26 to 50 of 63 GraphQL Jobs in London

Engineering Team Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
backend or full‐stack engineering experience, with strong TypeScript/JavaScript and Node.js skills. Experience designing versioned APIs (REST/OpenAPI and/or GraphQL with schema governance). Experience working in platform or infrastructure engineering roles — comfortable with work whose primary customer is other engineers. Ability to navigate ambiguity ...

Principal Software Engineer, Mobile (React Native)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Express, Fastify) for the API layer React.js or React Native for Web Native experience (Kotlin, Swift) for the bridge and the trickier native modules GraphQL, GCP, Firestore, Event‐Driven architecture Hands‐on experience building with LLM or AI APIs Benefits Competitive salary, plus meaningful equity 25 days holiday, plus ...

Agile Delivery Manager

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£88000/annum
understanding of delivery governance, risk management, and reporting Experience using tools such as Jira and Azure DevOps Experience with modern technologies such as AI, GraphQL Experience with use of latest Agile tracking and forecasting methods Strong communication and influencing skills Problem-solving and decision-making Resilience and adaptability Agile ...

Lead Developer - SC or DV Cleared (Azure / .NET / Microservices)

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
DevOps) Infrastructure as Code (Bicep/Terraform) Containerisation Docker, Kubernetes Architecture & Integration Experience designing: Microservices & event‐driven systems (CQRS, Event Sourcing) API integrations (REST, GraphQL) Experience integrating with third‐party and enterprise platforms (e.g. CRM, payment systems) Front‐End/Full Stack (Desirable) Experience with Angular or React Strong understanding … Core/.NET 8+ Azure (Functions, Service Bus, AKS, Key Vault, etc.) Microservices & event‐driven architecture Docker/Kubernetes Azure DevOps (CI/CD) GraphQL/REST APIs What We’re Looking For A strong technical leader who remains hands‐on Someone comfortable working in complex, fast‐moving government environments ...

Lead Software Data Engineer in London - LinuxRecruit

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
languages and frameworks: JavaScript, React, TypeScript, Python, and GoLang. In addition, they'll also be looking for those with hands-on use in Neo4j, GraphQL, AWS, and Kubernetes. Demonstrating..." ``` #J-18808-Ljbffr ...

ML Engineer

Hiring Organisation
Opus Recruitment Solutions
Location
London, Finsbury Square, United Kingdom
Employment Type
Contract
Contract Rate
£0 - £400/day
productisation, not just for research/prototyping) Nice to have: - A deeper understanding on ML Models/ML Data Science from an API perspective (GraphQL, gRPC, REST) - Start-up or HealthTech experience. This is an urgent requirement, please reach out ASAP to Adam Akhtar today (17th July) to avoid missing ...

Lead Mobile Engineer - contract - outside IR35

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Cross-Functional Collaboration Collaborate with backend and web teams to ensure seamless API integration and a consistent user experience Deep knowledge of REST/GraphQL is a plus Innovation & Growth Stay current with industry trends and assess emerging technologies for future mobile strategy, e.g.: KMP+CMP vs Skip Community & Advocacy Drive ...

Senior Software Engineer, Enterprise Platform (Remote)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
work on their Enterprise Platform. This role is remote and outside IR35, requiring a senior-level engineer with a strong background in TypeScript, GraphQL, and PostgreSQL. You will be responsible for designing secure, multi-user workflows, developing APIs, and ensuring system reliability. The ideal candidate thrives in fast-paced environments ...

Lead Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
assistance in 4-hour slots Requirements 8+ years of experience as a senior NET software engineer Must Have: C#, .Net 6 or later, REST, GraphQL, Docker, RabbitMQ, Postgres, OpenTelemetry Good to have: MassTransit, MartenDB, CQRS, Event Sourcing, Frontend development Hands-on experience with microservices and transformation from monolithic to microservices ...

Lead Mobile Engineer - contract - outside IR35

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
debt Cross‐Functional Collaboration Collaborate with backend and web teams to ensure seamless API integration and consistent user experience Deep knowledge of REST/GraphQL is a plus Innovation & Growth Stay current with industry trends and assess emerging technologies for future mobile strategy (e.g., KMP+CMP vs Skip) Community & Advocacy Drive ...

Senior Product Manager - API Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
patterns Strong communication skills with both technical and non‐technical stakeholders Preferred experience Fintech, payments, FX, or financial infrastructure experience Experience with REST APIs (GraphQL a plus), OAuth 2.0, API keys, and authentication models, event‐driven systems and webhooks Experience working with external developers or partners Level‐specific expectations ...

