251 to 275 of 275 GraphQL Jobs in London

time analytics and insights. Technical Expertise Independently develop and maintain high-performance backend services using Go (Golang). Design and implement RESTful APIs and GraphQL endpoints to support front-end applications. Process and optimize large-scale data pipelines for real-time analytics and reporting. Write clean, maintainable, and efficient code … a culture of continuous improvement, knowledge sharing, and mentorship. Required Qualifications Advanced proficiency in Go (Golang) for backend development. Strong experience with RESTful APIs, GraphQL, and event-driven architectures. Deep understanding of data processing, analytics, and real-time event streaming. Expertise in PostgreSQL, AWS and Kubernetes. Proficiency in monitoring tools More ❯

A Purpose-Driven Development Agency in the Health and Wellbeing Sector Hybrid/London, UK About Us Fat Fish Digital is a digital agency specialising in creating innovative solutions for the health and wellbeing sector. Our mission is to improve 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 ❯

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 ❯

At Thredd, we are seeking a highly motivated Software Engineer with expertise in C# and Python to join our dynamic team in the fintech sector. The ideal candidate will be responsible for developing and delivering innovative issuer processing solutions using More ❯

level contributions writing in TypeScript React PostgreSQL Bonus points for experience in high velocity and technically challenging roles Our tech stack Frontend: React Typescript GraphQL (Apollo Client) Playwright Jest Storybook + Chromatic Mantine GCP (Cloud Run) Backend: Typescript PostgreSQL GraphQL Yoga Jest Auth0 GCP (Cloud Run, Cloud SQL, Cloud Storage More ❯

to Auth0 (or similar), with social login + MFA Data governance: Apply labelling to Postgres, S3 and BigQuery data Web security hardening: Audit React, GraphQL and FastAPI layers to eliminate XSS/CSRF and strengthen CSP Static analysis remediation: Triage and address SAST findings RBAC rollout: Finalise and implement role … based access controls Audit logging: Structure and surface user action logs in the app 💻 Tech Stack Frontend: React, Apollo GraphQL Backend: FastAPI (Python) Infra/Security: GitHub Actions, SAST tools, Auth0 (or equivalent), RBAC, CSP ✅ What We’re Looking For Must-haves: 5+ years building production-grade web apps (React … + Python) CI/CD experience with microservices Hands-on with modern auth providers (Auth0, Kinde, Okta, Cognito), including RBAC Familiarity with GraphQL Strong understanding of OWASP Top 10, CSP, CSRF, and XSS mitigation Confident written communicator – clear documentation and stakeholder updates are a must Bonus points for: Experience migrating More ❯

to Auth0 (or similar), with social login + MFA Data governance: Apply labelling to Postgres, S3 and BigQuery data Web security hardening: Audit React, GraphQL and FastAPI layers to eliminate XSS/CSRF and strengthen CSP Static analysis remediation: Triage and address SAST findings RBAC rollout: Finalise and implement role … based access controls Audit logging: Structure and surface user action logs in the app 💻 Tech Stack Frontend: React, Apollo GraphQL Backend: FastAPI (Python) Infra/Security: GitHub Actions, SAST tools, Auth0 (or equivalent), RBAC, CSP ✅ What We’re Looking For Must-haves: 5+ years building production-grade web apps (React … + Python) CI/CD experience with microservices Hands-on with modern auth providers (Auth0, Kinde, Okta, Cognito), including RBAC Familiarity with GraphQL Strong understanding of OWASP Top 10, CSP, CSRF, and XSS mitigation Confident written communicator – clear documentation and stakeholder updates are a must Bonus points for: Experience migrating More ❯

Hiring: Fullstack Engineer (Contract) 💰 Up to £600/day (Inside IR35) 📍 Hybrid (UK-based) | ⏳ 6-Month Contract 🌐 Tech Stack: Node.js | React | TypeScript | Next.js | GraphQL | AWS We're on the lookout for a talented Fullstack Engineer to join a dynamic and fast-paced engineering team working on a cutting-edge data … to deliver high-performance, secure, and scalable solutions. What You'll Bring: ✅ Strong hands-on experience with Node.js, React, and TypeScript ✅ Familiarity with Next.js, GraphQL, and cloud platforms (preferably AWS) ✅ A DevOps mindset and an eye for clean, test-driven, maintainable code ✅ Experience working in agile teams and contributing across More ❯

