226 to 250 of 277 GraphQL Jobs in London

Full Stack Software Engineer

Location
City Of London, England, United Kingdom
services and experiences that power customer engagement at scale. This is an exciting opportunity for a full stack engineer with experience in React, Node.js, GraphQL and modern database technologies who enjoys working across front-end experiences, backend systems and data flows to deliver high-quality products that create measurable business … Node.js . Hands-on experience developing and maintaining modern web applications using JavaScript/TypeScript . Experience designing, building and consuming APIs, including GraphQL . Experience working with at least one relational database technology, including: MySQL PostgreSQL Microsoft SQL Server Experience developing, integrating and maintaining backend services, APIs and data ...

Senior Golang Software Engineer

Hiring Organisation
Venture Up
Location
London, United Kingdom
Salary
£ 100 K
Job DescriptionSenior Golang Backend EngineerFully Remote/UK Working HoursA couple of Senior Golang Backend Engineers are required for an exciting and innovative Software house company based in Hong Kong. The company operates at the ...

Scale-Driven Data Platform Engineer

Location
Greater London, England, United Kingdom
visibility into customer health and performance of online properties. You will work on high‐throughput pipelines, a ClickHouse‐powered analytical platform, and customer‐facing GraphQL APIs. Collaboration across teams and with open‐source communities is encouraged. #J-18808-Ljbffr ...

Backend Engineer

Hiring Organisation
Hanson Regan Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
developer who can build features. The core stack includes: Python | Go | TypeScript GCP | Kubernetes | ArgoCD | GitHub Actions PostgreSQL | BigQuery | Vector Databases | Blob Storage REST | GraphQL | gRPC Pub/Sub | Vertex AI Prometheus | Grafana | Sentry What matters is that you've already worked on serious Back End systems and that … engineering tools to find better and faster ways of solving problems. Essential Skills Required: Backend development using Python, Go, TypeScript or similar REST, GraphQL or gRPC APIs Kubernetes and cloud platforms PostgreSQL and strong SQL Event-driven or asynchronous architectures Queues, retries and distributed processing System design and architectural decision ...

Senior Engineer - Data Science

Hiring Organisation
Royal Bank of Canada
Location
London, United Kingdom
Salary
£ 80 K
build the plumbing that gets ML models into the hands of the people who need them. Whether it's REST APIs feeding internal apps, GraphQL endpoints powering dashboards, or MCP servers fueling AI agents-you own the serving layer that makes models actually useful across RBC.You'll report … permanent, full-time role requiring 4 days in the office at our London location.What will you do Design and build REST and GraphQL APIs that expose ML models from Databricks to internal apps, CRM platforms, and enterprise systems-handling contract design, versioning, authentication, and clear documentationBuild MCP servers that expose ...

Expert Backend Engineer

Hiring Organisation
Wiz
Location
London, United Kingdom
Salary
£ 80 K
QualificationsExperience with microservices based architecture.Experience with databases and message queue technologies.Experience with continuous integration and deployment (CI/CD).Familiarity or experience with Golang, GraphQL, PostgreSQL, Neptune, Docker, and Kubernetes.About the JobWe're looking for an experienced Backend Engineer to join our expanding R&D team and help drive … Join us in our mission to secure the cloud.Our tech stack includes a multi-cloud architecture (Azure, AWS, GCP, OCI, Alibaba Cloud) with Golang, GraphQL, PostgreSQL, Neptune, Docker, Kubernetes, and more.ResponsibilitiesEnd-to-end development of backend software components (research, design, development, testing, rollout, monitoring).Contributing to technological and architectural decisions.Conducting ...

Principal Product Engineer

Hiring Organisation
Zapp
Location
London, UK
Employment Type
Full-time
youDeep engineering experience. 10+ years building production software. Full-stack range. Comfortable across backend, web, and infrastructure. Strong fundamentals. Confident with TypeScript, GraphQL, and SQL. At home in NestJS (or a similar Node.js framework) and React. Cloud and DevOps minded. Comfortable across GCP or a similar cloud, CI/… when features need backend work. React Native. Our apps run on React Native and Expo. You'll touch them when features cross stack boundaries. GraphQL Federation. We run a federated gateway across multiple subgraphs, and federation experience makes schema and subgraph work easier. Distributed systems at scale. Event-driven patterns ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
background building visualization‐centric UIs, dashboards, charts, time‐series metrics, or experiment explorers for complex datasets. Hands‐on experience integrating frontends with REST or GraphQL APIs, with a strong understanding of service‐oriented architecture, data modeling, and Python web frameworks (e.g., FastAPI, Flask, Django). Practical experience with database data … e.g., ML engineers, data scientists, physical test engineers) or exposure to ML/AI workflows, experiment tracking, and agentic interfaces. Hands‐on experience with GraphQL, typed API clients in React, or SSR/SSG performance‐focused frameworks. Wondering if you’re a good fit? We believe in investing ...

