1 to 25 of 44 GraphQL Jobs in London

Nest.js, Express.js, or FastAPI . Database Mastery – Strong SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) expertise. API Development & Security – Experience in building RESTful & GraphQL APIs , JWT authentication, OAuth, and cryptographic security. Scalability & Optimization Skills – Ability to optimize database queries, caching strategies, and event-driven architectures (Kafka, RabbitMQ) . Cloud & DevOps ...

cloud platforms (AWS/Azure/GCP) and Familiarity with DevOps practices, CI/CD, containers (Docker/Kubernetes). Knowledge of APIs, microservices, GraphQL, and integration patterns. Good to have mobile architecture expertise (native iOS/Android, Flutter, React Native) Experience using AI-assisted development tools (e.g. GitHub Copilot ...

cloud provider Experience with billing systems in multiple currencies Technologies we use (not exhaustive): React, TypeScript, JavaScript, HTML, CSS Babel, Webpack, Eslint, Prettier REST, GraphQL, JSON Schema, JSON:API CDNs (Fastly, Cloudflare) GitHub, BuildKite MySQL, Redis, Pulsar, Memcache Python, Django, FastAPI, Go, Gin, React, RabbitMQ, Celery, MySQL, DynamoDB, Cassandra, Redis ...

engineering organisation. Key Responsibilities Design, develop, and maintain high-quality Java applications using Spring Boot. Build and optimise RESTful APIs and contribute to GraphQL service development. Develop cloud-native solutions using AWS services such as Lambda, API Gateway, DynamoDB, ECS, S3, and others. Contribute to microservices architecture, event-driven systems ...

Tech environment - Not set in Stone Frontend: React, Next.js, TypeScript (or similar) Backend: Node.js (Express, NestJS) or Python (FastAPI, Django) (or similar) APIs: REST, GraphQL (or similar) Databases: PostgreSQL, MongoDB (or similar) AI/Data: Experience integrating AI/ML features via APIs (e.g. OpenAI, Anthropic or similar) Exposure ...

backend. What You Bring to the Table React Node/TypeScript/JavaScript Cloud: AWS, Azure, or GCP. APIs: API design and integration (REST & GraphQL). Technical Leadership: ability to lead project end-to-end AI Tooling: Confident using AI-boosted environments to ensure quality (Claude or similar). ...

embedded systems integration. Background or interest in scientific/biological domains. Our Tech Stack (Current & Planned) Frontend: React, TypeScript Backend: Node.js, Python, REST & GraphQL APIs Cloud & Infra: AWS (ECS, S3, Lambda), Docker, Cloudformation, Pulumi, CI/CD with GitHub Actions ML/AI: PyTorch, TensorFlow, scikit‐learn, MLflow for experiment ...

applications. Along with core Generative AI expertise, you will bring expertise in full backend development in technologies like python, typescript including REST, GraphQL etc. APIs development, core functional logic, performance, and stability of custom-built products. Conceptualize Generative AI custom products at BCG internally & operate as a technical thought partner ...

Behavior Driven Development (BDD) and Waterfall) Knowledge of any or all of the following technologies is desired: Kafka, Postgres, Golang, Git, gRPC, Docker, GraphQL Experienced in continuous integration (CI), continuous deployment (CD) and continuous testing (CT), including tools such as Jenkins, Rally and/or JIRA and version control such ...

without prior trading/finance experience. Experience with writing unit and integration tests and maintaining CI/CD pipelines. Preferred Qualifications & Experience Experience with GraphQL or REST API development. Knowledge of asynchronous programming, message queues, or real-time streaming architectures. Familiarity with cloud platforms (AWS, GCP, Azure) and container orchestration ...

backend expertise in Typescript and Node and front capability in React Proficiency in SQL, Redux, cloud services (AWS or GCP), RESTful API design and GraphQL Strong analytical skills with the ability to design, optimise, and troubleshoot complex UIs Excellent communication and leadership skills; ability to mentor junior team members Other ...

frontend framework ( React, Vue, Next.js ) Experience designing and delivering scalable, cloud-based systems (AWS, Azure or GCP) Strong understanding of API design (REST/GraphQL), databases and system architecture Experience with CI/CD, infrastructure as code (e.g. Terraform) and automated testing Ability to design for non-functional requirements (performance ...

