1 to 25 of 89 API Design Jobs in London

drive technical excellence, establish coding standards, and optimise real-time services for a fast-growing platform. You’ll be responsible for backend architecture, microservices design, database management (SQL), and cloud integration (AWS) while collaborating with designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop … Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within an AWS environment (supported by an in-house DevOps team … experience (currently using Java 21). ✅ SQL Database Proficiency – Strong experience with SQL databases (PostgreSQL preferred). ✅ Microservices & Cloud – Deep knowledge of microservices architecture, API design, and AWS . ✅ Spring Boot & Scala – Nice to have but not essential. ✅ Betting, Gaming, or Big Data Background – Experience in real-time More ❯

drive technical excellence, establish coding standards, and optimise real-time services for a fast-growing platform. You’ll be responsible for backend architecture, microservices design, database management (SQL), and cloud integration (AWS) while collaborating with designers, engineers, and product teams to deliver world-class gaming solutions. Key Responsibilities ✔ Develop … Lead – Drive the development of scalable, interactive gaming products using Java (11+), Scala & Spring Boot . ✔ Microservices & API Design – Design and implement modular microservices architecture with 3-tier API design . ✔ Cloud & DevOps – Work within an AWS environment (supported by an in-house DevOps team … experience (currently using Java 21). ✅ SQL Database Proficiency – Strong experience with SQL databases (PostgreSQL preferred). ✅ Microservices & Cloud – Deep knowledge of microservices architecture, API design, and AWS . ✅ Spring Boot & Scala – Nice to have but not essential. ✅ Betting, Gaming, or Big Data Background – Experience in real-time More ❯

is welcome; join us and be your best self! We are seeking a Senior Software Engineer to join our team! Your Impact: Software Development: Design, implement, and maintain scalable, maintainable, and efficient Python-based applications, focusing on backend and full-stack development. Collaboration & Communication: Work closely with product managers … pipelines (e.g., Jenkins, GitLab CI). Testing and Debugging: Experience with testing tools like pytest , unit tests, and debugging skills to quickly resolve issues. API Design: Strong knowledge of RESTful API design and implementation; knowledge of GraphQL is a plus. Security Best Practices: Awareness of security More ❯

for our customers. Key Responsibilities Maintain the overall Internal and External APIs Technology Strategy and external developer experience. Specify standards, patterns, platform technology (e.g., API Gateways), API governance, and target state for effective at-scale market-unit-wide API management capabilities. Drive technical alignment across the API design community, including Enterprise, Solution Architecture, and Engineering, which spans multiple Business Units (BUs). Educate senior leadership (technology and business) to raise understanding of API-led technology architecture. Analyze industry trends to leverage technology and methodology advances. Set KPIs and perform progress tracking and reporting against … target state and API controls. Participate in CTAO Leadership forums, conducting QA and Review of architecture deliverables and strategic API contracts. Serve as the single point of contact and escalation for architecture development across business units and with senior business and technology leadership. Communicate architecture direction and its More ❯

Your responsibilities will include: Defining & Leading the Engineering Vision - Drive the technical strategy, platform evolution, and modernization of our software ecosystem. Influence cloud adoption, API-first development, automation, and DevOps maturity. Owning Sub-Domain Level OKRs - Work closely with Product, Design, UX, and Commercial teams to co-own … inclusion, and career growth. Technical Excellence & Architecture Alignment - Collaborate with Architects and Principal Engineers to establish best practices in distributed systems, microservices, cloud-native design, API strategy, and front-end development. Driving Automation & DevOps Best Practices - Champion CI/CD pipelines, cloud transformation, and platform engineering principles, ensuring … as an Engineering Manager(senior), Lead Engineer, or Tech manager, managing complex engineering projects. Strong expertise in distributed systems, cloud architecture (GCP & Azure), microservices, API design, and scalable platform engineering. In-depth knowledge and hands-on experience with technologies such as .NET, Python, Spark, Git (GitLab), Docker, Kubernetes More ❯

as a mix from office and home. The Role We are seeking a Technical Product Manager with a deep understanding of technology and product design, who can bridge the gap between engineering and business. In this role, you will own and drive the evolution of our product offerings - from … ideation and design through implementation and delivery - and ensure our solutions are technically robust, user-centric, and commercially viable. This is a high-impact role requiring a strategic thinker with strong technical acumen and experience in payments and/or fraud prevention. You'll work closely with cross-functional … you will do Solutions & Integrations : Drive product integrations with merchants, ecommerce platforms, and payment stacks. Translate partner needs into technical requirements and oversee the API design process to ensure robust, scalable, and secure solutions. Provide technical guidance to customers and partners during integration and ensure documentation is clear More ❯

