76 to 100 of 102 React Jobs in the City of London

Junior .NET Developer

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£25,000 - £35,000 per annum
Junior .NET Developer - Online Film Rental Company - London (Tech stack: Junior .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI, Programmer, Full Stack Engineer, Architect, Junior .NET Developer) In just over 5 years our client has established themselves … following (full training will be provided to fill any gaps in your skill set): .NET 10.0, C# 14, Azure DevOps, Agile, Blazor, JavaScript, React, Multithreading, RESTful, ML.NET, Azure AI and MongoDB. This is an excellent opportunity for a Junior .NET Developer to working within a challenging supportive environment. Top performers ...

Sharepoint Developer (SC CLEARED)

Hiring Organisation
Cpl
Location
City of London, London, United Kingdom
Online and Records Management . Key Responsibilities Develop and customise modern SharePoint Online sites, pages, lists, libraries, and components Build custom solutions using SPFx, React, TypeScript, JavaScript, HTML, and CSS Design and deliver business applications and workflow automation using Power Apps and Power Automate Implement Microsoft Purview Records Management , including … support Required Skills & Experience Strong hands-on experience with SharePoint Online development and configuration Proven experience with SPFx and modern front-end frameworks (React, TypeScript, JavaScript) Hands-on delivery using Power Apps and Power Automate Experience implementing Microsoft Purview Records Management , including retention labels, schedules, disposition review, and sensitivity labels ...

Backend Software Engineer Java - Futures Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
building a brand new Futures Trading platform for the UK, primarily using Java with a focus on backend development but also with some React UI work. You'll be working on complex and challenging, highly available mission critical systems in collaboration with Product Managers to understand and define new features … skills including Spring, Spring Boot, microservices You have a good knowledge of AWS You also have an appreciation of UI development with TypeScript/React You take in pride in producing clean, high quality code You're familiar with modern software engineering tools such as Kafka, Kubernetes, MongoDB ...

Full Stack Engineer

Hiring Organisation
Hera
Location
City of London, London, United Kingdom
trust, clarity and psychological safety Take ownership of event-driven architecture using Node.js, TypeScript, DynamoDB and AWS Lambda, and build frontend applications in React/TypeScript Shape reusable software components across the stack and deliver major features from concept through to launch Access £1,200 annual learning budget, enhanced parental … patterns that scale across the platform Build event-driven applications using AWS Lambda and AWS API Gateway Contribute to modern frontend development (e.g., React or similar), ensuring great UX and accessibility Deliver major features from concept through to launch, taking ownership end-to-end Perform thorough code reviews, providing constructive ...

Senior Software Engineer

Hiring Organisation
Maxwell Bond
Location
City of London, London, United Kingdom
Senior Software Engineer Location: London - Hybrid Salary: £70,000-85,000 Tech stack: Typescript & Node.js Maxwell Bond have partnered with a leading SaaS business who are looking for a Senior Software Engineer, with a focus ...

Lead Software Engineer (Python)

Hiring Organisation
Circuit Mind
Location
City of London, London, United Kingdom
About Circuit Mind Electronic circuit boards are at the core of current and future inventions - space travel, medical robotics, autonomous transportation, augmented reality, bio-engineering. Yet today designing an electronic circuit board is an extremely ...

Junior Fullstack Engineer

Hiring Organisation
Medly AI
Location
City of London, London, United Kingdom
mobile products. You will play a pivotal role in high-impact projects across our entire stack, from crafting polished user interfaces in Next.js and React Native to building robust backend services in Python. This is a high-impact opportunity for someone eager to learn fast, take ownership, solve real problems … help power the next generation of educational technology. Role Responsibilities Build and maintain features across our web app (Next.js) and mobile app (React Native) Contribute to our Python backend and help improve API performance Collaborate on database design and write efficient queries in Postgres Work with AWS services to deploy ...

Mobile Engineer (React Native)

Hiring Organisation
Needl
Location
City of London, London, United Kingdom
resilient—especially for customers who are underserved by traditional banking. This is a full-time, onsite role in London (Shoreditch) . As a React Native Mobile Engineer , you’ll lead the development of key mobile experiences end-to-end—from crafting high-quality, performant interfaces to integrating with backend APIs … closely with product, design, and engineering leadership to ship features that users rely on for sensitive, high-trust financial workflows. Who You Are Strong React Native engineer: You build polished, reliable mobile experiences and care about performance and UX details. TypeScript-first: Confident shipping production apps using TypeScript and modern ...

Software Engineer

Hiring Organisation
Bounce Digital
Location
City of London, London, United Kingdom
Engineer (Fullstack) Salary/Package: £90k-£140k + Equity Options Company Sector: AI Start Up Experience Level: Senior (5+ years) Tech: JavaScript, TypeScript, Node.js, React.js, AWS Location: Central London Working Arrangement: 5 days a week in the office (flex hours) Product Engineer (Full Stack) Help shape the future of human … product leads to craft elegant, high-impact solutions What you bring Strong experience building full-stack web applications Proficiency with TypeScript, Node.js, and React (experience with tools like Tailwind, Radix, or Framer Motion is a plus) Solid understanding of Postgres or similar relational databases Exposure to cloud infrastructure ...

