1 to 25 of 59 API Design Jobs in London

Job Title: API Technical Lead Location: London (Hybrid) Job Description: We are seeking an experienced API Technical Lead to design, develop, and manage API solutions leveraging Kong API Gateway, IBM DataPower, and IBM Cloud Pak. This role requires a deep understanding of API management, security, and cloud-native architectures. The ideal candidate will have … expertise in designing scalable, secure, and high-performing API ecosystems for enterprise applications. Key Responsibilities: Lead the architecture, design, and implementation of API solutions using Kong API Gateway, IBM DataPower, and CloudPak. Define API standards, best practices, governance, and security models for API development and management. Collaborate with cross-functional teams to integrate APIs … with various backend services and external platforms. Ensure APIs are optimized for performance, scalability, and security. Implement API authentication, authorization, and security protocols (OAuth, JWT, Mutual TLS, etc.). Monitor API performance and troubleshoot issues using observability tools. Design and implement API versioning, rate limiting, and throttling policies. Provide mentorship to developers and drive API More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and translate … teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role … goal is to create scalable, efficient, and secure systems that connect various applications and data sources, enabling faster business process automation and digital transformation. Key Responsibilities A LCNC and API Integration Architect's responsibilities fall into three main categories: architecture & strategy, design & development, and governance & standards. 1. ARCHITECTURE & STRATEGY This architect is a strategic thinker who maps out More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and translate … teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role … goal is to create scalable, efficient, and secure systems that connect various applications and data sources, enabling faster business process automation and digital transformation. Key Responsibilities A LCNC and API Integration Architect's responsibilities fall into three main categories: architecture & strategy, design & development, and governance & standards. 1. ARCHITECTURE & STRATEGY This architect is a strategic thinker who maps out More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and translate … teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role … goal is to create scalable, efficient, and secure systems that connect various applications and data sources, enabling faster business process automation and digital transformation. Key Responsibilities A LCNC and API Integration Architect's responsibilities fall into three main categories: architecture & strategy, design & development, and governance & standards. 1. ARCHITECTURE & STRATEGY This architect is a strategic thinker who maps out More ❯

Must have skills: • A successful LCNC and API Integration Architect typically has a strong background in software development and systems integration. Essential qualifications include: • Technical Expertise: Deep knowledge of integration patterns, API architecture (REST, SOAP), and microservices. Proficiency with at least one major iPaaS or LCNC platform. • Analytical Skills: The ability to analyze complex business problems and translate … teams. • Problem-Solving: Strong troubleshooting and problem-solving abilities to address integration issues in a timely manner Minimum number of relevant years of experience: - 10+ years of exp in API and LCNC development. - Minimum 3 to 4 years of architect experience. RESPONSIBLITIES A Low-Code/No-Code (LCNC) and API Integration Architect is a senior technical role … goal is to create scalable, efficient, and secure systems that connect various applications and data sources, enabling faster business process automation and digital transformation. Key Responsibilities A LCNC and API Integration Architect's responsibilities fall into three main categories: architecture & strategy, design & development, and governance & standards. 1. ARCHITECTURE & STRATEGY This architect is a strategic thinker who maps out More ❯

Overview Ready to lead transformative digital solutions as our next visionary Power Platform Architect? Role overview We are seeking an experienced Microsoft Power Platform Architect to lead the design, development, and implementation of enterprise-scale solutions using the Microsoft Power Platform ecosystem. This role requires deep technical expertise in Power Apps, Power Automate, and Power BI, combined with strong … workflow will also utilise AI capabilities to assist with the preparation of Bordereau documents before submission to Intrali (e.g. to auto-generate mapping configurations). Key Responsibilities Solution Architecture & Design Design and architect a Platform solution that aligns with existing enterprise architecture standards and business objectives Create technical specifications, solution blueprints, and architecture Evaluate and recommend appropriate Power … Platform components and integration patterns Define data architecture, security models, and governance frameworks for Power Platform solutions Technical Leadership Work alongside a Power Suite SME to design and build the solution, including hands on Power Suite work as required Provide technical guidance and mentorship to the Power Suite SME, client stakeholders, and client developers Establish development standards, best practices More ❯

