26 to 50 of 88 GraphQL Jobs in the City of London

mentoring team members, while collaborating with globally distributed teams in the US, Ireland and India. Responsibilities: Design, develop, and maintain Java-based backend services using Spring Boot , REST/GraphQL , Kafka , PostgreSQL , and RabbitMQ . Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes , CI/CD pipelines , and legacy system migrations. Innovate across the stack, taking … closely with cross-functional teams, including product and engineering groups in the US, Ireland and India, to ensure alignment and execution. Build and deploy secure, resilient APIs (REST/GraphQL) and optimise the full software development lifecycle through automation. Requirements: 7–10+ years of professional experience in software engineering, with a strong focus on Java backend development . Solid understanding More ❯

experience Work in a culture that values collaboration, creativity, and innovation 🧠 Tech Stack Includes : TypeScript, React/SolidJS, Node.js, REST APIs, Cypress, Vercel/AWS 🎯 Bonus Points : Astro, Tailwind, GraphQL, Shopify, Figma, accessibility If you’re a Senior Full Stack Engineer skilled in Node/React & excited by the idea of blending technical excellence with creative impact in the music More ❯

of experience in software development, with a strong focus on eCommerce technologies. Have substantial experience working with Shopify’s development ecosystem, including Shopify Plus, Liquid, Storefront API, Admin API, GraphQL, Shopify Functions, and third-party app integrations. Are also substantially experienced in HTML/CSS/JavaScript, React, PHP, and AWS. Have a proven track record of leading a small More ❯

including tools like Jira Experience with using design tools such as Figma, Axure, or Sketch Experience with Kubernetes/OpenShift deployment is a plus Familiarity with Flutter/Electron, GraphQL is a plus Qualifications: Minimum of 6+ years in web development roles. Strong user experience focus, especially in monitoring dashboards. Proven UI deployment experience, with a background in version management. More ❯

designs that ensure cross-platform compatibility Translate wireframes and prototypes into polished, production-ready applications in collaboration with UX/UI designers Integrate front-end interfaces with REST and GraphQL APIs, as well as back-end systems Ensure high-quality, maintainable code through testing, debugging, and adherence to best practices Stay current with emerging UI/UX technologies to continuously More ❯

grade security protocols 🔧 Technical Stack You'll Lead AI/ML: TensorFlow, PyTorch, MLflow, NVIDIA Triton, custom financial LLMs Data: Kafka, Flink, Snowflake, ClickHouse, Neo4j, vector databases Backend: FastAPI, GraphQL, microservices, Docker, Kubernetes Frontend: React/Next.js, TypeScript, real-time dashboards, mobile apps Cloud: AWS/Azure multi-cloud, Terraform, DataDog monitoring Fintech: QuantLib, Bloomberg APIs, regulatory reporting systems 💼 What More ❯

Senior Fullstack Developer (React, Node.js) Salary: £75,000 - £95,000 Location: Hybrid in London. Senior Fullstack Developer - would you like the opportunity to work for a market leading organisation, currently delivering to over 150 countries worldwide? You will be joining More ❯

freedom to make technical decisions. You can either be a Lead already or a Senior with experience mentoring engineers + taking the lead on projects. Proficiency in NextJS (React), GraphQL, and TypeScript is required. Key Responsibilities: Design, develop, and maintain web applications using NextJS (React), GraphQL, and TypeScript Collaborate with cross-functional teams to define, design, and ship new features … the CTO is unavailable/off Qualifications: Experience in a Senior/Lead role with mentoring + project leadership Proven experience as a Software Engineer, particularly with NextJS (React), GraphQL, and TypeScript Strong understanding of web development principles and best practices. Familiarity with modern software development practices, including agile methodologies Excellent problem-solving skills and attention to detail Strong communication More ❯

high-impact team building the foundation for something big - and genuinely different. What you’ll be doing Building new features in React using Expo (must-have) Designing and developing GraphQL APIs and backend services in Node.js Scaling and maintaining a modern platform built on Kubernetes , serverless , and AWS Integrating external services and SDKs (authentication, payments, etc.) Improving observability, reliability, and … shaping the technical roadmap What you’ll bring: 5+ years of experience as a full stack engineer Expert-level skills in React (with Expo ) and Node.js Solid experience with GraphQL on both frontend and backend Experience working with modern cloud environments, preferably AWS Strong testing discipline and familiarity with automation and CI/CD A practical understanding of event-driven More ❯

