351 to 375 of 511 React Jobs in London

Write clean, efficient, and maintainable code Collaborate with designers and product managers Participate in code reviews and technical discussions Requirements 5+ years of full-stack development experience Proficiency in React, Node.js, and TypeScript Experience with cloud platforms (AWS/GCP/Azure) Strong understanding of web security and best practices Knowledge of database design and optimization More ❯

Developer you will take ownership of building a brand new Equity SWAPS 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 and coordinating with other … Java development skills including Spring, Spring Boot, microservices You take in pride in producing clean, high quality code You also have an appreciation of UI development with TypeScript/React You are collaborative and pragmatic, able to take ownership and work with others You have experience across the full development lifecycle Ideally you will have experience within a Fintech environment More ❯

CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end. You'll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack … excellent progression opportunities Opportunity to work on tech for good to positively benefits society Apply now to find out more about this Staff Software Engineer/Developer (Kotlin AWS React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come More ❯

CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end. You'll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack … excellent progression opportunities Opportunity to work on tech for good to positively benefits society Apply now to find out more about this Staff Software Engineer/Developer (Kotlin AWS React) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come More ❯

best practices, and foster a culture of engineering excellence. You'll lead the migration from a legacy monolith to a modern microfrontend and Backend-for-Frontend (BFF) ecosystem, leveraging React, Next.js, TypeScript, and advanced communication protocols such as GraphQL and gRPC. What You'll Own Lead the design and implementation of scalable, performant, and maintainable frontend architectures that support diverse … delivery velocity. Lead efforts in evaluating and integrating AI tools and automation that enhance developer productivity and product innovation. About You Extensive commercial experience building complex frontend applications with React and Next.js, with strong proficiency in TypeScript. Proven track record of architecting scalable frontend systems and migrating legacy codebases to modern frameworks. Deep understanding of accessibility standards (WCAG) and a More ❯

in eventually becoming a tech co-founder or startup CTO . Your Tech Superpowers Strong full-stack engineering skills with experience in rapid prototyping . Proficiency in TypeScript, Node.js, React , and cloud platforms . A data-driven mindset with experience in metrics-based development . A track record of shipping in fast-paced environments. Hands-on experience with API development … and modern software engineering practices. Our Tech Stack Frontend : React, TypeScript Backend : Node.js, TypeScript Cloud : Google Cloud Platform (Cloud Run, Cloud Functions, Firestore) AI : Claude/GPT, Clinebot, Devin Tools : Retool for MVPs, PERN Stack for durable applications If you've ever dreamed of being a technical co-founder or want to experience the thrill of startup-style innovation with More ❯

work and across the team Be a key player in the reliability, availability and scalability of software systems Requirements Strong experience with backend, frontend and mobile development with Node, React/React Native and PHP Experience with project management tools such as Jira or Linear Experience with cloud computing (AWS, GCP or Azure) Experience with designing and implementing service-orientated More ❯

understanding of data integration, data warehousing, and BI best practices. Excellent problem-solving, communication, and collaboration skills. Programming Skills: Java 17; MongoDB 5.3.x; Spring Boot; AWS (dynamo MSK); Kafka; React; NodeJS; Javabase (front-end) Thymeleaf; PySpark. Experience with IBM Digital Core Solution. Experience with Kafka and Confluent for real-time data streaming and integration. Job Description Description SAIC is seeking … understanding of data integration, data warehousing, and BI best practices. Excellent problem-solving, communication, and collaboration skills. Programming Skills: Java 17; MongoDB 5.3.x; Spring Boot; AWS (dynamo MSK); Kafka; React; NodeJS; Javabase (front-end) Thymeleaf; PySpark. Desired: Experience with IBM Digital Core Solution. Experience with Kafka and Confluent for real-time data streaming and integration. Target salary range More ❯

and need to up their productivity so are looking for an extra pair of hands to join their team in Mayfair. Good amount of tech on site including Python, React, Redux, and Node. Knowledge in some of these areas would be ideal and your tasks will include: Collaborating with designers Development of UI/UX components Create clean, consistent, tested More ❯

planning and architecting, to implementation and testing, to code review and maintenance. Requirements 4+ years experience as a software engineer Ability to make senior level contributions writing in TypeScript React PostgreSQL Bonus points for experience in high velocity and technically challenging roles Our tech stack Frontend: React Typescript GraphQL (Apollo Client) Playwright Jest Storybook + Chromatic Mantine GCP (Cloud Run More ❯

individual that truly understands the notion of wearing multiple hats and has experienced the challenge of building something brand new already. The stack here is modern JavaScript with Node, React, and Typescript, alongside Python. You do NOT need previous exposure to JavaScript or Python, but an open mind to work with them is a must. If you're interested in More ❯

