1 to 25 of 50 GraphQL Jobs in London

build, and optimize this infrastructure. Technology Stack (Current & Expected)Backend Node.js (Primary) NestJS/Express.js Python (Microservices/Risk modules) REST & Webhook-based APIs GraphQL (where required) Database PostgreSQL MongoDB Redis (Caching & Queue management) Messaging & Queues Kafka/RabbitMQ Bull Queue (Node-based background jobs) Cloud & Infrastructure ...

collaboration Back-end Experience with some of the following, or a strong willingness to learn: Node.js – building scalable, maintainable services APIs – RESTful design (GraphQL a plus), authentication, validation, rate limiting Databases – PostgreSQL/MySQL, schema design, indexing, query optimisation ORMs – Sequelize or similar (migrations, associations, transactions) Business logic – handling payments ...

with React, Tailwind CSS, Node.js, and TypeScript . Solid understanding of microservices and modular architecture . APIs, Data & Integrations Strong experience with RESTful and GraphQL APIs . Hands-on experience with middleware and orchestration tools such as Tachyon, Temporal, or similar platforms. Experience with data ingestion, pipeline management, and distributed ...

high-quality React Native application. Architect scalable mobile solutions that meet the demands of financial applications (security, performance, reliability). Integrate with RESTful and GraphQL APIs and collaborate closely with backend teams. Optimize app performance, including memory usage, load times, and smooth UI interactions. Implement high-security standards such ...

Full Stack Engineer - GraphQL - TypeScript | Cloud-Native | Contract (Outside IR35) 📍 West London HQ | Hybrid (2 days on site) | Outside IR35 | 6-month initial contract (extensions likely) GraphQL Full Stack Engineer - TypeScript | Cloud-Native | Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial … extensions highly likely) GraphQL-focused Full Stack Software Engineer who can design, implement, and evolve high-performing APIs that scale. If crafting elegant GraphQL schemas, building robust TypeScript/Node.js services, and deploying to cloud-native environments is your idea of fun, this is your next project. Suited ...

Frameworks: C#/.NET Core, React • Databases: SQL & NoSQL • Cloud & Infrastructure: AWS, Azure, GCP, Docker, Kubernetes, CI/CD • Messaging & APIs: Kafka, RabbitMQ, RESTful, GraphQL 2-stage interviews taking place next week! Don't hesitate to apply to this one. Message me for more details ...

evolution of our mobile technology stack. What You'll Do Build and maintain a high-quality React Native application. Integrate with RESTful and GraphQL APIs. Diagnose, debug, and resolve issues across the mobile stack, ensuring a smooth and reliable user experience. Participate in code reviews, offering constructive feedback and helping ...

applications Building and maintaining high‐performance APIs and distributed microservices Solving problems around scalability, reliability, security, and automation Working with modern API protocols including GraphQL and gRPC Enhancing the platform that connects both traditional and on‐chain financial services Must‐have experience: Strong backend engineering background with deep coding experience ...

Agile environment Strong expertise in C# and modern .NET/.NET Core Experience building distributed, event-driven systems API design and development (REST, GraphQL) Relational databases (SQL Server, MySQL, or similar) Cloud platforms such as AWS or Azure Solid understanding of the full software development lifecycle Pragmatic, delivery-focused approach ...

Behavior Driven Development (BDD) and Waterfall) Knowledge of any or all of the following technologies is desired: Kafka, Postgres, Golang, Git, gRPC, Docker, GraphQL Experienced in continuous integration (CI), continuous deployment (CD) and continuous testing (CT), including tools such as Jenkins, Rally and/or JIRA and version control such ...

TypeScript for Back End development. Proficiency with modern Front End frameworks (React, Next.js, Vue, or similar). Experience with RESTful APIs and/or GraphQL design and integration. Familiarity with data pipelines, version control (Git), and CI/CD workflows. Understanding of responsive design, cross-browser compatibility, and web performance ...

culture, encouraging peer to peer feedback and evolving healthy, curious and humble teams. Tech Stack: Python, Javascript/Typescript, React/React Native, AWS, GraphQL, Snowflake, Airflow, DDD. This is an incredible opportunity for a Senior Software Engineer to join a unique company as they embark on a period ...