Leverage tooling and automated testing to deliver quality software at speed. Contribute to the core architecture of our systems, improving database performance, data integrity, API design, and distributed system reliability. Your experience with software resilience will help us build systems that gracefully handle unexpected scenarios. Must-have Strong … with full-stack web development using TypeScript or other typed languages. Experience with modern frontend frameworks (React preferred). Experience with backend development and API design ( Node.js preferred). Understanding of distributed systems concepts - if you've built reliable microservices or dealt with API synchronization, you already … it. Ability to work effectively in cross-functional teams. Strong communication skills and customer empathy. At least one of these areas Product thinking and design mentality : Experience working closely with users, translating complex requirements into simple interfaces, and making scope decisions based on customer value. Deep distributed systems expertise More ❯

to Engineering. Able to remove any blockers for engineers in terms of code, resources, clarification, etc. Able to chime in for code reviews and design discussions on general coding practices and futureproofing. Deliver sustainable, performing, and cost-efficient software components fulfilling product requirements in time, budget, and quality. Be … planned tasks - identify project dependencies/anticipate and resolve conflicts that may pose a risk to successful completion. Responsibility for full SDLC (Planning, Engineering design, Development, QA, CI/CD, and Production Support). Provide 2nd-level support for production systems. Collaborate with other engineering managers, architects, and operations … What you'll need At least 3+ years' experience in leading teams & 5+ years' experience as a software developer. Strong knowledge of software architecture, API design, API Management, and scalable systems. Strong experience in the following: Automating business workflows and proven experience with system integrations. Jira, Confluence More ❯

our cross-functional team of Frontend Developers, QA Engineers, and DevOps Engineers to build secure, scalable microservices that revolutionize clinical research applications. You'll design REST API endpoints, develop relational database schemas, and work within a containerized microservice platform. Key Responsibilities: Design & Implement : Craft REST APIs using … pipelines. Mentorship : Coach junior and mid-level engineers. Agile : Actively participate in Agile ceremonies. What You Bring: Expertise : 5+ years of experience in REST API design using C# and .NET Core SDK. Testing Pro : Proficient in writing unit and integration tests with xUnit, Moq, SpecFlow, etc. Clear Communicator … Ability to explain and document complex concepts clearly. Architecture Knowledge : Understanding of microservice architecture. API Standards : Experience with Swagger/Open API specification and documentation. Security Savvy : Strong knowledge of endpoint and data security standards, including OAuth2. Cloud Experience : Working knowledge of cloud platforms like Azure. DevOps & Containers More ❯

The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Key responsibilities … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯

The Change Partners are working with a tier-1 Beverage brand who are hiring for a Azure (API) Integration Engineer. The Azure Specialist will be responsible in desiging integration strategies for a variety of systems internally, creating efficiencies across data flows and ensuring seamless API implementation. Key responsibilities … OAuth2 and Cloud) integration development. Partner with technology and business teams to define requirements for integration and align to business objectives. Lead on integration design solutions and API patterns. Be the 'go to' specialist for platform integration, working with Product owner. Manage end to end lifecycle development of … the product from a design, build, deployment and operational management of the platform. Ensure platform/product is developed efficiently and reliably in line with company policies. Become hands on with API integration patterns, REST, SOAP, cloud and wider architectures, components, visualisation of networks and autonomy. Work with More ❯

