1 to 25 of 174 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 ...

Experience with identity/access management integrations (Okta, Entra ID). Experience with service mesh technologies (Istio) and advanced networking patterns. Working knowledge of GraphQL APIs, ABAC solutions, and CMS platforms. Experience with C4 model architecture documentation (PlantUML or similar). TOGAF or other enterprise architecture certification. Cloud architecture certifications ...

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 ...

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 ...

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 ...

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. ...

/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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

design, build, and support of scalable and secure full-stack web applications using FastAPI. Experience in Unit Testing with Jest Experience with GraphQL with React for efficient data fetching and state management is preferred. Consume and integrate RESTful APIs to efficiently connect frontend applications with backend services. Work with business ...

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 ...

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 ...

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 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 ...

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 ...

applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Understanding of REST APIs and GraphQL Ability to write testable, clean JavaScript code Comfortable working with projects partially or fully using TypeScript Using latest React features such as Suspense and Hooks ...

developing and maintaining distributed, event-driven, cloud-native systemsExpert in the latest versions of .NET Framework and .NET Core (C#)Experience in API (REST, GraphQL) design and developmentExperience in relational database design and optimization (MSSQL, MySQL, etc.)Experience in the deployment and management of cloud (AWS, Azure, etc.) assetsDemonstrable understanding ...

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 ...