1 to 25 of 63 API Development 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-first design More ❯

Full Stack Lead Engineer London - Hybrid Up to £85k React, TypeScript, NodeJS, AWS Benefits: Health Insurance Life Insurance Continuous Professional Development, Certifications Cycle to work And more I am looking for a Full Stack Lead Engineer for a client in London. You should have extensive experience with React, TypeScript, NodeJS and AWS. You will be taking the lead in … for a Full Stack Lead Engineer with the below skills to continue their success and growth. Essential skills: React, NodeJS, TypeScript AWS - Lambda, Cognito, S3, SQS, Eventbridge, Gateway Restful API development Event Driven Architecture, Event Systems Messaging Queues WebSockets SQL, NoSQL DevOps - CI/CD, Docker, GitHub. Desirable skills: WebAssembly IaC AWS Cloud Development Kit Integration testing … is an urgent vacancy so if you are interested then please apply quoting reference 102889. React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge | Restful API | API | SQL | NoSQL | messaging queues | WebSockets | DevOps | CI/CD | GitHub | WebAssembly | Infrastructure as Code | React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 | SQS | Eventbridge 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 … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development 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 responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines 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 … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development 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 responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines 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 … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development 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 responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines 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 … Excellent verbal and written communication skills to effectively collaborate with both technical and non-technical stakeholders. • Leadership: Experience leading large-scale integration projects in an agile environment and mentoring development 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 responsible for designing and overseeing the implementation of enterprise-wide integration solutions, with a strong emphasis on using low-code/no-code platforms and APIs. This role combines More ❯

a Developer within the Operations and Regulatory Technology team you be responsible for designing, developing and maintaining software used to support Janus Henderson's Regulatory obligations. To support the development of these applications you will be required to understand building of new cloud-based applications (Azure, Microsoft Stack, Angular), databases (Azure SQL Server, Snowflake), and supporting functionality to meet … the full project Lifecyle from project initiation through to test execution and Go Live, adhering to product release delivery schedules working as a collaborative team member in an agile development environment. This is a hands-on technical role where you will be required to research, design, develop, test, debug, document and support custom Regulatory applications in support of business … policies. Excellent Health and Wellbeing benefits including corporate membership to ClassPass. Paid volunteer time to step away from your desk and into the community. Support to grow through professional development courses, tuition/qualification reimbursement and more. Maternal/paternal leave benefits and family services Complimentary subscription to Headspace - the mindfulness app All employee events including networking opportunities and More ❯

They are now looking to recruit a Senior Solutions Architect to be based at the Company's Central London Offices. You will extensive and deep Expertise in following Application Development areas: " Expertise in application architecture using modern technologies such as cloud native development, 12 factor Apps, microservices, serverless, API management, Kafka, etc. " Deep knowledge of Microservices, Containers … REST APIs development, API Management tools (e.g. MuleSoft, Apigee), Kafka " Solution architect with broad expertise in wide range of digital technologies in areas of application platform development, web and mobile development, cloud, integration, security, etc. " Application dev experience with at least one of the cloud providers - Amazon AWS or MS Azure " Understanding of distributed computing paradigm … and exposure to building highly scalable systems. " Experience with platform modernization and cloud migration projects " Expertise in Agile development methodologies like TDD, BDD, Performance/Load testing etc. " DevOps experience - CI/CD, Test Automation, Containerization - tools and processes " Should be conversant with emerging technologies - chatbots, voice/conversational interfaces, RPA, Machine Learning, etc. " In-depth, hands-on experience More ❯

