1 to 25 of 83 React Jobs in the City of London

priorities in a fast-paced environment Technical Skills Power Platform (Power Apps, Power Automate, Power Pages, Power BI) Python, JavaScript, TypeScript, Angular or React ASP.NET Core, Entity Framework, REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL databases, vector databases FastAPI and AI service integrations (OpenAI, Claude, Gemini) Docker, Kubernetes ...

frontend and backend), and who cover the following skills and experience. Strong experience designing and building scalable full-stack web applications using TypeScript/React and C#/.NET (or equivalent technologies). Deep understanding of core software engineering principles, including design patterns, modular architecture, and maintainable, testable code. Proven ...

Specification – Senior Full-Stack Developer Job Title Senior Full-Stack Developer (React & TypeScript/Node or C#/.NET) Location Hybrid/Remote (UK) Contract Type Permanent Overview We are seeking an experienced and hands-on Senior Full-Stack Developer to join a greenfield digital transformation programme. The successful candidate … develop, and maintain scalable full-stack applications. Lead technical design decisions and contribute to overall solution architecture. Build responsive and accessible user interfaces using React (preferred), Vue, or Angular. Develop robust APIs and backend services using either: TypeScript and Node.js, or C# and .NET Design and optimise database schemas, queries ...

Sitecore, Optimizely, Umbraco, Alterian, Immediacy, Ektron, Kentico, Sitefinity or dotnetnuke. Our client can provide you with industry recognised training in: .NET 10.0, 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 MongoDB. This ...

proactive, solution-oriented mindset Strong technical expertise across: Microsoft Azure & Fabric .NET/C# SQL & APIs PowerShell Docker, Jenkins, Terraform, and Azure DevOps React, ASP.NET, and Angular Jira and Confluence What We’re Looking For The successful candidate will combine strong technical engineering capability with a deep understanding of investment ...

tooling and practices across the engineering function Requirements as Lead Software Engineer: Strong engineering background in Python Frontend exposure - ideally in Angular but React/Vue or related frameworks is also ok Expertise designing and building systems with performance and scalability in mind Familiarity with Gen AI frameworks such ...

domain modelling, integration patterns, and performance considerations. Experience with Entity Framework Core code-first migrations and data modelling. Strong front-end engineering skills in React and TypeScript, including component architecture, state management, and integration with REST/SignalR backends. Solid understanding of event-driven architectures. Hands-on experience with PostgreSQL ...

/CD environments Strong stakeholder communication skills across front office teams Beneficial Experience with MarketAxess, Tradeweb or Bloomberg Exposure to AWS or cloud environments React or TypeScript front end development experience Knowledge of risk analytics, RFQ automation or market data platforms This is an excellent opportunity to join a high ...

roles Proven track record deploying AI/ML or data-intensive applications in production Strong full-stack skills: Python, Node.js/Go, React/Vue, SQL, REST/GraphQL DevOps proficiency: Docker, Kubernetes, CI/CD, and major cloud platforms Expertise in LLMs, Prompt Engineering, Vector DBs, RAG pipelines ...

junior engineers What we're looking for The highest level of proficiency using most of the following: Frontend: TypeScript, Astro and/or Next.js, React, HTML, CSS Backend: Node.js, Go, RESTful APIs, OpenAPI Cloud: AWS, Lambda, DynamoDB, S3, CloudFront Infrastructure as Code: SST, Terraform, CDK, Pulumi or similar Testing: integration ...

tools, processes, and best practices to support team knowledge and future development. Expertise Proficiency in one of Python, Javascript, Golang or Rust Familiarity with React (or similar frameworks) for creating user-friendly web applications. Expertise in API design, data modeling, and distributed architectures Proficiency with CI/CD pipelines, containerization ...

frontend systems into a new bespoke solution incorporating an API currently being developed in Python (FastAPI with PostgreSQL) and a web-app frontend in React.js or similar. WHAT YOU’LL DO ● Lead the CMS architecture, the heart of the creation and distribution of our assets and data. In collaboration with ...

