1 to 25 of 47 API Design Jobs in the North of England

operating from 52 countries. Founded in 1976, HCL is one of India's original IT garage start-ups. For more on HCL, please visit www.hcl.com Job Title: Technical Architect – API Location: Edinburgh, UK Experience Level: 15+ years Mode of Hiring- Permanent Position Job Description- Looking for a Technical Architect that shall define, develop and maintain the Application Programming Interfaces … for specific business functional/technical areas and provide high-level roadmaps for the implementation of the robust API solutions, aligning to a common technical direction ensuring accomplishment of the roadmaps. Key Responsibilities- Design and define API architecture and standards. Collaborate with development teams to implement scalable API solutions. Ensure API security, reliability, and performance. … Establish and enforce best practices for API development. Evaluate and select appropriate technologies and tools. Document architectural decisions and API specifications. Mentor and guide software engineers on API-related topics. Review and improve existing API implementations. Work with stakeholders to gather requirements and align API strategy. Monitor API usage and optimize for scalability and More ❯

on engineer who enjoys leading by example , thrives in agile environments , and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testingof secure, scalable systems using Java with modern front-end frameworks (e.g., React) Architect and maintainAPIs, data pipelines, and cloud-native solutions(AWS, Azure, private cloud) Drive … Skills & Experience Deep expertise in Java, with strong full-stack engineering skills Proven experienceleading teams or projectsat a senior/principal level Strong knowledge ofsystem architecture, cloud solutions, and API design Familiarity withDevOps tools and automation(CI/CD, containers, IaC) Track record of deliveringsecure, production-grade systemsin agile teams Excellent stakeholder engagement, influencing, and communication skills Desirable … you. Qualifications Deep expertise in Java, with strong full-stack engineering skills Proven experienceleading teams or projectsat a senior/principal level Strong knowledge ofsystem architecture, cloud solutions, and API design Familiarity withDevOps tools and automation(CI/CD, containers, IaC) Why Is This a Great Opportunity Flexitime 37.5 hrs/week structured your way + remote options More ❯

POWWR are looking for an experienced Technical Lead to join our UK engineering team and help drive the design, development, and delivery of POWWR’s SaaS energy marketplace platform. In this hands-on leadership role, you’ll guide a team of engineers spanning front-end, back-end, and data disciplines, ensuring architectural integrity, engineering excellence, and continuous improvement. You … ensuring scalability, maintainability, and alignment with POWWR’s platform strategy and product vision. Lead the development of high-performance web applications using Angular, .NET, and Azure services. Oversee the design and evolution of robust API layers (GraphQL and REST), ensuring consistency, discoverability, and strong contract boundaries across services. Champion DevOps culture by embedding CI/CD pipelines, automation … team development. Drive engineering quality through code reviews, automated testing, and test-driven development (TDD) . Contribute to cross-team technical initiatives such as shared libraries, security standards, and design system evolution. Participate in agile planning, sprint reviews, and retrospectives , fostering collaboration and accountability. Ensure compliance with ISO 27001 , security best practices, and regulatory standards (e.g., GDPR). Contribute More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

Senior API/PHP Developer – Fully Remote (UK) – £80,000+ Venchr is partnering with a fast-growing SaaS company that’s redefining financial management in the luxury and yachting sector. Their platform unites accounting, payments, FX, and project management into a single, powerful ecosystem — helping clients worldwide streamline complex operations with ease. They’re now seeking a Lead PHP … Developer with a strong focus on API architecture and backend systems to join their fully remote UK-based engineering team. In this role, you’ll take ownership of designing, developing, and optimizing APIs that power mission-critical services. You’ll collaborate closely with product, DevOps, and frontend teams to ensure the platform remains scalable, secure, and future-proof. Beyond … hands-on coding, you’ll play a key part in setting technical standards, mentoring other engineers, and driving forward the API and integration strategy that underpins the company’s growth. What You’ll Bring Proven experience leading backend/API development using PHP and Laravel Expertise in RESTful API design, versioning, authentication, and performance optimization Strong More ❯