an expectation to visit other locations as the need arises. Expected Salary: £59,500 - £92,400 (depending upon experience)You will work as a software engineer specialising in Android development within a cross-functional Agile development team. You'll be working collaboratively with other highly skilled Android Engineers as well as iOS engineers, BAs, Quality Engineers, Designers and … User Experience specialists on challenging customer-facing projects .As a Staff Engineer you will have responsibility for the development approach and provide technical assurance on complex IT projects . You will also use your knowledge of software engineering to support shaping of new projects and support the professional development of less experienced software engineers. You will work with … with the latest technologies and techniques. In return for your commitment you will receive the support and resources needed to achieve your learning goals. Extensive experience in Native Mobile Development in Android (Kotlin and Java) Accessibility best practice Continuous Integration/Continuous Delivery Demonstrable experience in TDD, pair programming Agile development methods such as Scrum or Kanban REST More ❯

wide network of clients, whom may be at their site or one of our CIC or IBM locations. Our culture of evolution centres on long-term career growth and development opportunities in an environment that embraces your unique skills and experience. We offer: A multitude of training opportunities from classroom to e-learning, mentoring and coaching programs as well … We're seeking a seasoned Senior Application Developer to spearhead our Azure cloud initiatives. As a thought leader, you'll guide strategic decisions, architect complex solutions, and mentor our development team. Responsibilities Define the technical strategy and architecture for Azure-based applications, aligning with business goals and technological advancements. Mentor and guide junior developers, fostering a culture of continuous … growth and improvement. Conduct thorough code reviews, uphold coding standards, and promote high-quality software development practices across the team. Serve as a key liaison between stakeholders and the development team, translating requirements into technical solutions and leading high-profile projects. Contribute to the overall technical vision and direction of our cloud development efforts. Required technical and More ❯

controls work in London. Role Description: The person needs to have Python (ideally Quartz experience), and exposure to the reconciliation/controls model. The responsibilities will include business analysis, development, affinity with an agile way of working with stakeholders. And work with the development team, across the globe. Skills: Python, SQL, Quartz, React, HTML, CSS, Competencies: At least … years of Python and 1 year of React experience. Hands on experience in Quartz application development Hands on experience in Python , Rest API development and SQL Should have experience on Agile development Should be able to work as L3 support in a Devops environment UI design and development, ideally in React JS. MI and reporting … development using Tableau. Enterprise architecture, DevOps and Agile/Lean delivery techniques. Automated testing, instrumentation and data visualization techniques More ❯

controls work in London. Role Description: The person needs to have Python (ideally Quartz experience), and exposure to the reconciliation/controls model. The responsibilities will include business analysis, development, affinity with an agile way of working with stakeholders. And work with the development team, across the globe. Skills: Python, SQL, Quartz, React, HTML, CSS, Competencies: At least … years of Python and 1 year of React experience. Hands on experience in Quartz application development Hands on experience in Python , Rest API development and SQL Should have experience on Agile development Should be able to work as L3 support in a Devops environment UI design and development, ideally in React JS. MI and reporting … development using Tableau. Enterprise architecture, DevOps and Agile/Lean delivery techniques. Automated testing, instrumentation and data visualization techniques More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

the success driving innovation and excellence in our network infrastructure. Essential Technical Skills: Front-end: Angular, TypeScript Back-end: Java, Python, Spring Boot Database: MongoDB, PL/SQL,NOSQL API Development: RESTful APIs Version Control: Git CI/CD: TeamCity Desirable Skills: Docker and Containerization Monitoring and Logging (e.g., Prometheus, Grafana, ELK Stack) Cloud Platforms (AWS, Azure, Google … Cloud) Security and Compliance API Documentation (e.g., Swagger, OpenAPI) Code Quality Tools (e.g., SonarQube) Agile Methodologies (Scrum or Kanban) Soft Skills: Team Collaboration : Ability to work effectively with cross-functional teams, sharing knowledge and expertise. Proactive Approach : Anticipate challenges, identify opportunities, and take initiative to drive progress. Ownership and Accountability : Take ownership of tasks and projects, driving them to … the larger picture. Problem-Solving and Resilience : Drive issues to resolution, navigating complexities without getting bogged down. Training CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, on-line training and much more. You will have the opportunity to work on some of the most More ❯

