351 to 375 of 437 Node.js Jobs in London

Software Development Engineer III, Fiat Payments (Backend)

Location
Greater London, England, United Kingdom
while staying hands-on in code daily. Key Responsibilities Payment Systems Ownership & Architecture Own payment microservices end-to-end — design, build, deploy, and operate Node.js services (orders, payment, reconciliation, virtual accounts, payout orchestration) handling real-time financial transactions at scale. Design for correctness and failure: idempotent, retry-safe, reconciliable systems … backend/distributed systems; prior experience in fintech, payments, on-and-offramp provider, or banking infrastructure strongly preferred . Strong hands-on expertise in Node.js (TypeScript preferred) for performant, production-grade backend services. Deep experience with MongoDB — schema design, aggregation pipelines, indexing strategy, and performance tuning at scale. Proficiency with ...

Mid-Level Software Engineer - Backend & Full-Stack (TypeScript)

Location
Greater London, England, United Kingdom
them the tools to shape strategy, reach their most valuable guests and drive direct bookings. We’re a collaborative team working mainly in TypeScript (Node.js and React) with Google Cloud Run, Kubernetes, Terraform and BigQuery. Day to day we build backend services, integrations with platforms like the Google … ideas and helps shape the squad’s direction, not just the code. 🛠️ Our Tech Stack Languages: Primarily TypeScript, with some Kotlin and Python Backend: Node.js, experimenting with modern alternatives like Bun Frontend: React for admin tools and reporting (minimal UI work) Infrastructure: Google Cloud Run, Kubernetes, Terraform Data: BigQuery, PostgreSQL ...

Senior Back End Node.js Developer | Hybrid London + Remote

Location
Greater London, England, United Kingdom
Senior Backend Node.js Developer at Cabiri, you will play a crucial role in designing, developing, and maintaining our software solutions. You will work collaboratively with cross‐functional teams, utilizing your expertise in back‐end technologies to create scalable and high‐performance applications. The successful candidate will be passionate about technology ...

Software Engineering Tech Lead – Node.js, React & TypeScript

Location
Greater London, England, United Kingdom
build secure, reliable and high‐performing solutions that make a genuine difference to how we support millions of Avios customers. Working with technologies including Node.js, React, TypeScript and AWS, you'll help evolve our technology, tackle complex integrations and introduce new capabilities that improve both the customer and colleague experience. … software engineering with architectural ownership and technical leadership. You’ll design, build and evolve scalable, cloud‐native applications and services using modern technologies including Node.js, React, TypeScript and AWS. Working closely with our Product Manager, you'll translate product ambitions into practical technical solutions, making architectural decisions that balance customer ...

Engineering Team Lead: Drive Scalable, Secure Web Systems

Location
Greater London, England, United Kingdom
drives business outcomes. You will own end‐to‐end delivery—from discovery through production operations—across frontend and backend platforms (e.g., .NET/C#, Node.js, React). The role demands strong architectural judgment and excellent stakeholder communication. #J-18808-Ljbffr ...

Vacancy for Research Projects Data Analyst at The National Archives (UK)

Location
City Of London, England, United Kingdom
collections and activities is at the heart of what we do. This role will support two major ongoing projects. EHRI-UK is the national node of the EHRI project, a European Research Infrastructure Consortium (ERIC) committed to trans-national Holocaust research, commemoration and education. One of the central tenets ...

Full Stack Product Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £90,000 per annum
assisted experiences including search, retrieval, document review and decision-support workflows. Creating reusable component libraries and scalable design systems. Developing APIs and integrations using Node.js, Python and cloud-native technologies. Owning deployment, monitoring, support and continuous improvement within Azure environments. YOUR SKILLS AND EXPERIENCE: You will bring strong capability … Full Stack Engineering experience within a product, SaaS or startup environment. Strong TypeScript expertise. Strong React experience, with Next.js experience Backend development experience with Node.js and/or Python. Experience building, shipping and supporting production applications used by real customers and end users. Experience developing AI-enabled features involving LLMs ...

Junior Software Developer

Location
Greater London, England, United Kingdom
just theoretical) experience applying ML in a real-world or industry setting. Key responsibilities Develop and maintain web applications using React.js (frontend) and Node.js (backend). Build and integrate backend services and APIs using Python with a web framework (e.g. Django, Flask, or FastAPI). Design, query, and manage relational … manage applications using basic AWS cloud services. Collaborate with cross-functional teams to deliver clean, scalable, and maintainable code. Required skills Frontend: React.js. Backend: Node.js, Python (with experience in at least one web framework). Databases: PostgreSQL, SQL, MongoDB. Machine learning: Practical/industrial experience with object detection, model training ...