different stages of the Software Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design. You will play an important role in creating the Architecture and high level design artifacts. You will also do technical feasibility and identify smart ways of completing client’s requirement. You will guide the team technically and work closely with offshore team acting … and collaboration are encouraged, excellence is rewarded, and diversity is respected and valued. Responsibilities • Define architecture and technical standards for Angular-based web applications and related component libraries. • Architect, design and review .NET Core microservices (API design, messaging, resiliency, CI/CD) deployed to Azure (App Services, Containerization, Functions, Service Bus, Cosmos/SQL, APIM). • Specify … native mobile app architecture patterns and guidelines for SwiftUI (iOS) and Jetpack Compose (Android), including shared data, offline sync, feature flagging, and CI pipelines. • Own and evolve the design system: components, tokens, theming, versioning, and cross-platform implementation patterns. • Ensure WCAG 2.2 accessibility compliance across web and mobile UIs; define test strategies and automated checks. • Drive browser performance strategy More ❯

Solutions Architect – Data Platforms & API Migration Location: Manchester (Hybrid) Salary £80,000 - £90,000 DOE About the Opportunity A trailblazer in the legal sector is seeking a Solutions Architect with a specialist focus on legacy systems transformation, API-centric design, and enterprise-scale data platform migration. The company is recognised for embracing cutting-edge technology and innovation … Develop a technically robust engineering roadmap for migration and integration from on-premises/legacy platforms to cloud-based solutions, ensuring APIs and data flows are optimised. Target Architecture Design: Create scalable, resilient and secure architecture blueprints for a future-state data and applications landscape using SaaS, microservices, and APIs. Integration & Migration: Lead integration strategy and data migration efforts … with technical and business leaders to ensure all roadmaps support strategic business goals. Required Experience Significant expertise in software, solutions, or application architecture, including large-scale legacy migrations and API solutions. Prior experience within professional or legal services, or highly regulated environments. Proven track record delivering portfolio rationalisation and IT modernisation projects in complex organisations. Strong hands-on experience More ❯

Solutions Architect – Data Platforms & API Migration Location: Manchester (Hybrid) Salary £80,000 - £90,000 DOE About the Opportunity A trailblazer in the legal sector is seeking a Solutions Architect with a specialist focus on legacy systems transformation, API-centric design, and enterprise-scale data platform migration. The company is recognised for embracing cutting-edge technology and innovation … Develop a technically robust engineering roadmap for migration and integration from on-premises/legacy platforms to cloud-based solutions, ensuring APIs and data flows are optimised. Target Architecture Design: Create scalable, resilient and secure architecture blueprints for a future-state data and applications landscape using SaaS, microservices, and APIs. Integration & Migration: Lead integration strategy and data migration efforts … with technical and business leaders to ensure all roadmaps support strategic business goals. Required Experience Significant expertise in software, solutions, or application architecture, including large-scale legacy migrations and API solutions. Prior experience within professional or legal services, or highly regulated environments. Proven track record delivering portfolio rationalisation and IT modernisation projects in complex organisations. Strong hands-on experience More ❯

Solutions Architect - Data Platforms & API Migration Location: Manchester (Hybrid) Salary £80,000 - £90,000 DOE About the Opportunity A trailblazer in the legal sector is seeking a Solutions Architect with a specialist focus on legacy systems transformation, API-centric design, and enterprise-scale data platform migration. The company is recognised for embracing cutting-edge technology and innovation … Develop a technically robust engineering roadmap for migration and integration from on-premises/legacy platforms to cloud-based solutions, ensuring APIs and data flows are optimised. Target Architecture Design: Create scalable, resilient and secure architecture blueprints for a future-state data and applications landscape using SaaS, microservices, and APIs. Integration & Migration: Lead integration strategy and data migration efforts … with technical and business leaders to ensure all roadmaps support strategic business goals. Required Experience Significant expertise in software, solutions, or application architecture, including large-scale legacy migrations and API solutions. Prior experience within professional or legal services, or highly regulated environments. Proven track record delivering portfolio rationalisation and IT modernisation projects in complex organisations. Strong hands-on experience More ❯

