176 to 200 of 282 API Design Jobs in the UK excluding London

where your work will have direct global impact. In this role, you will own the full data stack from ingestion through to analytics, building and maintaining scalable pipelines across API, streaming, and batch processes. You will manage cloud infrastructure on AWS with a DevOps mindset, including CI/CD, infrastructure as code, monitoring, and scaling. Working closely with engineering … and team development. Build, ship, and refine high‐quality features that directly support conservation and sustainability. What They’re Looking For: 5+ years of backend experience with Go, including API design, microservices, and database systems like PostgreSQL. Solid frontend skills with React/Next.js, TypeScript. Experience building scalable, reliable SaaS products that are cleanly architected and maintainable. Strong … knowledge of AWS, CI/CD pipelines, containerisation, and DevOps best practices. A thoughtful approach to system design, balancing performance, scalability, and simplicity. Someone who thrives in fast‐moving, early‐stage environments and enjoys solving deep technical challenges. A great collaborator who values teamwork, communication, and shared mission. What's on offer: £80-95k + meaningful Equity More ❯

In this role, you will develop and maintain server-side logic and APIs for web and mobile applications, collaborate with frontend teams to ensure seamless integration, and support database design, development, and optimization. You’ll also play an active role in improving system performance, fixing bugs, and contributing to new features. The ideal candidate will have hands-on experience … in backend development with a focus on Java and Spring Framework (or similar). Strong knowledge of RESTful API design and both SQL and NoSQL databases is essential. This role is well-suited to a backend developer who wants to grow within a collaborative engineering team that values clean, scalable code and strong development practices. Essential Skills Java More ❯

or Flask) to architect and deliver production-grade systems for cutting-edge AI products. This is a role for engineers who enjoy owning backend services end-to-end – from design to deployment and everything in between. You'll play a pivotal role in building secure, scalable APIs, optimising infrastructure, and integrating backend services directly with AI models and real … chance to define best practices from the ground up in a company that genuinely values engineering excellence. Why This Role is Great In this role, you’ll get to: Design scalable backend architecture using FastAPI and Python for high-performance workloads Build and maintain robust APIs following RESTful conventions and OpenAPI/Swagger standards Own the performance of PostgreSQL … your knowledge of CI/CD tools like GitHub Actions or Argo CD to ship high-quality code fast Be hands-on with authentication systems (OAuth2, OIDC) and secure API design Operate with a security-first mindset , using tools like GuardDuty, CloudWatch, and IAM best practices Grow in a high-trust, high-ownership culture where autonomy is valued More ❯

or Flask) to architect and deliver production-grade systems for cutting-edge AI products. This is a role for engineers who enjoy owning backend services end-to-end – from design to deployment and everything in between. You'll play a pivotal role in building secure, scalable APIs, optimising infrastructure, and integrating backend services directly with AI models and real … chance to define best practices from the ground up in a company that genuinely values engineering excellence. Why This Role is Great In this role, you’ll get to: Design scalable backend architecture using FastAPI and Python for high-performance workloads Build and maintain robust APIs following RESTful conventions and OpenAPI/Swagger standards Own the performance of PostgreSQL … your knowledge of CI/CD tools like GitHub Actions or Argo CD to ship high-quality code fast Be hands-on with authentication systems (OAuth2, OIDC) and secure API design Operate with a security-first mindset , using tools like GuardDuty, CloudWatch, and IAM best practices Grow in a high-trust, high-ownership culture where autonomy is valued More ❯

hands-on Full-Stack Developer to be part of that journey. You'll be joining a small, collaborative engineering team working on new feature development, front-end modernisation, and API evolution. Expect a culture that values curiosity, autonomy, and experimentation - where developers are encouraged to explore new tools and ideas. Tech Environment React, Next.js, TypeScript, Tailwind .NET/C# …/Postgres Modern development tooling and automation (e.g. code assistants, DevOps pipelines) What You'll Bring Strong JavaScript/TypeScript experience (React or Next.js preferred) Understanding of .NET and API design Exposure to AWS or cloud-based environments Enthusiasm for learning, adapting, and collaborating A creative, solution-oriented mindset Why Join Work on a genuinely modern SaaS rebuild More ❯