odds on sports events globally. An ideal Software Engineer will have experience developing with: C# .Net SQL AWS Modern frontend framework e.g. Angular or React This is a fantastic opportunity for a Software Engineer: Hybrid policy working from home 2 days a week Supportive culture with regular and full breaks ...

have expertise with C# .Net, ASP.Net development You have a strong knowledge of databases (SQL or Oracle) You're comfortable with JavaScript/React You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms You are collaborative with excellent communication and stakeholder management ...

C#, Java, Python, etc.) Deep understanding of algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Familiarity with React, Angular, or Vue (and how they interact with the DOM) Ability to reason about performance, memory usage, and rendering behaviour High standards for code quality ...

rapidly scaling product What We're Looking For Strong experience building and maintaining production web applications Expertise with a modern frontend framework such as React, Vue or Angular Experience designing and building APIs and backend services Proven ability to own projects from concept through to delivery A pragmatic engineering mindset ...

requirements, think about the customer, and understand the bigger picture Contribute to architecture decisions as the team and platform scale Stack: Java, GoLang, Python - React, TypeScript, Next.js - Terraform, GCP, GitHub Actions. AI? YES - They're shipping LLM-powered products 👉 Exact tech match less important than strong backend fundamentals ...

bring solid full‐stack engineering experience (not purely front end or back end), working across the full development lifecycle. Your core technology experience includes React, Node.js, Python, and Java. You have hands‐on cloud experience, designing and delivering solutions on AWS and/or Azure. AI experience is essential ...

perspective, this is a genuine full stack position, with work split across frontend and backend development. The business uses TypeScript throughout their stack, including React, React Native, Node.js and AWS, so experience across multiple areas of the stack is important. The package Alongside a salary ...

ownership of features and systems, from design through to production Comfortable working across the stack, including frontend development with TypeScript and React Thrive in early-stage. fast-paced environments High ownership mindset with strong problem-solving skills Bonus Points Early-stage start-up experience Experience building or working with ...

Title : Senior Product Engineer Industry : FinTech Stage : Series A, Rapidly growing Office : London 3 days a week. Salary : £80-110k + Equity TypeScript, React, Next.js, Node.js, PostgreSQL Most software makes existing processes slightly better. This team is rebuilding critical infrastructure from the ground up. They're solving complex problems ...

challenge them, shape them, and make sure what gets built is actually the most impactful version of every feature. Stack: JavaScript, NestJS, Kotlin, React, PostgreSQL, MongoDB, AWS, Docker, Terraform, CI/CD What they're looking for: 3–6 years as a full stack or product engineer. Strong opinions ...

Strong commercial Kotlin experience for backend development, ideally within payments or financial services Domain expertise in payment gateway systems or payments infrastructure Comfortable with React.js for full stack contribution where required Proven ability to take requirements through to architecture, design, and delivery Senior Software Engineer level ownership of technical decisions ...

Knowledge of financial markets or trading systems. Knowledge of FCA Market Abuse Regulation. Experience with performance optimisation and profiling. Familiarity with modern UI frameworks (React, TypeScript) and design principles. Exposure to containerisation and orchestration tools. Understanding of architectural frameworks and best practices. Knowledge of AWS or other cloud platforms. Role ...

engineering practices. Key Skills: AI & GenAI: LLMs, RAG, Agents, LangChain, LangGraph, CrewAI, Vercel AI SDK, OpenAI, Anthropic, Mistral, Llama. Full Stack Engineering: Python, TypeScript, React, APIs, Microservices, FastAPI. Cloud & DevOps: AWS/Azure, Docker, Kubernetes, Terraform, CI/CD. Data & Vector Search: PostgreSQL, MongoDB, Pinecone, Qdrant, ChromaDB, PGVector. Observability & Tooling … experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript ...