1 to 25 of 122 GraphQL Jobs in London

Node Developer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
write clean, efficient, and scalable code. Familiarity with CI/CD pipelines and DevOps practices is a plus. Experience with TypeScript. Familiarity with GraphQL or other modern data-fetching technologies. Experience in integrating message brokers (e.g., RabbitMQ, Kafka). Familiarity with cloud platforms like AWS, Azure, or Google Cloud. Knowledge ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
APIs) 4+ years of production experience with modern Web stacks (TypeScript, React, Node.js, or Python/FastAPI). Strong API design experience (REST, GraphQL, gRPC, WebSocket) and relational/non-relational database design (PostgreSQL, SQLite). Systems & Mobile Architecture (Android ART) Proficiency in Kotlin or Java on native Android environments ...

Senior Fullstack Developer — Java or Kotlin, React and TypeScript

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
software engineering context.* Event-driven architecture and messaging or streaming technologies.* Experience with frameworks such as Spring Boot, Quarkus, Micronaut or Ktor.* GraphQL or comparable API technologies.* Cloud platforms such as AWS, Azure or GCP.* Containerisation and orchestration using Docker and Kubernetes.* NoSQL, caching or distributed data technologies.* Experience choosing ...

Senior Fullstack Developer — Java or Kotlin, React and TypeScript

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
software engineering context. Event-driven architecture and messaging or streaming technologies. Experience with frameworks such as Spring Boot, Quarkus, Micronaut or Ktor. GraphQL or comparable API technologies. Cloud platforms such as AWS, Azure or GCP. Containerisation and orchestration using Docker and Kubernetes. NoSQL, caching or distributed data technologies. Experience choosing ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Full Stack Engineer. 5+ years of relevant experience in coding in Typescript/JavaScript, using Node.js to architect and create REST and/or GraphQL APIs. Preferred experience working with eCommerce systems and platforms. Strong technical experience in modern front-end Typescript/JavaScript libraries and frameworks such as React.js. ...

Senior Forward Deployed Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
/Vue) and DevOps experience (Docker, K8s, CI/CD). Expertise in building data pipelines and integrating with enterprise systems (REST, Python, SQL, GraphQL, Webhooks etc). Solid understanding of LLMs, Prompt engineering/tuning, Vector DBs (AstraDB, Pinecone, Weaviate etc), RAG pipelines (LlamaIndex, Haystack) and Agent/Workflow ...

Senior Software Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
ownership are valued, this is a great opportunity. Key Responsibilities On the backend, you will design, build and maintain scalable services and RESTful/GraphQL APIs using Python with Django or FastAPI, writing clean, well-tested, production-grade code with a focus on reliability and performance. You will design ...

Senior Software Engineer

Hiring Organisation
17918
Location
Westminster, West End, United Kingdom
ownership are valued, this is a great opportunity. Key Responsibilities On the backend, you will design, build and maintain scalable services and RESTful/GraphQL APIs using Python with Django or FastAPI, writing clean, well-tested, production-grade code with a focus on reliability and performance. You will design ...

Engineer C# (Full Stack)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
skills (SQL).* Excellent problem-solving, communication, and collaboration skills.Desired* Experience with microservices and event-driven architectures.* Experience with AI assisted design and coding.* GraphQL, and WebSockets.* Knowledge of observability tools (e.g., OpenTelemetry, Grafana).* Familiarity with Infrastructure as Code (Terraform).* Understanding of financial markets or trading systems.* Contribution ...

Senior Forward Deployed ML Engineer, Agents

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
500ms latency, natural conversation flow, turn detection, and interruption handling in real-time systems Integrate agents directly into customer codebases via REST/GraphQL/WebSocket APIs and custom SDKs (Python, TypeScript) Act as trusted technical advisor to customers, shaping AI strategy and guiding roadmap decisions from concept to production ...

Senior Software Engineer (Back End)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
metrics, tracing, logging) for distributed systems.* Experience with CI/CD pipelines, containerisation (Docker), and orchestration (Kubernetes/EKS).* Experience designing APIs (REST, GraphQL).* Knowledge of distributed messaging and caching technologies (e.g., Solace, Redis, or similar).* Understanding of FIX protocol and FIX message handling.* Hands-on experience ...

Senior Staff Forward Deployed Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
deploying AI/ML or data-intensive applications in production Strong full-stack skills: Python, Node.js/Go, React/Vue, SQL, REST/GraphQL DevOps proficiency: Docker, Kubernetes, CI/CD, and major cloud platforms Expertise in LLMs, Prompt Engineering, Vector DBs, RAG pipelines, and Agentic orchestration frameworks Agentic ...

