126 to 150 of 152 GraphQL Jobs in London

handling, session management, data masking, and audit logging. Translate UX/UI designs into modular, reusable components aligned with enterprise design systems. Integrate front-end applications with REST/GraphQL APIs, WebSockets, and backend services. Collaborate with AI engineers, backend developers, and cloud architects to deliver end-to-end solutions. Ensure compliance with cybersecurity and data privacy standards through secure … in greenfield or innovation lab settings. Experience developing interactive UIs, dashboards, chat interfaces, and data visualizations for AI-powered tools. Skilled in integrating front-end applications with APIs (REST, GraphQL, WebSockets) and backend services. Deep understanding of front-end security practices (e.g., OWASP, CSP, input sanitization, role-based access). Familiarity with secure API design, token management, and data privacy More ❯

problem solve and quickly create awesome prototypes and user based solutions. Implement and maintain our design systems, component libraries and UI frameworks (e.g. ChakraUI, Tailwind). Develop and integrate GraphQL APIs to improve data efficiency and performance. Deploy containers using Docker, contributing to a smooth CI/CD workflow. Open to learning new technologies and best practices as the business … Deep expertise in modern web development technologies: TypeScript, ReactJS, NextJS, and NodeJS. Experience working with CSS, component libraries and design systems (ChakraUI, Tailwind or similar). Some knowledge of GraphQL for API development and integration. Proficiency with Docker and containerisation. A continuous learning mindset and adaptability in a fast-paced, evolving startup environment. Genuine excitement at the opportunity to work More ❯

offered by AWS like DynamoDB. We're big fans of using the right tool for the job. The main product frontend is all Typescript/React that talks to GraphQL backends. Other parts of the business use React/NextJS or even Svelte. We've spent time looking at maturing technologies like Web Components and have some ideas on improving … and Facebook, but we also envision integrations with systems like eBay messages or Apple/Google app stores. We'll be able to process any kind of communication. New GraphQL API backends. Strong experience with PHP Strong experience with RDMS (we use MySQL). Experience building SPA's with React and Typescript. Experience with AWS is a bonus. You should More ❯

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products. Initially it will be a five-month contract More ❯

share your work early and you're 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! If you're passionate More ❯

Group platforms Collaborate with engineers, product managers, and designers to deliver high-quality, user-centric features Contribute to full-stack development, including backend services in Kotlin/Java and GraphQL APIs Build tooling and reusable components for partners to easily integrate with our ad platform Take ownership of projects from ideation to deployment, with a strong focus on performance and … clean code principles Excellent problem-solving and analytical skills Strong communication skills and ability to collaborate with distributed teams Experience with Kotlin, Java, or other backend languages Familiarity with GraphQL and building RESTful APIs Exposure to CI/CD tools like Jenkins, Git, Docker, or TeamCity Experience in Agile/Scrum environments Background in advertising technology or travel tech is More ❯

vendors to create high-quality, user-friendly applications that directly influence trading performance. What You’ll Be Doing Building UIs with modern tech such as React, ES6, Node.js, TypeScript, GraphQL, SQL/NoSQL, Redux, CSS-in-JS, Webpack, Jest, Enzyme Delivering high-quality, well-tested, and maintainable code Collaborating with internal stakeholders to plan, coordinate, and gather feedback Contributing to … engineering experience 2+ years’ recent, hands-on React development experience (coding, testing, debugging, automation) Proven experience building data-rich, user-friendly JavaScript/HTML/CSS applications Exposure to GraphQL (desirable) Experience deploying production applications (Azure, AWS, etc.) Strong understanding of CI/CD principles A problem-solving mindset with excellent troubleshooting skills If you’re a passionate front-end More ❯

to build products that can be used by anyone - so any exposure to building UI that meets WCAG accessibility requirements is advantageous. Our tech stack includes NestJS, Typescript, Python, GraphQL, MongoDB, and AWS. Technical Skills Proficient in Typescript Deep experience with building well architected and reusable components with React Experience building applications powered by GraphQL APIs A deep understanding of More ❯

You'll lead the migration from a legacy monolith to a modern microfrontend and Backend-for-Frontend (BFF) ecosystem, leveraging React, Next.js, TypeScript, and advanced communication protocols such as GraphQL and gRPC. What You'll Own Lead the design and implementation of scalable, performant, and maintainable frontend architectures that support diverse driver journeys and complex policy workflows. Drive innovation by … of architecting scalable frontend systems and migrating legacy codebases to modern frameworks. Deep understanding of accessibility standards (WCAG) and a passion for building inclusive user experiences. Experience working with GraphQL and gRPC APIs in production environments. Exceptional leadership and communication skills, comfortable mentoring engineers and influencing cross-functional teams. Strong advocate for engineering best practices, test-driven development, and continuous More ❯

