26 to 50 of 89 React Jobs in the City of London

Strong experience building modern full-stack applications (JS/TS/Node or similar) Deep knowledge of at least one modern frontend framework ( React, Vue, Next.js ) Experience designing and delivering scalable, cloud-based systems (AWS, Azure or GCP) Strong understanding of API design (REST/GraphQL), databases and system architecture ...

round , with significant upside potential as the business scales toward Series A and beyond. Core requirements: 3 plus years of engineering experience Strong in React and comfortable across the full JavaScript and TypeScript stack Backend experience building REST APIs using NestJS or Express Or Python Experience with MongoDB or similar ...

workflows across messy company systems Turn ambiguous business problems into clear technical components that can be automated Work across Ruby, Python, Rust, TypeScript, and React depending on the problem Ship production features that affect revenue, retention, and operational efficiency Improve reliability, scalability, and developer speed as the platform expands Collaborate ...

academic group Experience with production machine learning or LLM-based systems Exposure to enterprise data platforms or similar tools Frontend development experience (e.g., React) Familiarity with distributed computing frameworks (e.g., Spark) What’s on Offer Competitive compensation package, including equity Comprehensive benefits Hybrid working model Opportunity to build products ...

offer. ABOUT THE ROLE Tech Stack Backend : AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend : React/Next.js, React Native Programming Languages : TypeScript; JavaScript, Python Infrastructure : Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. … product planning meetings and provide technical input to guide the team's priorities. Design, develop, and maintain full-stack applications using Node.js, AWS Lambda, React with Next.js, TypeScript, and Terraform. Write clean, efficient, and well-tested code that adheres to best practices and coding standards. Ensure code quality, organisation ...

scale systems end-to-end, not those with superficial exposure or purely design-focused experience. Candidates must have strong experience of Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development (REST/ ...

aerospace, defense, or other high-performance engineering organizations is advantageous. Experience building frontend-heavy SaaS applications with strong attention to UX. Familiarity with TypeScript, React, Postgres, and AWS. Strong generalist mindset with the ability to work across the stack and operate independently in high-autonomy environments. ...

services/regulated environments Exposure to reconciliation, accounting, or control processes Experience with workflow orchestration tools or internal platforms Frontend/tooling exposure (e.g. React/TypeScript) Why Join? Opportunity to build a greenfield AI platform with real business impact Work at the intersection of AI, automation, and complex financial ...

thrive on learning new technologies and don’t believe in one-size-fits-all solutions. That being said, you can expect to work with React, TypeScript, NextJS, Styled Components You have experience with AI-assisted development tools like Cursor to enhance productivity and streamline coding workflow. You have experience interacting ...

Banking client is seeking to recruit a Senior Full Stack Developer (React & .NET Core) on an initial 6 month based in London. It is hybrid and will require 3x days onsite per week. About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise … React JS on the front-end and C# .NET Core on the backend. The ideal candidate will have substantial hands-on experience developing scalable applications, strong exposure to cloud-native architectures, with experience in the financial sector. Experience with CI/CD , microservices , and event-driven architectures is essential ...

Full Stack Developer (Fully Remote) – React, Node.js Location: Fully remote (London-based) Salary: £55,000 - £65,000 Step into a pivotal Full Stack Developer role where your React expertise will shape the digital experience for global sports communities. Lead the charge in building sleek, high-performance UIs and robust APIs … moving team, drive innovation, and see your work impact millions of users worldwide. Key Responsibilities Architect and deliver end-to-end features across modern React front ends and Node.js back ends Collaborate with product, UX, and engineering teams in an agile environment Champion best practices in code quality, performance ...

Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year in industry. ...

development, and confidence in a product-focused environment. Comfort with distributed systems and B2B integrations is a must. Desired Skills ⚙️ Ruby on Rails TypeScript React or Vue.js AWS They are willing to move quickly with this role, please apply now if interested. Senior Ruby Developer - Leading Health Tech - Hybrid ...

technical stakeholders Preferred Qualifications Additional experience with Foundry, AIP, and PySpark Knowledge of monitoring, alerting, and logging tools and frameworks Exposure to TypeScript/React for Workshop applications and workflow orchestration Experience working within the insurance domain Experience Requirements 5+ years of experience in Data Engineering, with demonstrable experience ...

with any of the following would be valuable: * E-commerce, fintech, payments, identity, verification, workflow systems, SaaS platforms, operational tooling, or transaction-heavy products * React/Next.js/TypeScript * Node.js, Python, Go, or similar backend stacks * PostgreSQL or similar relational databases * Cloud deployment, CI/CD, observability, and production operations ...

ALERT 🚨 – Senior Electronic FX UI Specialist 💻 React/TypeScript/FX Trading UI – Front Office Platform 🕑 Strong experience building high-performance, real-time trading applications 📍 London (collaborative, front office, low-latency environment) 💰 Highly competitive SVP base + bonus Highlights: 🔷 Build and evolve modern frontend trading applications supporting FX market making ...

Engineers to their team. The team are open to hiring pure backend engineers, or full-stack engineers. Their technical stack is Rust , Typescript and React on the frontend. They do not require any experience in any of these technologies , the team hire on pure technical acumen rather than years ...

+ meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 2/3 days in office 💻 Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite engineering team within the AI space. The platform is being used across the globe ...

support high-end, high-value clients Good exposure to UI development with scripting skills – JavaScript Tech tools & skills such as CSS, Angular, Ajax, or React would be very useful SQL skills are also needed The Role This Support Engineering role will require you to liaise with technical counterparts in major ...

SharePoint. Strong knowledge of programming language with expertise in web development. Experience with client-side and front-end frameworks such as jQuery, Bootstrap, React, and Angular. ...

Experience taking LLM or agent-based systems into production – Strong understanding of system design: orchestration, memory, deployment, monitoring – Exposure to tools such as LangGraph, ReAct, CoT — or building similar systems from scratch – Familiar with PyTorch/TensorFlow, RAG architectures, vector databases, modern cloud infra – Experience in startup or consulting environments ...

pipelines What You'll Work With Python backend services LLM orchestration layers Vector databases (Pinecone, pgvector or similar) API integrations (CRMs, property systems) TypeScript React Next.js Nice to Haves Voice and telephony systems (Twilio, SIP, WebRTC) STT/TTS pipelines (Deepgram, ElevenLabs or similar) Messaging integrations (WhatsApp Business API) Observability ...

enjoys creating, testing, and improving things Comfortable working in a more entrepreneurial, less structured environment Strong academic background preferred Useful experience may include: FastAPI, React, TypeScript, Streamlit, APIs LLMs, RAG, agentic workflows, automation tools Internal tools, dashboards, workflow systems, CRM-type platforms AI-enabled process improvement or business automation This ...

measured on your impact Low ego and self-critical, open to feedback Give honest feedback directly and kindly Preferred Skills A TypeScript monorepo, React, tRPC and Tailwind Inngest for background jobs and event-driven workflows Deployed on Google Cloud Platform with Postgres Pay range and compensation package ...

.NET Developer, C# 14 - Global Technology Brand - London (Tech stack: .NET Developer, .NET 10.0, ASP.NET, C# 14, WPF, React, Angular 21, Microservices, Azure, ASP.NET Core Web API, Entity Framework, Agile, Programmer, Full Stack Engineer, Architect, .NET Developer) Our clients fascinating story dates back to 1981; today they have fast become … development (.NET Core, C#) or winforms/WPF (C#) development. Our client will provide you with training into: .NET 10.0, WPF, MVVM, Prism, JavaScript, React, Angular 21, Microservices, MongoDB, Vue.js, TypeScript, Azure, AWS, ASP.NET Core Web API, Entity Framework, Node.js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and Azure SQL. ...