Software Engineer

Hiring Organisation
VIQU IT
Location
London, Cornhill, United Kingdom
Employment Type
Permanent
Salary
£43000 - £50000/annum
Build and maintain RESTful APIs to support business-critical systems and applications Contribute to frontend development using Vue.js and develop applications and services using Node.js Deliver software solutions across the full development lifecycle, from initial design through to deployment and ongoing support Write clean, maintainable and well-tested code, ensuring … applications Strong backend development experience using Java and Spring Boot Demonstrable experience designing and developing RESTful APIs and scalable backend services Experience working with Node.js to develop and maintain applications or services Exposure to frontend technologies, ideally Vue.js Good understanding of software design principles, coding standards and engineering best practices ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
issues, and keeping stakeholders informed Experience & Skills You have 5+ years of professional software development experience, or equivalent You’re strong in TypeScript and Node.js, and comfortable working in React You’ve designed, shipped and run production services, including RESTful APIs and microservices - and lived with the consequences of your … moving pods that use AI tools like Claude Code every day, and every engineer owns and reviews what they ship. Our stack is TypeScript, Node.js and React, with microservices on AWS - we run on Fargate today and are moving to Lambda, API Gateway and SQS. We practise TDD and have ...

Senior Cloud Platform Engineer London

Location
Greater London, England, United Kingdom
shared infrastructure our product teams depend on and to expand how we use AI across the platform. Our services are built in .NET, Node.js, and Python, primarily on both GCP and Azure. You'll work across the platform stack, and you'll be the person nudging us to make … Comfortable with containerisation (Docker) and deployment on Kubernetes or Cloud Run. Infrastructure-as-code with Terraform. Proficient in at least one of .NET (C#), Node.js, or Python. Observability experience with Datadog or cloud-native logging and monitoring (GCP Cloud Operations or Azure Monitor). A track record of driving adoption ...

Lead / Principal AI Engineer

Location
Greater London, England, United Kingdom
outputs, fine-tuning and retrieval strategies, balancing technical requirements with commercial objectives. Design and develop backend services, APIs and integration layers using Python, TypeScript, Node.js and modern cloud technologies. Collaborate with front-end, mobile and product engineering teams to integrate AI capabilities into modern web applications, including React, Next.js … systems in production, with a strong track record of delivering commercially deployed AI engineering solutions. Advanced proficiency in Python and/or TypeScript/Node.js, with a commitment to writing clean, testable and maintainable production code. Strong practical understanding of LLM architectures, agentic workflows, tool calling, RAG, embeddings, vector databases ...

Backend Developer

Location
Greater London, England, United Kingdom
Responsibilities Architecture & API Engineering: Design, implement, and maintain scalable, robust, and clean server-side application logic using modern backend languages (Node.js/Python/Go or equivalent modern stacks). Build out high-performance, well-documented RESTful and GraphQL API pipelines to serve responsive mobile and desktop client interfaces. Database … engineering tier focused on production-grade B2C/B2B platforms or high-volume marketplace solutions. Core Language Proficiencies: Deep framework and programming mastery in Node.js (TypeScript), Python (Django/FastAPI), or Go ecosystem components. Data Operations: Strong practical background working across PostgreSQL/MySQL schemas, NoSQL document sets, caching mechanics ...

Azure Cosmos DB Developer

Location
London, United Kingdom
Azure Cosmos DB Developer Location: London (Hybrid - 1-3 days in the office) Contract: 6 Months We are looking for an experienced Azure Cosmos DB Developer to join a major financial services technology programme. This ...

Full Stack Engineering Lead (JavaScript, Node, React)

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £110000/annum
stay hands-on while helping a team build technology that makes a meaningful difference? We're recruiting a Full Stack Engineering Lead (TypeScript, React, Node) for a tech for good business in central London (near Holborn). This is an opportunity to combine technical leadership, practical engineering and a clear ...

Full Stack Engineering Lead (JavaScript, Node, React)

Hiring Organisation
Spectrum IT Recruitment Limited
Location
City of London, South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
stay hands-on while helping a team build technology that makes a meaningful difference? We're recruiting a Full Stack Engineering Lead (TypeScript, React, Node) for a tech for good business in central London (near Holborn). This is an opportunity to combine technical leadership, practical engineering and a clear ...

Software Development Engineer

Location
Greater London, England, United Kingdom
frontend development will be your core focus, this is a full-stack role in a lean, AI-enabled team: you will also contribute to Node.js and .NET services and integrations, including AI-powered capabilities. Working under the guidance of the Lead, you will be proactive, adaptable and keen to learn … improvements, primarily using Vue and TypeScript Contribute to full-stack delivery by integrating frontend applications with APIs and services, and by developing and maintaining Node.js and .NET backend components where needed Collaborate closely with stakeholders to build clear, practical user journeys and interface designs, using sound UX judgement Build ...