Series-A Tech Start-up (Founders are ex-Revolut early hires) Location: UK-based - £80-100K (hybrid in London, 3 days a week) Skills: TypeScript, Vue, Node, AWS, GraphQL A rapidly growing Series-A tech start-up founded by two of Revolut's earliest hires is looking to hire several Senior Backend Leaning Fullstack Engineers experienced in TS, Vue More ❯

Experience building scalable front-end applications using Angular. Solid Solution Deisgn Experience. Nice-to-Have : Experience with Event-Driven Architecture using AWS services (SNS, SQS, EventBridge). Knowledge of GraphQL, WebSockets, or real-time data streaming. Exposure to DevOps and observability practices (e.g., Prometheus, Datadog, AWS CloudWatch, OpenTelemetry). Prior experience in leading distributed engineering teams. More ❯

Title: Software Engineer (Fullstack/Frontend leaning) Salary/Package: £80k-£90k + Equity Company Sector: Fintech (Sustainability) Tech: TypeScript, Node, React, Next, GraphQL Location: Central London (London Bridge/Bank) WFH/Hybrid: 2 days a week on site We're teaming up again! 🎉 Bounce is back partnering with one of our favourite customers — the same awesome fintech crew More ❯

Kanban environment. Requirements Proficiency in React, React Native, and Next.js is a strongly required. Proficiency in Frontend technology i.e. Javascript, Typescript, HTML, and CSS. Familiar with RESTful APIs and GraphQL Experience architecting web applications and supporting underlying CI/CD platforms. Consider the reusability of code, components, and module development while writing code. Experience mentoring junior engineers. Understands testing such More ❯

Visa sponsorship available * Fortnightly team dinners at customer restaurants Minimum requirements: * Proficient in TypeScript and NodeJS * Strong experience with containerised and serverless infrastructure (e.g. ECS, Lambda) * Confident working with GraphQL APIs , performance optimisation, and data design * Expertise in relational databases , especially PostgreSQL , including performance tuning * Exposure to or interest in AI technologies, including personal or side projects Bonus preferences: * PostgreSQL More ❯

Senior Product Engineer (React, Node.js) Salary: £75,000 - £95,000 Location: Hybrid in London. Senior Product Engineer - would you like the opportunity to work for a market leading organisation, currently delivering to over 150 countries worldwide? You will be joining More ❯

Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of More ❯

team of 13. The ideal candidate will have 3-4 years' experience with a strong technical foundation, combined with a business and product-focused mindset. Proficiency in NextJS (React), GraphQL, and TypeScript is required. Key Responsibilities: Design, develop, and maintain web applications using NextJS (React), GraphQL, and TypeScript Collaborate with cross-functional teams to define, design, and ship new features … in code reviews, pair programming, and collaborative development practices Troubleshoot and debug issues to improve performance and reliability Qualifications: Proven experience as a Software Engineer, particularly with NextJS (React), GraphQL, and TypeScript Strong understanding of web development principles and best practices. Familiarity with modern software development practices, including agile methodologies Excellent problem-solving skills and attention to detail Strong communication … portfolio management Collaborate with a talented and passionate team Competitive salary and generous equity Hybrid working arrangement If you're a Fullstack Engineer with strong experience using Next.js, TypeScript, GraphQL and are looking for an exciting challenge in a growing start-up, then this could be a great option for you. More ❯

