1 to 25 of 176 GraphQL Jobs in London

Full Stack Developer - London - Energy Trading

Location
Greater London, England, United Kingdom
cloud automation practices Experience within commodities trading, analytics, data, or complex enterprise environments Experience mentoring engineers and supporting technical leadership activities Experience with GraphQL and modern API design approaches Roles and Responsibilities: Design, develop, test, and support modern full-stack applications using React , TypeScript , .NET , and/or Python Build ...

Node Developer

Location
Greater London, England, United Kingdom
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 Fullstack Engineer (Python + React.js)

Location
Greater London, England, United Kingdom
backend systems and create API endpoints for model interaction (e.g., retrieving predictions). Develop and maintain scalable services, e.g. Microservices utilising REST, gRPC, or GraphQL, ensuring optimal performance and seamless integration. Optimize database queries and schemas to improve performance, scalability, and reliability. Implement security features, including authentication and authorization using ...

Senior Full Stack Developer | React | Angular | Vue (contract)

Location
Greater London, England, United Kingdom
Required Skills & Experience Technical Expertise Strong proficiency in front-end technologies: React/Angular/Vue Solid experience in back-end technologies: REST APIs, GraphQL Strong understanding of databases: Hands-on experience with cloud services, ideallyAzure or AWS. Experience with CI/CD pipelines (GitHub Actions,Azure DevOps, Jenkins, etc. ...

Technical Product Manager

Location
Greater London, England, United Kingdom
hands‐on experience as a backend developer or software engineer Experience leading agile delivery teams or development pods Strong grasp of RESTful API design, GraphQL, API versioning, and microservices architecture Working knowledge of backend technologies such as Node.js, Python, Java, or .NET Understanding of SQL and NoSQL databases and data ...

Senior Software Engineer

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
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). 3. Systems & Mobile Architecture (Android ART) Proficiency in Kotlin or Java on native Android ...

Full Stack Developer

Location
City of Westminster, England, United Kingdom
Familiarity with CI/CD tools (GitHub Actions, GitLab), IaC (Terraform, Ansible), and monitoring tools (Datadog, Grafana). Containerization : Docker and Kubernetes. APIs : REST, GraphQL, OpenAPI. Databases : SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). Testing : Unit and functional testing (Jest, Cypress, Mocha). Soft Skills Strong communication skills ...

NTN Stack SW Architect (UK)

Location
Greater London, England, United Kingdom
cloud environments. Middleware, APIs, & Data Streaming (Technologies): Extensive hands-on experience architecting software interfaces using modern protocols and event-driven architectures (e.g., gRPC, REST, GraphQL, Apache Kafka, RabbitMQ). Automation & IaC (Tools): Demonstrated success utilizing Infrastructure as Code (IaC) and deployment automation tools (e.g., Terraform, Ansible, ArgoCD) across multi-cloud ...

Full Stack Software Engineer, Associate Preqin Engineering

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
services is beneficial. Familiarity with data technologies such as Microsoft SQL Server, MongoDB, and Snowflake. Nice to have Experience with Java development. Experience with GraphQL APIs and application integrations. Exposure to Amazon Web Services (AWS). Familiarity with enterprise-grade container orchestration platforms supporting declarative infrastructure and horizontal scaling. Familiarity ...

Senior Fullstack Developer — Java or Kotlin, React and TypeScript

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
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
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 ...

Polyglot Engineer (JS/Python/Go)

Location
Greater London, England, United Kingdom
performance optimization; Scalable system design patterns, load balancing, and high-availability architectures; Database design and optimization (both relational and NoSQL); API development (REST, GraphQL, gRPC) and event-driven architectures; Caching strategies and message queue systems (Redis, Kafka, RabbitMQ); Cloud platforms (AWS, Azure, GCP) with containerisation (Docker, Kubernetes); CI/ ...

Senior Developer

Hiring Organisation
Appcast
Location
London, UK
keen for Engineers to continue learning new technologies, we have a large range in the Home Office including: Backend: Node.js, Python, APIs (REST/GraphQL) Frontend: React, JavaScript, Typescript, Angular Data: Mongodb, Redis DevOps: AWS, Kubernetes, Docker, Ansible, Terraform, CI/CD pipelines AI: Python, Github Copilot, OpenAI. Person specificationMain ...

Senior Developer

Hiring Organisation
Appcast
Location
Croydon, Cambridgeshire, UK
keen for Engineers to continue learning new technologies, we have a large range in the Home Office including: Backend: Node.js, Python, APIs (REST/GraphQL) Frontend: React, JavaScript, Typescript, Angular Data: Mongodb, Redis DevOps: AWS, Kubernetes, Docker, Ansible, Terraform, CI/CD pipelines AI: Python, Github Copilot, OpenAI. Person specificationMain ...

backend developer for POS platforms

Location
Greater London, England, United Kingdom
scale backend services powering POS integrations across ERP, eCommerce, CRM, inventory, and loyalty platforms; Develop performant, secure, and easy-to-consume REST and GraphQL APIs; Implement real-time and batch data synchronization, OAuth and SSO authentication flows, and secure event pipelines; Contribute to cloud-native, event-driven architecture for global ...

backend developer for retail POS platforms

Location
Greater London, England, United Kingdom
scale backend services powering POS integrations across ERP, eCommerce, CRM, inventory, and loyalty platforms Develop performant, secure, and easy-to-consume REST and GraphQL APIs Implement real-time and batch data synchronization, OAuth and SSO authentication flows, and secure event pipelines Contribute to cloud-native, event-driven architecture for global ...

Senior Full Stack Developer (C#/React/TypeScript) - REMOTE working

Location
Greater London, England, United Kingdom
architecture. Docker, Kubernetes in Azure, Vercel. Jenkins/BitBucket Pipelines for CI/CD. RabbitMQ/MassTransit. Microfrontends. Test Driven Development. RESTful API design. GraphQL APIs. Integrations with third-party APIs and SaaS platforms. Benefits Competitive salary and benefits package REMOTE working Holiday allowance 50% staff discount & 25% for family ...

Engineer C# (Full Stack)

Location
City Of London, England, United Kingdom
Excellent problem‐solving, communication, and collaboration skills. Desired: Experience with microservices and event‐driven architectures. Experience with AI‐assisted design and coding. Knowledge of GraphQL and WebSockets. Familiarity with observability tools such as OpenTelemetry and Grafana. Experience with Infrastructure as Code (Terraform). Understanding of financial markets or trading systems. ...

Senior Software Engineer

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. ...

Engineer C# (Full Stack)

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

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 ...

Full Stack Engineer

Hiring Organisation
Hackajob Ltd
Location
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 ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
pipelines, Git, and Agile development methodologies. Excellent communication and stakeholder collaboration skills. Previous mentoring or technical leadership experience. Experience with: Next.js or Remix. GraphQL and Apollo. Storybook and component libraries. Accessibility standards (WCAG 2.1 AA). Progressive Web Apps and responsive design. AI-powered development and integrations, including LLM APIs ...

backend developer for public-sector digital services

Location
Greater London, England, United Kingdom
Nice to have: Experience with API Gateway, DynamoDB, S3, SQS, SNS, EventBridge, CloudWatch, IAM, Infrastructure as Code, AWS CDK, CloudFormation, Terraform, Node.js, RESTful or GraphQL APIs, relational or NoSQL databases, CI/CD pipelines, containerisation, Docker, messaging systems, cloud security best practices, observability, performance optimisation, large‐scale or public‐facing ...

Senior Forward Deployed Engineer

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 ...