hands-on Full-Stack Developer to be part of that journey. You'll be joining a small, collaborative engineering team working on new feature development, front-end modernisation, and API evolution. Expect a culture that values curiosity, autonomy, and experimentation - where developers are encouraged to explore new tools and ideas. Tech Environment React, Next.js, TypeScript, Tailwind .NET/C# …/Postgres Modern development tooling and automation (e.g. code assistants, DevOps pipelines) What You'll Bring Strong JavaScript/TypeScript experience (React or Next.js preferred) Understanding of .NET and API design Exposure to AWS or cloud-based environments Enthusiasm for learning, adapting, and collaborating A creative, solution-oriented mindset Why Join Work on a genuinely modern SaaS rebuild More ❯

hands-on Full-Stack Developer to be part of that journey. You'll be joining a small, collaborative engineering team working on new feature development, front-end modernisation, and API evolution. Expect a culture that values curiosity, autonomy, and experimentation - where developers are encouraged to explore new tools and ideas. Tech Environment React, Next.js, TypeScript, Tailwind .NET/C# …/Postgres Modern development tooling and automation (e.g. code assistants, DevOps pipelines) What You'll Bring Strong JavaScript/TypeScript experience (React or Next.js preferred) Understanding of .NET and API design Exposure to AWS or cloud-based environments Enthusiasm for learning, adapting, and collaborating A creative, solution-oriented mindset Why Join Work on a genuinely modern SaaS rebuild More ❯

hands-on Full-Stack Developer to be part of that journey. You'll be joining a small, collaborative engineering team working on new feature development, front-end modernisation, and API evolution. Expect a culture that values curiosity, autonomy, and experimentation - where developers are encouraged to explore new tools and ideas. Tech Environment React, Next.js, TypeScript, Tailwind .NET/C# …/Postgres Modern development tooling and automation (e.g. code assistants, DevOps pipelines) What You'll Bring Strong JavaScript/TypeScript experience (React or Next.js preferred) Understanding of .NET and API design Exposure to AWS or cloud-based environments Enthusiasm for learning, adapting, and collaborating A creative, solution-oriented mindset Why Join Work on a genuinely modern SaaS rebuild More ❯

plus excellent benefits Cheshire (hybrid) Shape the next generation of software architecture for critical medical services, with worldwide reach and millions of customers benefiting from the new technology. Design and build multi-tenant SaaS solutions, working closely with engineering squads, product owners and the senior management team, to create a first class architecture. Full application, database, security architecture. Leveraging …/large environments Experience designing and delivering cloud platform solutions, ideally with the AWS well architected framework Domain driven architecture and hexagonal architecture knowledge and experience Strong background in API design, multi-tenant applications, data structures, design patterns, testing methodologies.. Get in touch for a more detailed spec please MandyKettle@unitingambition.com Hybrid working, offices are very smart More ❯

you enjoy owning features across the stack, shaping user experience, and ensuring high quality delivery, this environment will suit you. What You Will Do Deliver full stack features from design to release * Build responsive front end applications using a modern JS framework (React preferred) * Develop back end services and APIs * Work closely with design and product on customer … Front end: React or Vue or Angular * Back end: Node or Go or Python or Java * Experience with cloud environments (AWS preferred) * Strong understanding of component based UI development, API design and modern CI CD * A product mindset and pride in shipping well engineered features Why Join Modern stack, ownership and room to grow * Supportive, practical engineering culture More ❯

given day you'll likely... Work collaboratively across the company to continuously refine how our platform can create the greatest impact, scale efficiently, and operate reliably for our users Design, develop, and maintain features for the MOPO Platform that enhance functionality and user experience Optimise database performance and ensure efficient data storage and retrieval for our growing network Build … following experience... Strong proficiency in Python and Django for backend development Good working knowledge of (or similar Javascript framework, e.g. React) In-depth knowledge of MariaDB and SQL RESTful API design and development Version control systems (e.g., Git) and CI/CD pipelines Web security best practices and performance optimization Server deployment and maintenance (e.g. nginx, cron, package More ❯

