1 to 25 of 37 Node.js Jobs in the City of London

with writing maintainable Python and Typescript, including experience of working with relevant libraries for data processing and backend API development (i.e., FastAPI, Pydantic, expressJS, NodeJS, NextJS API Router, etc) Good understanding of cloud deployment Strong understanding and proven experience working with browsers and web APIs including HTML Canvas, Drag ...

goals and scalability requirements. Mentorship: Mentor and guide junior developers, fostering a collaborative learning environment. API Development: Design and build RESTful API endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full ...

building, testing, deploying and supporting software across the full development lifecycle.Developing front-end applications using TypeScript, React and Redux.Building back-end services using Java, Node.js and REST APIs.Developing analytics and data processing components using Python.Designing data models and working with relational and document databases.Writing automated unit, integration ...

Strong experience using GitHub Actions within a CI/CD pipeline Solid Python knowledge Experience with front‐end technologies such as JavaScript and Node Experience working with Web Application Firewall (WAF) technologies and Cloudflare features Solid working experience with Git and SQL Knowledge of Terraform and experience working with Linux ...

including hardening AI features against risks such as prompt injection and unbounded model behaviour Desirable Criteria: Experience with FastAPI, async SQLAlchemy, and/or Node/Express Experience with React/TypeScript front-end development Experience with LangChain, LangGraph, or other multi-agent/LLM orchestration frameworks Experience configuring Azure ...

Server, Azure SQL, Entity Framework, CosmosDB Design & Style: HTML5, Responsive/Adaptive Design, CSS3, Bootstrap Frameworks: (Worked with one or more of) Angular, React, NodeJS, Vue.js, or equivalent JavaScript DevOps: Git, Azure DevOps, GitHub Nice-to-Have Skills Azure AI Foundry, Semantic Kernel or Autogen #J-18808-Ljbffr ...

core software engineering concepts, including APIs, databases, Git, testing, debugging, and application architecture.Familiarity with frontend and backend development using technologies such as React, Node/TypeScript, Python/FastAPI, or similar.Conceptual understanding of cloud platforms such as AWS, Azure, or GCP; hands-on deployment experience is beneficial but not required.Exposure ...

engineering excellence Agile delivery experience Excellent written and verbal communication skills Technical Skills Strong expertise in one or more of: C#/.NET Python Node.js React Microsoft Azure cloud platform Snowflake data platform Infrastructure as Code (IaC) CI/CD and DevOps practices Software architecture and design patterns Automated testing ...

sustain high-performing teams in an agile delivery environment. Strong hands-on engineering skills in modern web development and service development (for example, React; Node.js with TypeScript; Python). Demonstrated experience across the software development lifecycle, including design, implementation, testing, release, and production support. Experience establishing and operating engineering practices ...

Engineer or Principal Engineer within complex delivery environments. Strong experience developingbackend services using: Kotlin Java Spring Boot Python FastAPI Frontend development experience using: TypeScript Node.js Express Experience working within cloud-native environments and modern software delivery practices. Ability to operate independently and drive outcomes without direct team oversight. Strong stakeholder ...

keep data consistent. The fit: Strong TypeScript. You're comfortable owning a service end to end, from schema to deployment. Fastify or a similar Node.js framework, and enough HTTP know-how that it rarely surprises you. Event-driven instincts: you know what idempotency means in practice and why the outbox ...

systems. You’ll lead incident responses, design robust event-driven workflows, and partner with vetting teams to uphold trust at scale. Expect strong TypeScript, Node.js, and full-stack capabilities with Next.js. You’ll improve monitoring, auth, and data consistency while mentoring others in a fast-growing UK tech platform. #J ...

applications, with substantial hands-on responsibility rather than purely architectural oversight. Strong backend and database skills . Production experience with TypeScript/JavaScript and Node.js , API design, asynchronous programming, SQL and relational data modelling. Evidence of performance improvement. Practical experience profiling applications, diagnosing bottlenecks and reducing end-to-end latency ...

security (TLS), HTTP, virtual private clouds, subnets, security groups, load balancers and content delivery networks. Desirable: able to write code, not only configuration – Python, Node.js or similar – for tooling and automation. Desirable: exposure to platform engineering, developer experience or internal tooling as an explicit discipline. Desirable: experience of working with ...

production, and collaborate with Product, Design and business owners to improve the customer journey. You’ll work across app, web and backend services using Node.js/TypeScript on AWS, with React Native for mobile and Infrastructure as Code (Terraform). #J-18808-Ljbffr ...

infrastructure supports continuous product innovation Your background looks something like: Engineering experience in tech and product-driven environments Strong proficiency in TypeScript and Node.js Hands‐on experience with cloud infrastructure and infrastructure as code (we build on AWS using Terraform) Deep knowledge of relational databases (we use PostgreSQL) Familiarity with ...

each other’s growth and development. What you’ll need: At least 6+ years of experience in software engineering, with strong proficiency in C#, Node.JS, Databases (SQL, NoSQL) and 2+ years of experience working with AI/ML technologies, frameworks (e.g., TensorFlow, PyTorch), and developing machine learning models with Python. ...

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 ...

processes. Technical Requirements You should have deep expertise in data integration technologies and methodologies. This includes proficiency in programming languages such as JavaScript/Node.js, Python, or PHP, and extensive experience working with APIs. Understanding of database systems (both SQL and NoSQL) is essential, as is experience with ETL processes ...

will acquire a range of knowledge of financial products generally. Responsibilities Maintain and develop our risk‐engine, which is implemented in JavaScript/NodeJS and Java with an in‐house library of functions. Expose to various asset classes, including equities, foreign exchange, commodities, interest rates, inflation, credit defaults, etc. ...

will acquire a range of knowledge of financial products generally. Responsibilities: · Maintain and develop our risk-engine, which is implemented in JavaScript/NodeJS and Java with an in-house library of functions. · Expose to various asset classes, including equities, foreign exchange, commodities, interest rates, inflation, credit defaults, etc. ...

already have A track record of independently delivering and maintaining production software, integrations or automation in a commercial environment. Strong TypeScript and Node.js skills, including APIs, background jobs and integrations. Strong SQL skills and experience investigating and reconciling data across systems. Experience building straightforward web interfaces using React, Next.js ...

facing journeys across app, web and backend services, and own features in production with a focus on onboarding and engagement. You will work across Node.js/TypeScript, React Native/Next.js, and cloud infrastructure while driving measurable outcomes and strong operational ownership. #J-18808-Ljbffr ...

innovative AI models, working closely with cross-functional teams. The ideal candidate has over 6 years of software engineering experience and proficiency in C#, Node.JS, and AI technologies. The role emphasizes collaboration and continuous learning, offering competitive benefits such as annual leave and private healthcare. #J-18808-Ljbffr ...

scale-up in the UK. We seek an Engineering Lead to guide small squads (up to 4 engineers) while staying hands-on across React, Node.js/TypeScript, and GCP/AWS. You’ll help shape scalable features and mentor engineers as the product expands. The role is remote-first ...