Solutions Architect - Data Platforms & API Migration Location: Manchester (Hybrid) Salary £80,000 - £90,000 DOE About the Opportunity A trailblazer in the legal sector is seeking a Solutions Architect with a specialist focus on legacy systems transformation, API-centric design, and enterprise-scale data platform migration. The company is recognised for embracing cutting-edge technology and innovation … Develop a technically robust engineering roadmap for migration and integration from on-premises/legacy platforms to cloud-based solutions, ensuring APIs and data flows are optimised. Target Architecture Design: Create scalable, resilient and secure architecture blueprints for a future-state data and applications landscape using SaaS, microservices, and APIs. Integration & Migration: Lead integration strategy and data migration efforts … with technical and business leaders to ensure all roadmaps support strategic business goals. Required Experience Significant expertise in software, solutions, or application architecture, including large-scale legacy migrations and API solutions. Prior experience within professional or legal services, or highly regulated environments. Proven track record delivering portfolio rationalisation and IT modernisation projects in complex organisations. Strong hands-on experience More ❯

considered for this role you'll need commercial experience in C#/.NET Development Tech Stack: C#/.NET Core UI Development (WPF/XAML/MVVM) Entity Framework API Design & Development OOP SQL Git/TFS Desirable skills include Docker, Kubernetes, CI/CD, Android & Azure DevOps Role Overview: Design & architecture of applications and design More ❯

considered for this role you'll need commercial experience in C#/.NET Development Tech Stack: C#/.NET Core UI Development (WPF/XAML/MVVM) Entity Framework API Design & Development OOP SQL Git/TFS Desirable skills include Docker, Kubernetes, CI/CD, Android & Azure DevOps Role Overview: Design & architecture of applications and design More ❯

decision-making — bringing clarity and cohesion to a complex technology landscape. What you’ll be doing Designing and delivering enterprise-grade SaaS architectures for performance, scalability, and security. Leading design discussions, setting standards, and ensuring alignment across multiple product teams. Driving the modernisation of legacy systems and enabling reusable, API-first architectures. Partnering with engineering, product, and security … Architect or Principal Engineer within a complex, large-scale software environment. Strong background in .NET, cloud-native development (AWS or Azure) , and event-driven microservices . Deep understanding of API design, containerisation (Docker/Kubernetes) , and SQL/NoSQL database technologies. A passion for simplification, scalability, and pragmatic delivery. Strong stakeholder management and communication skills across technical and … business audiences. Hands-on, delivery-focused approach — you take ownership from design through to production. Why join? This is an opportunity to make a tangible impact within an established, well-funded organisation undergoing a significant technical transformation. Our client offers a collaborative, engineering-led culture where architecture has influence, innovation is encouraged, and delivery excellence is expected. If you More ❯

decision-making — bringing clarity and cohesion to a complex technology landscape. What you’ll be doing Designing and delivering enterprise-grade SaaS architectures for performance, scalability, and security. Leading design discussions, setting standards, and ensuring alignment across multiple product teams. Driving the modernisation of legacy systems and enabling reusable, API-first architectures. Partnering with engineering, product, and security … Architect or Principal Engineer within a complex, large-scale software environment. Strong background in .NET, cloud-native development (AWS or Azure) , and event-driven microservices . Deep understanding of API design, containerisation (Docker/Kubernetes) , and SQL/NoSQL database technologies. A passion for simplification, scalability, and pragmatic delivery. Strong stakeholder management and communication skills across technical and … business audiences. Hands-on, delivery-focused approach — you take ownership from design through to production. Why join? This is an opportunity to make a tangible impact within an established, well-funded organisation undergoing a significant technical transformation. Our client offers a collaborative, engineering-led culture where architecture has influence, innovation is encouraged, and delivery excellence is expected. If you More ❯