Applied AI ML Lead - DocAI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Experience of big data technologies (e.g. Spark, Hadoop) Have constructed batch and streaming microservices exposed as REST/gRPC endpoints Familiarity with GraphQL We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. ...

Senior Backend Engineer - Developer Experience

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
during the week! Choose where to work from that works best for you. You have a deep understanding of API design, including RESTful, GraphQL and best practices/principles for structuring efficient, secure, scalable and maintainable APIs as well as networking and web application layer protocols. You have strong experience ...

Backend/API Engineer, Money as a Service

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
internal and external users Preferred Qualifications Experience with large-scale financial tracking systems Good understanding and practical knowledge in cloud based services (e.g. gRPC, GraphQL, Docker/Kubernetes, cloud services such as AWS, etc.) Office-assigned Stripes in most of our locations are currently expected to spend at least ...

Lead Software Engineer - Data in London - LinuxRecruit

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
months ago Tech stack Python TypeScript Software Engineer Required Skills To optimize the platform's performance, a rough tech stack is in play. GraphQL or Neo4j experience is highly desirable, programming with Python or TypeScript is again advantageous. You should know the full SDLC and be comfortable with architecting solutions. ...

Business Analyst

Hiring Organisation
OpenSourced Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Scrum delivery methodologies. Knowledge of eCommerce platforms such as Magento 2, Adobe Commerce, Shopify, BigCommerce, Salesforce Commerce Cloud or Shopware. Understanding of REST APIs, GraphQL or SOAP services. Experience using API testing tools such as Postman. Hands-on experience with AI tools including ChatGPT, Claude or Gemini. Strong analytical ...

Generative AI Executive Director — Production LLM Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
pipelines using DAG frameworks, including custom operator development and pipeline optimization. Architect and implement high‐throughput, low‐latency microservices with gRPC, REST, and GraphQL, including protocol buffer schema design, streaming endpoints, and load balancing. Apply hands‐on experience with parameter‐efficient fine‐tuning (LoRA, QLoRA, IA3), model quantization (INT8, FP16 ...

Principal Solutions Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
broader customer data and identity stack. Strong grasp of client‐side integration nuances: mobile and web SDKs, push notification frameworks, webhooks, and REST or GraphQL APIs, including how they hold up under enterprise scale and multi‐region deployments. German language proficiency. Not required, but useful for DACH market conversations. Experience ...

Senior Engineer (Full-Stack)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
TypescriptProficient in React, Redux, ReactQueryExperience with modern JavaScript frameworks - ReactKnowledge of version control systems (Git)Understanding of cross-browser compatibilityFamiliarity with RESTful APIs, GraphQL and WebsocketsExperience with CSS pre-processors e.g. TailwindBack-end skillsProficiency in backend programming languages (Typescript and/or other OOP language such as c#/Java … Strong database knowledge (SQL and NoSQL)Proficiency with RESTful APIs and GraphQL APIs and WebsocketsExperience with microservices architectureKnowledge of version control systems (Git)Experience with TerraformExperience with automated testingExperience with AWS (AWS Lambda, AWS Fargate, Amazon API Gateway, AWS AppSync)Worked within an Agile Cross-functional delivery team.Developing well tested ...

Engineer C# (Full Stack)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Group OverviewThe TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through ...

Senior Mobile Engineer: Real-Time Apps & AI-Driven UX

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
devices. Join a fast‐growing, tech‐driven retail group and shape how millions interact with our ecosystem using React Native or Flutter, REST/GraphQL, and modern deployment #J-18808-Ljbffr ...

React Native Lead Developer

Hiring Organisation
Hunter Bond
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
amazing opportunity! The following skills/experience is essential: Strong React Native development background Demonstrable experience delivering applications in both iOS and Android GraphQL and Restful APIs Solid understanding of the full mobile development life cycle Good communication skills Salary: Up to £95,000 + bonus + package Location: London ...

Senior Mobile Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
mobile apps that real users depend on. Strong with React Native or Flutter (native iOS/Android a plus). Experience integrating REST/GraphQL APIs, payments, maps, and real-time features. A feel for mobile UX and an eye for detail. Self-directed, curious, and comfortable owning whole features. ...

Science - Red Team Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
experienced building extensions/scripts. Experience with developing and maintaining web‐focused tooling and automation (Burp extensions, custom scanners, authenticated API fuzzers, GraphQL mutation explorers, Puppeteer/Playwright scripts). Experience with source code reviewing for control flow and security flaws A passion for constructively break things Want ...

Senior Staff Forward Deployed Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Job Description Responsibilities Customer Delivery Lead: end‐to‐end solution development for multiple high‐stakes customer deployments; manage technical strategy, design quality, and roadmaps for Agentic AI rollouts at enterprise scale. Primary technical point of ...