876 to 900 of 1,001 React Jobs in London

latest development frameworks and tools to create cutting edge applications. Their current stack is Node.js/Mongo DB on the back-end and React, Flux, Backbone, JQuery, SASS on the front. As a Node. JS Developer you MUST have: Solid experience with Node.jsJavaScript development experienceSQL or MongoDBSome experience of front … would be a plus (HTML5/CSS3/JQuery)React.js would be a plus but not necessaryIf you think this role is for you then please apply, note that my client will not consider contracts this is a permanent position. My client is based in BristolNode.js javascript, node, couchdb, mongodb ...

experimentation Optimising application performance, reliability and scalability Working closely with Product, Design and AI teams to solve real customer problems Tech Stack TypeScript React.js Node.js PostgreSQL AWS Terraform Tailwind CSS Framer Motion Radix UI An interest in AI and LLM-powered products is highly desirable, although previous AI experience … essential. You'll likely have experience with: Building full stack applications in modern JavaScript/TypeScript environments React and Node.js Cloud infrastructure (AWS) ostgreSQL or other relational databases Shipping products in fast-paced startup or product-led environments Collaborating closely with designers and product managers Taking ownership from idea through ...

Reference: BBBH3775_1776695707Azure Solution Architect (.NET/React/APIs)Salary: Up to 90,000 + Bonus + Benefits Location: Central London - Hybrid (2/3 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Azure … Solution Architect or Technical Architect Strong experience across Microsoft Azure and cloud-native architecture Strong knowledge of .NET/C# development environments Experience with React.js, Node.js and API-led architecture Understanding of graph databases such as Neo4j Strong knowledge of DevOps and CI/CD pipelines Experience setting quality gates ...

/KYB across corporate, fund, intermediaries and sub-accounts. You will be part of a team building a single page application that runs on React 18, TypeScript (strict), TanStack Query/Form/Router, Tailwind + a Radix/shadcn component system, Vitest + RTL + MSW. You make … sounds the alarm if we are attempting to build the wrong things. Key Responsibilities Design and build new features in a form-heavy, React single page application Thoroughly test everything you build to prove your software works Make architectural calls on your domain, record down, present and defend them ...

thrives in developer experience, SDK design, and security-focused frontend engineering.What You’ll be doing:Own and maintain a JavaScript SDK built with React and TypeScript, enabling secure integration with our custom Secure Token Service.Design intuitive, developer-friendly APIs that abstract complex authentication flows (OAuth2, OpenID Connect).Ensure … with frontend security best practices and contribute to platform-wide improvements.What You'll bring:Proven of experience in frontend development, with deep expertise in React, TypeScript, and modern JavaScript.Proven experience designing and maintaining SDKs or libraries used by other developers.Strong understanding of OAuth2, OpenID Connect, and secure authentication flows.Familiarity with ...

systems to payment processing. What You’ll Do Design and implement scalable backend services using Node.js and TypeScript Build responsive, performant user interfaces with React and Next.js Collaborate with product and design teams to deliver exceptional user experiences Mentor junior engineers and contribute to engineering best practices Participate in architecture … decisions and technical planning What We’re Looking For 5+ years of professional software development experience Strong proficiency in TypeScript, React, and Node.js Experience with PostgreSQL and Redis Understanding of cloud services (AWS, Vercel, or similar) Excellent problem‐solving and communication skills Nice to Have Experience with real‐time systems ...

thrives in developer experience, SDK design, and security-focused frontend engineering. What You'll be doing: Own and maintain a JavaScript SDK built with React and TypeScript, enabling secure integration with our custom Secure Token Service. Design intuitive, developer-friendly APIs that abstract complex authentication flows (OAuth2, OpenID Connect).Ensure … frontend security best practices and contribute to platform-wide improvements. What You'll bring: Proven of experience in frontend development, with deep expertise in React, TypeScript, and modern JavaScript. Proven experience designing and maintaining SDKs or libraries used by other developers. Strong understanding of OAuth2, OpenID Connect, and secure authentication ...

