51 to 67 of 67 GraphQL Jobs in London

mobile apps that real users depend on. Strong with React Native or Flutter (native iOS/Android a plus). Experience integrating REST/GraphQL APIs, payments, maps, and real-time features. A feel for mobile UX and an eye for detail. Self-directed, curious, and comfortable owning whole features. ...

experienced building extensions/scripts. Experience with developing and maintaining web‐focused tooling and automation (Burp extensions, custom scanners, authenticated API fuzzers, GraphQL mutation explorers, Puppeteer/Playwright scripts). Experience with source code reviewing for control flow and security flaws A passion for constructively break things Want ...

Job Description Responsibilities Customer Delivery Lead: end‐to‐end solution development for multiple high‐stakes customer deployments; manage technical strategy, design quality, and roadmaps for Agentic AI rollouts at enterprise scale. Primary technical point of ...

deploy intelligent agent solutions that solve real business problems. You will collaborate with customers, design end-to-end pipelines, integrate with REST/GraphQL, and help shape AI strategy from concept to production. #J-18808-Ljbffr ...

happy to put something out there when it’s ~70% done. Bonus points Experience in fintech or the payments industry. Familiarity with GraphQL and the Solana blockchain (or other blockchain technologies). An eye for smooth, delightful animations and UI polish. Not ticking every box? That’s totally okay ...

/or Android, with strong fluency in Swift and/or Kotlin and the surrounding ecosystem - offline sync, push, auth, persistence, networking, REST/GraphQL) - and credible breadth beyond it Demonstrated breadth: you've worked seriously in at least one of {web frontend, backend services, data/infra, platform tooling ...

Senior Backend Developer Full-time Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We ...

languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J-18808-Ljbffr ...

shared transaction and ledger layer Supporting integration of newly acquired platform capabilities Designing APIs for frontend, mobile, and seller platform use cases (REST and GraphQL) Handling complex transaction logic including: Currency conversion Fees and commissions Reconciliation Refunds and adjustments Supporting region-specific requirements such as tax, shipping, and compliance Improving … multiple services, languages, and architectural patterns. The role combines hands-on ownership of backend services with architectural leadership responsibilities. Elixir and the Phoenix framework GraphQL PostgreSQL Redis WebSockets and Phoenix Channels for real-time communication Message-driven architectures and asynchronous processing patterns Cloud-native infrastructure supporting globally distributed workloads ...

applications are performant, accessible, secure, and compliant with relevant standards and regulations.**Platform & Integration*** Lead the integration of mobile platforms with backend services using GraphQL APIs, and third-party systems to deliver seamless end-to-end user experiences.* Collaborate with backend, platform, and DevOps teams to ensure well-designed interfaces … React Native is **essential**, with a strong grasp of front-end **design patterns** and **best practices in mobile SDLC.*** Proven experience of **REST/GraphQL API** integration with mobile applications* Solid understanding of mobile application fundamentals: **iOS/Android app lifecycle, performance constraints and release management*** Proven **hands-on software ...

TypeScript, alongside knowledge of the full Software Development Life Cycle (SDLC). Remuneration is competitive, ranging between £110K and £120K. A good understanding of GraphQL or Neo4j is a significant advantage. #J-18808-Ljbffr ...

regular 1:1s, own performance and growth conversations, and participate in hiring.### Skills Required* Backend Systems* Web Platform* Data Platform* C#* .NET* SQL* GraphQL* REST APIs* Reporting Systems* AI Systems* Agentic Systems* Technical Leadership* People Management* Distributed Systems* Cloud* Physical Data Centers* Petabyte-scale Data* Machine Learning* Advanced Visualizations* Interactive … data platform of meaningful scale. Experience with C#/.NET and SQL is a strong plus, though not required. Experience designing or building GraphQL and/or REST APIs is a plus. Experience with reporting or scheduled-reporting systems is a plus. Experience building AI or agentic systems ...

We are seeking an experienced Lead Mobile Engineer to support our clients in the strategy, development, and execution of mobile applications across platforms. This role will involve leading a high‐performing mobile engineering team in ...

Vitals and reusable platform capabilities. A day in the life Build and evolve customer‐facing and internal web applications using Next.js, React, TypeScript and GraphQL, delivering scalable solutions across multiple products and business domains. Shape the future of our frontend platform by driving architecture decisions, building reusable components and shared … Excellent communication and stakeholder management skills, with the ability to influence technical direction, mentor others and drive cross‐functional initiatives. Added bonus Experience with GraphQL and observability tooling such as Honeycomb or Grafana to build, monitor and maintain reliable production applications. Building customer acquisition, conversion and growth‐focused web experiences ...

Job Title: Privileged Access Management (PAM) Security Engineer Location: Livingston Salary: Competitive Why Apply? A leading technology and media organisation is looking for a Privileged Access Management (PAM) Security Engineer to strengthen its cyber security ...

Senior Product Engineer, React Native Location: Nine Elms, London. Full time, hybrid with at least 3 days a week on site. You’ll need the right to work in the UK and be based in ...

Principal Product Engineer, React Native Location: Nine Elms, London. Full time, hybrid with at least 3 days a week on site. You'll need the right to work in the UK and be based in ...