1 to 25 of 564 GraphQL Jobs in London

high standards in user experience and coding practices, and collaborating closely with the Lead Product Engineer to architect and implement new product features. Your expertise in NodeJS, Typescript, Prisma, GraphQL, and relational databases will be essential in designing and developing robust APIs that align with their business goals. Join a company, where they prioritise your well-being and offer a More ❯

high-performance, distributed systems at scale. A strong understanding of modern dev practices like 12 Factor, CI/CD, and observability tools such as Datadog or Prometheus. Exposure to GraphQL APIs and WebSockets for real-time interactions. As part of our commitment to information security, all employees are expected to adhere to company security policies and procedures, participate in mandatory More ❯

together. About The Role We're looking for a Software Engineer to help build and scale the services that power our innovative products. Using cutting-edge technologies like Go, GraphQL, Terraform, AWS and Kubernetes, with a frontend built in React, you'll work on a platform designed for performance and scalability. This is an opportunity to make a real impact More ❯

Experience: Strong commercial experience as a Ruby Developer, with a proven track record of delivering complex projects. Demonstrable strong experience working on APIs, including design, development, and integration (RESTful, GraphQL). Proficiency in Node.js for specific backend services and tooling. Solid understanding of JavaScript for front-end integration and broader development needs. Experience with relational databases (e.g., PostgreSQL, MySQL). More ❯

front-end workflows Solid knowledge of Docker (Kubernetes experience a plus) Experience shipping SaaS platforms end-to-end Strong communication and debugging skills Bonus if youve worked with: Kafka, GraphQL, GitHub Actions, Jenkins, or Golang. ?? Why Valent? Mission-led : Build tools that protect global information integrity. High impact : Direct involvement in a vital AI system used by governments and global More ❯

design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to ensure applications work on various devices and screen sizes. Develop and integrate REST, GraphQL and RPC APIs. Conduct thorough testing of applications, including unit testing, integration testing, and end-to-end testing. Debug and resolve technical issues and bugs. Be part of a support More ❯

Passion for improving coding and development practices. Experience working with microservices communicating over a range of interfaces. Understanding of how the web works, REST APIs, OpenAPI spec/Swagger, GraphQL, and the difference between REST and RPCs. Understanding of TDD, BDD, unit testing, integration testing, and when to use them. Familiarity with trunk-based development in Git. Experience with back More ❯

Job Description Take on a crucial role where you'll be a key part of a high-performing team delivering secure software solutions. Make a real impact as you help shape the future of software security at one of the More ❯

but how we do it that matters. Get involved in our journey to leverage AI to enhance user experience, streamline operations and unlock new capabilities. Continuously enhance REST and GraphQL API experiences that consistently cater to billions of requests every month. What you need to be successful? Proven Experience: Demonstrable experience as a Full Stack Software Engineer in a product … Proficiency: Strong skills in TypeScript, React, and Node.js. Interested in clean code practices and familiarity with enterprise architectural design patterns. Strong experience with Node.js: Expertise in building RESTful APIs, GraphQL services, and backend systems using Node.js. Strong Experience with GraphQL: Practical knowledge of building, maintaining, and optimizing GraphQL APIs. Cloud and Deployment Knowledge: Familiarity with cloud environments (AWS, Google Cloud More ❯

Line managing a small team, developing their abilities through coaching and mentoring Our Technology Stack Frontend App Framework - JavaScript & TypeScript/React Frontend State Management - Mobx Backend – Java REST & GraphQL Services & Python CI/CD - GitHub & CircleCI Cloud – AWS What We Are Looking For The ideal candidate will be a highly creative and self-motivated problem solver with the ability … in software design and implementation of production-ready clients using technologies such as: HTML5, JavaScript, CSS3, Typescript, and React Experience with APIs and using patterns such as REST and GraphQL Experience with testing frameworks and methodologies, ensuring the delivery of high-quality software Geospatial development experience Strong problem-solving skills and attention to detail Excellent communication and collaboration skills Desirable More ❯

reviews, and code reviews. Continuously learn and grow your understanding of modern front-end technologies, micro frontend patterns, server-side JavaScript, and best practices. Work with RESTful APIs and GraphQL to integrate front-end applications with backend services. Support and improve CI/CD pipelines and implement robust front-end testing strategies including unit, integration, and end-to-end tests. More ❯

git/GitHub, DevOps tools, metrics/monitoring, ...) Proficiency in front-end technologies: JavaScript, Typescript, React.js, Angular.js or similar. API development using technologies and standards like REST/GraphQL/gRPC or similar. Experience in an open-source web framework preferably implemented in Python, Java, Scala, or similar. Experience with Authentication & Authorisation Mechanisms e.g OAuth2 Application experience of CI More ❯

Job Description Trident Search have partnered with a rapidly growing cyber security consultancy who are on the search for a Senior Full Stack Developer to join them. The ideal candidate will be responsible for designing, developing, testing, and debugging responsive More ❯

Google Cloud (preferred), AWS, Azure. Proficiency with modern development tools (git/GitHub, DevOps, monitoring). Front-end skills: JavaScript, Typescript, React.js, Angular.js, or similar. API development using REST, GraphQL, gRPC, or similar standards. Experience with open-source web frameworks in Python, Java, Scala, or similar. Knowledge of Authentication & Authorization mechanisms like OAuth2. Experience with CI/CD pipelines and More ❯