assisted development tools Strong knowledge of cloud AI and ML platforms and associated architecture patterns Experience designing and managing APIs including REST and GraphQL Strong understanding of microservices and serverless architectures Practical experience with DevOps and MLOps practices including CI/CD pipelines Knowledge of security frameworks, identity management ...

models. Learn, use, and improve best practices and processes for high-quality software development. Our technology stack includes Python 3.11, PostgreSQL, Django, mypy, GraphQL, Docker, Redis, Typescript, React. Qualifications We’re only considering exceptional candidates, with the following pre-requisites: 5+ years of professional software development experience. 2+ years ...

stateless, SPA and others Advanced knowledge of React and React Native Eco system and AWS technology stack. Strong API/integration experience: REST/GraphQL, auth flows, contract design and resilience patterns Well versed in latest CI/CD practises and tools, deployment methodologies and experienced in tools to enforce ...

GraphQL Full Stack Engineer - TypeScript | Node.js| Contract (Outside IR35) Location: West London (Hybrid - 2 days/week on site) Contract: 6 months initial (extensions highly likely) Start: ASAP Eligibility: UK-based candidates only Rate: Market rates GraphQL-focused Software Engineer who can design, implement, and evolve high-performing APIs that … scale. If crafting elegant GraphQL schemas, building robust TypeScript/Node.js services, and deploying to cloud-native environments is your idea of fun, this is your next project. The Role Design & develop GraphQL API services from schema, supergraph, subgraph, GraphQL federation, design to production integration, ensuring performance, flexibility, and maintainability. ...

Golang is a plus. Proficient with both SQL and NoSQL databases, and experience with data warehousing solutions. Demonstrated experience building robust APIs (REST, GraphQL) and operating in modern cloud environments (GCP preferred), using Kubernetes, Docker, CI/CD, and observability tools. Skills/Experience: Excellent communication and strong level ...

architecture, and performance optimization. Key Responsibilities Backend Development Develop and maintain scalable backend services using Go (Golang). Design and implement RESTful APIs and GraphQL endpoints. Build APIs for data ingestion and service-to-service communication. Write clean, maintainable, and efficient production-level code. Implement authentication and security best practices ...

105k | Lead - up to 125k Location : East/Central London (x4 days per week onsite) Tech stack includes : NodeJS, TypeScript, React, PostgreSQL, GraphQL, AWS, GitHub Actions, Pulumi. Current team size : x2 Engineers (plan is to grow to 4 in total) We're working with a profitable Tech4Good startup company, their ...

software development lifecycle Write clean, maintainable, and high-quality code following best practices What We Need From You Strong experience with React, React Native, GraphQL, and REST APIs Solid understanding of web and mobile platforms, including performance optimization Knowledge of modern JavaScript (ES6+) and revision control systems Team player with ...

Forward Deployed, Solutions, or Full-Stack Engineering Strong Python expertise Proven experience delivering production solutions directly with customers Strong REST and/or GraphQL API experience Excellent problem-solving and systems thinking Strong communication skills in cross-functional environments Degree in Computer Science (or equivalent practical experience) The Profile ...

broader team to align on priorities You're not alone, but trusted to drive things forward The stack (high level) Backend: Node.js, PostgreSQL, GraphQL, TypeScript Frontend: SolidJS, TypeScript Infrastructure: AWS, Terraform Tools: Cursor, Linear, Notion, GitHub Preferred: TypeScript & Node.js experience But not mandatory: We care more about good engineering judgment ...

aligned with best practices Contribute to performance optimisation and secure coding standards Requirements Strong experience with React and/or React Native Experience with GraphQL and RESTful APIs Solid understanding of web fundamentals (DOM, CORS, browser storage, request/response lifecycle) Strong knowledge of mobile platforms, including native modules ...

HTML5, CSS3, JavaScript, React API integration with NextJs frontend Proficiency in working with headless CMS and knowledge of Strapi Understanding of headless architecture and GraphQL knowledge Knowledge of Linux server maintenance, creating staging environments, deploying websites to production. Server-side rendering and static site generation Experience developing responsive design websites. ...

Mobile architecture approaches and design patterns including micro front ends, module federation, stateless, SPA and others Strong API/integration experience: REST/GraphQL, auth flows, contract design and resilience patterns Well versed in latest CI/CD practises and tools, deployment methodologies and experienced in tools to enforce quality ...