world data · Design and implement APIs using FastAPI for AI workflows and product features · Build and scale LangGraph-based multi-agent systems with checkpointing, retries, and observability ...

Contract API Gateway Specialist (Software AG/webMethods/Defence) £600 per day (Outside IR35) Part-time 12‐month contract (approx. 110 days’ effort ) Full Remote | Client based in Portsmouth About the Role An excellent long-term contract opportunity for an experienced API Gateway Specialist to support … major Defence-sector programme. The successful contractor will work remotely, contributing deep technical expertise around Software AG and webMethods technologies, cloud integrations, and secure API design. Candidates with a strong background in API Gateway technologies (SAG, IBM API Gateway, webMethods) from any sector will be considered. Existing ...

Role Title: Business Analyst - API Payments Umbrella rate: £350 - £385/Day Location: Knutsford Duration: 12 Months Days on site: 2-3 We are seeking a highly skilled Payments Business Analyst with strong experience in API integration and a solid understanding of the Payments domain. The ideal candidate … will act as a bridge between business stakeholders and technical teams, ensuring seamless delivery of payment solutions and API-driven integrations. Key Responsibilities * Requirements Gathering & Analysis o Collaborate with business stakeholders to understand payment workflows, transaction processing, and integration needs. o Document functional and non-functional requirements for APIs ...

API Developer - London Atrium EMEA are looking for several API Developers to support the Development teams onsite with a client in London. 12+mths contract, 2 days onsite/3 days remote, PAYE/Umbrella options. - API Developer - Java, TDD, RESTful API design & build, OAS/…/CD Pipelines, Java Database-Hibernate/JPA, SonarQube, Veracode, Jira, Confluence Click Apply now or contact Lianne to be considered for the API Developer - London role ...

user stories, technical approaches, and delivery estimates. Contribute to and help shape roadmaps and delivery plans, balancing business priorities, technical constraints, and engineering effort. Design, develop, and maintain backend services and REST APIs using PHP (Laravel v10). Own and evolve Elasticsearch implementations, including index design, mappings, query … optimisation, aggregations, and performance tuning. Design and optimise MySQL schemas and queries for high-volume workloads, including indexing strategies and query performance analysis. Build and maintain data ingestion and processing pipelines from multiple internal and external sources. Design microservices and distributed systems supporting search, analytics, and alerting ...

designing LLM-powered workflows and data models to shipping polished front-end experiences and observability for everything you release. Requirements AI & Agentic Product Development Design and implement agentic workflows using OpenAI (Responses API, AgentKit & Agent Builder) and LangChain/LangGraph for use cases like analytics copilots, automated reporting … client data. Full-Stack Engineering. Own full-stack delivery of AI features: Backend: TypeScript/Node or edge functions, Supabase (Postgres + vector store), API design, schema design, migrations and performance tuning. Frontend: Modern TypeScript front-ends (React/or similar) for analytics dashboards, workflows and internal ...

Ireland providing specialist services to a wide range of blue-chip clients. The role We are seeking technical polyglots who enjoy both technical architectural design, hands-on coding and peer reviews, though also like the idea of the equally important social/client-facing aspect of the role. … solution architecture as well as supporting business analysts and product owners in planning and story-mapping for new development. You will act as technical design authority (TDA) for delivery of technical stories and produce technical documentation artefacts to support the delivery process. Main Responsibilities Duties will include: The design ...

tech who wants hands-on experience with cloud architectures and AI integration in a fast-paced environment. What You’ll Be Doing Feature Development & API Design You will design, develop, and maintain scalable web applications for both frontend and backend. This includes building robust RESTful APIs (using … logical and methodical approach to complex technical challenges. Version Control: Proficiency with Git and GitHub (branching, merging, and PRs). Documentation: Code commenting and design/architecture/maintenance documents. Knowledge & Experience Professional Background: 0-3 years of professional experience in full-stack development (or equivalent academic experience). ...

agents that accelerate content production while maintaining brand consistency and localization. The company is a proud member of the MACH Alliance, advocating for modern, API-first, cloud-native technologies. Role Key Responsibilities Technical Leadership - Provide technical direction throughout the software development lifecycle and aligning to internal best practices. Hands … experience). CI/CD Proficiency – Deep knowledge of the software development lifecycle, including automation best practices and CI/CD tools. Scalable System Design – Experience building and maintaining scalable, highly available systems, employing industry-standard patterns and methodologies. API Design – Familiar with REST and GraphQL API ...

looking for an experienced Developer with strong computer vision experience to design, build, and maintain a high-performance Software Development Kit (SDK) used in security-critical mobile applications. This role sits at the intersection of mobile engineering, applied computer vision, and SDK architecture , and will play a key role … delivering reusable, secure, and developer-friendly components used by third-party teams and partners. Key Responsibilities SDK Design & Development Design and develop a cross-platform mobile SDK (iOS & Android) using Swift and Kotlin Create clean, modular, well-documented SDK APIs for external developers Ensure the SDK is easy ...

services , supporting mobile applications within a large, regulated environment. Role Overview This role is hands-on and delivery-focused, requiring deep experience in RESTful API development , microservices architecture , and secure, scalable backend systems . You will work closely with engineers, security specialists, and product teams in an Agile delivery … model . Mandatory Skills & Experience Strong hands-on experience with Golang JAX-RS (Java API for RESTful Web Services) – mandatory Java, Microservices, Spring & Spring Boot Hands-on experience implementing microservices architectures REST API design and development Microservices authorization using OAuth 2.0 Java 8+, including multithreading Spring modules ...