76 to 100 of 104 API Development Jobs in London

agentsYou have experience with document processing, RAG, tool calling, vector databases and agent memoryYou have a strong knowledge of FastAPI, Pydantic, asynchronous Python and API developmentExperience with PydanticAI or similar agent frameworksYou have an understanding of MCP, AI guardrails, evaluation frameworks and human-in-the-loop workflowsYou have experience ...

will work across disciplines, applying Python, C/C++, and Java to build technical solutions and perform financial research. You will engage in debugging, API development, and collaboration with product teams while gaining exposure to client-facing responsibilities and strategic planning. On-site at our London office, strong ...

join our teams, where you'll be building and work across Go, JavaScript/TypeScript and Python, designing scalable, high-availability architectures, contributing to API development, cloud infrastructure, and observability, while mentoring engineers and driving good practices across the team.If you're curious, collaborative, and comfortable using ...

fast-growing company than wait your turn at a big one. Startup or top-tier consultancy backgrounds are both welcome Nice to have TypeScript, API development or dashboarding tools Airflow, dbt or Databricks Experience with ERP (SAP, Oracle) or CRM data Palantir Foundry or AIP Why engineers join ...

maintain scalable software solutions. You will work with cross-functional teams to translate user needs into robust backend services. The role focuses on API development, modernization of legacy code, and strong database design with SQL. UK-based applicants with full right to work are required. #J-18808-Ljbffr ...

lead architecture, collaborate with clients and cross-functional teams, and ensure scalable, secure delivery of AI-enabled platforms. You will drive backend/backend-api development in Python and TypeScript/Node.js, integrate with cloud platforms, and establish robust evaluation, observability and cost-management practices #J-18808-Ljbffr ...

businesses. You will own features end-to-end—from backend services and APIs to frontend interfaces—using Go, React, TypeScript, PostgreSQL, and modern API development. You’ll ship and operate, measure impact, and iterate in a remote-first, high-ownership environment. We value ownership, outcomes, and clear communication; experience ...

remote. Company context Thought Machine has active SoftwareCareers listings in the current job inventory. Prepare examples for: Distributed Systems, Cloud Infrastructure, Software Engineering, API Development. Receive verified Engineering jobs with visa and relocation signals. Explore similar employers with active visa-sponsored roles. Plan relocation while you evaluate this role. ...

other reasonable duties requested by your line manager or 7IM. About You Qualifications Relevant degree or equivalent knowledge Skills Proficiency in C#, modern .NET, API design and development, SQL Server and the web technologies used by the squad. Experience with Angular is preferred, although React experience is also … code, CI/CD, source control and automated testing. Understanding of secure coding, identity and access, dependency risk, data protection, common web and API vulnerabilities, and the controls expected in a regulated financial services firm. Practical proficiency with AI tools for agentic development. Able to provide useful context ...

Company Overview: Team Creation Limited is a fast-growing software development company operating across Asia and Europe. We provide services including market research, artificial intelligence solutions, cloud computing, and mobile application development for a broad range of international clients. Our focus is on delivering innovative and high-quality … technology solutions while supporting the continued growth and development of our professional workforce. Role Overview: We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our back office system platform, ensuring ...

experienced Software Engineering Leader to join JPMorgan Chase. As a Lead Software Engineer within Asset & Wealth Management Risk Technology, you will lead the design, development and evolution of a business-critical risk analytics and reporting platform used by Risk managers and senior leadership across the firm. You will partner … multiple business domains. Define and govern UI architecture standards, design systems, extensibility frameworks, and frontend engineering best practices to enable scalable and consistent product development across teams. Partner directly with Risk, Product and Data stakeholders to understand business priorities and translate them into scalable technology solutions. Drive platform reliability ...

DNAFSJob DescriptionIn the role of Lead Consultant, you will interface with key stakeholders and apply your technical proficiency across 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 … GitHub CoPilot (GHCP)•Experience in working with an Agile teamPreferred•Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience•Distributed systems experience•Web Application development (JavaScript, AngularJS, Bootstrap, etc.)•Rest API design and development•DDD/CQRS/Event sourced systems experience•Relevant industry (banking middle/ ...

Description In the role of Technology Architect, you will interface with key stakeholders and apply your technical proficiency across 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 … CoPilot (GHCP) Experience in working with an Agile team Preferred Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience Distributed systems experience Web Application development (JavaScript, AngularJS, Bootstrap, etc.) Rest API design and development DDD/CQRS/Event sourced systems experience Relevant industry (banking middle/ ...