Senior Software Engineer London, Greater London, England, United Kingdom

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
testing, while actively considering operational concerns such as observability, logging, and alerting throughout the development lifecycle Experience designing quality APIs such as REST, gRPC, GraphQL, and OpenAPI, and integrating with 3rd party APIs API security knowledge across OAuth2, SAML, JWT, and related standards Strong grounding in software engineering best practices ...

Full Stack Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
platforms. Hands-on experience with iOS or Android native development, or React Native for mobile-first product work. Strong working knowledge of RESTful and GraphQL APIs, serverless architectures and CI/CD pipelines. Comfortable in TypeScript and JavaScript, with experience in cloud-native ecosystems and modern tooling. A track record ...

Software Developer | Market Making Technology

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
anticipate future challenges, ensuring operational effectiveness. Skills and Experience: Essential: Experience in C# .NET. Experience in at least one of JavaScript, Typescript, React, NodeJS, GraphQL, Docker. Experience of NoSQL or RDMS databases. Knowledge of modern CI/CD and DevOps practices. Experience working with AWS cloud services (e.g. ECS/ ...

Senior Full-Stack Engineer

Hiring Organisation
ADLIB
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £67,500 per annum
using AI-assisted development tools and reviewing AI-generated code. Strong knowledge of PostgreSQL and relational database design. Experience designing and consuming REST and GraphQL APIs. Experience deploying and managing applications within AWS environments. Knowledge of Docker and containerised application deployment. Experience building scalable, secure and maintainable web applications. Ability ...

Software Engineer, D2C

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
working with distributed systems and scalable solutions. Proficiency in a scripting languages (such as Python, Javascript/Typescript) and React. Experience with working with GraphQL and Rest APIs, SQL and/or NoSQL databases. Familiar with the software development lifecycle and best practices. Experience with microservices, APIs, and related standards ...

Banking Tech Full Stack Lead Engineer (Angular/Java) - VP

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Banking domain knowledge **Required Skills & Experience*** Significant hands-on experience with Angular, TypeScript, HTML5, Java & Spring framework* Proven experience of API first solution - REST, GraphQL* Experience designing & implementing large-scale platforms using microservices architecture* Experience working in Agile/Scrum delivery teams & incremental frequent releases.* Database design and queries ...

Senior Site Reliability Engineer

Hiring Organisation
Appcast
Location
London, UK
write efficient, maintainable, and scalable code.API Services: Experience in designing, deploying, and maintaining API services, with a strong understanding of RESTful and/or GraphQL API design principles.AI Fluency: You use AI tools in your own day-to-day work in addition to enabling others. You're comfortable building agents ...

Software Engineer - Global Music Tech & APIs

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
join a cross-functional squad delivering robust, scalable software. You’ll write clean, tested code, design distributed systems and microservices, and work with GraphQL/REST APIs, SQL/NoSQL, and AWS. Strong Python/JavaScript/TypeScript and React experience in an agile environment is essential. #J-18808-Ljbffr ...

Full Stack Developer

Hiring Organisation
Sanderson
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
Jest, Playwright, Cypress or React Testing Library. A collaborative approach with excellent communication skills. Experience mentoring developers or leading technical initiatives. Nice to have GraphQL .NET or SQL Server Storybook or design systems WCAG accessibility standards Progressive Web Apps Experience integrating AI tools or LLM APIs into products ...

Python Application Developer with DevOps

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
with Python and software design patterns (SOLID, DRY) Expertise in AWS (or similar cloud providers), Containerization and Kubernetes Deep understanding of RESTful API or GraphQL API design and development Strong experience with GIT and CI/CD tooling (Github Actions, Gitlab, Argo CD, Azure Devops) Experience monitoring systems in production ...

AI Expert

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day - Inside IR35
training, and documentation. Expertise in building responsive and scalable web applications using React, Next.js, Tailwind CSS, and ShadCN UI. Strong knowledge of REST APIs, GraphQL, API integrations, authentication, and serverless architectures. Experience integrating OpenAI, Azure OpenAI, Copilot Studio, LangChain, and AI Agent frameworks. Good understanding of RAG, vector databases ...

Senior Cloudflare Developer- Remote

Hiring Organisation
FDM Group
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £70,000 per annum
experience building highly performant, globally distributed applications. Responsibilities Design and build full-stack web applications using Cloudflare Workers and Pages. Develop secure REST and GraphQL APIs running on Cloudflare's edge network. Build frontend applications using frameworks such as React, Next.js, Vue, Astro, or Svelte. Design and implement data solutions ...

Python Application Developer with DevOps

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
with Python and software design patterns (SOLID, DRY) Expertise in AWS (or similar cloud providers), Containerization and Kubernetes Deep understanding of RESTful API or GraphQL API design and development Strong experience with GIT and CI/CD tooling (Github Actions, Gitlab, Argo CD, Azure Devops) Experience monitoring systems in production ...