251 to 275 of 437 Node.js Jobs in London

Senior II - Back-End Engineer Location: London

Location
Greater London, England, United Kingdom
language, but prior experience with it isn't mandatory. We take a tech-agnostic approach and welcome engineers from various backgrounds, such as Java, Node.js, Ruby, Scala, .NET, PHP, or Go. What we truly look for is an eagerness to learn the language and the adaptability to hit the ground ...

Applied AI Engineer New

Location
Greater London, England, United Kingdom
Strong architectural judgment and ability to decide when to use LLMs, deterministic software, human intervention, or a combination of approaches Experience with TypeScript/Node.js , or strong experience building AI systems in Python with the ability and willingness to apply that knowledge in a TypeScript-first environment High autonomy, ownership ...

Senior Backend Engineer - Investment Technology

Location
City Of London, England, United Kingdom
capabilities, primarily in Java and C#, for consumption by multiple Investments applications and teams.Maintaining and enhancing existing services, including those written in Python and Node.js, and driving their modernization where appropriate.Improving service reliability, performance and observability through automated testing, telemetry, monitoring and alerting.Providing support for production services and their consuming …/or C#, our primary languages for all new services. Willingness to work across both is expected.Polyglot Flexibility - Working knowledge of Python and Node.js, with the ability to support, debug and enhance existing services written in those languages.API Design - Strong experience designing and versioning well-structured, secure and reusable APIs ...

Forward Deployed Engineer

Location
Greater London, England, United Kingdom
site to understand their workflows, constraints and business objectives and translate prototypes into production-grade applications on the agreed enterprise stack (React, Python or Node.js, PostgreSQL, AWS).* Own the full technical lifecycle of the “last mile” – from discovery and architecture proposals through hardening, test coverage, performance, UX consistency … technical work end-to-end.**Technical Knowledge*** Strong proficiency in Python and full-stack engineering: React (or equivalent modern front-end framework) and Node.js back-end, PostgreSQL; additional languages (Go, Java) a plus.* Hands-on experience with cloud platforms (AWS), Docker and Kubernetes; CI/CD in GitLab (or equivalent ...

Full Stack Engineer — Hybrid: Build Scalable APIs & Apps

Location
Greater London, England, United Kingdom
Bell is hiring an experienced Full Stack Engineer to help build services powering apps and websites. You’ll work across the stack with Node.js, TypeScript, React, MongoDB and AWS, collaborating with Product, UX and Business teams to deliver reliable, scalable solutions. The team emphasizes engineering excellence, autonomy, and continuous improvement ...

Fullstack Engineer — Build Scalable People Ops SaaS

Location
Greater London, England, United Kingdom
Zelt Technology Limited is hiring a Fullstack Engineer to develop features end-to-end using modern technologies like React, TypeScript, Node.js, and PostgreSQL. Candidates should have 4-7 years of experience in a product-driven environment and a strong knowledge of AWS services. Join a growing SaaS company with ...

Lead Test Engineer - Automation & Quality (Public Sector)

Location
Greater London, England, United Kingdom
managers and architects to design and execute robust test plans across the full lifecycle. You will work with AWS-based stack (serverless, TypeScript/Node.js, JVM) and contribute to advancing testing excellence across government digital services. #J-18808-Ljbffr ...

Senior Full-Stack Engineer for Ads Platform (Hybrid, London)

Location
Greater London, England, United Kingdom
Stack Engineer to build an advertising management platform focused on Meta/Facebook ads and bulk campaign launches. You will work across Next.js, React, Node.js, Prisma, and REST APIs to ship full-stack features and scalable integrations. This hybrid, London-based role offers the chance to work with top advertisers ...

Senior Cloud Media Platform Engineer | Hybrid London

Location
Greater London, England, United Kingdom
storage components, and automation for media processing as part of a small engineering team. The role requires hands-on scripting (Python/Go/Node.js), AWS or GCP expertise, and strong IaC with Terraform. It offers a hybrid London working model and a proactive, inclusive culture. #J-18808-Ljbffr ...

Customer-Facing AI Solutions Engineer

Location
Greater London, England, United Kingdom
ensuring they extract maximum value. You will combine frontend/backend development with AI/ML tuning, build features using React/TypeScript/Node.js/Python, and manage integrations with enterprise systems while collaborating with Product, Eng, and Customer Success. In this role you will drive onboarding, implementation ...

Senior Payments Systems Engineer

Location
Greater London, England, United Kingdom
Transak is seeking a Senior Software Engineer (SDE 3) to own high-throughput payment microservices end-to-end. You will design, build, and operate Node.js services across currencies and jurisdictions, collaborating with Risk, Compliance, and banking partners. The role emphasizes architecture decisions, mentoring engineers, and staying hands-on in code ...