API Develoiper - SC Cleared + 6 month initial contract + Fully remote + £650 to £690 per day + Inside IR35 Key Skills: + Strong background in API Development - ideally Axway + SC Clearance + WebMethods Responsibilities Designing, developing and deploying of Axway policies and containers using Axway Policy Studio v7.7 Working with DevOps toolset for develop … and maintain Automated Testing and Code Deployment Provide Assistance to Axway support team to resolve technical issues Administrating the Axway Environment, using Axway Policy Studio, Axway API Manager, Cassandra and API Gateway for Deployment of Axway Patches, monitor capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge of: SFTP HTTPS SSL More ❯

TDD, BDD) Seek out ways to measure the impact your solutions have on the business and use them to inform future workSkills and Experience Specification Essential : Experience of application development using Python (FastAPI desirable) Relevant qualifications and experience i.e. BSc in Computer Science or Engineering, Software Development certifications, etc. Demonstrable experience in configuring and developing complex software solutions … Strong understanding of object-oriented programming and test driven development (TDD and BDD) Strong understanding of agile software engineering practices Appetite for continual experimentation & learning Desirable : Experience of AWS or Azure Hands-on knowledge of Domain Driven Design (DDD) Some experience with frontend technologies such as HTML, CSS, HTMX, React Experience of C# with .NET Web and API development Understanding of git, CI/CD and DevOps practices and experience in Observability/monitoring Any knowledge of Actuarial/Commercial Insurance Some exposure to or interest in Terraform and deployment pipelines in AWS or Azure Awareness of modern software techniques such as integration patterns, microservices, containerisationWhat We OfferThe Tokio Marine HCC Group of Companies offers a More ❯

Overview API Developer - SC Cleared Contract: 6 month initial contract Location: Fully remote Rate: £650 to £690 per day Inside IR35 Key Skills Strong background in API Development - ideally Axway SC Clearance WebMethods Responsibilities Designing, developing and deploying Axway policies and containers using Axway Policy Studio v7.7 Working with DevOps toolset for develop and maintain automated testing … and code deployment Provide assistance to Axway support team to resolve technical issues Administrating the Axway environment, using Axway Policy Studio, Axway API Manager, Cassandra and API Gateway for deployment of Axway patches, monitoring capacity, providing service improvements Liaise with customers to define project requirements, document and design solutions Knowledge/Qualifications SFTP HTTPS SSL/TLS OAuth More ❯

cloud platform (AWS) and on VMs hosted a managed on-prem hosting environment. The application is extant and Live. You are to be the senior developer leading the ongoing development and support of the application, including designing, developing, integrating and unit testing new features in response to Product Owner/Client priorities and fixing bugs/issues raised on … the Live application. You will have experience working with/developing microservices, containerised applications, TypeScript, React(TypeScript), GraphQL/Hasura, API development and integration, PostgreSQL, JavaScript, GoLang, and Python. You will be comfortable using the supporting tools for Agile product delivery such as JIRA (User Story/Defect/Task Management), Confluence (Documentation/Comms), and Slack (collaboration …/comms). Key Responsibilities Lead development of microservices and front-end components using Node.js (TypeScript) and React (TypeScript). Configure and extend Hasura GraphQL Engine, including permissions, computed fields, and API integrations. Design and implement PostgreSQL schemas, migrations, and triggers; ensure data integrity and performance. Integrate with Identity and Access Management (IdAM) systems. Ensure secure coding practices More ❯

healthcare platform for people across Europe. About the role: We are hiring a Full Stack Engineer to join the ZAVA Engineering team and increase the overall capacity of our Development function. While you will be part of our Engineering team, day-to-day, you will work in one of our cross-functional squads, working alongside engineers and product management … taking responsibility for the development and maintenance of ZAVA products and services. ZAVA Engineering is an agile, highly collaborative and passionate environment. You should be open to pairing, helping others and expanding your skills. We have three product development squads, each consisting of 4-6 people. With increased demand for our services, we need your help to join … from salary we offer atraining budget, 10% R&D and learning time and flexible working (working pattern can be discussed) Day-to-day, the work will encompass: Hands on development of ZAVA applications and architecture - You will be responsible for design, implementation and delivery of new applications, components and features including incremental updates to ZAVA's current components as More ❯

