22 of 22 React Jobs in Cardiff

with technologies Golang Good experiene with TypeScript or Java would also be beneficial but not essential Experience with both JavaScript and frameworks such as React and Express.js (or similar) Strong experience using HTML & CSS Experience with cloud platform providers such as AWS, Azure or GCP Experience with CI/ ...

focus on large-scale, complex systems. Polyglot engineer comfortable working across multiple languages and frameworks (weve used Python, Java, Kotlin, Node.js, C#, JavaScript, Express, React and Next.js to name a few). Passion for learning new technologies and helping others do the same. Proven track record of leading software architecture ...

again. Most of our engineers release code to production every few days and we have a daily release cycle. Our web stack includes: Java, React, TypeScript, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don't need to have experience with everything listed but you do need ...

principles Nice to have Not essential, but any of these would be a bonus: Experience with a front-end/full-stack framework like React or Remix Experience with a back-end language, framework, or backend platform like Supabase Experience setting up or running A/B tests Experience building ...

backend-leaning but requires strong full stack capability, with exposure to both web and mobile app environments. Key Skills: Node.js, TypeScript, BFF experience essential React.js & React Native Terraform, K8's, Docker Cloud experience (ideally GCP) Key details: Up to £550 per day, Outside IR35 Initial 3 months (extensions likely) Interviews ...

ideal candidate will have worked with all listed technologies below and have past experience of migrating legacy systems. Key Skills: Typescript, Node (Nest.js) React/Next.js C#/.Net (legacy) Postgres AWS The contract will be an initial 6 months with a very high likelihood of extension and is outside ...

between Postgres, Redshift, and analytics layers. Design APIs for frontend and external integrations. Balance speed and quality — building for the long term. The stack React • TypeScript • Node.js • Postgres • AWS • Redshift • DBT • Power BI • Jupiter Notebook You'll bring 8+ years of backend engineering experience in complex systems. Experience with data ...

development across AI-first products Turning ML capabilities (Python, TensorFlow, PyTorch) into real customer value Working closely with engineering teams using TypeScript, Node.js, React, and Next.js Partnering with data teams working across AWS, Kafka, Spark, and modern data pipelines Shaping products built on secure, scalable fintech architecture (Event-driven, microservices ...

from design system evolution to performance optimisation in a team that values thoughtful, maintainable engineering over quick fixes. Experience needed Strong commercial experience with React and TypeScript A focus on code quality, scalability, and maintainability A good understanding of UI/UX fundamentals and accessibility Comfortable working with AntD ...

make our products better. Tech stack You don't need experience with everything, but an appetite to learn and share knowledge is key. ReactJS, NextJS, Typescript, Playwright, EventStore, AWS. About you You love software engineering. You enjoy playing with new technologies, keeping ahead of trends, and sharing ideas. You care ...

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 ...

figuring out what needs building. Curious: You have a genuine interest in voice AI, telephony, and AI agents. Our Tech Stack Python (FastAPI), TypeScript & React (Next.js), PostgreSQL AWS for infrastructure Various AI models and tooling: OpenAI, LangGraph, Google VertexAI The team James (CEO) built and exited a marketplace to 1M+ ...

Full-Stack Python Engineer (Backend-leaning, React exposure) EdTech - Outside IR35 I'm supporting an EdTech start-up doing some genuinely exciting work in the learning space, and they're looking for a Full-Stack Python Engineer to join on a 6-month contract. This is a hands-on build … Head of Tech and contributing directly to core product features. It's mostly back-end-focused, but there will be some front-end React work initially, so full-stack experience is important. What they're looking for: A strong Python engineer (4–5 years) who's comfortable owning back ...

annum Location: Fully Remote (UK-based) What you'll be doing: Design, build, and optimise scalable software using Node.js, TypeScript, React, AWS Lambda, Step Functions, DynamoDB Contribute to architecture discussions and ensure solutions are secure, cloud-native, and maintainable Use AI-assisted tooling to speed up development, testing, and debugging … ensure technical alignment across the platform What you'll need: Strong full stack experience with a backend-first mindset Expertise in Node.js, TypeScript, React, and modern cloud engineering Hands-on experience with AWS serverless, particularly Lambda, Step Functions, DynamoDB Solid understanding of scalable architecture and performance optimisation Experience in scale ...

market and our rapidly expanding team, you will have the opportunity to work on a wide range of projects, including fully custom WordPress websites, React websites with Express JS and more. Comprehensive training will be provided. This presents an outstanding opportunity to advance your career and broaden your knowledge across … problem-solving skills paired with meticulous attention to detail. Outstanding communication and teamwork abilities to facilitate effective collaboration. Additional experience with PHP, Blade, WordPress, React JS, Next JS, and Express JS is a plus but not mandatory. Opportunities/Benefits: Opportunities for career growth and development A collaborative and creative ...

