26 to 49 of 49 React Jobs in Westminster

ownership, and speed Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Previous roles where you interfaced with customers or led technical projects with external stakeholders Our values Trust: We build trust ...

ownership, and speed Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Previous roles where you interfaced with customers or led technical projects with external stakeholders Our values Trust: We build trust ...

have a fully aligned Tech stack across the web ecosystem with a collection of team-owned mono-repos - all powered by an internal React Design system which allows us to deliver at scale. You’ll have plenty to learn and will join a friendly and collaborative group of talented engineers … skills: Proven track record of building and maintaining customer-centric web applications/SPAs. Excellent verbal and written communication skills. Strong proficiency in React and its core principles. Solid grasp of Web fundamentals: HTML5 (Semantics & Structure) CSS (Responsive Design, Specificity) JavaScript ES6 General Networking (HTTP, IP & DNS, Caching) Proficient with ...

high ownership and urgency Familiarity with tools for today’s AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering Prior experience with React, TypeScript, and/or Go Experience interfacing with customers or leading technical projects with external stakeholders Our values Trust: We build trust with our customers ...

Build full-stack applications and internal engineering tools, including backend services, APIs, automation layers, and user-facing interfaces using technologies such as Python, Java, React, or Angular. Engineer scalable solutions that support central operational use cases such as self-service tooling, operational dashboards, alert enrichment, incident reduction, service recovery … development experience, with hands-on expertise in Python and Java for backend or service-layer engineering. Strong working knowledge of front-end development using React or Angular, including building interfaces for operational or engineering use cases. Proven experience designing and deploying end-to-end solutions, from application development through production ...

software solutions for technical challenges. Write secure, high-quality production code and maintain UI logic that integrates with shared platforms. Develop and maintain reusable React components and UI patterns for complex workflows. Build high-performance, data-intensive user interfaces using profiling and optimization techniques. Engineer accessible, inclusive experiences by partnering … developers to build custom UI components. Develop tools and automated processes to streamline development and enhance developer experience. Build Generative AI interface solutions using React and TypeScript, following CI/CD standards. Work closely with Product, UX, and cross-functional partners to deliver capabilities in agile sprints. Actively ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

field, or equivalent professional experience. Even better... AI-related experience (experience with product development for AI agents a plus). Some coding experience with React, Typescript, and Go. MBA or equivalent professional experience (while this is a product management role, you will have the opportunity to lean into broader business ...

will help build and evolve Execute, a real-time, latency-sensitive front-office trading UI used across global markets. You will deliver complex React and TypeScript web applications in close partnership with product, UX, QA, and back-end teams across a global organization. Your success will be measured by resiliency … hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture Build and evolve real-time React and TypeScript UI features for Execute, supporting complex, high-throughput trading workflows. Contribute to UI architecture and design for latency- and availability-sensitive experiences, balancing ...

troubleshoot complex issues, perform root cause analysis and continuously improve reliability, quality and speed of delivery. Build and maintain web-based user interfaces using React.js, modern JavaScript/TypeScript, HTML and CSS, enabling colleagues to interact effectively with data and AI based tools. Technical Excellence: Promote strong software engineering practices … experience building LLM-powered applications (e.g. copilots, assistants, agent based workflows), with a focus on reliability and real user impact. Good working knowledge of React.js and modern JavaScript/TypeScript, with experience building and maintaining production web interfaces. Proficiency with HTML and CSS, and an understanding of usability, accessibility ...

development and enhancement of market-leading technology solutions. You will be hands-on in building a critical, trader-facing Risk Management UI using React, while also mentoring and guiding team members in best development practices. Your expertise will directly influence business outcomes, leveraging deep technical skills and innovative problem-solving … develop, and troubleshoot creative software solutions, applying innovative thinking to solve technical challenges and deliver robust systems. Write secure, high-quality production code in React and Typescript, and conduct thorough code reviews and debugging for team contributions. Identify and implement opportunities to automate or remediate recurring issues, enhancing the operational ...