handling, session management, data masking, and audit logging. Translate UX/UI designs into modular, reusable components aligned with enterprise design systems. Integrate front-end applications with REST/GraphQL APIs, WebSockets, and backend services. Collaborate closely with AI engineers, backend developers, and cloud architects to deliver end-to-end solutions. Ensure compliance with cybersecurity and data privacy standards through … in greenfield or innovation lab settings. Experience developing interactive UIs, dashboards, chat interfaces, and data visualisations for AI-powered tools. Skilled in integrating front-end applications with APIs (REST, GraphQL, WebSockets) and backend services. Deep understanding of front-end security practises (e.g., OWASP, CSP, input sanitization, role-based access). Familiarity with secure API design, token management, and data privacy More ❯

product team, contributing to wider engineering and business initiatives that help us further scale our products as we continue to grow. Our tech stack Mobile Typescript, React Native, Expo, GraphQL, Relay, Jest, React Testing Library, Maestro Web Typescript, React, NextJS, Redux Toolkit, SCSS Modules, React Testing Library, Cypress, Turborepo Backend/Infrastructure PHP 8 (Symfony), Kotlin, MySQL, RabbitMQ, AWS, Docker … worked on, products that have scaled from zero users to tens or hundreds of thousands (or more), and can apply what you learnt in new contexts You've used GraphQL in a production environment You've built and launched new products and grown the audience You have in-depth experience of mobile performance best practices and debugging You've employed More ❯

Role This is a hands-on React Native role, focused purely on mobile development (no web components). You'll be responsible for integrating two Python APIs (REST and GraphQL), optimising app performance, and contributing to new AI-centric features. The set-up is collaborative: pair programming, code reviews, and pragmatic engineering in a small, lean team. Key Responsibilities Build … and optimise React Native applications. Integrate with Python APIs (REST and GraphQL). Drive performance improvements: bundles, memory, startup, animations, offline. Participate in PR reviews and pair programming. Contribute to AI features (chatbots, scraping, retrieval systems). Manage store releases, updates, and monitoring. What's Needed 2-3+ years' commercial React Native experience. Strong skills in TypeScript, navigation, and … state management (Redux, Zustand, or React Query). Experience with performance profiling and optimisation in React Native Comfortable integrating REST and GraphQL APIs. Exposure to CI/CD, app store releases, and OTA updates (eg CodePush). Nice-to-haves: Native modules (Swift/Kotlin), app security, crash/analytics tools, or experience with chatbots/RAG systems. Package & Set More ❯

Role This is a hands-on React Native role, focused purely on mobile development (no web components). You'll be responsible for integrating two Python APIs (REST and GraphQL), optimising app performance, and contributing to new AI-centric features. The set-up is collaborative: pair programming, code reviews, and pragmatic engineering in a small, lean team. Key Responsibilities Build … and optimise React Native applications. Integrate with Python APIs (REST and GraphQL). Drive performance improvements: bundles, memory, startup, animations, offline. Participate in PR reviews and pair programming. Contribute to AI features (chatbots, scraping, retrieval systems). Manage store releases, updates, and monitoring. What's Needed 2-3+ years' commercial React Native experience. Strong skills in TypeScript, navigation, and … state management (Redux, Zustand, or React Query). Experience with performance profiling and optimisation in React Native Comfortable integrating REST and GraphQL APIs. Exposure to CI/CD, app store releases, and OTA updates (e.g. CodePush). Nice-to-haves: Native modules (Swift/Kotlin), app security, crash/analytics tools, or experience with chatbots/RAG systems. Package & Set More ❯

performance and efficiency. Which skills/traits contribute to your success? 5+ years of experience building scalable web applications. 3+ years production experience with NodeJS , TypeScript , ReactJS/NextJS , GraphQL & PostgreSQL. Experience working with Python is beneficial. Experience working in a product-driven , cross-functional team in a tech-driven startup. Excellent communication skills and fluent English. A proactive approach … ownership - you don't wait to be told what to do. 5+ years of experience building scalable web applications. 3+ years production experience with NodeJS , TypeScript , ReactJS/NextJS , GraphQL & PostgreSQL. Experience working with Python is beneficial. Experience working in a product-driven , cross-functional team in a tech-driven startup. Excellent communication skills and fluent English. A proactive approach More ❯

brands and our server-driven UI experience layer Collaborate with multiple engineering teams to enable co-development, reuse, and problem-solving Develop and test standard software applications using React, GraphQL, and related technologies Participate in code reviews to assess overall code quality and flexibility Apply software design principles, data structures, design patterns, and computer science fundamentals to write clean, maintainable … Bachelor's or Master's degree in a technical or related field, or equivalent professional experience Professional full-stack web development experience Proficient in React, TypeScript, Node.js, and Apollo GraphQL Passionate about building and refining high-performance web apps Familiar with associated technologies within the broader SDLC ecosystem (e.g., CI/CD, Git, GitHub Actions) Eager to learn and work More ❯

source of truth for patient data, in 4 weeks, picking up a large set of new technologies on the way (ground up built from low-level services like Appsync, GraphQL, not Twilio). Dennis built a lightning fast cloud document library for clinics in a few days, with If high growth delta and joining an elite scrappy crew is your … for patients. Our stack is currently entirely in JS/TS: Angular + Capacitor + Electron, React (internal tools), Amplitude (analytics), a fully serverless backend in AWS (Cognito, Appsync GraphQL, Lambda, DynamoDB). We have good functional & unit test coverage and CI/CD. Our stack is in a great place already: highly scalable, cost effective, good test coverage, easily 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 ❯

