1 to 25 of 37 GraphQL Jobs in London

Backend Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
morebackend programming languages such as: Python Go Java Kotlin C# TypeScript/Node.js Ruby Rust Experience designing and consuming RESTful and/or GraphQL APIs. Strong understanding of SQL and database design principles. Experience with cloud platforms such as AWS, Azure, or GCP. Familiarity with containerisation technologies such as Docker ...

FullStack Solution Architect (Exp in RFP/RFI) - London, UK - Fulltime - Hybrid

Hiring Organisation
Capgemini
Location
Greater London, United Kingdom
Employment Type
Full Time
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 ...

Full Stack C# .NET Developer | Post-Trade Operations | ETD | Up to £140,000 | AWS | Financial Services | Hybrid, London

Hiring Organisation
VirtueTech Recruitment Group
Location
London Area, United Kingdom
outputs, cash movements or fee calculationsExposure to JavaScript and/or TypeScript in a fu ll stack contextExperience with Node.j s and/or GraphQL Full Stack C# .NET Developer | Post-Trade Operations | ETD | Up to £140,000 | AWS | Financial Services | Hybrid, London ...

Lead Solution Architect Endur (ETRM Gas & Power Trading)

Hiring Organisation
BP Energy
Location
South West London, London, United Kingdom
Employment Type
Work From Home
attribution, settlement, confirmations and regulatory reporting. Expert understanding of integration architecture in high-performance trading environments including messaging (JMS, MQ, Kafka), API design (REST, GraphQL, gRPC), event-driven patterns, ETL/ELT, real-time market data connectivity and STP workflows. Strong data architecture expertise, including canonical data models, data mesh ...

Full Stack Engineer

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
while gaining exposure to cutting-edge AWS architecture and engineering best practices. Key Skills: TypeScript React, Redux, React Query HTML5, CSS3, Tailwind REST APIs, GraphQL, WebSockets AWS (Lambda, Fargate, API Gateway, AppSync) Terraform, CI/CD, Containerisation SQL & NoSQL databases Git and automated testing Experience Required: Commercial experience ...

Principal Software Engineer

Hiring Organisation
Method Resourcing
Location
London Area, United Kingdom
/CD, IaC, TDD) Exploring and applying AI-driven engineering capabilities Tech environment TypeScript (Node.js) AWS (EKS, Lambda, RDS) Kubernetes Kafka (event-driven systems) GraphQL & REST APIs Terraform & Helm GitHub Actions DataDog What we’re looking for Proven experience designing large-scale distributed systems in the cloud Deep understanding ...

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
read and write API specs - Hands-on with TMF/ODA frameworks for product and service APIs - Expertise in integration patterns ( OpenAPI , REST, gRPC , GraphQL ) - Strong background in pub/sub and event brokers (Kafka, RabbitMQ) including security (TLS/SASL), scaling and schema evolution - Knowledge of headers, correlation/ ...

Java Developer

Hiring Organisation
Global
Location
Greater London, United Kingdom
Employment Type
Full Time
with DevOps tools such as Terraform, Jenkins, and GitHub Actions. Proficiency in modern Spring, Spring Boot, as well as Kubernetes and Docker. Experience in GraphQL - Knowledge of the latest (and anticipated) Java features. Experience leading incident response and implementing preventative measures. Knowledgeable in best practices for production support and adept ...

Software Engineer

Hiring Organisation
Chumley
Location
City of London, London, United Kingdom
Strong proficiency with React , modern JavaScript/TypeScript, and Vite or equivalent tooling. Back-end experience (e.g. Node.js or similar) with RESTful or GraphQL APIs. Experience integrating or working with Salesforce (APIs, webhooks, or data pipelines). Good understanding of application architecture, performance, and security. Comfort working in a small ...

Knowledge Graph Architect

Hiring Organisation
Thebes IT Solutions Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
lineage tracking Schema mapping Semantic data integration Metadata management Data quality frameworks Python (networkx, rdflib, py2neo) SQL Bash/Shell Scripting REST API integration GraphQL JSON-LD processing AI & Cloud Architecture AI Integration Cloud Platforms Governance & Operations RAG architecture design GraphRAG implementation Vector database integration LLM knowledge grounding Semantic retrieval ...

Principal Full Stack Engineer

Hiring Organisation
BrightBox Group
Location
London Area, United Kingdom
modern engineering practices. Previous technical leadership and mentoring experience. Background in financial services, payments, banking, or regulated environments is advantageous. Desirable gRPC or GraphQL AI/ML integration experience Event-driven architectures Regulatory or compliance-focused delivery ...

Full Stack Engineer

Hiring Organisation
Total Recruitment Group
Location
West London, London, United Kingdom
Employment Type
Permanent
Salary
£85,000
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 ...

Principal Software Engineer

Hiring Organisation
Formula
Location
London Area, United Kingdom
everyday engineering workflows~ Key Requirements: A strong track record delivering large-scale distributed systems in cloud environments Deep knowledge of API design - REST and GraphQL, and substantial hands-on experience with Kafka in a production environment Solid cloud platform experience, particularly AWS, and comfort with containerised infrastructure Proficiency in TypeScript ...