oversight Practical cloud native experience Experience in Computer Science, Computer Engineering, Mathematics, or a related technical field Preferred qualifications, capabilities, and skills Expertise in React 17+ and modern front-end development practices Experience with AG Grid or similar advanced data grid libraries Proven ability to optimize web applications for performance ...

standards. Confident in technical convictions, collaborative in approach, focused on outcomes. What You Bring Proven full-stack engineering experience, delivering production-ready applications using React, Node.js and AWS on web and mobile platforms. Hands-on experience with iOS or Android native development, or React Native for mobile-first product work. ...

facing cross-asset risk platform (FX, Rates, Credit, Equities). Build out new functions in risk management applications using Python for the backend and React, Redux, and TypeScript for the frontend. Collaborate with engineers and product management across the globe to deliver high-quality solutions for external clients. Build … Strong analytical and problem-solving skills. Excellent verbal and written communication skills. Preferred qualifications, capabilities and skills Experience in Python (backend). Experience in React and TypeScript. Experience in finance/investment banking as an application developer, ideally with exposure to FX, Rates, Credit, and/or Equities. Experience building ...

team Ability to focus on promptly addressing customer needs Excellent written and verbal communication skills in English Preferred qualifications, capabilities and skills Proficiency in React framework & Building applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Understanding of REST APIs ...

qualifications, capabilities and skills Formal training or certification on JavaScript concepts and proficient applied experience Ability to write testable, clean JavaScript code Proficiency in React framework Familiarity with writing unit tests Understanding of REST APIs and GraphQL Ability to work in a dynamic, agile environment within a geographically distributed team … Ability to focus on promptly addressing customer needs Excellent written and verbal communication skills in English Preferred qualifications, capabilities and skills Building applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Comfortable working with projects partially or fully using TypeScript ...

team Ability to focus on promptly addressing customer needs Excellent written and verbal communication skills in English Preferred qualifications, capabilities, and skills Proficiency in React framework, building applications using React Native in TypeScript or JavaScript Native application development across Android/iOS in Kotlin/Swift Understanding of REST APIs ...

side and server-side to ensure robust management of headers and adherence to security policies Utilise modern frameworks such as Next.js and libraries like React Write comprehensive unit tests and apply testing tools including Jest and Cypress to ensure code quality and reliability APIs: End-to-end deliver fully functional … high-quality, maintainable code and leveraging both languages to solve complex technical challenges. Full-stack expertise, comfortable working across front-end frameworks (such as React or Next.js) and back-end services, seamlessly integrating user interfaces with robust server-side functionality. A strong interest in AI and Machine Learning, and experience ...

Node.js. Strong backend experience: designing APIs, working with PostgreSQL, and managing background jobs and async workflows. Solid frontend skills with React. Experience with React Router v7 or Remix is a plus. Experience with cloud infrastructure (AWS and/or GCP) — you're comfortable with services like S3, media pipelines ...

business partners around the world. Job responsibilities Significant contributions to designing and building scalable and performant front-end solutions written in TypeScript using React Working across B2C and B2B features Advocate for and encourage high standards and best practices to maintain high code quality. Providing constructive and insightful feedback … decision making process. Required qualifications, capabilities and skills Formal training or certification on software engineering concepts and proficient advanced experience Technical: Highly competent at React with TypeScript, with a strong engineering-first mindset, an ability to solve complex problems elegantly with an emphasis on scalability and performance. Adaptability: Thrive ...

contract Your day-to-day: Operationalise the design system. Co-lead its evolution and governance, build and maintain a robust component library in React/TypeScript, and establish clear adoption standards across product teams – enabling the operational loop between Figma, code, and multi-brand delivery Help define how our design … reflects evolving product priorities Your skillset: Proven experience building and evolving multi-platform design systems (Web, iOS, Android). You are an expert in React, TypeScript, and modern CSS, with a focus on token architecture and scalable component libraries You are a true systems thinker who understands versioning, governance ...