Senior Full Stack Engineer

Hiring Organisation
Curated
Location
City of London, London, United Kingdom
Senior Full Stack Engineer - React, Typescript, Python, Java London, UK Permanent | Hybrid | 3 Days PW £90,000 to £120,000 Curated are partnered with a high growth B2B SaaS organisation undergoing a major evolution towards more intelligent, automated and AI enabled product experiences. Already highly successful and generating over … about building great products that make intelligent use of modern tooling and automation. What you’ll build → Develop high quality frontend applications using React and TypeScript → Design and implement scalable UI architecture with performance and usability in mind → Contribute to backend services across a modern cloud based stack → Collaborate closely ...

Securities Services Analytics Developer

Hiring Organisation
Robert Walters
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Robert Walters Consultancy. Your first assignment will be at JPMorgan Chase, in London. For this role, we are seeking candidates with Python and React/TypeScript experience, using tools such as AWS, CI/CD pipelines, and exposure to Athena being a strong plus. What You'll Do Develop, design … Formal software engineering training or certification with 3+ years of experience. Strong analytical and development skills with computer science fundamentals. Proficiency in Python and React/TypeScript. Experience developing, debugging, and maintaining code in large corporate environments. Knowledge of the software development life cycle and agile practices (CI/ ...

Security Engineer

Hiring Organisation
Chapter 2
Location
City of London, London, United Kingdom
Security Engineer Confidential | AI Startup (Series A, Venture Funded) | London (Hybrid) We are a London and New York based, Series A artificial intelligence startup with $25m in funding from venture capital funds across San Francisco ...

Software Engineer

Hiring Organisation
PRODA LTD
Location
City of London, London, United Kingdom
About PRODA At PRODA (www.proda.ai) we are building software to unlock the full potential of Real Estate Data no matter the asset class, language, or country of origin. Our solution leverages the latest technologies to ...

Frontend Developer

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
Front-End Engineer (React) | London | Hybrid | £60-80k About the Company Albert Bow is recruiting on behalf of our client, a fast-growing tech startup building modern tools to simplify complex business workflows. Startup experience is highly valued. About the Role We are looking for a Front-End React … power critical workflows. You’ll be part of a small, fast-moving team shaping the product from the ground up. Responsibilities Develop and maintain React web applications Collaborate with designers and backend engineers to deliver seamless user experiences Optimize applications for performance and scalability Contribute to product design and technical ...

Senior Software Engineer

Hiring Organisation
Burns Sheehan
Location
City of London, London, United Kingdom
build product features across the full stack using TypeScript Develop backend services and real-time APIs using Node.js Build and maintain frontend applications using React Work closely with product and design on problem discovery and solution design Contribute to architectural decisions as the platform scales Help evolve a zero … experience as a software engineer, ideally in a startup or scale-up Strong experience with TypeScript across frontend and backend Hands-on experience with React and Node.js Comfortable working on early-stage, ambiguous, zero-to-one problems Product-focused mindset with experience working close to users Based in or able ...

Pricing Services & Risk Viewer Senior Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
department with a global leading internation bank. This senior software development position requires a candidate with outstanding skills in C# and TypeScript/React, and a robust understanding of pricing models and risk analytics for both vanilla and exotic FX derivatives. The role involves close collaboration with business analysts, traders … development practices. Required Skills & Qualifications: A degree in an IT-related subject with substantial experience in software development. Highly experienced in C#, TypeScript/React, and Quant Library integration. Solid understanding of mathematics as applied to derivatives risk and pricing. Excellent written and verbal communication skills in English. Experience working ...

FullStack Engineer

Hiring Organisation
Bloc Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Founding Software Engineer x3 (Python, NodeJS, TypeScript, React) Salary up to £110k + Equity London - 1 Day a week Sponsorship available for UK based candidates We're looking for a Senior Software Engineer to join a founding engineering team and help scale a fast-growing platform serving an expanding enterprise … ownership What You Bring 4+ years of experience as a full-stack software engineer Strong experience building B2B SaaS products Proficiency with: Frontend: React, TypeScript Backend: Node.js and/or Python Experience building data pipelines, ETL processes, and analytics systems Prior startup experience you understand velocity, trade-offs, and building ...

Senior Engineer

Hiring Organisation
Bloc Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Senior Engineer (Python, TypeScript, React) Salary £100k + Options London - 3 Days a week Company Building infrastructure that enables proactive, preventative healthcare at national scale. Today, most healthcare systems are reactive acting only once patients are already unwell. This platform changes that, by helping primary care teams identify risk earlier … requirements and solve real user problems Communicate clearly with stakeholders and keep delivery aligned with impact Technical Experience Strong experience with Python , TypeScript , and React Comfortable working in cloud environments (AWS preferred) Familiar with modern DevOps practices and production systems 3+ years of recent experience in relevant technologies Bonus: Experience ...

