101 to 114 of 114 API Design Jobs in London

Expert Developer: Java experience (Spring Boot, Bazel, Maven) with a focus on distributed services and Kubernetes (GKE). System Designer: Strong skills in API design (gRPC, GraphQL, REST) and relational databases like PostgreSQL. Cloud Proficient: Hands-on experience with GCP services, including BigQuery and Cloud SQL. Security Minded ...

systems in production and 3–5 years of substantive software/platform engineering Deep JavaScript/Node.js skills Azure Fluency JSON data structures, REST API design, and complex semi-structured data Practical LLM application — RAG architectures, prompt engineering etc Comfort with both relational (MS SQL) and document (MongoDB ...

Acting as a senior technical authority, championing Wilmington s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches and system design • Proactively identifying and mitigating technical risks and support the CTO with technical due diligence for future acquisitions • Operating across multiple scrum teams, bridging project … architecture experience, providing the credibility to confidently interrogate system designs, integration strategies, and technical trade-offs • Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition • Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system ...

Acting as a senior technical authority, championing Wilmington’s composable, microservice-based platform strategy and making sound architectural decisions on integration approaches and system design • Proactively identifying and mitigating technical risks and support the CTO with technical due diligence for future acquisitions • Operating across multiple scrum teams, bridging project … architecture experience, providing the credibility to confidently interrogate system designs, integration strategies, and technical trade-offs • Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition • Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system ...

core of its product. This is a high-impact role where the graph + geospatial layer is the competitive advantage , not just infrastructure. Youll design, scale, and optimise a production-grade data platform handling complex, real-world relationships. Key Responsibilities Design and optimise Neo4j graph models and Cypher … Strong Neo4j + Cypher experience (production optimisation) Solid PostGIS/spatial SQL expertise Experience with graph xkybehq modelling and large-scale ETL pipelines Strong API design for data-heavy systems Nice to have: UK property data (UPRN), Kafka/event streaming, spatial data experience Details Remote: Europe time ...

that supports business critical functions across the business. My client have migrated significant services to the cloud and now requires a lead architect to design and build the next generation of solutions including core finance and HR technology landscape, automating data flows, integrating systems, supporting in the delivery … real-time reporting and analysis, whilst driving a more mature awareness to data architecture and governance across the business. Responsibilities: - Lead the design and delivery of integrations across technology platforms and solutions. - Produce architectural documentation (HLDs, LLDs, diagrams, support guides). - Ownership of integration and application architecture in alignment ...

share code with iOS. You’ll be joining a collaborative engineering group working on major new features, shaping technical discussions, influencing architecture and API design, and helping to evolve a category-defining product used across the UK, US and several new international markets launching in 2026. What they ...

team. You’ll be interfacing with the business regularly, so strong communication skills are important. Ideal person is tech first (Strong Python engineering fundamentals, API design) while getting exposure to modern tech across the stack such as UI's, messaging frameworks and data validation tools. Having the experience ...

Live platform Contributing to a shared transaction layer used across multiple products Collaborating with frontend and mobile engineers to deliver consistent experiences Key Responsibilities Design and build backend services end-to-end Contribute to platform and API design decisions Improve system performance and reliability Work within … evolving architecture with real production constraints Profile The Backend Engineer will have strong API and service development skills Experience working on transaction systems, payments, or eCommerce platforms is required Experience with GraphQL preferred Exposure to Elixir, Go, or similar backend technologies Ability to work effectively in ambiguous, fast-changing ...

Technology Team at easyJet Holidays. The team is a dynamic group of practical and pragmatic architects responsible for providing strategic technology decisions, providing solution design and being the custodians of architecture information across the organisation. Job Purpose As the Enterprise Architect for the Digital Domain, you will be responsible … working with our business on aiding ideation and discovery for key strategic Commercial initiatives. You will also be responsible for high level solution design for those key initiatives. The role will involve working with domain solution architects who are dedicated to solution design and the wider team comprising ...

moving beyond compliance to drive commercial value. Monitor platform performance and lead incident management alongside Engineering teams and external partners. Partner with Engineering on API design and authentication flows to ensure solutions are scalable and secure. Ensure strict adherence to Open Banking standards, maintaining strong controls and audit … across Engineering, Risk and Compliance to deliver customer-ready solutions. Skills & Experience: Significant experience with Open Banking (AIS & PIS) . Deep technical understanding of API architecture and authentication integrations. Proven track record of delivering Open Banking solutions within a UK regulated environment. A collaborative approach with a focus ...

help architect the infrastructure for the next generation of secure data collaboration. This is a high-autonomy role where you will own the technical design and lifecycle of production services used by some of the world’s largest pharmaceutical and data-intensive enterprises. Responsibilities for the Senior Software Engineer … Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits Design and evolve high-performance backend systems and APIs, primarily using Golang, with Python integrated for specific domain-driven logic. Build and operate software that bridges the gap between ...

help architect the infrastructure for the next generation of secure data collaboration. This is a high-autonomy role where you will own the technical design and lifecycle of production services used by some of the world’s largest pharmaceutical and data-intensive enterprises. Responsibilities for the Senior Software Engineer … Golang/Python) | Drug discovery Platform | Fully Remote, EU/UK | Base Salary Up to £110,000, plus early equity+benefits Design and evolve high-performance backend systems and APIs, primarily using Golang, with Python integrated for specific domain-driven logic. Build and operate software that bridges the gap between ...

widely-used charting library used by thousands of developers building data-intensive applications. This is core product engineering — focused on rendering, performance, correctness, and API design. This is not a typical frontend role. You’ll be working closer to a graphics engine than an application layer. What … APIs Solving performance-critical problems in Canvas and SVG Working on correctness and precision in data visualisation Taking features end-to-end — from design through to release Collaborating with senior engineers on a highly integrated visual system Optionally contributing to technical content, demos, or talks What they’re looking ...