Senior Platform Engineer (Cloud Media Platforms)

Location
Greater London, England, United Kingdom
video ingest or similar workflows is required. You will need strong Cloud DevOps skill set, hands on scripting of either Python, Go, or Node.js for automation and API development, hands‐on expertise with AWS (preferred) or GCP and Infrastructure as Code (Terraform) etc Job Description Main Responsibilities Lead the architecture … cloud, or backend software engineering such as cloud-based media platform components, including storage, ingest, and workflow services. Proficiency in scripting Python, Go, or Node.js for automation and API development. As a senior member of a small technical team you should have an architecture mindset, able to design and code ...

Applied AI Engineer – LLM & Agentic Systems

Location
Greater London, England, United Kingdom
Europe (UK working hours) Salary: €100,000–€150,000 annually Contract: Full-time | Permanent or B2B Equity: Competitive equity options Tech Stack: TypeScript, Node.js, PostgreSQL, Python, LLMs, Agentic AI Visa sponsorship: Sponsorship or visa transfers may be possible for candidates already based in London. New international relocation is not offered … scalability. Essential Requirements Software Engineering Background 3+ years of professional software engineering experience , with strong backend development expertise. Hands‐on experience with TypeScript/Node.js , or strong Python backend experience with willingness to work in a TypeScript-first environment. Experience designing APIs, integrating databases, and building scalable production applications. Strong ...

Software Engineer

Location
London, England, United Kingdom
doubt be opportunities to contribute to other exciting projects in CDA, so some experience or a willingness to learn other technologies such as React, Node.js and AWS is a bonus. Are you the right candidate Essential • Excellent PHP skills • Excellent experience designing and optimising relational database systems • Familiarity with frontend … continuous delivery Desirable • Experience identifying and fixing accessibility issues • jQuery experience • Experience managing or working on legacy systems • Experience with data flow modelling • React, Node.js & AWS skills About the BBC The BBC is committed to redeploying employees seeking suitable alternative employment within the BBC for different reasons and they will ...

Amazon Connect, Principal Consultant

Location
Greater London, England, United Kingdom
logic, and IVR solutions for voice and digital channels (live chat, voice, written channels) Build and deploy serverless integrations using AWS Lambda (Python/Node.js), API Gateway, DynamoDB, Kinesis, and CloudFormation/Terraform connecting Amazon Connect to backend systems (Pega CRM, internal APIs) Implement infrastructure as code (Terraform/CloudFormation … engineering experience Demonstrable experience delivering multiple Amazon Connect implementations in enterprise environments, including design, integrations, routing, telephony, and production support Proficiency in Python or Node.js with production deployment experience Experience with AWS services: Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, CloudFormation or Terraform Hands‐on experience with REST API development ...

Senior Software Engineer (React/TypeScript)

Hiring Organisation
Hackajob Ltd
Location
South West London, South East, United Kingdom
Employment Type
Permanent Contract, On-site
continuous delivery Strong problem-solving skills with the ability to break down ambiguous technical problems, evaluate solutions and communicate technical decisions clearly Experience with Node.js is beneficial, particularly for contributing across full-stack engineering teams, while experience with Rust is an advantage but not required Experience with Model Context Protocol … from initial design through development, testing and production Contribute across the technology stack where needed, including integration and backend development using technologies such as Node.js and, where appropriate, Rust Design reliable and secure service-to-service integrations, considering authentication, application programming interface contracts, resilience and appropriate access controls Develop thorough ...

Senior Software Engineer (React/TypeScript)

Hiring Organisation
Moody’s Corporation
Location
London, England, United Kingdom
integration and continuous deliveryStrong problem-solving skills with the ability to break down ambiguous technical problems, evaluate solutions and communicate technical decisions clearlyExperience with Node.js is beneficial, particularly for contributing across full-stack engineering teams, while experience with Rust is an advantage but not requiredExperience with Model Context Protocol … features from initial design through development, testing and productionContribute across the technology stack where needed, including integration and backend development using technologies such as Node.js and, where appropriate, RustDesign reliable and secure service-to-service integrations, considering authentication, application programming interface contracts, resilience and appropriate access controlsDevelop thorough unit, integration ...

Technical Support Engineer - EMEA

Location
Greater London, England, United Kingdom
About the Role Factory is bringing autonomy to software engineering. We are looking for a Technical Support Engineer to ensure customers get maximum value from our developer‐centric platform. This position sits at the intersection ...

Technical Lead Software Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
London, England, United Kingdom
100000.00 - 110000.00 per annumCity of London, LondonPermanentTechnical Lead Engineer | Tech for GoodWant to stay hands-on while helping a team build technology that makes a meaningful difference We're recruiting a Technical Lead Engineer for ...