operating distributed systems • Experience in designing, building and consuming REST APIs • Broad and deep experience with UI technologies such as Angular, Vue or React especially with large scale enterprise applications • Good understanding of micro frontends. • Good understanding of CI/CD pipeline with multiple daily deployments to production • Excellent understanding … methodologies and modelling techniques • Technical Understanding of Microsoft .NET Framework/.NET Core, Node.js My client is based in South West London Technical Architect, React, Javascript ...

looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code … text-to-speech pipelines, realtime model orchestration, and latency and quality budgetsBuild product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCPDesign for multi-tenant scale, with one codebase serving many partners through configuration rather than ...

responsibilities:Collaborate with the team to create new screens, workflows, and features in Figma, for both new and existing applicationsContribute to frontend codebase in React, translating designs into production ready codePartner with developers, product managers, analysts, and trading teams to refine designs and solve user problemsApply UX principles while balancing … design, Computer Science, HCI, or related fieldWorking experience in Figma, with a portfolio showcasing process of designing and implementing web applicationsWorking experience in React, understanding of web development technologies (JavaScript/TypeScript, HTML, CSS)Familiarity with accessibility, usability and best UX practicesStrong collaboration and communication skillsAbility to manage tasks independently ...

Full Stack Developer X2 (Mid-Level – React, Node) – Product Development (Remote, UK-based) £50k - £60k Full Stack Software Developer required to join our client’s growing Product Development team. This is a unique opportunity to work remotely in the UK, contribute to modern digital platforms, and shape the future … architecture They work with a variety of technologies. You’ll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node, Jest, Cypress Ruby (non-Rails environment) – nice to have AWS: EC2, ECS, Lambda, S3, SQS Databases: MongoDB & PostgreSQL They are looking for someone ...

000London AreaLead Software Engineer (Full Stack Team - React.js/JVM)ð 120,000 - 130,000 + bonus + excellent Benefitsð Hybrid - 3 days onsite in Central London (Zone 1)Want to manage and lead a team that builds tech accelerating the move to clean, affordable energy Enjoy being hands … polyglot mindset.Work directly with customers/stakeholders and product managersCollaborate across engineering to improve practices, tooling and system design.Grow and shape your teamð» Next.js, React.js, Kotlin (JVM), Springboot, Ktor, AI tooling, AWS, distributed systems, microservices, CI/CD, modern engineering practices and methodologiesWhat They're Looking ForDeep fullstack engineering experience ...

from understanding the workflow through to designing, building, shipping and improving the solution. You should already be comfortable working with Python, React and TypeScript. You may have strengths in one area, but you’ll be expected to contribute across the stack and become increasingly full-stack over time. … replace your judgement. You remain accountable for everything that reaches production. What you’ll do: Responsibilities Build and ship high-quality features across our React, TypeScript and Python stack, taking ownership from discovery through to production and continuous improvement. Help reimagine how modern institutional treasury works by replacing manual processes ...

applications.Key Responsibilities:Build and Develop UIs: Design and implement front-end applications such as trading dashboards, risk and monitoring tools, and research interfaces using React and TypeScript.UX & Design: Own the end-to-end UX standards for key tools, collaborating directly with traders, and quants to translate workflows into clean, intuitive … tools into a cohesive, consistent, and maintainable UI ecosystem, reducing friction and context-switching for end-users.Required Qualifications:Front-End Expertise: Strong proficiency with React and TypeScript, including component-based architecture, state management, and modern front-end tooling.UI/UX Skills: Demonstrated ability to design and implement clean, user-friendly ...

This role will focus on User Interface implementation.What this role will do:• Build and maintain responsive, high-quality user interfaces using React.js, Material UI, HTML, and CSS, ensuring seamless integration of design and functionality.• Work closely with backend and frontend engineering teams to ensure designs are implemented with precision, maintaining … user experience by incorporating feedback, staying updated on UX best practices, and iterating on designs to meet evolving user needs.Skills required:• Strong proficiency in React.js, along with strong skills in HTML, CSS, and JavaScript.• Demonstrated experience developing and maintaining production-level code.• Solid experience in UI and visual design ...