Staff Frontend Engineer

Location
Greater London, England, United Kingdom
background building visualization-centric UIs, dashboards, charts, time-series metrics, or experiment explorers for complex datasets. Hands-on experience integrating frontends with REST or GraphQL APIs, with a strong understanding of service-oriented architecture, data modeling, and Python web frameworks (e.g., FastAPI, Flask, Django). Practical experience with database data … e.g., ML engineers, data scientists, physical test engineers) or exposure to ML/AI workflows, experiment tracking, and agentic interfaces. Hands-on experience with GraphQL, typed API clients in React, or SSR/SSG performance-focused frameworks. Wondering if you're a good fit? We believe in investing ...

Lead Software Data Engineer – GraphQL, AWS & GoLang

Location
City Of London, England, United Kingdom
languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J-18808-Ljbffr ...

Senior Full Stack Engineer

Hiring Organisation
Teya Solutions
Location
London, United Kingdom
Salary
£ 80 K
hear from youKey ResponsibilitiesLead the design, development, and delivery of scalable, responsive full stack features for the Business Account portal using React, TypeScript, and GraphQL, with ownership spanning both frontend implementation and integration with backend services.Work closely with product and design teams to understand merchant needs and translate complex financial … interfaces for transaction feeds, balances, statements, and multi-currency views, ensuring efficient data fetching, state management, and seamless interaction with backend services.Develop and maintain GraphQL schemas, resolvers, and API integrations, ensuring consistency between frontend requirements and backend data models while promoting type safety and end-to-end reliability.Write clean, maintainable ...

Senior Full Stack Engineer

Hiring Organisation
Teya Solutions
Location
London, UK
Employment Type
Full-time
hear from youKey ResponsibilitiesLead the design, development, and delivery of scalable, responsive full stack features for the Business Account portal using React, TypeScript, and GraphQL, with ownership spanning both frontend implementation and integration with backend services. Work closely with product and design teams to understand merchant needs and translate complex … transaction feeds, balances, statements, and multi-currency views, ensuring efficient data fetching, state management, and seamless interaction with backend services. Develop and maintain GraphQL schemas, resolvers, and API integrations, ensuring consistency between frontend requirements and backend data models while promoting type safety and end-to-end reliability. Write clean, maintainable ...

Senior Software Engineer - Customer Order

Location
City Of London, England, United Kingdom
multiple channels. Contribute to event-driven architectures using Kafka to support high-volume transactional workflows across Payments, Pricing, and Fulfilment domains. Design and evolve GraphQL and REST APIs, ensuring consistency, performance, scalability, and an excellent developer experience. Build resilient, low-latency solutions using distributed databases, caching technologies, and modern architectural … enable multiple teams and products. Solid understanding of distributed systems, event-driven architectures, and asynchronous messaging patterns. Must have designed API-first platforms with GraphQL and REST-based services. Comfortable working with high-volume transactional systems where reliability, performance, and resilience are critical. What's in it for you Being ...

Pre-Sales Senior Engineer

Hiring Organisation
Kaluza
Location
London, United Kingdom
Salary
£ 80 K
logic generation.Technical Asset Development: Design, build, and maintain reusable mock services in Node.js/TypeScript. You’ll implement contract-first APIs (REST/GraphQL), manage AWS deployments (API Gateway, Containers), and handle persistence using PostgreSQL or DynamoDBInfrastructure as Code: Manage demo environments using Terraform, ensuring environments are reproducible and secure … just using an AI assistant; you are "vibe coding" complete PoCs.API Design Expert: Experience designing clean, well-documented APIs (REST and/or GraphQL) and using Git/Github workflows effectively.Cloud & Infrastructure Knowledge: Familiarity with AWS primitives and a proven ability to deploy infrastructure using Terraform.Pragmatic & Autonomous: Comfortable operating with ...

Principal Integration Engineer

Location
Greater London, England, United Kingdom
We are looking for an exceptional Principal Integration Engineer to shape and evolve the Selfridges integration landscape. This is one of the broadest technical roles in the team, spanning almost every technology we run. You ...