Overview AWS Technical Lead with experience leading an API-driven digital platform hosted on AWS is needed. Your role will involve driving the implementation of scalable, secure, and high-performance solutions integrated with Salesforce. Responsibilities Lead the design and implementation of scalable, secure, and high-performance solutions on AWS, with integration to Salesforce. Drive API design … end), Jenkins (CI), Karate/Gherkin (testing/BDD), and Cypress (UI testing); ability to implement DevSecOps practices and manage CI/CD pipelines. Systems & Integration: Solid understanding of API design principles and integration techniques for connecting cloud services with enterprise systems. Certifications: AWS certified (e.g. AWS Certified Developer - Associate or higher). Location: Based in the UK More ❯

product analytics, sales analytics and beyond. You will work in a small, nimble team. Our team prides itself on shipping with speed and having our engineers make product and design decisions with ownership and autonomy. As the newest addition to the Optimizely product portfolio, with a rapidly growing customer base there is tremendous opportunity to work on exciting and … be a technical leader responsible for shaping the foundation of Optimizely Analytics' backend systems and scaling them to meet the needs of our rapidly growing customer base. You will: Design and evolve the architecture of highly scalable, reliable, and secure distributed systems. Drive technical excellence across the engineering organization by setting standards for code quality, system design, observability … with strong foundations in data structures, algorithms, and distributed systems. 5+ years of backend experience building, deploying, and operating large-scale distributed systems in production. Deep expertise in system design, API design, scalability, and performance tuning. Proficiency in at least one modern backend programming language (Java preferred). Hands-on experience with cloud-native architectures, containerization, orchestration More ❯

Technology Team committed to delivering strategic technology decisions, innovative solution designs, and maintaining architecture information across the organisation. Our architecture team plays a crucial role in the assurance and design of key products, working collaboratively with multiple squads responsible for product development and liaising with key business stakeholders to ensure designs meet their needs. We are seeking a Solutions … This role involves shaping the strategic direction for easyJet Holidays' customer technology architecture and documenting our customer technology landscape. You will also participate in our Architecture Guild, which aligns design decisions with technology patterns, standards, and the wider enterprise technology strategy. What you'll be doing: As a Solutions Architect, you will lead the technology strategy for end-to … Customer team in technology discovery for new business ideas, providing conceptual solutions, options analysis, and guidance to realise our customer vision. Your role includes producing high-quality, comprehensive solution design artefacts that demonstrate a balance of different functional and non-functional drivers and requirements. You will provide architectural guidance to product teams and third-party vendors to ensure the More ❯

is a dynamic group of practical and pragmatic architects responsible for making strategic technology decisions, designing solutions, and safeguarding architecture information across the organisation. We ensure the assurance and design of key products being developed, collaborating with multiple squads and liaising with key business stakeholders to meet their needs effectively. We are seeking a Solutions Architect specialised in the … Product teams in technology discovery for new business ideas, providing conceptual solutions, options analysis, and guidance to realise our customer vision. Your responsibilities include producing high-quality, comprehensive solution design artefacts that balance different functional and non-functional drivers and requirements. You will provide architectural guidance to product teams and third-party vendors to ensure the delivered solution realises … Product Inventory Management Platforms, Order Management Platforms, and Caching & Search Solutions. Experience with AWS solution architecture components, building internal and external third-party integration architectures, and Event Driven Architecture Design & API Design is essential. A practical understanding of Generative and Agentic AI technology, a background in software development, and experience in the travel, retail, or e-commerce More ❯

Senior API Technical Consultant (GraphQL Specialist) Design and build next generation of high-scale SaaS platforms. We're looking for a senior/lead engineering consultant with deep expertise in GraphQL to take a leading role in developing our robust TypeScript/Node.js backend. You will be instrumental in shaping our technical direction, driving the evolution of our … APIs, ensuring our services are resilient, scalable and secure within a cutting-edge, cloud-native environment (Helm, Kubernetes). The Deliverables Design and build sophisticated, scalable GraphQL APIs and backend services using TypeScript and Node.js. Lead the design and evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. Champion best … team to guide process improvements and make key architectural decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . Expert level GraphQL , including advanced API design, schema evolution, performance optimisation. Strong automated testing frameworks like Vitest and Playwright . Proficiency with modern DevOps tooling and cloud-native architecture, including Docker , Helm , Kubernetes . More ❯

