1 to 25 of 198 GraphQL Jobs in London

Principal Software Engineer

Location
Greater London, England, United Kingdom
ideally substantial JVM (Java or Scala), .NET (C#), Rust, or Go expertise; Typescript and Javascript (must-have); Node.js (ideal); APIs: RESTful APIs (must-have); GraphQL (desirable); MCP (desirable) or A2A (desirable); web frameworks (Django (must-have)) and front-end frameworks (React (must-have), Blazor (desirable)); mobile frameworks: React Native (highly ...

Senior React & Node Developer (AI & Full Stack)

Hiring Organisation
Infused Solutions Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum
proactive, product-focused mindset with a passion for solving complex problems. Desirable Skills AI-powered application development Large Language Models (LLMs) Generative AI Microservices GraphQL CI/CD Infrastructure as Code Event-driven architecture Agile product development Accessibility (WCAG) Technology Stack React TypeScript JavaScript Node.js Express.js Python Microsoft Azure Docker ...

Technical Lead

Location
Greater London, England, United Kingdom
/GCP). Solid understanding of CI/CD pipelines, Docker, Kubernetes and infrastructure-as-code. Expertise in building secure, scalable RESTful and GraphQL APIs. Excellent knowledge of authentication, authorisation and data security best practices. Outstanding communication skills: clear, direct and effective when working with both technical teams ...

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 ...

Full Stack Developer : Azure Databricks

Hiring Organisation
Eaglecliff Recruitment
Location
London, UK
Employment Type
Full-time
/Angular/Vue, HTML5, CSS3, JavaScript/TypeScript Solid experience in back-end technologies: Node.js/.NET/Java/Python, REST APIs, GraphQL Strong understanding of databases: SQL (PostgreSQL, MySQL, SQL Server) Hands-on experience with cloud services, ideally Azure or AWSPreferred Experience 5-6 years of professional ...

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. ...

Engineer C# (Full Stack)

Hiring Organisation
Liquidnet
Location
London, UK
Employment Type
Full-time
database skills (SQL).Excellent problem-solving, communication, and collaboration skills. DesiredExperience 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 to open ...

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/ ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
best practice. The technology You’ll work across a modern full stack environment, including: Node.js and TypeScript MongoDB and SQL RESTful HTTP APIs and GraphQL AWS and cloud-native solutions Jenkins and/or AWS CodePipeline Automated testing and Test Driven Development We care about strong engineering fundamentals ...

Senior Software Engineer - (Typescript & Node)

Location
Greater London, England, United Kingdom
Technical Skills Experience of building cloud-hosted applications, using Typescript and Node.JS in a start-up, public service, or charitable setting Experience with GraphQL, React, WebAssembly and Python would be a nice to have Prior experience with Azure (ideally), AWS or GCP Comfortable working with Infrastructure as Code, ideally Terraform ...

Senior Golang Developer

Location
Greater London, England, United Kingdom
/CD pipelines and automated testing Agile/Scrum development experience Strong communication and problem-solving skills Bonus points for: Kubernetes, PostgreSQL, gRPC or GraphQL AWS or cloud-native development Experience in financial services or high-volume transactional platforms Test-driven development (TDD) Why this opportunity? You’ll be working ...

Senior Full Stack Developer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £85,000 per annum
drive technical decisions and platform modernisation initiatives. YOUR SKILLS AND EXPERIENCE: You will bring strong capability in: Node.js and TypeScript development. React and Next.js. GraphQL and REST API development. Microservices and event-driven architectures. Kafka or similar messaging technologies. PostgreSQL, MongoDB and Redis. AWS, Docker and CI/CD practices. ...

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 ...

Senior AWS Serverless Software Engineer - contract

Hiring Organisation
Staffworx Limited
Location
London, UK
Employment Type
Full-time
deep knowledge in building applications using industry standard design patterns utilizing AWS Serverless architectureTechnologies: NodeJS, TypeScript, AWS lambda, Step functions, Appsync, SNS, SQS, EventBridge, GraphQL, RestAPIs, CMS (Preferred Drupal),Tools: JIRA, Confluence, Slack, Datadog, GTMExcellent communication skills to understand requirements of different stakeholders and brainstorm technical and project challenges ...