to delight fitness enthusiasts. Create and optimise serverless Back End services with Node.js and AWS (Lambda, API Gateway, DynamoDB, etc.). Integrate APIs using GraphQL and contribute to web components with Next.js . Work with designers, product managers, and engineers to launch user-centric features. Write clean, maintainable code and … of experience building mobile apps with React Native . Proficiency in Node.js and AWS serverless architecture (eg, Lambda, API Gateway, DynamoDB). Experience with GraphQL and Next.js . Proven work in a consumer-focused product company (eg, mobile-first startups in fitness, wellness, or on-demand services). Ability to More ❯

data pipelines, and supporting front-end web applications with real-time analytics and insights What you'll do: Design and implement RESTful APIs and GraphQL endpoints to support front-end applications. Process and optimize large-scale data pipelines for real-time analytics and reporting. Write clean, maintainable, and efficient code … and security best practices in backend services. What you'll bring: Advanced proficiency in Go (Golang) for backend development. Strong experience with RESTful APIs, GraphQL, and event-driven architectures. Deep understanding of data processing, analytics, and real-time event streaming. Expertise in PostgreSQL, AWS and Kubernetes. Proficiency in monitoring tools More ❯

apps Tailwind CSS – implement and evolve modern, utility-first styling systems Web3 frontend tooling – integrate wallet connections, contract interactions, and blockchain APIs REST and GraphQL APIs – connect the frontend to backend services in a serverless environment Mobile-first design – optimise performance, responsiveness, and accessibility across devices UX/UI collaboration … production-grade consumer applications Tailwind CSS and modern component-based architecture Frontend integration with smart contracts, wallets or blockchain APIs REST and/or GraphQL – confident in connecting frontend to modern backends State management, data fetching patterns, and clean, testable UI components Nice to have Experience with blockchain or dApps More ❯

apps Tailwind CSS – implement and evolve modern, utility-first styling systems Web3 frontend tooling – integrate wallet connections, contract interactions, and blockchain APIs REST and GraphQL APIs – connect the frontend to backend services in a serverless environment Mobile-first design – optimise performance, responsiveness, and accessibility across devices UX/UI collaboration … production-grade consumer applications Tailwind CSS and modern component-based architecture Frontend integration with smart contracts, wallets or blockchain APIs REST and/or GraphQL – confident in connecting frontend to modern backends State management, data fetching patterns, and clean, testable UI components Nice to have Experience with blockchain or dApps More ❯

internal and external APIs and business logic we use to run the ShipServ platform. We run a MERN stack in a Typescript monorepo with GraphQL APIs and we are looking for a developer with experience and competency in those technologies. Write clean code for new features, supported by comprehensive unit … MERN stack company Currently working as a mid or senior developer Experience working in a monorepo would be an asset Knowledge in NodeJs, Typescript, GraphQL, MongoDB, MacOS, Functional + OOP coding experience Why Marcura? Here’s What We Offer: Competitive Salary and Bonus : We reward your expertise and contributions. Flexible More ❯

internal and external APIs and business logic we use to run the ShipServ platform. We run a MERN stack in a Typescript monorepo with GraphQL APIs and we are looking for a developer with experience and competency in those technologies. Write clean code for new features, supported by comprehensive unit … MERN stack company Currently working as a mid or senior developer Experience working in a monorepo would be an asset Knowledge in NodeJs, Typescript, GraphQL, MongoDB, MacOS, Functional + OOP coding experience Why Marcura? Here’s What We Offer: Competitive Salary and Bonus : We reward your expertise and contributions. Flexible More ❯

with design and product teams to evolve and implement a design system that supports consistency across products Working closely with backend engineers to integrate GraphQL APIs Delivering responsive, performant frontends that work seamlessly across devices Contributing to an engineering culture focused on quality, usability, and continuous improvement What They’re … Strong experience in React and Next.js in a production environment Hands-on experience working with design systems and creating reusable UI components Proficiency with GraphQL for data fetching Comfortable deploying and managing frontends in a cloud-based environment , ideally AWS Good eye for detail and passion for building intuitive, elegant More ❯