a single intelligent platform. We’ve been doing this since 2002, and today we’re driving forward a major migration to Azure, combining legacy .NET applications with new Blazor, API and data-driven solutions. The Role We’re looking for a skilled .NET Developer to join our small, senior-led team. This is a hands-on role where you … ll be involved in everything from legacy migration to greenfield product development. You’ll work closely with our Technical Director and senior developers to design, build, and deploy robust applications that power personalised customer communications across the travel sector. Key Responsibilities Develop and maintain applications in C#, .NET, SQL Server, and Blazor Migrate older Web Forms systems into modern … Azure-based solutions Design and consume APIs using Entity Framework Core Work across front-end and back-end components (HTML, CSS, JavaScript) Collaborate on architecture, planning and continuous deployment pipelines Contribute to R&D projects, driving new innovation About You You’re a self-sufficient, full-stack developer who loves to solve problems, modernise systems, and build high-quality More ❯

team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯

team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯

team of engineers, helping them grow technically and professionally Owning delivery of critical platform services that power Suits Me's financial products Overseeing the full development lifecycle, from architectural design and planning to deployment, observability, and continuous improvement Establishing engineering standards, including code quality, CI/CD, testing, and documentation practices Driving adoption of best practices around API design, data modelling, and event-driven architectures Partnering with Product, Platform, and Security teams to ensure our systems are robust, scalable, and compliant Managing technical priorities, resource planning, and delivery schedules in line with strategic goals Contributing to longer-term technology strategy and roadmap evolution What you’ll bring to Suits Me Proven experience managing or technically leading … a backend or platform engineering team Strong foundation in modern backend technologies - ideally including Node.js/TypeScript, containers, and serverless architectures Deep understanding of system design, distributed systems, and operational reliability Familiarity with cloud-native development (AWS preferred) Excellent communication skills and the ability to align technical delivery with business objectives A collaborative, supportive leadership style that promotes autonomy More ❯

Experience deploying applications in cloud environments using containers and orchestration tools. Proficiency in the Python ecosystem for backend development and AI integration. Strong database knowledge (SQL and NoSQL) and API design/integration. Familiarity with CI/CD pipelines and modern DevOps workflows. Understanding of authentication, authorization, and web security best practices. Nice-to-haves: Experience deploying ML More ❯

Solution Architect (Software) £75,000 per annum Remote VIQU have partnered with a leading financial services organisation who are seeking a Solution Architect to lead the design of an Azure-based platform, integrating data and processes from three separate systems. The position will play a key part in designing scalable, secure, and occasionally bespoke systems that support critical business … Working closely with development teams and senior stakeholders, the role will shape the technical direction of the organisation's core systems. Job Duties of the Solution Architect: Lead solution design across multiple core systems and applications focused on transactional, financial & case management. Work closely with senior (Head of to C-suite) to shape the technical direction of the platform. … using APIs, microservices, and event-driven patterns (Kafka). Manage multiple projects simultaneously. Produced well-articulated documentation. Ensure architectural governance, scalability, and security across all projects. Champion modern software design practices within Agile delivery teams. Balance new technology adoption with legacy system integration. Key Requirements of the Solution Architect: Proven experience as a Solution Architect, ideally focusing on case More ❯

consulting team. This role is central to shaping enterprise-scale AI transformations, combining deep technical expertise with strategic client engagement. As a Solutions AI Architect, you will: Lead the design and delivery of AI and cloud-native architectures, including Generative AI, NLP, and LLM solutions. Act as a trusted advisor to senior stakeholders, guiding AI roadmaps and strategy. Translate … with internal teams and partners to deliver world-class AI platforms. Key skills and Experience Demonstrated experience as a Solution Architect delivering cloud-based applications. Strong grasp of system design principles, project governance, and SDLC best practices. Proven expertise in cloud-native architecture, ideally within the Microsoft Azure ecosystem. Solid understanding of AI and machine learning solution patterns. Deep … knowledge of API design, data integration, and security standards (OAuth2, SSO, encryption). Ability to create clear, well-structured architectural documentation, including diagrams and roadmaps. Excellent communication and stakeholder management skills, with the ability to bridge business objectives and technical delivery. Desirable Skills Background in full-stack or backend engineering, using technologies such as Python, TypeScript, or .NET. More ❯

