react js developer jobs in County of Cardiff

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

Senior Full Stack Engineer | Up to £110K | One of the UK's fastest growing AI platforms | UK Remote | React/Node/TypeScript I am currently working with one of the fastest-scaling platforms in the creator economy which is a creator-first, AI-powered product that enables creators around the world to directly monetise their audiences. Every system you build will operate at serious global scale. 🎯...

🚀 Senior Full-Stack Engineer – TypeScript / React / AWS 💰 Up to £80k | Fully Remote (UK) 💻 Tech Stack: TypeScript, Node.js, React.js, AWS ✅ Slight backend lean We’re on the hunt for a hands-on Senior Engineer to join a fast-moving team delivering real, production grade systems. This isn’t R&D or proof-of-concept work, they’re shipping cloud-native, AI-enabled products that customers actually...

You will help deliver digital products from idea to implementation. Day to day you will build new features, review code, take part in technical discussions and support the smooth running of our services. There will also be occasional first and second line support, along with opportunities to guide and mentor junior team members.

A leading recruitment agency is seeking a Frontend Developer skilled in React and TypeScript to join a Cardiff-based fintech team. The role offers a hybrid work setup with three days in the office and two days from home. Responsibilities include developing scalable front-end components, collaborating with product and design teams, and contributing to a forward-thinking team exploring AI-assisted...

You will be responsible for selling prestigious new cars, in addition to other services such and insurances etc *

You must be target driven and commission led as the potential to earn VERY WELL is real * Strong customer service attributes and experience is a must as the reputation of the business is crucial *

You will be working in a fast-paced environment to develop new website themes and add new features in a complex Next. js-based codebase (including a CMS). This is a great opportunity for the right person to take on a challenging and broad role. Homeflow is operating on a fully remote basis but occasional travel will be required for our company meet ups (bi-annually at most in the UK).

On a mission to help people who have been diagnosed with chronic kidney disease, this start-up are looking to bring on a Senior TypeScript Developer, who’s fully embraced AI-assisted development. Their mission is to make life better for people suffering from kidney disease by building one of the first algorithm-based behavioural change programmes. The application that does this brings together...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

About The RoleJob Level: 10 UK WideWe are looking for aLead Software Engineerwho will be responsible for the design, development, and deployment of high-quality software solutions. This role involves leading a team of engineers on high-profile projects, ensuring best practices are followed, and driving continuous improvement in software development processes.

You will work with Solution Architects to create optimal designs through an iterative process, aligning the user need with the system requirements and organisational objectives. Working closely with engineering teams designing technical solutions and ensuring their delivery according to defined architectures and principals.

Senior Full-Stack Engineer Fully Remote | UK Neulinx have partnered with a fast-growing B2B SaaS product company to hire an experienced Senior Full-Stack Engineer to join their engineering team at an important stage of growth. This is a hands-on senior role suited to someone who enjoys building high-quality product features, taking ownership of complex systems, and influencing technical direction...

You will join a talented, dynamic, and diverse team of designers, engineers, and technical specialists with a unique working culture.

You will liaise with other team members across the project team and take ownership of project tasks.

You will coordinate with other professionals, developing effective relationships, to stimulate future business growth.

You should be comfortable with most of our core technologies:

📍 Hybrid (UK-wide with client site visits) | 💷 Competitive Salary + Benefits Our client is a mission-led consultancy delivering modern, secure software solutions to the UK Government and Defence sector. They’re expanding their development teams and are looking for talented Python Developers who want to make an impact on meaningful projects. You’ll be joining a high-trust, agile environment,...

You will have the opportunity to be part of a global high-performing dynamic software team, doing what you do best. The role is focused on designing and building the best solutions for our users in over 120 countries, whilst maintaining best practices in software development.

Senior Rust Engineer UK, fully remote (Must be based in the UK now) Sadly no sponsorship possible Up to £95K Skills: Rust | Backend Systems | gRPC | Postgres | Integrations I’m partnering with an early-stage, product-led startupbuilding a platform for transport operations - frankly, one of the most complex, real-time environments in the world. The team are already profit making with runway...

What that means day to day You'll be a guardian of Alcumus’ systems architecture and principals, having an in-depth knowledge of them. Translating technical concepts between software engineering, product, and operations so they are understood by all. Working with business, product, and technology stakeholders to translate business problems into solutions. Defining a technical roadmap through...