You will collaborate with cross-functional teams to ensure the delivery of high-quality systems while maintaining technical excellence and innovation. Key Responsibilities: Architectural Design & Development: Define, design, and implement scalable and secure technical architectures for enterprise-level applications and systems. Oversee the integration of complex software systems … and challenges during project lifecycles. Develop proof-of-concepts (POCs) and prototypes for proposed solutions. Key Skills & Competencies: Strong expertise in software engineering principles , design patterns, and best practices. Proficiency in multiple programming languages (e.g., Java, Python, C#, or others) and frameworks. Extensive experience with cloud platforms (e.g., AWS … Azure, Google Cloud) and containerization technologies (e.g., Docker, Kubernetes). Hands-on experience in microservices architecture , API design, and distributed systems. Deep understanding of DevOps practices, CI/CD pipelines, and infrastructure as code (IaC). Familiarity with data architecture, databases (SQL/NoSQL), and big data technologies. More ❯

AKQA believes in the imaginative application of art and science to create beautiful ideas, products and services. With an entrepreneurial and collaborative approach, we design adaptive digital services and applications that capture the imagination, delivering immersive experiences for our clients. Located in London (Farringdon), United Kingdom, you will be … digital applications, serving users on the modern technology landscape, whatever that may be. In particular development of Node.js and Java applications and systems integrations, API design and development, DevOps activities, building and implementing servers, databases, serverless architectures as well as implementation of security mechanisms and monitoring; on AWS … Azure or GCP cloud hosting. ROLE REQUIREMENTS Hands on design and development of large scale projects. Proactive in engineering communities and thought leadership both internally and externally. Line management and coaching of senior and junior engineers, as well as near and off-shore project engineers, whilst maintaining high levels More ❯

company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯

company helping clients engage in marketing strategies with audiences in virtual worlds. Your Focus: As a Senior Backend Engineer focused on Data Pipelines and API Optimisation, you’ll be central to our platform's performance and scalability. You’ll design, build, and iterate on the systems that handle … delivery - ensuring they are scalable, reliable, and performant. You should have a strong background in backend engineering, particularly around distributed systems, database optimisation, and API development. You’ll work with technologies like JavaScript and TypeScript to build robust services that meet high standards for performance and reliability. This role … is ideal for someone experienced, self-driven, and excited about leading backend projects involving large-scale data handling and API improvements. Your technical leadership will help evolve our infrastructure and mentor other engineers as we scale. Skills, Knowledge, and Expertise Experience 5+ years in Backend Software Engineering, with a More ❯

AWS ecosystem including, ECS, RDS, Lambda, SQS and Streaming services. Familiarity with Terraform and/or other IaaS models. Good understanding of OOP principles, design patterns, API design and event-driven architecture. Strong experience in modern development practices, such as agile, lean and continuous delivery. Perks that More ❯

grow with us. Location: Soho, London (onsite 3-4 days a week) Salary: Approx. £60,000 annually, depending on experience Main Responsibilities Development and Design: Write clean, efficient, and maintainable code using TypeScript, JavaScript, Node.js, and React. Design and implement robust applications and services to meet predefined requirements. … and practices, such as Git, CI/CD pipelines, automated testing frameworks (e.g., Jest, Mocha), and containerisation technologies (e.g., Docker). Knowledge of RESTful API design and development, and familiarity with web services architecture. Ability to write efficient, secure, well-documented, and clean JavaScript code. Familiarity with database More ❯

to define target state architecture and roadmap. Transactional Banking Experience (Payments, Governance, Compliance) Proficient in defining the target state architecture, roadmap and high-level design for the assigned scope based on business outcomes and aligned with the bank's strategy. The target state architecture and solution should cover all … Proficient in Cash Management & Liquidity domain along with deep understanding of integration to Payments and Core Banking platforms. Proficient in Cloud Native Architecture, Microservices design patterns, API design, Event-Driven Architecture and Database concepts. Expected to have good understanding of monolithic to microservices migration. Responsibilities – Current state More ❯

to define target state architecture and roadmap. Transactional Banking Experience (Payments, Governance, Compliance) Proficient in defining the target state architecture, roadmap and high-level design for the assigned scope based on business outcomes and aligned with the bank's strategy. The target state architecture and solution should cover all … Proficient in Cash Management & Liquidity domain along with deep understanding of integration to Payments and Core Banking platforms. Proficient in Cloud Native Architecture, Microservices design patterns, API design, Event-Driven Architecture and Database concepts. Expected to have good understanding of monolithic to microservices migration. Responsibilities – Current state More ❯

