1 to 25 of 152 GraphQL Jobs in London

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 ...

/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 ...

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. ...

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 ...

most critical pillars in our Engineering organisation, our API platform, driving innovation across synchronous and asynchronous services built with REST, GraphQL, Kafka, and cloud-native technologies. You'll work hands-on with modern engineering tools and practices, partnering with talented squads to solve complex distributed systems challenges at scale. From ...

design tokens. Actively contribute to developing large-scale services for optimal performance, utilising technologies like Node. JS, Typescript, Mongo DB, Postgres, SQL, AWS Lambda, GraphQL and Serverless framework. This extends to microservices and event-driven architecture. Be proficient in unit testing (TDD), end-to-end testing and best practices. Collaboratively ...

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 ...

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 ...

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 ...

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/ ...

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. ...

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. ...

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 ...

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 ...

Job Title: Senior Full Stack Developer Duration: 3 months Schedule: Monday to Friday (Hybrid schedule) Location: London This opportunity sits within a Trading & Supply environment and offers the chance to contribute to the design, development ...

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 ...

/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 (basic experience and willingness to learn required) 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 ...

backend (basic experience and willingness to learn required) 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 ...

server-side languages and frameworks (e.g. Java/SpringBoot)Experience building solutions on at least one Cloud platform (e.g. AWS) using integration technologies (e.g. GraphQL, REST etc..) and NoSQL/SQL database technologies (e.g. PostgreSQL, TigerGraph etc..)Solid understanding of agile methodologies such as CI/CD, Applicant Resiliency ...

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 ...

with Infrastructure as Code , particularly AWS CDK, CloudFormation or Terraform. Experience with Node.js and the wider TypeScript ecosystem. Experience designing and developing RESTful or GraphQL APIs. Experience with relational and/or NoSQL databases. Experience with CI/CD pipelines and automated deployment processes. Experience with containerisation and Docker. Experience ...

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 ...

service running in production is the direct responsibility of the team behind it.ð Our Stack: AWS, PostgreSQL, Redis, Docker, Kafka, Temporal, Datadog, Terraform, gRPC, GraphQL, Kotlinð You should apply if you:have strong demonstrable experience and passion for backend developmentlike working together in multidisciplinary teams to deliver solutions for customersare ...

ability to build relationships across disciplines and communicate technical trade-offs to non-technical partners. We'd love to see experience with NoSQL databases, GraphQL, Kafka, or containerization (Docker/Kubernetes). Experience building tools or abstractions that provide leverage to an entire engineering team is also a significant plus. ...