1 to 25 of 62 Remote/Hybrid API Design Jobs in the UK

London office About The Client: Our client is a rapidly growing Infrastructure-as-a-Service (IaaS) provider driving digital transformation. Key Responsibilities: Architecture & System Design Design and evolve scalable backend services and product components. Make sound architectural decisions across APIs, services, and data layers. Lead delivery from design … high coding standards and test coverage. Contribute to code reviews and documentation. Mentor engineers and support technical growth. Collaboration Work closely with Product and Design to deliver scalable solutions. Communicate technical trade-offs and manage cross-team dependencies. Essential skills and requirements: Strong experience building production backend systems ...

development aligns with OWASP secure coding standards Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Collaborating with UI/UX teams using Figma prototypes Maintaining high-quality technical documentation Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core … Entity Framework Core RESTful API design/OpenAPI/Swagger Angular 21 (mandatory) TypeScript/RxJS DevExpress DevExtreme v25 (mandatory) Microsoft Azure (App Services, SQL, Storage) Azure Entra ID Azure Key Vault Infrastructure as Code (Bicep preferred) CI/CD pipelines (Azure DevOps or equivalent) Bitbucket (Git) What ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

Build agents that can verify the quality of the code and identify error patterns. Hypothesize on steps in the software engineering cycle (prototyping, architecture design, API design, production implementation, launch, experiments, monitoring, operational maintenance) and evaluate model capabilities on them Design verification mechanisms that can automatically … experience. Strong expertise in building full-stack applications and deploying scalable, production-grade software using modern languages and tools. Deep understanding of software architecture, design, development, debugging, and code quality/review assessment. Excellent oral and written communication skills for clear, structured evaluation rationales. Engagement Details: Commitment : flexible engagement ...

developer to support the development and deployment of the AWS Professional Supply Chain Command Centre solution. This role will focus on backend service development, API design, event tracking, and analytics integration across supply chain flows involving suppliers, manufacturing, and distributors. Location: London, UK (Hybrid) Contract role … experience in AWS backend development (Node.js, Lambda, ECS, Step Functions). Strong understanding of supply chain processes and event-driven architectures. Experience with API design, CI/CD pipelines, and AWS services like Neptune, RDS, DynamoDB, and S3 Familiarity with analytics tools and KPI frameworks for supply chain ...

Months Any other working conditions - travel/on call/shifts The Role We are seeking highly skilled Senior Java Spring Boot Developers to design, build, and optimize enterprise-grade applications and microservices. The ideal candidate has deep hands-on experience with Java, Spring Boot, REST APIs, microservices architecture … Avoid repetition) Develop and enhance backend applications using Java 8/11/17, Spring Boot, Spring MVC, Spring Data, and Spring Security. Design and implement microservices with strong emphasis on scalability, resilience, and performance. Build REST APIs and integrate with internal/external systems. Implement asynchronous processing, messaging ...

venture backed by the strength and stability of an established business. Key Responsibilities End-to-end development of high-quality, scalable SaaS platforms from design through deployment and maintenance. Architect and implement robust backend services primarily using Python and PostgreSQL. Develop and maintain responsive, performant front-end applications with … Provide technical mentorship and leadership to development teams, fostering best practices in coding, testing, and deployment. Participate in code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast ...

comfortable identifying problems and driving solutions independently. You will take end-to-end ownership of features, contributing across both backend and frontend to design, build, and deliver high-quality product experiences. In this role, you will primarily work on Purchase Warrior, helping to develop and scale the platform … platform used by thousands of businesses across the UK Opportunities for growth as the engineering team and platform continue to expand Key Responsibilities Design, build, and maintain scalable backend services and APIs Develop frontend features to deliver complete product functionality Take end-to-end ownership of features from design ...

backend microservices using TypeScript, Node.js, and Express, with MongoDB for persistent storage and Redis for caching, session management, and pub/sub messaging. Design scalable, well-bounded services that support the throughput and reliability demands of a live-service MMO: player accounts, social systems, marketplace, mail, inventory, and platform … orchestration and deployment. Establish deployment practices that support rapid iteration without compromising stability. Make architectural decisions about service boundaries, data models, caching strategies, and API design that balance immediate delivery needs with long-term scalability. Establish monitoring, alerting, and incident response practices using Grafana and Uptime Kuma ...

