151 to 175 of 319 React Jobs in Central London

within large, enterprise-scale codebases. ● Solid proficiency in Java (deep server-side development and platform architecture familiarity). ● Strong experience with JavaScript, TypeScript and React (front-end development, with an interest in UX/UI principles). ● Expertise in SQL and designing/optimising relational database schemas. ● We seek deep … following or similar technologies and concepts is highly valuable: ● Backend: Java, Spring, Hibernate, multi-threading/concurrency, Quarkus/Micronaut. ● Frontend: JavaScript, TypeScript, React, D3.js, SVG, CSS. ● Database: SQL (SQL Server, MySQL, Oracle), Data Modelling. ● Infrastructure: Cloud Platforms (Azure, AWS), Git. ● Advanced Topics: AI/LLM (Large Language Models), Small ...

Location: London, Mayfair (hybrid, 3 days from office and 2 days from home) Employment Type: Full-time Tech Stack: React, TypeScript, Node.js, SQL Server,CI/CD, GraphQL/REST About the Role We’re looking for a hands-on Software Engineering Lead to help shape the future … This is not a purely managerial role — you’ll be expected to design, build, and iterate alongside your team, with a strong focus on React and modern frontend practices. Your work will directly impact operations across tenancy management, student engagement, maintenance scheduling, finance workflows, and more. Key Responsibilities Lead from ...

Hybrid) Salary : £100k–140k Equity : 1–3% (founding-level) Hybrid working: Central London, 3 days p/week in office. Tech Stack: TypeScript, Node.js, React, Python, LangChain, OpenAI/Anthropic I’m working with a YC-backed startup that’s building the next generation of AI-native analytics . This ...

Hybrid) Salary : £100k–140k Equity : 1–3% (founding-level) Hybrid working: Central London, 3 days p/week in office. Tech Stack: TypeScript, Node.js, React, Python, LangChain, OpenAI/Anthropic I’m working with a YC-backed startup that’s building the next generation of AI-native analytics . This ...

traditional ML) Design and implement data strategies for AI development and training Requirements 4+ years' experience across Fullstack development (Python/Modern JavaScript (React, Vue or similar) Experience working with LLMs, Scientific tools Strong command of Python and relevant AI/ML frameworks Startup experience preferred Benefits Strong equity options ...

+ meaningful equity 🏙️ Location : London, flexible working arrangements, ideally 1/2 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 ...

with less than 10 heads, and they're now looking for a founding-level engineer to join the core London team. Tech stack: Frontend : React, Next.js, TypeScript Backend : Python, FastAPI Happy for candidates to lean towards to backend or the frontend Why this role stands out: Stealth-stage, high-impact ...

Outside IR35 | 12-months Contract Length Senior-level backend experience with Python and Django in production systems Proven work with JavaScript and React (production experience strongly preferred) Familiarity with MySQL Databases and scale Strong grasp of APIs, cloud-native systems, and scalable architecture Freelance mindset: able to hit the ground ...

Outside IR35 | 12-months Contract Length Senior-level backend experience with Python and Django in production systems Proven work with JavaScript and React (production experience strongly preferred) Familiarity with MySQL Databases and scale Strong grasp of APIs, cloud-native systems, and scalable architecture Freelance mindset: able to hit the ground ...

/data environments. Expertise in Tableau and/or PowerBI for rapid prototyping and stakeholder engagement Deep hands-on experience with modern frontend frameworks (React, Typescript, etc) Hands-on experience with cloud platforms (AWS preferred); familiarity with scalable deployment and integration Strong knowledge of API integration. Proven experience in developing ...

modern web technologies ·Make foundational technical decisions that shape the company’s trajectory Tech you’ll work with ·Python, LLMs, vector databases, knowledge graphs ·React/TypeScript, Supabase, AWS ·Agent frameworks (e.g., LangChain, LangGraph) What they are looking for · Ownership mindset: You think like a founder and execute without waiting ...

into insights and recommendations using AI/ML tooling Tackle technical debt and improve system robustness as we scale rapidly Tech Stack Node.js - NextJS React TypeScript Google Cloud Platform PostgreSQL, BigQuery If you’re looking for a role where you can build meaningful software, shape product direction, and work ...

/data environments. · Expertise in Tableau and/or PowerBI for rapid prototyping and stakeholder engagement · Deep hands-on experience with modern frontend frameworks (React, Typescript, etc) · Hands-on experience with cloud platforms (AWS preferred); familiarity with scalable deployment and integration · Strong knowledge of API integration. · Proven experience in developing ...