We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? Join our Digital & Data team working alongside product, design … work with the following technologies to ensure scalable, high-performance applications: .NET (including Entity Framework 6 and Core, ASP.NET MVC and MVC Core) CSS, HTML, JavaScript/Typescript REST API design Microsoft SQL Server, MySQL, Postgres AWS What you can expect Work to agile best practices and cross-functionally with multiple teams and stakeholders. You'll be using More ❯

We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? Join our Digital & Data team working alongside product, design … work with the following technologies to ensure scalable, high-performance applications: .NET (including Entity Framework 6 and Core, ASP.NET MVC and MVC Core) CSS, HTML, JavaScript/Typescript REST API design Microsoft SQL Server, MySQL, Postgres AWS What you can expect Work to agile best practices and cross-functionally with multiple teams and stakeholders. You'll be using More ❯

We believe in the power of ingenuity to build a positive human future. We challenge where it matters and own the outcome. We combine strategic thinking, customer-centric service design, and agile engineering practices to accelerate innovation in a tech-driven world. Why consider joining our Digital & Data community? ?? Join our Digital & Data team working alongside product, design … work with the following technologies to ensure scalable, high-performance applications: .NET (including Entity Framework 6 and Core, ASP.NET MVC and MVC Core) CSS, HTML, JavaScript/Typescript REST API design Microsoft SQL Server, MySQL, Postgres AWS What you can expect ?? Work to agile best practices and cross-functionally with multiple teams and stakeholders. You'll be using More ❯

As Solutions Architect, you’ll act as a bridge between engineering, business, and clients, blending deep technical expertise with a sharp understanding of customer needs. Expect to lead solution design, drive proof-of-concepts, and collaborate directly with senior stakeholders on high-impact projects. Key skills as a Solutions Architect: Proven background in software engineering with a strong grasp … of API design, cloud architecture, and scalable system design. Hands-on coding experience with modern technologies including Typescript (Node.js/React), AWS, Kubernetes, GraphQL, Kafka. Track record of working directly with clients on technical solutions, RFPs, and complex integrations. Ability to build prototypes and proof-of-concepts that validate ideas and showcase value. Expertise in CRMs, e-commerce More ❯

As Solutions Architect, you’ll act as a bridge between engineering, business, and clients, blending deep technical expertise with a sharp understanding of customer needs. Expect to lead solution design, drive proof-of-concepts, and collaborate directly with senior stakeholders on high-impact projects. Key skills as a Solutions Architect: Proven background in software engineering with a strong grasp … of API design, cloud architecture, and scalable system design. Hands-on coding experience with modern technologies including Typescript (Node.js/React), AWS, Kubernetes, GraphQL, Kafka. Track record of working directly with clients on technical solutions, RFPs, and complex integrations. Ability to build prototypes and proof-of-concepts that validate ideas and showcase value. Expertise in CRMs, e-commerce More ❯

hands-on Full-Stack Developer to be part of that journey. You'll be joining a small, collaborative engineering team working on new feature development, front-end modernisation, and API evolution. Expect a culture that values curiosity, autonomy, and experimentation - where developers are encouraged to explore new tools and ideas. Tech Environment React, Next.js, TypeScript, Tailwind .NET/C# …/Postgres Modern development tooling and automation (e.g. code assistants, DevOps pipelines) What You'll Bring Strong JavaScript/TypeScript experience (React or Next.js preferred) Understanding of .NET and API design Exposure to AWS or cloud-based environments Enthusiasm for learning, adapting, and collaborating A creative, solution-oriented mindset Why Join Work on a genuinely modern SaaS rebuild More ❯

collaborate directly with key business stakeholders, translating their needs into technical requirements and delivering elegant, scalable solutions that make a real impact. What You’ll Do Work closely with design, product, and data teams to translate stakeholder goals into functional and technical requirements , ensuring clarity between business need and technical delivery. Design and develop intelligent, adaptive web platforms … stack development using React, TypeScript/JavaScript, and modern cloud environments (AWS, GCP, or similar). Experience working with headless CMS platforms such as Storyblok, and strong understanding of API design (REST/GraphQL). Proven ability to collaborate with non-technical stakeholders , distilling abstract ideas into actionable plans and measurable outcomes. Familiarity with AI-enhanced development environments More ❯