that integrate development finance datasets (e.g. OECD, IATI, World Bank, IMF, WHO, etc.) into a unified knowledge graph. Scaling the Knowledge Graph, including schema design, data integration, and optimisations. Developing the data quality framework, implementing provenance tracking, quality indicators, coverage metrics, and automated testing so that every data point … Spanner through the Data Commons infrastructure, alongside BigQuery for internal analytical workloads and MySQL for supporting services. Key responsibilities: Data infrastructure and pipelines Design, build, and maintain open-source ETL/ELT pipelines that ingest, clean, transform, and deliver development finance data from multiple sources. Contribute to data modelling ...

suited to an experienced consultant who enjoys setting technical direction, mentoring engineers, and acting as a trusted technical partner to clients. Responsibilities Lead the design and delivery of full stack JavaScript solutions Set technical direction, standards, and best practices across projects Remain hands-on, contributing to critical areas … Required Experience Extensive commercial experience with JavaScript/TypeScript Strong front-end experience with React (or equivalent) Strong back-end experience with Node.js and API design Proven experience in a Lead/Tech Lead/Senior Consultant role Experience designing and delivering scalable systems Strong stakeholder management ...

Software Engineer | Remote | Django | SaaS 📍 UK Remote (Quarterly team meet-ups) 💰 £60,000–£70,000 (DOE) Tech Stack: Python - Django Authentication methods - OAuth2, JWT, API keys AWS SR2 are partnering with a growing SaaS platform used by organisations across global markets. They are looking for a Senior Software Engineer … with strong API integration experience to help expand and scale their platform. This is a backend-focused role where you will design and build integrations that connect the platform with a wide range of external systems, while helping evolve both their public API and internal integration framework. ...

pure DevOps role. You will spend significant time on platform engineering, CI/CD, and infrastructure – but you will also contribute to application development, API design, and integration work. We need a generalist who leans platform, not an infrastructure specialist who only touches pipelines. What … fast diagnosis and recovery. • Define and track availability and reliability targets; drive post-incident review and preventative improvements. Application Development • Contribute to backend development: API endpoints, service logic, database schema, and integration code. This is a building role, not only an operations role. • Design and implement integration patterns ...

MUST apply via this advert ** We are looking for a AI engineer someone that is capable of deploying and maintaining infrastructure: Python (must) API design and frameworks FastAPI ideally (but Flask and Django, in said order, would indicate this) Experience with AWS ideally (Azure or GCP would … frameworks CI/CD GitHub actions (GitLab, TeamCity, CircleCI) This is data related software development, responsible for whole lifecycle and developed end point for API data pipeline. Must be able to write infrastructure code in terraform or AWS but can be taught. We design and develop across ...

MUST apply via this advert ** We are looking for a AI engineer someone that is capable of deploying and maintaining infrastructure: Python (must) API design and frameworks FastAPI ideally (but Flask and Django, in said order, would indicate this) Experience with AWS ideally (Azure or GCP would … frameworks CI/CD GitHub actions (GitLab, TeamCity, CircleCI) This is data related software development, responsible for whole lifecycle and developed end point for API data pipeline. Must be able to write infrastructure code in terraform or AWS but can be taught. We design and develop across ...

collaboration in a fast-moving startup environment. The RoleTechnical Strategy & Leadership Work alongside the founder to define and evolve the technical roadmap Lead architectural design and critical technology decisions Champion engineering best practices, code quality, and technical excellence Mentor, coach, and grow engineers at all levels Foster a culture … ownership, collaboration, and innovation Backend Architecture & Development Architect, build, and scale backend services and RESTful APIs Design, optimise, and maintain MongoDB database solutions Improve system reliability, performance, and scalability Resolve complex production issues with robust solutions Implement microservices and modern backend patterns Collaboration & Delivery Partner with Product, Design ...