with design and product teams to evolve and implement a design system that supports consistency across products Working closely with backend engineers to integrate GraphQL APIs Delivering responsive, performant frontends that work seamlessly across devices Contributing to an engineering culture focused on quality, usability, and continuous improvement What They’re … Strong experience in React and Next.js in a production environment Hands-on experience working with design systems and creating reusable UI components Proficiency with GraphQL for data fetching Comfortable deploying and managing frontends in a cloud-based environment , ideally AWS Good eye for detail and passion for building intuitive, elegant More ❯

data model questions, xConnect (Excel plug-in) installation and troubleshooting, Snowflake questions and similar Educate clients on core foundational concepts in leveraging Chronograph's GraphQL and Snowflake APIs Become a subject matter expert on technical use-cases and common client questions Triage and respond to product questions and bug reports … Familiarity with modern programming and software development best practices Robust understanding of relational databases, and preferably experience with PostgreSQL Experience with web technologies like GraphQL or REST APIs Background using monitoring tools like Sentry and Grafana Experience with and/or substantial interest in database technologies, including Snowflake Exceptional written More ❯

in frontend UI development. Excellent communication and collaboration skills. BSc/BA in Computer Science, Engineering, or a related field preferred. Experience working with GraphQL and especially Apollo GraphQL is a big plus. A passion for DeFi and Web3. More ❯

Corp Start-Up | Net-Zero Carbon Up to £125,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Node, React, GraphQL & GCP Staff Product Engineer – We are working with an amazing Carbon Neutral, B-Corp certified start-up to find them a Staff Product Engineer to … design discussions to solve real world problems and deliver on business goals. The tech stack is predominantly Typescript, Node and React on GCP, Kubernetes, GraphQL with some Rust although they are open to engineers from any background. You should apply if: You’re excited to build sustainable, net-zero products … Corp Start-Up | Net-Zero Carbon Up to £125,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Node, React, GraphQL & GCP More ❯

Corp Start-Up | Net-Zero Carbon Up to £125,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Node, React, GraphQL & GCP Staff Product Engineer – We are working with an amazing Carbon Neutral, B-Corp certified start-up to find them a Staff Product Engineer to … design discussions to solve real world problems and deliver on business goals. The tech stack is predominantly Typescript, Node and React on GCP, Kubernetes, GraphQL with some Rust although they are open to engineers from any background. You should apply if: You’re excited to build sustainable, net-zero products … Corp Start-Up | Net-Zero Carbon Up to £125,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Node, React, GraphQL & GCP More ❯

I am working with a client who is looking for a Lead Developer with Ruby on Rails, React, and GraphQL experience, who can lead a team and work closely with clients to understand their requirements. My client is a forward-thinking and growing consultancy based in London, specialising in long … Collaborate with clients to understand their needs and deliver tailored solutions Drive the development of cutting-edge applications using Ruby on Rails, React, and GraphQL Ensure the highest standards of code quality and performance Requirements: Proven experience with Ruby on Rails, React, and GraphQL Strong leadership and team collaboration skills More ❯

I am working with a client who is looking for a Lead Developer with Ruby on Rails, React, and GraphQL experience, who can lead a team and work closely with clients to understand their requirements. My client is a forward-thinking and growing consultancy based in London, specialising in long … Collaborate with clients to understand their needs and deliver tailored solutions Drive the development of cutting-edge applications using Ruby on Rails, React, and GraphQL Ensure the highest standards of code quality and performance Requirements: Proven experience with Ruby on Rails, React, and GraphQL Strong leadership and team collaboration skills More ❯

Lead Londons Fibre Revolutionaries! They're not just building a business fiber network; they're creating a revolution in London's digital infrastructure. They believe reliable fiber internet is as essential as basic utilities, and they're on a mission More ❯

tooling that power how content is delivered from our CMS to front-end experiences. The Graph team owns our Optimizely Graph product, built on GraphQL, enabling performant and composable content delivery and search across the Optimizely suite. We are looking for a technical, detail-oriented product leader who thrives in … complex systems, understands the developer and implementer persona deeply, and has experience with front-end frameworks, GraphQL, and API design. This role is central to how Optimizely CMS is adopted and extended by customers and partners across the globe. Job Responsibilities Product Development: Lead the end-to-end product lifecycle … and external stakeholders. Create and maintain roadmaps, write Product Requirements Documents (PRDs), and set a predictable cadence for delivery. Strategy & Vision: Drive forward our GraphQL-based content delivery and search infrastructure. Understand content modeling, query performance, and integration challenges in composable architectures. Develop a clear and compelling vision for the More ❯