Senior Backend Developer

Hiring Organisation
Rullion Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a ...

Senior Backend Developer

Hiring Organisation
Rullion Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a ...

UI Developer- Contract

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
React, as well as maintaining existing features and occasionally porting features from a legacy Angular codebase. Additionally you will be responsible for the GraphQL API built in node.js and Apollo to interact with a microservice backend layer. The team’s mandate is to create an entirely new user experience … help shape the evolving architecture.UI Developers Must Have:Deep knowledge of JavaScript or TypeScript, HTML and CSSExperience of backend systems such as node.js, GraphQL and RESTUse of modern JavaScript frameworks such as React, Redux, Styled Components, Apollo GraphQLUX and visual design skills are a plusThe development stack includes: TypeScript, React ...

Frontend Javascript Developer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 80 K
bleeding edge of not only product ideas but also technology and data manipulation.TypeScript/React/Redux/Styled Components/Apollo GraphQL/Webpack/Jest/Cypress/PrettierWe are growing our UI team to develop new features for our exciting frontend product built in React, as well … maintaining existing features and occasionally porting features from a legacy Angular codebase. Additionally we are responsible for our GraphQL API built in node.js and Apollo to interact with a microservice backend layer. The team’s mandate is to create an entirely new user experience and engineer the UI with ...

Senior AI Workplace Engineer – Secure Microsoft 365 Collaboration, AI

Location
Greater London, England, United Kingdom
with cross-tenant migration, automation, and multi-tenant environments Proven expertise in PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query (DAX), REST APIs, and GraphQL Experience with Microsoft Dataverse, Microsoft SQL, MySQL, and AI-driven data analytics Strong understanding of AI governance, compliance, and responsible AI practices Excellent communication, leadership … Compliance Microsoft Purview Deployment ATS Optimization Keywords Hard Skills SharePoint Development Power Platform Microsoft Purview Power BI PowerShell Python JavaScript C# REST APIs GraphQL Soft Skills Excellent Communication Leadership Client Engagement Certifications & Qualifications MS-900 MS-700 MS-100 AI-102 Industry Keywords Data Protection Risk Management Compliance AI-Driven ...

Backend Python Developer

Location
Greater London, England, United Kingdom
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 … 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 ...

AI Workplace Solution Architect – Microsoft 365, AI

Location
Greater London, England, United Kingdom
Power Apps, Power Automate, Power BI Desktop, and Microsoft Dataverse Expertise in PowerShell, PnP, Python, JavaScript, C#, JSON, Power Query (DAX), REST APIs, and GraphQL Experience with Microsoft Dataverse, Microsoft SQL, MySQL, and AI-driven data analytics Experience designing cross-tenant migrations, automation, and multi-tenant environments Strong understanding … Solution Architecture Leadership Power Platform Development AI Governance Frameworks Hard Skills SharePoint Online Teams Exchange Online OneDrive Entra ID Power Platform PowerShell Python C# GraphQL Soft Skills Excellent Communication Leadership Client Engagement Certifications & Qualifications MS-900 MS-700 MS-102 SC-100 AZ-305 AI-102 Industry Keywords Data Protection ...

Software Engineer (Backend)

Location
Greater London, England, United Kingdom
present: Google Cloud Platform, managed with Terraform; Elixir for APIs, storage, and external integration; Python for the Machine Learning pipelines; Reason React and GraphQL for the frontend web app. Your responsibilities: Build APIs to serve our user-facing web applications. Model the business logic in relational databases. Integrate with external … maintainable code. Solid programming skills in at least one backend language (Elixir, C++, Python, Ruby etc). Strong understanding in API design (RESTful or GraphQL). Good understanding in SQL. Willingness to learn new languages/technologies. These are our ideal requirements but we invest in potential over histories. ...

Head of Engineering (F/H/X)

Location
Greater London, England, United Kingdom
picture yourself in the technical interview: Backend & platform : Node.js/TypeScript, mainly NestJS, with Prisma and Kysely on the data side, exposed via GraphQL (Apollo) and REST documented with OpenAPI/Swagger. Frontend : React (18/19) in TypeScript, Vite, with Chakra UI, MUI and Radix UI depending … comfortable with a very hands‐on role given the team size Solid full‐stack technical background: comfortable with a Node.js/TypeScript ecosystem (NestJS, GraphQL/REST) and React An interest in real‐time audio processing: voice effects and singing scoring are a real subject here (latency, audio quality, synchronization ...