decision-making — bringing clarity and cohesion to a complex technology landscape. What you’ll be doing Designing and delivering enterprise-grade SaaS architectures for performance, scalability, and security. Leading design discussions, setting standards, and ensuring alignment across multiple product teams. Driving the modernisation of legacy systems and enabling reusable, API-first architectures. Partnering with engineering, product, and security … Architect or Principal Engineer within a complex, large-scale software environment. Strong background in .NET, cloud-native development (AWS or Azure) , and event-driven microservices . Deep understanding of API design, containerisation (Docker/Kubernetes) , and SQL/NoSQL database technologies. A passion for simplification, scalability, and pragmatic delivery. Strong stakeholder management and communication skills across technical and … business audiences. Hands-on, delivery-focused approach — you take ownership from design through to production. Why join? This is an opportunity to make a tangible impact within an established, well-funded organisation undergoing a significant technical transformation. Our client offers a collaborative, engineering-led culture where architecture has influence, innovation is encouraged, and delivery excellence is expected. If you More ❯

of demonstrations and documentation. You would contribute positively to all of these activities. You will work with senior members of the team to ensure your solutions conform to Klipboard design standards and technical solution stack. The role reports to the Delivery Manager of the relevant R&D team. We operate a hybrid working policy on completion of probation. The … Knowledge And Experience Preferred, 2:1 Upper second-degree Bachelors in a relevant discipline. 2:2 Lower second will also be considered if evidenced project Demonstrates suitable technical and design abilities. Experience of agile approaches to engineering solutions would be an advantage. Experience in the following, or similar, would be an advantage: A good understanding of VB, or the … React framework. REST-API design .NET 4.5.2+, ASP.NET, C# or similar React/JavaScript/TypeScript/Xamarin/PHP, Restful Service Design, WebAPI Skills & Qualities A true team worker with a constant focus on the goals and objectives of the team. Good problem solving and troubleshooting skills Able to communicate both verbally and in writing, articulating More ❯

Proven ability to lead technically by example while remaining hands-on in delivery Strong background in cloud (AWS) and infrastructure as code (Terraform) Solid understanding of SQL and database design Experience with modern frontend stacks and API design Enthusiasm for mentoring, collaboration and delivering software with impact If you’re looking for a role that blends technical More ❯

such as Git. Strong problem-solving skills and a detail-oriented mindset. Ability to work independently and as part of a team. Excellent communication skills. Desirable: Experience with RESTful API design and development. Knowledge of cloud platforms like AWS or Azure. Familiarity with Agile/Scrum methodologies. Experience with DevOps tools and practices. Benefits: Excellent opportunities for development More ❯

to help lead the next phase of growth. The Role We’re looking for an experienced Full Stack Engineer to take ownership of full lifecycle development — from architecture and design through to deployment and optimisation. You’ll be working across both the front and back end, collaborating with a multi-disciplinary team to build products that directly impact the … This is a hands-on, high-impact role with real autonomy and room to grow. Key Responsibilities Build and Own Develop scalable web applications using React, Next.js, and Node.js Design and maintain secure, high-performance RESTful APIs Lead architectural decisions across the full stack Own features end-to-end, from planning through to production Collaborate Work closely with UI … current with industry trends and recommend new technologies What We’re Looking For Strong commercial experience with React, Next.js, Node.js, and JavaScript Solid understanding of back-end development and API design Experience working with cloud platforms (preferably AWS) Familiarity with both SQL and NoSQL databases (e.g. PostgreSQL, MongoDB) Understanding of Git, CI/CD pipelines, and secure coding 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 ❯