Senior Application Engineer — SaaS Contract Intelligence

Location
Greater London, England, United Kingdom
facing features, and collaborate across product, design and engineering to solve contract lifecycle challenges. You will work with a modern stack (TypeScript/React, Node.js, Python, PostgreSQL, Redis, Elasticsearch), participate in on-call rotations, and mentor teammates while #J-18808-Ljbffr ...

Senior Backend Engineer - AI-Powered SaaS

Location
Greater London, England, United Kingdom
Data Science teams to deliver AI-powered publishing tools. You will design, build, and maintain scalable server-side services using Python, Java, or Node.js and RESTful APIs. You will optimize data storage, deploy services, and contribute to architecture decisions while learning new technologies. Benefits include free breakfast, team lunches, annual ...

Senior AI Software Engineer - GenAI & LLM Systems

Location
Greater London, England, United Kingdom
Engineers and LLM Engineers to build, deploy and support enterprise-scale AI-enabled applications for secure public sector environments. Roles require strong foundations in Node.js and/or C#/.NET, with hands-on experience creating AI-powered systems using LLMs, RAG, and agentic AI patterns. Candidates should be familiar ...

Senior AI Engineer, GenAI Systems & Orchestration

Location
Greater London, England, United Kingdom
functional teams, and ensure scalable, secure delivery of AI-enabled platforms. You will drive backend/backend-api development in Python and TypeScript/Node.js, integrate with cloud platforms, and establish robust evaluation, observability and cost-management practices #J-18808-Ljbffr ...

Tech Lead, Cloud-Native Engineer (Hybrid)

Location
Greater London, England, United Kingdom
customer contact technology. You will own architectural decisions, drive API design and mentor engineers to build secure, scalable cloud-native solutions using Node.js, React, TypeScript and AWS. Working with product managers, architects and engineering teams, you’ll balance customer needs, security and performance while delivering maintainable software that supports Avios ...

Hands-on Tech Lead — Residential Ops Platform (React/TS)

Location
City Of London, England, United Kingdom
team as it grows. You will work across front-end and back-end, ensuring secure, scalable multi-tenant applications using React, TypeScript, .NET Core, Node.js and REST/GraphQL, while guiding architecture and delivery. #J-18808-Ljbffr ...

Aspiring Full-Stack Developer Intern

Location
Greater London, England, United Kingdom
excellent user experience. Candidates should have a B.E/B.Tech/MSc and 0-2 years of experience in software development. Strong skills in Node.js and knowledge of modern frameworks and Agile methodologies are essential. Join our dynamic team to shape innovative web solutions. #J-18808-Ljbffr ...

Foundational Full-Stack Engineer - Web3 & AI (London)

Location
Greater London, England, United Kingdom
including feature shipping, API design, and integration of blockchain technology. Candidates should have over 4 years of experience with TypeScript, React/Next.js, and Node.js, and be prepared to work autonomously in an early-stage environment. The position is located in London and offers a unique opportunity to shape ...

Senior Cloud Platform Engineer - AI Enablement (GCP/Azure)

Location
Greater London, England, United Kingdom
will help scale AI‐driven capabilities, ensure safe, cost-aware operations, and empower engineers to ship faster with automation. You will work across .NET, Node.js and Python stacks, shaping how AI is adopted, building tooling, and driving #J-18808-Ljbffr ...

Software Engineer — Powering Restaurant Ops & Planning

Location
Greater London, England, United Kingdom
operate software that helps restaurants forecast sales, manage hours and maintain master data, contributing across the full stack. You'll work with TypeScript/Node.js and Go, collaborate across teams, own features end-to-end, and help improve reliability and performance while learning new technologies in a fast-paced restaurant ...

Launch Your Software Career: Level 6 Apprenticeship in London

Location
Greater London, England, United Kingdom
Solutions Professional (Software Engineer pathway) from a UK university. As an apprentice you will join Platform Evolution and Media Services teams, work with React.js, Node.js, Typescript and AWS, and contribute to BBC products used by #J-18808-Ljbffr ...

Senior AI Agent Developer

Location
Greater London, England, United Kingdom
Design or equivalent professional experience. Experience integrating with complex desktop or enterprise software through APIs or plugin SDKs. Strong programming capability in TypeScript/Node.js or C#/.NET, with the confidence to work across both environments. Production experience building LLM agents that perform real actions through tool calling, orchestration ...

Android Engineer

Location
Greater London, England, United Kingdom
discussions. Implement software development best practices, including testing and code reviews. About you Commercial experience with JavaScript, including ES6/7 features. Experience with Node.js and related frameworks (e.g., Express, Sequelize). Experience working with relational databases and NoSQL databases. Understanding of web design patterns. Experience working in a collaborative ...

Product Engineer (Backend)

Location
Greater London, England, United Kingdom
customer problems. Who you are You’ll have experience with functional programming. Familiarity with Elixir is a plus, but other languages like Scala, GoLang, Node.js, Haskell, Clojure, and F# are also great. Infrastructure management experience at scale; ideally you should be comfortable in using AWS and terraform. An understanding ...