TypeScript, but we care more about depth than the specific language) Strong front-end skills — comfortable with building polished, responsive interfaces, ideally with React Familiarity with cloud infrastructure (GCP preferred) and containerised deployment (Kubernetes) is a plus Experience building at scale in a fast-paced startup or high-growth environment … Encord and are not looking for experience across all of these — as long as you're open to learning. Backend: Python Frontend: TypeScript and React Deployment: Kubernetes Infrastructure: GCP Machine learning: PyTorch, CUDA, Ray Why Encord Competitive salary, commission, and meaningful equity in a high-growth startup Strong in-person ...

your judgement across the stack develops, so will the scope you take on. Key Responsibilities: Develop and maintain the dominAI web application using React and TypeScript, building reliable and performant interfaces for complex operational data. Build and extend backend services in Node.js that integrate with AI inference pipelines and simulation … Knowledge and Experience A degree in Computer Science, Software Engineering, or a related field - or equivalent practical experience. Professional experience building web applications with React and TypeScript. Working proficiency in Node.js - comfortable contributing to backend services, not just consuming them. Strong communication skills - able to explain your work to engineers ...

services. Establish scalable, secure, and compliant architecture patterns for Agentic solutions using industry standard frameworks. Provide hands-on technical leadership across MCP, Python, TypeScript, React, APIs, OpenShift, Kubernetes, and CI/CD engineering practices. Build AI solutions including Agents, chatbots, RAG & Knowledge platforms, Skill based agents, workflow automation … combination of the following: work experience, training, military experience, educationExpert-level hands-on engineering experience with AI development in Python, TypeScript, React, APIs, distributed high-performance systems, and application delivery. Deep experience designing and delivering AI-enabled applications using agentic workflows, LLMs, RAG, model orchestration, embeddings, vector search, and model ...

with backend capabilities.In any case, you have:- Strong experience as a software engineer working on production systems.- Proven expertise in building scalable UIs with React and TypeScript.- A track record of collaborating with backend engineers to shape API design and optimize data consumption.- Experience working with design systems, performance optimization … updates and managing large-scale data visualizations.- Collaborating across teams to influence API design and ensure seamless frontend-backend integration.Our Tech Stack:- Languages & Frameworks: React (TypeScript)- Testing Tools: Vitest (unit testing), Cypress (E2E testing)- Build Tools: Vite (for local development and production bundling)- Custom Solutions: Internal design system, advanced caching ...

support data, product analytics, experiments, and production behaviour. Hands-On Engineering Build and maintain product features, APIs, services, and integrations using Python, Django, PostgreSQL, React, TypeScript, and related platform tooling. Design data models, service boundaries, and API contracts that support complex property operations workflows at scale. Optimise application performance, database … cross-functional teams with product managers and designers. Production experience with backend or full-stack systems, preferably including Python, Django, PostgreSQL, REST APIs, React, TypeScript, and cloud infrastructure. Practical experience prototyping both user interfaces and working backend solutions, with enough product judgement to decide what should become production work. Strong ...

C# Developer/Software Engineer (C# .Net) London onsite to 90kAre you a backend focussed C# Developer You could be progressing your career in a hands-on C# Developer role at a global sports trading ...

Job title: Pre-Sales Senior EngineerLocation: London/Bristol - HybridTeam: CommercialReporting To: Head of Client Solutions This role is based in London or Bristol and requires existing right to work in the UK. At this ...

Backend Software Engineer/Developer (C# .Net) London onsite to 150kAre you an experienced C#, backend focussed Software Engineer You could be progressing your career in a senior, hands-on role at a global Sports ...

Some key info for you: ð We were founded in 2007ð We have provided over $3bn of funding to small businesses so farð We have been named in CNBC & Statista Top 150 UK Fintechs for ...

Software Engineer/Developer (C# .Net) London onsite to 90kAre you an experienced C#, backend focussed Software Engineer You could be progressing your career in a hands-on, backend focussed Software Engineer role at a ...