AI/ML APIs, models, or services into real-world products. Scalable API & Service Design: Strong track record of designing and implementing robust, scalable, and secure APIs (REST and GraphQL). Cloud & Infrastructure Experience: Proficiency with Docker and Kubernetes for deploying and orchestrating microservices. Experience leveraging cloud platforms (AWS, Azure, GCP) for building AI-enabled solutions. High-Performance Systems: Ability More ❯

Automated Framework using Python (Pandas, Numpy, Requests, Boto3) Experience creating automation frameworks using Selenium (Python) and tools to support test automation for web applications Experience working with Postman, SOAPUI, GraphQL or similar API testing tools Strong hands-on experience in APIs, webservices and Microservices. Experience with processes and deliverables in an Agile/SCRUM environment What Would Make You Stand More ❯

to ensure our applications are built using the best practices Our Technology Stack Frontend App Framework - JavaScript/TypeScript/React Frontend State Management - Mobx Backend – Java REST/GraphQL Services CI/CD - GitHub/CircleCI Cloud – AWS What we are looking for A Bachelor's degree in computer science, Information Technology, or a related field Mid to senior … in software design and implementation of production-ready clients using technologies such as: HTML5, JavaScript, CSS3, Typescript, and React Experience with APIs and using patterns such as REST and GraphQL Experience with testing frameworks and methodologies, ensuring the delivery of high-quality software Strong problem-solving skills and attention to detail Excellent communication and collaboration skills Desirable (but not essential More ❯

JavaScript , TypeScript , Node.js (for backend), and React (for frontend). A stronger inclination and experience towards backend development is preferred. Proficiency in building and consuming RESTful APIs; familiarity with GraphQL is a plus. Experience with relational databases (e.g., MySQL, PostgreSQL) and/or NoSQL databases. Hands-on experience with cloud services ( AWS or Google Cloud Platform ), including deploying and maintaining More ❯

And Professional Expertise Technical Skills: Foundational knowledge of full-stack development, including both front-end and Back End technologies TypeScript, React, Material UI, Java, Spring Boot, Node JS, REST & GraphQL APIs, Mongo & Neo4J databases Azure/Kubernetes and OpenShift deployment platforms As an equal opportunities’ employer, we welcome applications from individuals of all backgrounds. However, for you to be eligible More ❯

agile practices (e.g. Kanban, Scrum, etc.) Collaborating in cross-functional teams It’d be amazing if you can also: Make use of modern UI data layer technologies (i.e. Relay, GraphQL, Apollo, etc.) Design, build, debug and help contribute to evolving cloud based architectures following Everything-as-Code principles Design an agile release engineering strategy that delivers value incrementally and continuously More ❯

environment Demonstrable experience designing, developing and maintaining distributed, event-driven, cloud-native systems Expert in the latest versions of .NET Framework and .NET Core (C#) Experience in API (REST, GraphQL) design and development Experience in relational database design and optimization (MSSQL, MySQL, etc.) Experience in the deployment and management of cloud (AWS, Azure, etc.) assets Demonstrable understanding of the full More ❯

of Kafka architecture, configuration, and optimisation, along with experience in other messaging systems like Tibco Enterprise Message Service. API Development : Strong capabilities in designing and implementing RESTful APIs and GraphQL services with a focus on security, performance, and usability. Database Management : Proficiency with both relational databases (Oracle, PostgreSQL) and NoSQL solutions (MongoDB, Cassandra), including optimisation of data access patterns. Performance More ❯

cloud environments Design and implement modular, event-driven architectures (e.g., Lambda + SQS/SNS + Step Functions) to enable scalable agent workflows Develop and manage API layers (REST, GraphQL, WebSockets) to orchestrate intelligent interactions between agents, models and services Lead implementation of full-stack interfaces and services using Node.js, TypeScript, React.js, Express, Next.js Integrate ML models and embeddings into … tool-use patterns , function calling, and autonomous workflow design Proficient in designing asynchronous, event-driven systems and pub/sub messaging API-first mindset with deep knowledge of REST, GraphQL, and streaming protocols Infrastructure as Code using Terraform , AWS CDK or similar Experience with secure cloud deployments and production ML model integration Bonus Skills Applied work with multi-agent systems More ❯

cloud environments Design and implement modular, event-driven architectures (e.g., Lambda + SQS/SNS + Step Functions) to enable scalable agent workflows Develop and manage API layers (REST, GraphQL, WebSockets) to orchestrate intelligent interactions between agents, models and services Lead implementation of full-stack interfaces and services using Node.js, TypeScript, React.js, Express, Next.js Integrate ML models and embeddings into … tool-use patterns , function calling, and autonomous workflow design Proficient in designing asynchronous, event-driven systems and pub/sub messaging API-first mindset with deep knowledge of REST, GraphQL, and streaming protocols Infrastructure as Code using Terraform , AWS CDK or similar Experience with secure cloud deployments and production ML model integration Bonus Skills Applied work with multi-agent systems More ❯

we work hard and operate at "Duetto speed," the work atmosphere is casual, flexible, collaborative, and, most of all, fun. Our technology stack includes Java server technologies , React, TypeScript, GraphQL, and patent-pending analytical methods on top of MongoDB and AWS. What You Will Be Doing: As a Lead Software Engineer at Duetto, you will lead the creation of software … record of driving technical direction and delivering high-quality software at scale in a collaborative, agile environment. Proficiency in Java, Spring, React, Typescript, JavaScript, CSS, and Cypress. Familiarity with GraphQL and its implementation in modern web applications. Extensive experience with scalable server-side Java and design of mission-critical enterprise applications. Advanced experience with CI/CD pipelines, test automation More ❯