1 to 25 of 88 React Jobs in the City of London

Senior Software Engineer

Hiring Organisation
JSS
Location
City of London, London, United Kingdom
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 ...

Senior C# .NET Front Office Developer | Pricing & Risk Analytics | £150k | Front Office

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
Technical Bar Core Languages: Expert in C#/.NET paired with a strong proficiency in Python. Full-Stack Visualization: Hands-on experience with React, TypeScript, and JavaScript for front-end development. Domain Depth: A solid understanding of derivative products and risk sensitivities (Greeks). Cloud & DevOps: Experience with AWS, Terraform ...

.NET Developer, CMS, Sitecore, EpiServer, Umbraco

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £75,000 per annum
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 ...

Senior Developer – Investment Management Technology

Hiring Organisation
Pharos Resource Partners
Location
City of London, London, United Kingdom
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 ...

🌳 🚀 Tech Lead (x5 Roles) – Go, PHP, OOP, AWS, APIs, Full Stack Engineering - Remote

Hiring Organisation
Areti Group | B Corp™
Location
City of London, London, United Kingdom
Cloud Platform 🌳 MySQL/PostgreSQL 🌳 Docker & Containerisation 🌳 CI/CD Pipelines 🌳 Git & Modern Development Practices Front-End Technologies 🌳 JavaScript/TypeScript 🌳 Vue.js, React or modern SPA frameworks 🌳 HTML5 🌳 CSS/Tailwind Bonus Experience 🌳 Event-Driven Architecture 🌳 Kafka, RabbitMQ or messaging systems 🌳 Kubernetes 🌳 Terraform/Infrastructure as Code 🌳 Distributed Systems 🌳 Domain ...

Shopify Full-Stack Developer

Hiring Organisation
PRACYVA
Location
City of London, London, United Kingdom
plus years of work experience in software development · Shopify platform experience a MUST. · Experience in Shopify Hydrogen framework built with React that allows developers to create custom, high-performance storefronts for Shopify, effectively using a headless approach is good to have · Must have experience in building end to end eCommerce ...

Lead Software Engineer

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
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 ...

Principal Technical Lead

Hiring Organisation
RSSB
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
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 ...

AWS Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
certifications such as Solutions Architect, Developer Associate, or DevOps Engineer are highly desirable Desirable Experience Any exposure to the following would be advantageous: React or modern front-end frameworks Java, Go, C#, Rust, or other strongly typed languages Internal platform engineering or developer platform ownership Event-driven architectures using EventBridge ...

Senior Staff Forward Deployed Engineer

Hiring Organisation
Uniphore
Location
City of London, London, United Kingdom
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 ...

🌳 Urgent! Fullstack Staff/Tech leads Needed – UK-based – Series A Funded Startup – Rapid Growth – Fully Remote 🌳

Hiring Organisation
Areti Group | B Corp™
Location
City of London, London, United Kingdom
Object-Oriented Design , and a passion for learning and embracing new tech. Languages : 🌳 Ruby-on-Rails, Java, Python, C# 🌳 VueJs, Typescript/Angular/React Cloud : 🌳 Amazon Web Services (AWS) Databases : 🌳 PostgreSQL, DynamoDB Additional Tools & Frameworks : 🌳 GraphQL 🌳 REST APIs 🌳 Software Design Patterns – TDD, DDD 🌳 Agile methodologies: Scrum and Kanban ...

Senior Full Stack Engineer

Hiring Organisation
Humanoid
Location
City of London, London, United Kingdom
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 ...

Full Stack Engineer

Hiring Organisation
Sing King
Location
City of London, London, United Kingdom
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 ...

Senior C# Developer C# .Net - Sports Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent
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 ...

Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
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 ...

Senior Software Engineer

Hiring Organisation
Plan:it
Location
City of London, London, United Kingdom
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 ...

Sales Engineer

Hiring Organisation
Tiptap
Location
City of London, London, United Kingdom
Qualifications - You're proficient in JavaScript/TypeScript and can write clean code and prototype customer-facing applications quickly. - You've got hands-on React and Node.js experience across frontend and backend. Enough to build a convincing live demo, debug a prospect's integration on a call, and answer technical ...

Senior Frontend Developer

Hiring Organisation
Pentasia
Location
City of London, London, United Kingdom
senior engineering role with ownership of complex systems. - Strong expertise in front-end technologies (JavaScript/TypeScript frameworks) or another core area such as React - Ability to work beyond a single specialization (T-shaped skillset) — preferred but not strictly mandatory. - Experience integrating front-end applications with APIs and backend services. ...

Senior Engineer

Hiring Organisation
Formula
Location
City of London, London, United Kingdom
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 ...

Principal Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
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 ...

Product-Focused Full Stack Engineer (Python, Django) | Go, GraphQL, Flutter | High Ownership, End to end | AI Infrastructure Scale-Up | £60-120k + Equity | London Hybrid

Hiring Organisation
Owen Thomas | B Corp™
Location
City of London, London, United Kingdom
experience with Python (Django or similar frameworks) Exposure to Go or willingness to work with it Experience building or contributing to frontend applications (Flutter, React, or similar) Solid understanding of APIs, distributed systems, and scalable architecture Ability to ship quickly while maintaining clean, pragmatic code Strong communication skills and experience ...

Software Engineer (AI+Fullstack)

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£55,000
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 ...

Full Stack C# .NET Developer | Core Trading Systems | Kafka | Financial Services | Hybrid, London

Hiring Organisation
VirtueTech Recruitment Group
Location
City of London, London, United Kingdom
with product owners, architects and business stakeholders to deliver C# .NET solutions that directly impact trading operations. Role Details 💻 Tech Stack: C# | .NET | Kafka | React | AWS | Terraform | Docker 🏢 Hybrid working | London As a Full Stack C# .NET Developer, you will: Design and build high-quality C# .NET solutions within … proven .NET Core/.NET 5+ expertise Experience building RESTful C# .NET APIs and microservices in enterprise or trading environments Good working knowledge of React and modern front-end development principles Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway) Hands-on experience with ...

Lead Full-Stack Web Developer - Hedge Fund

Hiring Organisation
Vertus Partners
Location
City of London, London, United Kingdom
involved throughout the entire software lifecycle; design, deployments and continuous improvement whilst leading a small global team. Requirements: -Strong experience with Vue.js/React for frontend development -Python knowledge for backend services -Experience with security protocols -Understanding of the AWS stack -Lead experience is ideal - direct reports/mentoring This ...

Senior Software Engineer

Hiring Organisation
Unity Talent Solutions
Location
City of London, London, United Kingdom
ForProven experience in a senior engineering role with some leadership expo sure5+ years experience with Python is essen tialHands-on technical skills across, TypeScript, React, AWS, and De vOpsPragmatic approach to balancing speed, quality, and technical debtOwnership mindset, comfortable with ambiguity and end-to-end responsibi lityStrong communicator ...