culture, encouraging peer to peer feedback and evolving healthy, curious and humble teams. Tech Stack: Python, Javascript/Typescript, React/React Native, AWS, GraphQL, Snowflake, Airflow, DDD. This is an incredible opportunity for a Senior Software Engineer to join a unique company as they embark on a period ...

product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. Our tech stack is Python with GraphQL, React with , PostgreSQL and noSQL databases, running on AWS. What you'll do... Work within a dedicated cross-functional team on key products ...

week in London 🌍 Perks: Remote working, £1k annual flexible benefit, 30 days "work from abroad" p/a 🛠 Tech Stack: Python, FastAPI, gRPC, GraphQL, AWS (EKS), Microservices The Mission 🎯 This scale-up is transforming the insurance landscape through real-time data and telematics. By leveraging smart technology, they reward safe ...

projects simultaneously. "Even Better" If You Have... Experience with CI/CD with an emphasis on a well-maintained testing pyramid. Experience with Federated GraphQL , Kafka , or other event-driven architectures. Experience with Protobuf and gRPC for defining service interfaces and efficiently serializing structured data. Experience with NoSQL data stores ...

video) What they’re looking for: Strong Staff/Principal level engineering experience Deep expertise across but not limited too: JavaScript, React.js, Node.js, TypeScript, GraphQL, AWS, Docker, CI/CD Experience working in startup/scale-up environments Comfortable operating with ambiguity and pace Able to challenge founders, shape direction ...

supporting infrastructure: git, microservices, containers, etc. Comfortable working with numbers and data, with or without prior trading/finance experience. Preferred Qualifications & Experience GraphQL/Apollo Client. Experience building Single Page Applications (SPAs). Reactive mobile UI development experience. Experience with Material UI or similar component libraries. Familiarity with WebSockets ...

Experience with data platforms such as Snowflake or data lakes Designing ETL/ELT pipelines Experience with event-driven architectures API design experience (REST, GraphQL, OpenAPI) Modern Architecture Microservices architecture Event streaming and messaging platforms Distributed systems design Collaboration & Leadership Experience working closely with software engineering teams Ability to guide ...

Query Apollo Client Testing Jest React Native Testing Library strong requirement many test files UI Styled Components 6, Reanimated, Gesture Handler, Lottie, Skia APIs GraphQL with codegen, REST with React Query Thirdparty Sentry, NewRelic, Optimizely, Braze, Auth0, Contentful Agile Work Experience ...

right questions, and making reasonable bets. Bonus Experience with IoT/telemetry, energy data, or time-series workloads Familiarity with event-driven architectures, GraphQL, Airflow, or Python Personal interest in energy, climate tech, or automation Track record of owning complex systems end-to-end 5+ years of experience This role ...

/11) with a desire to transition • 7+ years working across JVM-based backend development • Strong experience with Spring Boot and building RESTful or GraphQL services • Solid understanding of relational databases such as PostgreSQL or MySQL • Experience working within BDD or TDD environments, alongside CI/CD tooling such ...

Confluence) • Knowledge of IIS, Windows Server, Active Directory, and networking concepts • Experience in live service support, incident investigation, and root cause analysis • Desirable: Node.js, GraphQL, Adobe Experience Manager, MySQL, JBOSS, Oracle #LI-JW1 Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership ...

Strong background designing and building distributed systems and APIs Proven experience building or scaling payment, ledger, or transaction systems Experience working with Elixir and GraphQL (strongly preferred) Background in eCommerce or transaction-heavy, real-time platforms operating across regions Ability to evolve existing systems pragmatically in fast-moving environments Comfortable ...

designing and implementing pipelines using DAGs (e.g., Kubeflow, DVC, Ray). Ability to construct batch and streaming microservices exposed as gRPC and/or GraphQL endpoints. Demonstrable experience in parameter‐efficient fine‐tuning, model quantization, and quantization‐aware fine‐tuning of LLM models. Hands‐on knowledge of Chain‐of‐Thoughts ...