Director of Engineering, Web Application Development page is loaded Director of Engineering, Web Application Developmentlocations: London, United Kingdomtime type: Full timeposted on: Posted Todaytime left to apply: End Date: October 16, 2025 (30+ days left to apply)job requisition id: R Role Description This is a senior leadership position in the FTSE Russell Technology team. You'll be responsible … approach in delivery. Key Responsibilities Collaborate closely with the key FTSE Russell customers and provide overall technology engineering leadership, expertise, and mentorship to lead all aspects of a software development - Requirements, Business Analysis, Architecture, Planning & Execution Through strong engagement and demonstration of E2E Index lifecycle, design most appropriate technical solutions involving user interfaces, back-end interactions and process orchestrations … Develop and implement roadmap for platforms to deliver initiatives concerning key index business functions Architect, design and coordinate the development of sophisticated front-end tools and the back-end services Lead a team of engineers that are skilled on different stacks - Angular, Java, Python and SQL. Implement multi-cloud solutions to ensure flexibility, scalability, and reliability of infrastructure across More ❯

Canary Wharf, London Working model: Hybrid - 3 days onsite We're looking for a talented Backend developer with strong Java and Node.js/TypeScript experience to join a dynamic development team within a leading financial services organisation. This role is ideal for someone who enjoys working across both backend development and infrastructure, collaborating with centralised DevOps teams, and … writing unit & integration tests. Strong problem-solving skills, with the ability to meet deadlines in collaborative environments. Nice-to-Have Skills Experience with Snowflake (cloud data warehousing). GraphQL API development experience. This is an urgent vacancy. If you are interested then please apply directly to the ad Randstad Technologies is acting as an Employment Business in relation More ❯

new asset management system—and they’re looking to bring experienced Back-End or Full Stack Developers on board to drive this transformation. As a key part of the development team, you’ll be involved in architecting and delivering robust, scalable backend solutions using PHP (Laravel), MySQL, and modern frontend technologies. You’ll be joining a collaborative and agile … environment where autonomy and technical input are both valued and encouraged. What you’ll be working with: PHP (Laravel) and MVC frameworks MySQL Backend API development (REST) HTML, CSS, JavaScript, Bootstrap Vue.js or similar JavaScript frameworks Azure DevOps, CI/CD pipelines Linux-based environments What we’re looking for: 3–6 years’ experience in a full stack … React, Node.js, Angular, or additional modern JS frameworks This is an exciting opportunity to work on a greenfield project with long-term impact, using a modern stack and best development practices. On offer is a salary of £60,000 plus excellent benefits, flexible working, and the chance to be part of something genuinely rewarding. Interested? Apply now or get More ❯

work with your colleagues, stakeholders and third parties, to align on requirements and deliver a user experience you can be proud of. The role requires demonstrable experience of backend development using PHP and MySQL, and includes full lifecycle development of RESTful APIs and web apps which can operate at scale on AWS. You will appreciate the benefits of … best practises around Modern Software Engineering, CI/CD, DORA metrics. Experience of software architecture and presenting technical designs to your team and stakeholders. Demonstrable expertise and understanding of API development/design and experience interfacing with disparate systems. Excellent communicator with a self-starter attitude and comfort working autonomously. Applicable understanding of software security, common exploits and … secure development practices, including the OWASP Top 10. Proven and demonstrable understanding of testing methodologies and frameworks. Commercial experience with AWS and IaC (Terraform/CDK/CloudFormation) Commercial experience with Linux, Docker, Docker Compose, Git and DynamoDB. About us Arrive, including brands like EasyPark, Flowbird, RingGo, ParkMobile and Parkopedia, is a leading global mobility platform. Present in over More ❯