and Distributed Systems : Deep understanding of microservices architecture and distributed systems, including knowledge of Back-end For Front-end (BFF) architecture (a plus). API Design and Development : Solid experience in designing and developing RESTful APIs, ensuring they are scalable, secure, and efficient. Database Expertise : Familiarity with both … efficiency and reduce manual tasks. System Monitoring and Documentation : Ability to document development phases and monitor systems to ensure high availability and performance. Software Design and Architecture : Strong skills in software design, with an emphasis on building highly available, scalable, and distributed systems. Quality Assurance and Testing : Strong More ❯

Entertainments as we transform the future of digital guest experiences across our iconic global attractions. We’re seeking a talented Security Solutions Architect to design and deliver secure, scalable, and cloud-native microservices architectures that power engaging, seamless experiences for millions of guests worldwide. About the Role This is … microservices systems. Define service boundaries, orchestration strategies, and ensure architectural alignment with business goals. Champion best practices in security, performance, and cloud-native development. Design and implement solutions within AWS, Azure, or GCP environments. Establish CI/CD pipelines, containerisation strategies, and DevOps automation practices. Introduce and manage telemetry … Extensive experience designing and implementing enterprise-grade microservices architectures. Strong software development background (Java, .NET, Python) with architectural leadership. Deep understanding of microservices principles, API design, and domain-driven design. Proficient in cloud platforms (AWS, Azure, GCP) and modern DevOps tooling (e.g., Terraform, Jenkins, Kubernetes). Hands-on More ❯

Entertainments as we transform the future of digital guest experiences across our iconic global attractions. We’re seeking a talented Security Solutions Architect to design and deliver secure, scalable, and cloud-native microservices architectures that power engaging, seamless experiences for millions of guests worldwide. About the Role This is … microservices systems. Define service boundaries, orchestration strategies, and ensure architectural alignment with business goals. Champion best practices in security, performance, and cloud-native development. Design and implement solutions within AWS, Azure, or GCP environments. Establish CI/CD pipelines, containerisation strategies, and DevOps automation practices. Introduce and manage telemetry … Extensive experience designing and implementing enterprise-grade microservices architectures. Strong software development background (Java, .NET, Python) with architectural leadership. Deep understanding of microservices principles, API design, and domain-driven design. Proficient in cloud platforms (AWS, Azure, GCP) and modern DevOps tooling (e.g., Terraform, Jenkins, Kubernetes). Hands-on More ❯

cloud platforms (AWS, Azure, GCP). Experience with infrastructure-as-code tools (Terraform, Ansible) is a plus. Deep knowledge of software architecture, microservices, and API design principles. Familiarity with database technologies like PostgreSQL, MySQL, and NoSQL solutions (MongoDB, Redis). Strong understanding of Agile methodologies and DevOps culture. More ❯

. Postgres, Docker, Prometheus, K8s, Elastic. Team Stream Development Lead, 2 BE, 1 FE, 1 SDET As a qualified expert, You will Help architect, design, and develop complex, large-scale systems Identify opportunities to adopt innovative technologies Create architectures and diagrams that describe them Work on and provide guidance … for microservice REST API design Write key algorithms to maximize scalability and reliability Write code and unit tests Conduct code reviews Diagnose complex problems involving multiple systems and technologies Provide guidance and mentorship to a team of talented software engineers Be an example of engineering excellence Communicate with More ❯

talented 3 Fullstack Engineers (React/Python) to join the growing team and contribute to the development of intelligent, scalable digital products. Key Responsibilities: Design, build, and maintain scalable fullstack web applications using React on the frontend and Python (Django/FastAPI/Flask) on the backend. Collaborate closely … and modern JavaScript (ES6+) or TypeScript. Proficiency in Python , ideally with experience in web frameworks such as Django, FastAPI, or Flask. Strong understanding of API design, microservices, and web architecture. Experience with relational and NoSQL databases (e.g. PostgreSQL, MongoDB). Comfortable working with cloud services like AWS, Azure More ❯