Software Engineer Middle/Back Office Asset Manager (Contract)

Hiring Organisation
Alexander Ash Consulting Limited
Location
Central London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £700 to £800 per day
Cursor, GitHub Copilot) with significant examples of delivery improvement AWS (S3, Lambda, EC2, Glue), Snowflake, Git, CI/CD, Datadog, MS SQL Server, REST, GraphQL, Airflow (as many as possible) Degree educated or higher in a relevant technical discipline from a leading university This is a £650-700/ ...

Back End Developer

Hiring Organisation
Harrington Starr
Location
London Area, United Kingdom
Strong experience working with AWS in a production environment Solid understanding of object-oriented programming Experience building and consuming APIs (REST and/or GraphQL) Familiarity with relational databases (Postgres preferred) Experience working in Agile teams Pragmatic, delivery-focused mindset Nice to have: Experience with AWS services such ...

Senior Presales Engineer

Hiring Organisation
Uniphore
Location
City of London, London, United Kingdom
security: designing, integrating, and securing API connections between AI platforms and business applications (e.g., CRM, ERP, data warehouses), with knowledge of protocols (REST, GraphQL) and authentication mechanisms (OAuth 2.0, API keys). Data and network architecture acumen – ability to discuss and propose solutions around data governance, network segmentation, and enterprise ...

Senior C# / React Developer - Energy Trading - London

Hiring Organisation
Options Group
Location
London Area, United Kingdom
with React Experience working in an agile scrum development model University degree (Bachelor or Master) in Computer Science or Maths Desirable Skills: Experience in GraphQL or gRPC Experience in Reactive Extensions (RX) Previous experience in the commodities or finance industry (hedge fund, investment banking, private banking, fintech ...

EN-Data Engineer

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
proficiency in Python and SQL. Experience with graph query languages such as SPARQL and Cypher. Hands-on experience with graph databases and frameworks (Neo4j, GraphQL, RDF, or similar). Experience working with cloud platforms such as AWS and/or Azure. Strong data modelling, analytical, and problem-solving skills. Excellent ...

Associate Data Architect

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
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 ...

Senior Full Stack Engineer (TypeScript)

Hiring Organisation
Spencer Rose Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 95,000 Annual
Doing Building scalable full stack applications using TypeScript across Front End and Back End services Developing modern user interfaces with React Designing and building GraphQL and REST APIs Working with NoSQL databases to support highly scalable applications Developing cloud-native services within AWS Contributing to architecture and technical design discussions … wider team Technology Stack Core Requirements Strong commercial experience with TypeScript Experience building applications across both Front End and Back End environments GraphQL NoSQL databases (DynamoDB experience is beneficial but not essential) AWS or similar cloud platform experience REST APIs Microservices architecture Automated testing and CI/CD practices ...

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 ...

Integration Architect

Hiring Organisation
INTEC SELECT LIMITED
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
Architecture, Enterprise Architecture, or Senior Systems Analysis. Strong experience integrating enterprise platforms including Microsoft Dynamics 365, WMS, or TMS solutions. Expertise in REST APIs, GraphQL, Azure Service Bus, Logic Apps, Event Grid, and file-based integrations. Strong understanding of data modelling, JSON, XML, and OData. Experience creating architecture diagrams, data ...

Software Engineering Manager - UCX (Web)

Hiring Organisation
Hargreaves Lansdown
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
performant, accessible, secure, and compliant with relevant standards and regulations. Platform & Integration Lead the integration of front-end platforms with backend services using GraphQL APIs, and third-party systems to deliver seamless end-to-end user experiences. Collaborate with backend, platform, and DevOps teams to ensure well-designed interfaces … using version control effectively, and working within modern development workflows. Solid understanding of secure API integration , authentication and authorisation flows , and modern UI architecture (GraphQL experience preferred). Comfortable leading design implementation and collaborating closely with Product and Design teams, using tools such as Figma to translate concepts into high ...

Senior Software Engineer II (Java/ Spring)

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
100400 to 167300 EUR Annually
reliable, and innovative solutions that accelerate scientific discovery. Key responsibilities: Design and implement graph-based search services. Develop applications using Java , Spring Boot, Spring, GraphQL , and GraphQL Federation . Integrate with databases, web services, or AWS services (Neo4j, DynamoDB, RDS, S3, Parameter Store, SQS, SNS, Kinesis) to support ingestion, storage … Requirements: Proven track record building scalable backend systems and APIs. Strong expertise in Java and the Spring Boot ecosystem . Hands-on experience with GraphQL API and REST API design. Solid background in cloud-native architectures with AWS and Kubernetes (EKS) . An advocate of best practices for rapid development ...

Senior Software Engineer I – Search and AI Platform

Hiring Organisation
Elsevier
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
86900 to 144600 EUR Annually
reliable, and innovative solutions that accelerate scientific discovery. Key responsibilities: Design and implement graph-based search services. Develop applications using Java , Spring Boot, Spring, GraphQL , and GraphQL Federation . Integrate with databases, web services, or AWS services (Neo4j, DynamoDB, RDS, S3, Parameter Store, SQS, SNS, Kinesis) to support ingestion, storage … . Proven track record building scalable backend systems and APIs. Strong expertise in Java and the Spring Boot ecosystem . Hands-on experience with GraphQL API/REST APIs design. Solid background in cloud-native architectures with AWS and Kubernetes (EKS) . An advocate of best practices for rapid development ...