Description In the role of Lead Consultant, you will interface with key stakeholders and apply your technical proficiency across 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 … CoPilot (GHCP) Experience in working with an Agile team Preferred Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience Distributed systems experience Web Application development (JavaScript, AngularJS, Bootstrap, etc.) Rest API design and development DDD/CQRS/Event sourced systems experience Relevant industry (banking middle/ ...

will own core services and APIs, working closely with product teams to deliver reliable, scalable solutions. Applicants should have backend experience in finance, with API development and cloud exposure. The role offers growth in a dynamic, customer-impacting environment in the UK. #J-18808-Ljbffr ...

involves close customer collaboration, ensuring seamless tech deployment, and driving product feedback. You will need a strong background in computer science or machine learning, API development, and cloud infrastructure, ideally with previous customer-facing experience. Competitive perks include health insurance, pension contributions, and generous leave policies. #J ...

workflows Collaborate with product teams Improve system reliability Support integrations with third parties Required Experience Backend engineering experience Financial services or lending exposure API development skills Experience with transactional systems Cloud platform exposure Nice to Have Credit decisioning systems Event-driven architectures SaaS platform experience Why Join Customer ...

role To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized … ongoing evolution of our technology landscape. To be successful as a Software Engineer you should have Software engineering experience, with knowledge of modern application development practices. Experience developing solutions across frontend, backend or full-stack environments. A focus on delivering customer-centred solutions and positive business outcomes. Excellent communication ...

what a typical day might look like: Develop and maintain Symfony-based applications with clean, efficient code Design and implement RESTful APIs using API Platform or FOSRestBundle Build reusable bundles and Symfony components Integrate third-party services and APIs into applications Optimize application performance and database queries Responsibilities Develop … maintain Symfony-based applications with clean, efficient code Design and implement RESTful APIs using API Platform or FOSRestBundle Build reusable bundles and Symfony components Integrate third-party services and APIs into applications Optimize application performance and database queries Write comprehensive tests using PHPUnit and Symfony testing tools Collaborate with ...

permanent Senior Software Engineers, working side by side: real parallel development, genuine peer review on every change, and shared ownership of production. About the role We're scaling our engineering team to meet confirmed demand for our compliance-focused software, and we're hiring two Senior Software Engineers … work side by side. Two hires means real parallel development, genuine peer review on every change, and shared ownership of production — not a lone developer carrying a platform. Skyie Global InfoTech Ltd is a compliance-native software house and consultancy based in London. We build a growing portfolio ...

Collectively to Inspire transformational Creativity. Create an Open environment by Balancing People and Client Experiences by Cultivating Trust. Lead Optimistically by Championing Growth and Development to Mobilize the Enterprise. You’ll likely have experience developing web applications in a modern technology stack and a strong foundation in both back … have: Experience with C#/.NET Core, TypeScript, and React (Next.js/Remix). A good grasp of relational database design and API development. Practical experience deploying to Azure using Infrastructure as Code (Terraform). Familiarity with headless CMS and composable architectures. A passion for building products that ...

with Corporate Investment Bank Technology, Global Technology, and other Lines of Business to develop contemporary and innovative engineering methods. Job responsibilities Actively engage with development teams to use, develop, and improve Information Architecture standards, tools, and processes as part of the development process. Provides feedback and proposes improvements … Models. Adds to team culture of diversity, opportunity, inclusion, and respect. Required qualifications, capabilities, and skills Hands-on practical experience delivering system design, application development, testing, and operational stability Software Engineering experience in a data-centric role with exposure to how data is stored, moved, governed, and/ ...

supplier. Coordinate with business application suppliers to develop advanced knowledge of the applications used by the Bank, mainly the Core Banking, middleware and Bank API developments. Conduct routine user and system configuration tasks in response to change requests Advise on most suitable financial and accounting practices to implement … processes, data backup, system monitoring, and system-level troubleshooting and remediation. Conduct and/or coordinate advanced tasks such as systems integration, new reports development, patch deployment, and system upgrade. Coordinate with and manage relationships with systems suppliers. Relationship Management Build relationships with key business sponsors. Build relationships with ...

will shift to building innovative features and capabilities to deliver a market-leading experience for both Android and iOS users. Key responsibilities Native Mobile Development: Develop and maintain high-quality native mobile applications for iOS and Android using Swift and Kotlin. Performance Optimization: Optimize mobile apps for speed, memory … usage, and battery efficiency. API Integration: Work with REST/GraphQL APIs developed in FastAPI for real-time data synchronization. Collaboration & Feedback: Collaborate with cross-functional teams to align app features with CPMS functionalities. Testing & Debugging: Write and maintain automated tests to ensure application stability and quality. About ...

Head of Development & Digital Portfolio Location: London (hybrid - 4 days per week) Salary: Competitive + Performance Bonus and Benefits Package About the Role We are partnering with a prestigious private members' club seeking a Head of Development & Digital Portfolio to lead its digital product portfolio, development capability … platforms and lead procurement and onboarding when new solutions are required. Manage third-party delivery partners, ensuring services meet agreed standards and business requirements. Development & Technical Leadership Line manage the in-house CRM and API Developer, providing technical direction, performance management and professional development. Establish standards for code ...