EC1V 9NR What you will be doing Language - Design, build, and maintain efficient, reusable, and reliable Ruby/Elixir code Polyglot - All our services are built-in Ruby, Elixir, GraphQL federation or Typescript, depending on which language best suits the solution Messaging - For communication, we use Kafka for events and gRPC or JSON for synchronous calls. Kubernetes - All our services … architecture and best practices Culture - Contribute to a healthy engineering culture of feedback and growth What we are looking for Technologies - Strong understanding of languages such as Elixir, Ruby, GraphQL or TypeScript Distributed Systems - You understand how to build, deploy and maintain a globally distributed system. Event-driven architecture - Knowledge of event-driven systems and tools/protocols like Kafka More ❯

About PointFive PointFive enables Continuous Cloud Cost Efficiency through Deeper Detection and Collaborative Remediation, enhanced by our DeepWaste detection engine. Join us in making the world of cloud optimization more efficient and actionable! Role Overview We're looking for a More ❯

design is a plus. Proven experience with React. Experience in CDN and edge caching. Specific experience with CloudFlare is a plus!. Understanding of accessibility and SEO. Familiarity with GraphQL and GraphQL libraries such as Relay or Apollo (or be willing to learn). About DICE DICE is based throughout Europe, North America, Australia and India, and is rapidly growing More ❯

Shopify APIs. Key Responsibilities Maintain and enhance a Laravel 9/10/11-based web application with PHP 8.x. Build and manage Shopify integrations via Admin REST and GraphQL APIs. Manage OAuth 2.0 flow for app installation, token generation, and secure Shopify API calls. Maintain role-based access control usingspatie/laravel-permission. Implement and monitor scheduled background tasks … and secure data compliance are enforced. Required Skills 3+ years of experience in full stack web development with Laravel and PHP 8.x. Proven experience with Shopify API integration (REST & GraphQL). Strong understanding of OAuth 2.0 authentication flows. Experience working with role-based access systems and multi-user logic. Familiarity with AWS infrastructure (EC2, RDS, S3), Linux/Ubuntu server More ❯

powers our marketing and analytics. This is a mission-critical role interfacing with Product, Marketing, and Creative teams. Our frontend is built with a modern stack including React, Next.js, GraphQL, and deployed via Vercel. With minimal legacy constraints, we're able to move quickly and maintain a high bar for performance and quality. This is an office based role, located … Euston London. We operate Monday to Friday, 9am to 6pm. WHAT YOU'LL WORK ON: Development of the customer-facing onboarding journey. Working with a tech-stack including:React,GraphQL,Typescript,Vercel Setting up and driving regular experimentation, advocating for A/B testing and data-driven decision making Continuous management of Meta Pixels, Google Ads Tags, and Google Tag … Act as a technical advocate for marketing to ensure full measurability and tracking fidelity. WHAT WE'RE LOOKING FOR: 5+ years in software engineering roles Strong experience in React, GraphQL, and TypeScript Familiarity with Vercel, Next.js, and modern CI/CD workflows Deep understanding of building customer-facing journeys (onboarding, checkout) Ability to communicate complex technical concepts to non-technical More ❯

days will be focusing on getting to know our HackerOnies. You will join your new squad and be onboarded - get to learn the technology stack (Ruby on Rails + GraphQL + ReactJS + many more). Within 60 days, you will have committed a bunch of code to our repositories and will start developing a knack for being a fast … 5+ years of experience in full-stack software engineering, especially within a SAAS environment, preferably with experience in Ruby on Rails, ReactJS and TypeScript, generative AI, ElasticSearch/OpenSearch, GraphQL Practical experience with GenAI and running LLM models in production Proven experience leading and delivering cross-functional projects from start to finish Strong track record of individual contributions to business More ❯

willing to bring innovative ideas to the table. Key Responsibilities Utilising a variety of markup languages to develop pixel-perfect, responsive web pages. Working with React/Next.js/GraphQL to build decoupled sites that pull content from a headless WordPress CMS. Ensuring web development is optimised for smartphones. Optimising web pages for maximum speed and scalability. Create documentation outlining … Taking the lead of front-end aspects of projects where necessary. Assisting more junior members of the front-end development team. Key Requirements Experience using React/NextJS/GraphQL to create headless WordPress websites. A minimum of 2 years experience in using PHP to render WordPress websites. Experience with custom post types, Gutenberg and the Advanced Custom Fields plugin. More ❯

needed Ability to make senior level contributions in TypeScript React Node 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) All the other More ❯