Agentforce Operations FDE

Location
Greater London, England, United Kingdom
vector databases, search indexes, and knowledge bases to supply agents with accurate enterprise context. Enterprise Integration & API Management: Develop and maintain custom APIs (REST, GraphQL, webhooks) and integration pipelines connecting AFO/Agentforce to Salesforce Data Cloud (Data 360), cloud warehouses (Snowflake, Databricks), and core ERPs (SAP, Oracle, NetSuite ...

Experienced Product Engineer - Full Stack

Location
Greater London, England, United Kingdom
individual contributions have visible impact. What you'll be doing 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 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 ...

Staff Android Engineer

Location
Greater London, England, United Kingdom
with our website and microservice teams, as such any experience in the following areas may also be helpful, but is not required or expected: GraphQL Microservice Architectures Docker, Kubernetes, and cloud platforms such as AWS, GCP or Azure Understanding of UX principles HTML, CSS, and related web technologies Experience with ...

Forward Deployed Solution Engineer – Applied AI FDE

Location
Greater London, England, United Kingdom
design and implement AI‐native software in production environments Engineering depth: Strength in backend (Python, Node.js, Java), frontend (React, Angular), APIs (REST/GraphQL) Machine Learning: Foundations of MLflow, Weights & Biases, LoRA, PEFT, SageMaker, Vertex AI, AzureML, Kubeflow, Airflow, Prefect, TorchServe, Triton, vLLM, SHAP, LIME, pandas, Spark, SQL LLM tooling ...

Forward Deployed Solution Engineer – AppliedAI FDE

Location
Royal Borough of Greenwich, England, United Kingdom
design and implement AI‐native software in production environments Engineering depth: Strength in backend (Python, Node.js, Java), frontend (React, Angular), APIs (REST/GraphQL) Machine Learning: Foundations of MLflow, Weights & Biases, LoRA, PEFT, SageMaker, Vertex AI, AzureML, Kubeflow, Airflow, Prefect, TorchServe, Triton, vLLM, SHAP, LIME, pandas, Spark, SQL LLM tooling ...

Agentforce Operations FDE

Location
Greater London, England, United Kingdom
vector databases, search indexes, and knowledge bases to supply agents with accurate enterprise context. Enterprise Integration & API Management: Develop and maintain custom APIs (REST, GraphQL, webhooks) and integration pipelines connecting AFO/Agentforce to Salesforce Data Cloud (Data 360), cloud warehouses (Snowflake, Databricks), and core ERPs (SAP, Oracle, NetSuite ...

Senior Lead Software Engineer - Full Stack ReactJS, Java, Python, AWS, AI/ML

Location
Greater London, England, United Kingdom
quality control over AI-produced outputs. Experience optimizing performance and reliability of AI-powered user interfaces & proficiency in React framework Understanding of REST APIsand GraphQL Comfortable working with projects partially or fully usingTypeScript & using latestReact featuressuch as Suspense and Hooks End to end testing applications #J-18808-Ljbffr ...

Full Stack Engineer

Location
Greater London, England, United Kingdom
engineering judgment needed to audit and refine AI outputs. Modern Engineering Practices: Familiarity with TDD principles, clean architecture concepts, and consuming APIs (e.g., GraphQL). Mindset: An independent, critical thinker who thrives in collaborative, small-team environments and values continuous feedback. Bonus Points Backend development experience in Java or Kotlin ...

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 ...

Backend Engineering and Architecture Lead

Location
Greater London, England, United Kingdom
Experience working with technologies such as Django, Flask, PostgreSQL, DynamoDB, Redis, Docker, Kubernetes and Terraform. Experience with event-driven architecture, REST and GraphQL APIs, messaging services and cloud-native infrastructure. A background in observability, automated testing and incident management, using tools such as PyTest, CloudWatch, New Relic or Sentry. Experience ...