with payments and cards Experience of working in a regulated and/or PCI/SOC2 compliant company with high availability and high security requirements Experience with Node and React in production systems Our tech stack: Rails/Node/React/MySQL (MariaDB)/Linux AWS ECS, Fargate, Lambda, Ansible, Terraform AppSignal, Papertrail What we offer 25 days annual More ❯

builds our user interfaces with a mission focused on making it easier for product teams to develop, iterate on, and ship high-quality products quickly. We're currently adopting React as a core part of our frontend stack, which means there's real scope for a successful candidate to shape how we modernise our tech and rethink our frontend architecture … hiring, mentoring, and career development of other engineers. Raise the bar for technical standards, performance, reliability, and operational excellence. What skills do I need? Multiple years of experience using React to build or support complex UIs. Deep knowledge of Web UI technologies (JavaScript, CSS, HTML) and Node.js. A proven track record of enabling other engineers or product teams. Ideally, experience More ❯

I am looking to speak to experienced Ruby Developers with commercial experience in a full-stack capacity. The ideal candidate will have extensive and demonstrable experience working with Ruby , React , TypeScript , and exposure to ApolloDB, GraphQL and Sidekiq. In this role you will be working with a market leader in Cyber resilience, which has seen incredible growth since its inception More ❯

have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of MySQL or Oracle More ❯

have a direct impact on improving customer experience and internal support processes. We’re looking for someone with: UI development or support experience Exposure to at least two of: ReactJS, GraphQL, AngularJS, AJAX, CSS, Mobile app development Ability to read/debug JavaScript and use browser developer tools Scripting with JavaScript, Python, Bash or Shell Understanding of MySQL or Oracle More ❯

the organization Required Skills & Experience: Strong leadership in software development and Agile/Waterfall methods Experience in insurance/reinsurance systems and data Solid programming background with front-end (ReactJS, HTML5, CSS, etc.) Database expertise: Oracle, SQL Server, PostgreSQL, MongoDB, Redis, etc. Proficient in test automation tools and practices Excellent communication, leadership, and stakeholder management skills Business acumen with experience More ❯

Candidate: Proven track record as a Product Owner or Product Manager in B2B SaaS in FinTech, RegTech, or compliance Technically fluent and confident working closely with engineering teams (e.g. React, Node.js, Python) Experience working in fast-paced startup settings with a strong focus on product-market fit Strong customer focus with a growth mindset and excellent communication skills Reach out More ❯

Candidate: Proven track record as a Product Owner or Product Manager in B2B SaaS in FinTech, RegTech, or compliance Technically fluent and confident working closely with engineering teams (e.g. React, Node.js, Python) Experience working in fast-paced startup settings with a strong focus on product-market fit Strong customer focus with a growth mindset and excellent communication skills Reach out More ❯

multi-year global projects Strong knowledge of Agile delivery methodologies Experience working with third-party vendors to deliver technology solutions Technical & Functional Expertise: High-level understanding of frontend development (ReactJS, Webpack, HTML5, CSS, Bootstrap, jQuery) Familiarity with UI/UX best practices , responsive layouts, and accessibility standards Experience with insurance/reinsurance systems and data platforms Strong grasp of product More ❯

development practices Proven experience managing technical teams. Hands-on experience with both relational (SQL Server, Oracle, PostgreSQL) and non-relational databases (MongoDB, Redis) Familiarity with front-end technologies like ReactJS, HTML5, and CSS frameworks Strong stakeholder management and communication skills at executive level Proven ability to align tech delivery with strategic business priorities Experience in financial services or insurance is More ❯

that collects company information and KYC documents from customers Asynchronous workers that OCR invoices Internal tooling to manage and process millions of dollars of transactions Our stack is: Typescript, React, NextJS, NodeJS, Express, PostgreSQL Requirements Experience in a VC-backed engineering team and building products used by customers A strong understanding of web development, frontend and backend best practices Excellent More ❯

languages (Python, DAX, SQL) with experience in data manipulation and statistical analysis • Solid understanding of data architecture principles and cloud-based analytics platforms • Knowledge of web technologies (HTML, CSS, React/Vue) for custom visualisation development Design & User Experience: • Exceptional visual design skills with deep understanding of colour theory, typography, and information design principles • Strong grasp of accessibility standards (WCAG More ❯

languages (Python, DAX, SQL) with experience in data manipulation and statistical analysis • Solid understanding of data architecture principles and cloud-based analytics platforms • Knowledge of web technologies (HTML, CSS, React/Vue) for custom visualisation development Design & User Experience: • Exceptional visual design skills with deep understanding of colour theory, typography, and information design principles • Strong grasp of accessibility standards (WCAG More ❯

with customers, defining product features, and owning their delivery from start to finish. Comfortable working across the technology stack. Our challenges vary from optimising performance of our data-intensive React frontend to provisioning cloud infrastructure in AWS using tools such as Terraform. You're a great technical communicator, and enjoy explaining complex concepts to others. Bonus points if you have More ❯