software across the full stack, from front-end UI to back-end APIs Build and maintain performant applications using React, Next.js, and Node.js Contribute to architectural discussions and technical design decisions Collaborate with product, design, and platform teams to align on feature delivery Write clean, maintainable code and participate in peer code reviews Optimise applications for performance, scalability … stack development using React , Next.js , and JavaScript/TypeScript Proven backend engineering skills using Node.js and/or modern languages like Python , Ruby , Scala , or Rust Solid understanding of API design and integration Track record of delivering end-to-end web applications Knowledge of performance tuning and front-end optimisation Comfortable in Agile environments with CI/CD More ❯

up-within a startup-style 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 TypeScript and modern frameworks (e.g. … development productivity and platform capabilities. 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 of emerging technologies and industry … Proven expertise in full-stack development using: TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) Python (including frameworks like Django, Flask, or FastAPI) PostgreSQL and relational database design, optimization, and maintenance. AI Development Tools such as Windsurf, Aider or Augment. Demonstrable experience building and scaling SaaS platforms in a production environment. Strong understanding and practical application of More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

in Artificial Intelligence, Data Engineering, Data Analytics, and Software Development, the team is revolutionising the auditing process to deliver smarter, faster, and more reliable outcomes. Our mission is to design and implement robust, intelligent, and scalable technologies that not only streamline workflows but also enhance audit quality and generate actionable insights for auditors and clients. Through harnessing the power … Requirements Experience: Significant professional experience in backend development as a Senior role. Languages/Frameworks: Strong proficiency in Python with hands-on experience in asynchronous programming, concurrency and multithreading. API Expertise: Proven experience in building and integrating APIs, with expertise in API documentation and schema definition using OpenAPI/Swagger. Strong understanding of RESTful API design, authentication/authorization standards, and API lifecycle best practices; familiarity with Microsoft Graph API is a plus. Experience & Knowledge Requirements Good knowledge of generative AI, machine learning, deep learning, natural language processing or other relevant AI fields. Proven track record of designing, developing, and deploying AI systems in production environments. Proficient in Python and key ML libraries More ❯

a Senior Java Developer, you will play a key role in designing, developing, and maintaining enterprise-grade applications, while mentoring junior engineers and helping shape technical strategy. Key Responsibilities Design, develop, and maintain Java-based applications and services . Write clean, efficient, and well-documented code . Participate in code reviews and provide constructive feedback. Collaborate with cross-functional … teams to define, design, and deliver new features . Troubleshoot and debug complex issues. Required Qualifications Professional Java software development experience. Strong understanding of object-oriented programming and design patterns . Hands-on experience with Spring and Hibernate frameworks. Solid experience with relational databases (MSSQL, Oracle). Proven experience with RESTful API design and development . More ❯

to the maintenance of a clean, efficient codebase. Build across the stack: from low-code automations to polished React applications. Collaborate with business stakeholders to deeply understand problems and design solutions that improve efficiency. Explore and apply modern automation approaches, including LLM-powered agents. Contribute to the full software lifecycle: design, build, deploy, and support. Champion a mindset … of "improving how we build," both for team practices and developer experience. API Design and Development: Design and develop robust APIs with a strong emphasis on GraphQL. The right candidate: Adaptability in a Fast-Paced Environment: Thrives in dynamic settings and can quickly adapt to the evolving needs of the business. Comfortable with rapid changes and able … Experience with relational databases. Experience with Containers, Kubernetes, CI/CD, IaaC tooling, and Public Cloud platforms. Experience with graph databases and low & no-code tools. Familiarity with digital design tools such as Figma. Familiarity with schema first database development, especially with Prisma ORM. Experience with graph databases, such as Neo4j We believe in taking care of our staff More ❯

makes sense once processes are sound. Key responsibilities: Build across the stack: from low-code automations to polished React applications. Collaborate with business stakeholders to deeply understand problems and design solutions that improve efficiency. Explore and apply modern automation approaches, including LLM-powered agents. Contribute to the full software lifecycle: design, build, deploy, and support. Champion a mindset … of "improving how we build," both for team practices and developer experience. API Design and Development: Design and develop robust APIs with a strong emphasis on GraphQL. The right candidate: Adaptability in a Fast-Paced Environment: Thrives in dynamic settings and can quickly adapt to the evolving needs of the business. Comfortable with rapid changes and able … Experience with relational databases. Experience with Containers, Kubernetes, CI/CD, IaaC tooling, and Public Cloud platforms. Experience with graph databases and low & no-code tools. Familiarity with digital design tools such as Figma. Familiarity with schema first database development, especially with Prisma ORM. Experience with graph databases, such as Neo4j We believe in taking care of our staff More ❯