Your work will focus on: Designing and implementing robust event-driven microservices and APIs Building scalable, cloud-native systems on AWS Developing modern, responsive React front-ends Integrating LLM-powered capabilities into real-world workflows Collaborating closely with product and AI specialists to turn ideas into reliable, customer-ready features … What you'll be working with You should be comfortable with most of our core technologies: Node.js and TypeScript React and modern front-end tooling AWS (e.g., Lambda, ECS/Fargate, API Gateway, SQS/SNS, DynamoDB, RDS) NestJS or equivalent back-end frameworks Microservices and event-driven architectures ...

engaging user interfaces. You will contribute to evolving the architecture, tools, and processes as the company grows, working with modern technologies such as Node.js, React, GraphQL, and Postgres. This is an excellent opportunity to be part of an ambitious roadmap and deliver value quickly in an agile environment. What … teams to develop new features across the full stack Build and maintain performant, secure backend services using Node.js and GraphQL Develop user interfaces with React.js and modern front-end practices Write clean, maintainable, and well-tested code Participate in code reviews, team discussions, and agile ceremonies Help improve and evolve ...

Full Stack Engineer | TypeScript, React, SQL Server, Azure | Innovation Projects Staff Engineer/Principal Engineer/Full Stack Engineer Day rate: £550–£600/day (Outside IR35) Remote Working (UK) Contract: 6 months (likely extension) The Role You will join a new innovation function that operates as the technical strikeforce … thrive in problem spaces that aren't fully defined yet. What They're Looking For (Non-Negotiables): TypeScript (strong commercial experience) React or similar modern frontend framework Backend engineering skills with Node.js/TypeScript Strong SQL skills & RDBMS experience (SQL Server preferred) ORM experience (Prisma, Sequelize, TypeORM, or similar) Full ...

What you will work on You will contribute across the stack, including: Building and shipping high velocity full stack features using Python, TypeScript and React Designing backend systems that integrate with LLM driven workflows and agentic pipelines Turning messy human knowledge into structured, self improving AI behaviours Working directly with … enjoys fast paced startup environments Someone who values ownership, learning and working closely with technical founders Tech stack Languages: Python, TypeScript Front end: React Cloud: AWS AI: LLM tools, agentic systems, workflow automation Approach: First principles, rapid iteration, strong fundamentals What you will get £40k to £60k salary based ...

/CD, and edge deployments Next.js as the core framework for SPAs, SSR, and PWAs TypeScript across the stack for typed, maintainable code React and ShadCN (or similar) for component-based, accessible UI Clerk/WorkOS for authentication and user management Supabase for data persistence, auth, and real-time features … 6+ years of full stack web development, ideally with time in client-facing product or agency environments. Strong expertise in Next.js, TypeScript, and the React ecosystem, including SSR/SSG and performance optimisation. Proven experience leading or mentoring other developers, including running code reviews and guiding architecture decisions. Experience building ...

Senior/Mid Frontend Engineer (React.js & TypeScript) 1 Day in office London - Open for fully remote but London based • £80,000 – £100,000 We're partnering with a small, research-driven AI startup (≈15 people) founded by leading engineers from major tech companies. Their mission is to make advanced … engineering team to take the platform to the next level. What You'll Do Build and maintain complex, high-performance front-end applications using React and TypeScript. Contribute to front-end architecture, tooling, and best practices. Help shape new product experiences that make AI capabilities simple and usable. What ...

looking for a Senior Frontend Developer, based in the UK. This role will involve building and maintaining our new website platform using Next.js, React, TypeScript, TailwindCSS and MongoDB. You will be working in a fast-paced environment to develop new website themes and add new features in a complex Next.js … retros and team discussions We're looking for someone who has 5+ years' experience in front end web development Strong competency with TypeScript, React and Next.js Strong problem solving and debugging ability Good understanding of performance, optimisation and best practices; particularly in React A passion for web development - someone ...