team of 13. The ideal candidate will have 3-4 years' experience with a strong technical foundation, combined with a business and product-focused mindset. Proficiency in NextJS (React), GraphQL, and TypeScript is required. Key Responsibilities: Design, develop, and maintain web applications using NextJS (React), GraphQL, and TypeScript Collaborate with cross-functional teams to define, design, and ship new features … in code reviews, pair programming, and collaborative development practices Troubleshoot and debug issues to improve performance and reliability Qualifications: Proven experience as a Software Engineer, particularly with NextJS (React), GraphQL, and TypeScript Strong understanding of web development principles and best practices. Familiarity with modern software development practices, including agile methodologies Excellent problem-solving skills and attention to detail Strong communication More ❯

Front End Software Engineer/React UI JavaScript, React, typescript, Redux, NodeJS, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API - Perm Role – London – Hybrid £80'000- £100'000 plus bonus Harrington Starr has partnered up with a Global Exchange company that are looking to hire a UI Developer with expert Software Engineering skills using JavaScript, React/Redux … the Front End Solid JavaScript programming Strong experience with Systems design and development. Experience with Typescript Experience with Data Visualisation development. HTML and C55 Experience with Webpack Experience with GraphQL RESTful API development. BSc with Computer Science, Engineering or Mathematics. More ❯

they’re all about modern JavaScript and TypeScript, utilising Node and React within a “you build it, you run it environment " with AWS and Kubernetes. Can you also speak GraphQL-oquently about APIs? The platform has recently fully migrated over to using GraphQL, so any experience here would also be a great plus. This is a unique combination of staying More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £120000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer … Key Tech Stack: Extensive React UI Development. Solid JavaScript programming Experience with Typescript Experience with Data Visualisation development. HTML and C55 Experience in Real Time trading application. Experience with GraphQL RESTful API development. BSc with Computer Science, Engineering or Mathematics. With a generous Basic Salary there is also a very healthy bonus scheme available including a number of other benefits. More ❯

growth potential. They're looking for a number of bright, engaging software engineers familiar with or interested in working with their tech stack. Tech stack: Python (FastAPI, Starlette) | gRPC | GraphQL | PostgreSQL | DynamoDB | AWS | EKS | CI/CD pipelines What you’ll be doing: ✅ Contributing to the design and development of scalable backend systems ✅ Working across rotating product squads with full … backend engineering experience (ideally Python, but open to other languages) 🔹 Experience in microservices or modern service architecture 🔹 Excellent communication skills and willingness to take initiative Nice to have: 🟢 FastAPI, GraphQL, gRPC 🟢 Experience with AWS and CI/CD tooling This is a great opportunity to join a profitable, product-focused company with ambitions to scale in 2025. You’ll be More ❯

/plugins Headless CMS Web markup, including HTML5, CSS, and JavaScript/TypeScript Knowledge and experience of Git Sass, Webpack, and CSS frameworks like Tailwind React/NextJS and GraphQL Working with Restful APIs HTML emails DNS records Linux command line Experience with Vercel SEO principles Experience in an agency environment Experience Requirements: Agency: 2 years (required) WordPress: 2 years … of working with an agency or start-up. If this sounds like it its of interest, apply now! Keywords: Senior Web Developer, Senior Developer, WordPress, Headless CMS, React, Next.js, GraphQL, Full Stack Developer. More ❯

Communicate effectively with technical & non-technical stakeholders. Ability to work remotely. Desirable Experience: Backend Development Node JS AWS JSON Web Tokens with AWS. Keywords: Front End Developer, React.js, React, GraphQL, Tailwind, Typescript, Tailwind, Code Versioning Tools, Front End Developer, Fully Remote, Permanent, T6/MN/115109. More ❯

trading (preferred but not essential) Nice to haves (in order of priority – at least one or two is needed): AWS services – S3, ECS, AppSync PostgreSQL or NoSQL database experience GraphQL or REST APIs TypeScript React or Svelte (not essential, but helpful for collaboration) To apply – click the link or for a faster response, email Barry.Ansell@HarringtonStarr.com More ❯