Solution Architect - TOGAF, Network and Security Design Exp at N Consulting Ltd About the Role We are seeking a highly skilled Solution Architect with strong expertise in solution design, system integration, and technical leadership. The role involves defining end-to-end architectures, leading complex projects, and ensuring alignment with business and technical requirements. The ideal candidate will have … strong stakeholder management skills, deep knowledge of industry standards, and a solid understanding of security and cloud technologies. Key Responsibilities Lead solution architecture and high-level design for complex, large-scale projects. Design and integrate APIs and system components ensuring scalability, reliability, and security. Provide technical leadership across cross-functional teams to drive system integration initiatives. Collaborate with … analysis for new and existing solutions. Ensure adherence to formal architecture frameworks and standards (e.g., TMF, TOGAF). Evaluate and recommend cloud-based solutions and emerging technologies. Apply security design principles to ensure compliance and risk mitigation. Support project delivery teams by providing architecture guidance throughout the solution lifecycle. Key Skills & Experience Proven experience in Solution Architecture and System More ❯

systems/subsystems and their interfaces while defining non-functional requirements. Collaborate with stakeholders and vendors to ensure solutions are fit for purpose and evaluate the impact of strategic design decisions. Lead the rapid shaping of high-level architecture while maintaining flexibility and modularity. Utilize best practices and templates to create comprehensive architectural designs. Work closely with Product Managers … to prioritize technology-focused backlog items. Clarify architecture for development teams and provide solution options for any challenges. Conduct design reviews to ensure all non-functional requirements are met, focusing on aspects such as security, performance, and scalability. What We're Looking For: To thrive in this role, you should have: Must Have - Domain knowledge in Corporate Payments and … familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and Agile SDLC methodologies. Excellent coordination and communication skills to engage with business More ❯

systems/subsystems and their interfaces while defining non-functional requirements. Collaborate with stakeholders and vendors to ensure solutions are fit for purpose and evaluate the impact of strategic design decisions. Lead the rapid shaping of high-level architecture while maintaining flexibility and modularity. Utilize best practices and templates to create comprehensive architectural designs. Work closely with Product Managers … to prioritize technology-focused backlog items. Clarify architecture for development teams and provide solution options for any challenges. Conduct design reviews to ensure all non-functional requirements are met, focusing on aspects such as security, performance, and scalability. What We're Looking For:To thrive in this role, you should have: Must Have - Domain knowledge in Corporate Payments and … familiarity with related areas such as Accounting Services and Liquidity Management. Proficiency in API Design, microservices, and integration platforms. Experience with Cloud Platforms (AWS, Azure, GCP). Knowledge of DevOps, CI/CD pipelines, and containerization (Docker, Kubernetes). A strong foundation in both Waterfall and Agile SDLC methodologies. Excellent coordination and communication skills to engage with business More ❯

Solid experience with Umbraco CMS (v13+ ideally) Strong C#, ASP.NET MVC/Core, and .NET framework skills SQL Server know-how and a good grasp of relational databases RESTful API wizardry and integration smarts Git fluency and Agile mindset A keen eye for SEO, accessibility, and performance Clear communication and documentation skills A curious mind and a can-do … also have Experience with Dynamics 365, MS Portals, Azure WebApps/Services Familiarity with cloud hosting, DevOps, CI/CD pipelines Automated testing and QA frameworks GraphQL or REST API design skills What else we're looking for You're organised, detail-oriented, and confident juggling multiple priorities. You thrive in a team, but you're not afraid More ❯

adapt to evolving requirements Collaborate with stakeholders, vendors, and development teams Ensure non-functional requirements are met (e.g. security, scalability, performance) Support agile delivery and architectural runway planning Lead design reviews and resolve technical impediments Required Skills: Deep domain expertise in Corporate Payments (essential) and related financial services Strong experience in API design , microservices , and integration platforms More ❯