support junior and senior engineers Conduct code reviews and uphold engineering best practices Backend Engineering Build and maintain scalable backend services and RESTful APIs Design and optimise MongoDB database solutions Improve and maintain existing backend infrastructure Troubleshoot production issues and implement robust solutions Collaboration & Delivery Work closely with cross … have experience with: MongoDB (data modelling, indexing, aggregation, performance tuning) Node.js and the wider JavaScript/TypeScript ecosystem Express.js and/or Fastify RESTful API design AWS or similar cloud platforms Microservices architecture Testing frameworks (Vitest, Jest, Mocha, etc.) CI/CD pipelines & DevOps practices GitHub workflows Observability ...

development tools across your team Foster culture of learning, experimentation, and knowledge sharing Work with Head of Engineering on architecture, partner with product and design teams About You You're a strong senior engineer ready to lead a team but who still loves writing code. You have solid technical … Strong expertise in Python backend development with async patterns Production experience with modern frontend frameworks (React, TypeScript) Solid understanding of distributed systems architecture and API design Experience with container orchestration, CI/CD, and cloud platforms Experience with NoSQL databases and data modelling Daily user of AI-assisted ...

locally) c£55,000 to £65,000 per year Pension, Bonuses, Training and Development, etc. Skills and Experience: Expertise in C#, .NET Core, REST API design and backend architecture. Strong SQL skills with the ability to create performant, reliable database logic. Strong understanding of ORM patterns, data mapping … product and offshore teams. Experience integrating services into CI/CD pipelines (GitHub Actions or Azure DevOps). Familiarity with clean architecture, domain-driven design, or similar engineering patterns. Understanding of containerisation workflows (Docker) and AKS operational concepts. Mentoring experience or leadership within engineering teams. Exposure to API ...

locally) c£55,000 to £65,000 per year Pension, Bonuses, Training and Development, etc. Skills and Experience: Expertise in C#, .NET Core, REST API design and backend architecture. Strong SQL skills with the ability to create performant, reliable database logic. Strong understanding of ORM patterns, data mapping … product and offshore teams. Experience integrating services into CI/CD pipelines (GitHub Actions or Azure DevOps). Familiarity with clean architecture, domain-driven design, or similar engineering patterns. Understanding of containerisation workflows (Docker) and AKS operational concepts. Mentoring experience or leadership within engineering teams. Exposure to API ...

Computer Science, Mathematics, Software Engineering, Physics, and Data Science. You write and review production-grade Python and SQL, and have strong command of REST API design and integrations. You excel at breaking down complex problems and making quick, well-informed decisions even under pressure. You build strong relationships ...

manual test strategies Documenting architectural decisions (ADRs) and maintaining clear technical communication Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (offline-first mobile design) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights … years working within fast-paced, "fail-fast" delivery environments At least 2 years in a leadership position Strong expertise in modern .NET and API design Proven Angular experience (v15+) Hands-on Azure architecture and deployment experience Experience implementing Infrastructure as Code (Bicep preferred) Experience integrating Azure Entra ...

manual test strategies Documenting architectural decisions (ADRs) and maintaining clear technical communication Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (offline-first mobile design) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights … years working within fast-paced, "fail-fast" delivery environments At least 2 years in a leadership position Strong expertise in modern .NET and API design Proven Angular experience (v15+) Hands-on Azure architecture and deployment experience Experience implementing Infrastructure as Code (Bicep preferred) Experience integrating Azure Entra ...

manual test strategies Documenting architectural decisions (ADRs) and maintaining clear technical communication Tech Stack & Experience Core technologies: .NET 10/ASP.NET Core Web API Entity Framework Core with Azure SQL .NET MAUI (offline-first mobile design) Microsoft Azure (App Services, Azure SQL, Blob Storage, Key Vault, Application Insights … years working within fast-paced, 'fail-fast' delivery environments At least 2 years in a leadership position Strong expertise in modern .NET and API design Proven Angular experience (v15+) Hands-on Azure architecture and deployment experience Experience implementing Infrastructure as Code (Bicep preferred) Experience integrating Azure Entra ...