Location: London (hybrid) Salary: Up to £100,000 ( 10% DOE) + equity Tech Stack Python ecosystem - experience with Django, or Flask, or FastAPI TypeScript & React across the frontend - any frontend experience beneficial Cloud native environment This is not a “slot into an existing team” role. This is a build ...

platform reliability and user trust partnered closely with product and data teams and established a strong engineering culture. Technical Stack Experience Includes: Python Typescript React AI Fast API's Apply direct or email bradley.stott@wearenumi.com ...

Python to create robust, scalable server-side logic. Implement responsive and visually appealing front-end designs using HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue. Design and manage API integrations, ensuring seamless data flow between different software components. Work with SQL and NoSQL databases to store … proficiency in Java and Python. Hands-on experience with API development and integration. Solid understanding of HTML, CSS, JavaScript, and modern front-end frameworks (React, Angular, or Vue). Experience with databases (SQL and NoSQL). Familiarity with version control systems (Git). Knowledge of cloud platforms (AWS, Azure ...

.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. ...

Full Stack Engineer | .NET & React | Financial Services | London We’re partnered with a leading global energy and commodities organisation that’s investing heavily in its digital transformation journey. With a strong presence across EMEA, the Americas, and APAC, the business is scaling its in-house analytics platforms to drive smarter … data-led decisions across trading, logistics, and infrastructure operations. The role: As a Full Stack Developer , with proven skills in . NET and React , you’ll join a highly collaborative analytics team in London, helping to design and deliver scalable, high-impact applications that harness data from global operations. ...

Title: Senior Product Engineer Location: Hybrid – 3 days/week in Central London office Salary: Up to £150k + Equity Tech Stack: Go, TypeScript, React (open to other strong technical backgrounds) ✅ What They’re Looking For Engineers who think like product owners Prior startup success or fast-paced environment experience ...

market-making Strong understanding of FX microstructure , order management, or regulatory flows Bonus experience: Spring Boot, Gradle, Solace, FIX, concurrent programming, JVM tuning, React/Vue Ability to utilise AI coding assistants effectively while maintaining code quality Strong communicator with the ability to influence technical and business stakeholders Degree ...

role in the company's growth plans for 2026+ Hands-On Engineering (50%) Contribute directly to the codebase, primarily across Django, AWS, React/Vue Lead architectural decision-making and system design Solve complex technical challenges and drive high-performance engineering Maintain high quality through code reviews and technical guidance ...

Actively experiment with and refine AI-assisted development workflows Have built LLM-powered systems or AI agents in production environments Tech Stack TypeScript monorepo React, tRPC, Tailwind Event-driven workflows and background jobs Deployed on Google Cloud Platform Postgres What’s On Offer £100,000 – £150,000 base salary (depending ...

Senior React Engineer - £120,000 - £140,000 – On-site (Central London) Overview We are hiring a Senior React Engineer to join a high-performance technology team within a leading financial services organisation operating in the oil and energy derivatives space. The business runs a cutting-edge electronic trading platform that … also be a collaborative team player who communicates clearly and contributes to a high-quality engineering culture. Role & Responsibilities Design, build, and maintain a React/TypeScript trading UI, delivering real-time streaming data and a seamless user experience Integrate the UI with RESTful and streaming APIs (built in Rust ...

sides and define how the application looks and how it works. Responsibilities: •7-9 years of experience in Developing and implementing UI components using React.js •Collaborating with cross-functional teams to design and ship new features •Building reusable components and front-end libraries for future use •Translating designs and wireframes … code reviews to maintain code quality and consistency Qualifications & Skills: •A degree in computer science, software engineering, or a related field •Proficiency in React.js and its core principles •Strong JavaScript, TypeScript HTML5, and CSS3 skills •Experience with popular React.js workflows (such as Redux) •Familiarity with RESTful APIs and integration •Knowledge ...

risk. Key Responsibilities: Design, develop, and maintain full-stack software using Python Build and integrate frontend components using HTML, CSS, and frameworks such as React or Angular Work with relational databases and data-driven applications Collaborate closely with data science and DevOps colleagues Deliver core MVP functionality in fortnightly Agile … practices Produce clear documentation throughout the SDLC Essential Skills & Experience: Expert-level Python development experience Strong full-stack capability, including HTML/CSS and React or Angular Expert understanding of the relational data model and databases Proven experience delivering software using Agile methodologies Experience with containerisation (e.g. Docker) Ability ...