Senior Platform Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
into buildable tech projects. Prototype at pace in Python—leveraging LLM co-pilots—to stand-up analytics services, REST APIs and lightweight Dash/React front-ends. Own the full stack: data ingestion (SQL, files, feeds), business logic, web/UI, CI pipelines and Linux deployment. Codify best practice … exposure to REST and messaging (Rabbit, Kafka, etc.), and enough Linux to troubleshoot on the command line. UI chops in Dash, Flask or React to whip up proof-of-concept dashboards. Solid grounding in financial products & risk metrics —equities, bonds and derivatives; VaR, stress, PnL explain. Excellent communicator who never ...

Staff Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
City of London, London, United Kingdom
Senior Full Stack Engineer (AI) | London | £100k to £150k | React | Django | FastAPI Location: London Salary: £100,000-£150,000 + benefits This role is for Engineers who are intellectual and driven by deep complexity. This is about building tools that help people make sense of exceptionally complex systems. You will … competent as they are ambitious. What you will be doing Building and evolving full stack applications used by technical teams, using Django, FastAPI & React Creating interfaces that help users understand complex behaviour and data Working closely with others to shape how tools should work and feel Balancing speed, quality ...

Software Engineer - (£200,000 | AI Agents | Rust | Typescript | React)

Hiring Organisation
Paradigm Talent
Location
City of London, London, United Kingdom
Role: Software Engineer - AI Agents | Rust | Typescript | React Location: London, 4 days in office (Shoreditch) Salary: Up to £200,000 About the company We’re an early-stage technology company building a new AI-powered product focused on improving how organisations design, reason about, and operate complex models and workflows. … spanning backend services, APIs, and frontend user experiences. Work across Rust for performance-critical systems and TypeScript across the product stack. Build and maintain React-based user interfaces for complex, interactive workflows. Use modern AI-assisted development tools to improve speed and code quality. Design and optimise systems with ...

Engineering Lead

Hiring Organisation
Dex
Location
City of London, London, United Kingdom
Contribute across the stack, bringing to bear your high calibre technical expertise in either Backend (Typescript/Node.js/Go/GCP) or Frontend (React), to deliver features end-to-end to our customers. Recruit and develop a top-class team of engineers that own a critical area … Excellent knowledge of modern cloud architectures (either GCP or AWS). Demonstrable deep expertise with Node.js/Typescript or Go for backend development, or React for frontend development. Ability to communicate technical ideas to the wider team and influence decisions. A desire and aptitude for leading and growing a great ...

AI Engineer

Hiring Organisation
Solve Intelligence
Location
City of London, London, United Kingdom
implement cutting-edge prompting methods to maximize model efficacy. Full-Stack Impact: While focused on AI, you’ll work across the stack (Python, Postgres, React) to ensure our research translates into a seamless user experience. 💡 About Solve Intelligence We are the fastest-growing startup transforming the IP landscape. … pipelines into live environments. LLM Mastery: Practical experience with prompt engineering and modern LLM architectures. Technical Versatility: Familiarity with the full stack (Postgres, TypeScript, React). Clear Communication: Ability to articulate complex technical decisions clearly. Nice-to-Haves: Publications at top ML conferences (NeurIPS, ICLR, ICML). Familiarity with frameworks ...

Frontend Engineer

Hiring Organisation
Switch Tech Talent
Location
City of London, London, United Kingdom
Frontend Engineer (React) 💸 £75,000 - £85,000 + package incl. equity 📍London hub - hybrid working (2 days pw) 💻React, Next.js, Typescript, Postgres, Kafka, Vercel, AWS etc Does joining a near profitable AI start-up (B2B SaaS) already working with global leaders in SaaS to improve efficiency and revenue interest … scale up environment Experience working within a startup environment with autonomy Have previously worked with cloud native technologies at scale (ideally AWS) Technical Environment: React, Next.js, Typescript, Postgres, Kafka, Vercel, AWS etc. If you’re a Frontend Engineer looking for an opportunity to join a start ...

Full Stack Development (Ecom Viax Lead)

Hiring Organisation
Hellowork Consultants
Location
City of London, London, United Kingdom
Lead) Location : London, UK JD : · Experience in delivering ecommerce solutions. · Design and development experience in eCommerce. · 10+ years of full stack development expertise (Node.js, React.js, Lambda programming, GraphQL, Type Script, workflow) · Should have used and enabled AI across design, development and testing. · Experience in delivering ecommerce solutions. · Design and development … experience in eCommerce. · 10+ years of full stack development expertise (Node.js, React.js, Lambda programming, GraphQL, Type Script, workflow usage) · Functional knowledge about order orchestration – (order to cash) · Should have used and enabled AI across design, development and testing. · Functional understanding of middleware – (Kafka) · Experience in delivering ecommerce solutions. · Design ...