51 to 75 of 129 API Design Jobs in England

Cloud SRE

Hiring Organisation
Deep Sea Electronics Ltd
Location
Hunmanby, England, United Kingdom
have hands-on experience building monitoring solutions, CI/CD pipelines, and cloud infrastructure, along with the ability to communicate effectively across requirements, design, development, and testing. You’ll primarily contribute to DSE’s IoT platform (DSE WebNet), alongside developing supporting tools and business systems. Our products operate … systems, and cloud-native practices. Key Responsibilities: Capture software and infrastructure requirements from project inception Ensure platform reliability, security, safety, and compliance standards Design and maintain monitoring, alerting, and dashboards (Grafana, OpenTelemetry) Own SLOs, SLIs, and error budgets for the DSE WebNet IoT platform Provision and manage cloud infrastructure ...

Cloud SRE

Hiring Organisation
Deep Sea Electronics Ltd
Location
Mansfield, England, United Kingdom
have hands-on experience building monitoring solutions, CI/CD pipelines, and cloud infrastructure, along with the ability to communicate effectively across requirements, design, development, and testing. You’ll primarily contribute to DSE’s IoT platform (DSE WebNet), alongside developing supporting tools and business systems. Our products operate … systems, and cloud-native practices. Key Responsibilities: Capture software and infrastructure requirements from project inception Ensure platform reliability, security, safety, and compliance standards Design and maintain monitoring, alerting, and dashboards (Grafana, OpenTelemetry) Own SLOs, SLIs, and error budgets for the DSE WebNet IoT platform Provision and manage cloud infrastructure ...

Senior Software Engineer

Hiring Organisation
GlobalLogic
Location
City of London, London, United Kingdom
GlobalLogic, a Hitachi Group Company and a leader in digital engineering. We help brands across the globe design and build innovative products, platforms, and digital experiences for the modern world. By integrating experience design, complex engineering, and data expertise - we help our clients imagine what’s possible … Initially 6-9 months About the role: Experience with C#/.NET, other additional languages highly desirable ie Java, Python React/TypeScript RESTful API design Apache Kafka PostgreSQL Git/GitHub workflows Automated testing Experience with Kubernetes deployments; able to build CI/CD pipelines. Observability logs ...

Senior Full-Stack Engineer

Hiring Organisation
Verifi
Location
London, England, United Kingdom
full-stack architecture—understanding patterns, quality standards, and modern best practices for both client and server-side development. Collaborate cross-functionally with Product Management, Design, QA, and Customer Success to understand requirements and deliver features in iterative cycles. Contribute to designing and implementing products that are easily monitored, maintained … backend, integrating quality into every build. Participate in discovery and experimentation, using insights from Product and Customer Success to understand customer needs. Contribute to API design, database schema development, and server-side logic implementation. What You Bring 5+ years building modern web applications with Angular for the frontend. ...

Senior Full Stack Engineer

Hiring Organisation
Trust In SODA
Location
City of London, London, United Kingdom
people actually love to use? We are representing a globally recognized digital product studio that sits at the sweet spot of high-end aesthetic design and hardcore engineering. They're looking for a Senior & Lead Full-stack Engineer to join the growing function. This isn't a "ticket-taking … robust, scalable backend. What You Bring to the Table React Node/TypeScript/JavaScript Cloud: AWS, Azure, or GCP. APIs: API design and integration (REST & GraphQL). AI Tooling: Confident using AI-boosted environments to ensure quality (Claude or similar). The Cherry ...

Senior C# Developer

Hiring Organisation
Adria Solutions
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£85,000
exciting opportunity to work on challenging projects, influence architecture decisions, and help shape the future of our software solutions. What Youll Do Design, develop, and maintain high-quality C# applications across our platform Work on AI-enabled solutions and integrate machine learning capabilities where relevant Ensure applications are secure … design and adhere to best practices in cybersecurity Collaborate with cross-functional teams including product, QA, and DevOps Participate in code reviews, mentoring junior developers, and promoting best practices Solve complex technical problems and contribute to the overall architecture strategy What Were Looking For Essential: Strong experience with C# ...

Engineering Manager

Hiring Organisation
TechByte Talent Ltd
Location
London Area, United Kingdom
execution. Requirements: Proven experience managing engineering teams in a product-focused environment (startups or scale-ups preferred). Leading cross-functional teams (Product, Design, Engineering, Operations). Full-stack technical proficiency: able to review, unblock, and guide frontend and backend development. Strong software engineering fundamentals, including API design ...

Senior Fullstack Engineer (Backend)

Hiring Organisation
Ronald James
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £95,000 per annum
Full Stack (Backend) Engineer who thrives on building clean, scalable systems quickly. You’ll play a key role in shaping our backend architecture—from API design and data pipelines to job processing and observability. What You’ll Do Design and build robust backend systems Architect scalable infrastructure … processing, analytics, and event tracking Build internal tooling for rate limiting, quotas, and authentication Design, develop, and maintain APIs and backend services Collaborate closely with product, design, and CX to deliver exceptional features Optimize for performance, security, and scalability Write clean, maintainable, efficient code Stay current with emerging ...

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£55,000
Stack Developer - Remote - Competitive Salary I'm working with an exciting organisation that is looking to appoint a Senior Full Stack Developer to help design and deliver secure, cloud-native applications within a modern Microsoft and Azure ecosystem. This is an excellent opportunity for an experienced full-stack engineer … maintaining unit and frontend tests (NUnit and ViTest) Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Ensuring all development aligns with OWASP security best practices Tech Stack & Environment Core technologies: .NET 10/ASP.NET Core Angular 21 (mandatory) DevExpress ...

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent
Salary
£55,000
Stack Developer - Remote - Competitive Salary I'm working with an exciting organisation that is looking to appoint a Senior Full Stack Developer to help design and deliver secure, cloud-native applications within a modern Microsoft and Azure ecosystem. This is an excellent opportunity for an experienced full-stack engineer … maintaining unit and frontend tests (NUnit and ViTest) Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Ensuring all development aligns with OWASP security best practices Tech Stack & Environment Core technologies: .NET 10/ASP.NET Core Angular 21 (mandatory) DevExpress ...

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent
Salary
£55,000
Stack Developer - Remote - Competitive Salary I'm working with an exciting organisation that is looking to appoint a Senior Full Stack Developer to help design and deliver secure, cloud-native applications within a modern Microsoft and Azure ecosystem. This is an excellent opportunity for an experienced full-stack engineer … maintaining unit and frontend tests (NUnit and ViTest) Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Ensuring all development aligns with OWASP security best practices Tech Stack & Environment Core technologies: .NET 10/ASP.NET Core Angular 21 (mandatory) DevExpress ...

Senior Software Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
Salary
£55,000
Stack Developer - Remote - Competitive Salary I'm working with an exciting organisation that is looking to appoint a Senior Full Stack Developer to help design and deliver secure, cloud-native applications within a modern Microsoft and Azure ecosystem. This is an excellent opportunity for an experienced full-stack engineer … maintaining unit and frontend tests (NUnit and ViTest) Contributing to CI/CD pipeline improvements and secure deployment practices Participating in architecture and technical design reviews Ensuring all development aligns with OWASP security best practices Tech Stack & Environment Core technologies: .NET 10/ASP.NET Core Angular 21 (mandatory) DevExpress ...

Senior Full Stack Engineer

Hiring Organisation
Space Executive
Location
London Area, United Kingdom
shaping the future of the product. What you’ll be doing: • Designing and building scalable microservices using Node.js (Nest.js) and React • Driving an API-first architecture with strong focus on service-to-service communication and contract testing • Owning features end-to-end, from idea to production with a strong … What they’re looking for: • Strong experience building distributed systems/microservices architectures • Deep hands-on expertise with Node.js and React • Solid understanding of API design, event-driven systems, and contract testing • Experience working in fast-paced, ambiguous environments • Passion for automation, clean code, and solving real customer ...

Data Architect

Hiring Organisation
Damia Group Ltd
Location
Chiswick, London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £90000/annum
Align data architecture with security, compliance, and data governance requirements Lead the evolution of technical architecture documentation, models, and decision records Conduct architecture and design reviews with cross-functional teams Guide teams in the adoption of best practices in API design, modularity, cloud-native patterns, and event … driven systems Recommend data management best practices, covering data flows, architecture patterns, retention, archival, and purging strategies Coach and mentor engineers on data design, refactoring, and architectural reasoning Essential skills and experience: Proven experience designing and scaling enterprise-grade cloud data platforms (AWS preferred) Deep experience with AWS, Databricks ...

Lead Developer

Hiring Organisation
Oscar Technology
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
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 ...

Lead Developer

Hiring Organisation
Oscar Technology
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
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 ...

Lead Developer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Warrington, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
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 ...

Lead Developer

Hiring Organisation
Oscar Technology
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £80,000 per annum
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 ...

API Engineer

Hiring Organisation
Halian Technology Limited
Location
Warwick, Warwickshire, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
fast-growing, award-winning software company that delivers end-to-end cloud solutions for practices and businesses. They are looking for an API Engineer to join the team, where you'll be building API infrastructure that enables their product, third party integrations, their users and AI services … interact with their established product portfolio. Key Responsibilities: Design and implement RESTful APIs that expose product capabilities to AI services and third-party integrations Build production-grade APIs using C# .NET, SQL, and Azure services Implement authentication and authorization using OAuth and modern security patterns Write clean, maintainable, well ...

React Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
data synchronisation strategies. * Ensure front-end performance is optimised through techniques such as code splitting, virtualisation, bundle optimisation, and rendering efficiency improvements. * Collaborate on API design through a Backend-for-Frontend (BFF) approach, ensuring clean, predictable data contracts. * Embed security-by-design principles into all front … delivering complex, enterprise-grade front-end applications from build through to production. * Strong understanding of front-end architecture, including scalable project structure, reusable component design, and maintainable code patterns. * Advanced TypeScript skills, including typing API responses, shared models, and robust component interfaces. * Experience working with modern state management ...

Staff Software Engineer

Hiring Organisation
Classic Football Company Ltd
Location
Manchester Area, United Kingdom
collaborative Agile environment. You will take ownership of complex Magento and front-end initiatives, influence technical direction, and work closely with Product, Design, and Operations to ensure our platforms remain scalable, secure, and high-performing. Location: Hybrid/Remote flexibility Hours: The role is a full-time position … Responsibilities: Lead the design, development, and maintenance of Magento 2 (PHP) features, modules, and integrations, including REST and GraphQL APIs. Drive front-end development using React (JavaScript/TypeScript), consuming Magento GraphQL endpoints to deliver high-quality customer experiences. Own technical solutions from concept through to production, ensuring quality ...

Software Engineer

Hiring Organisation
NearTech Search
Location
City of London, London, United Kingdom
agility with the backing of a well-established business. The Senior Back End Developer will... take ownership of backend engineering for a new API-first data intelligence platform. Role Highlights Design and build scalable backend systems from a true greenfield starting point Define architecture, balancing rapid delivery with … long-term scalability Develop API-first services for data-heavy, enterprise-grade applications Embed observability, metrics, and performance tracking from day one Collaborate within a small, high-autonomy team shaping a new product You Will Need Extensive backend development experience within data-driven B2B environments Strong programming skills ...

Full Stack Developer .NET React

Hiring Organisation
Young's Employment Services Ltd
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
deployment, Azure Service Bus, Blob Storage SQL Server T-SQL, EF Core migrations, query optimisation Azure DevOps Repos, Boards, Pipelines, Test Plans REST API design and OpenAPI/Swagger documentation This is an exciting time to be joining our client with salary will be based on experience ...

Principal Engineer

Hiring Organisation
Arrive
Location
City Of London, England, United Kingdom
technical initiatives across multiple teams Experience designing scalable, high-performance systems Experience working with legacy or monolithic systems and modernising them Strong understanding of API design and distributed systems Knowledge of modern engineering practices, including CI/CD and DevSecOps Understanding of secure development practices such as OWASP ...

Junior Back-end Engineer

Hiring Organisation
ivee
Location
City of London, London, United Kingdom
maintain server-side logic using modern backend frameworks (e.g. Node.js, Python, Go) Work with APIs — designing, integrating, and maintaining RESTful endpoints Support database design and optimisation (e.g. PostgreSQL, MongoDB) Collaborate with front-end and product teams to deliver full-stack features Write clean, testable, and maintainable code Help improve ...