Back-end Developer jobs in Cardiff

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...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

You will also be assigned an expert tutor and a support mentor who will work with you 1-2-1 or in group sessions to provide additional training and support. Once the HTML & CSS courses are complete, your trainer will move you forward to the next stage. Stage 2 – Additional Online Training (*up to 12 weeks)

You will work as part of a collaborative R&D team focused on delivering high-quality features, and developing the client architecture using the latest UI patterns.

You will be expected to support and collaborate across the whole team to develop business and drive project specification. if this sounds like you keep on reading !

You will be working on true innovation in an ethical industry - if that sounds of interest to you then please apply, or reach out to for more information. Senior Full Stack Developer | Oracle PL/SQL | ColdFusion | Digital Transformation | 1 day every 2 week into Cardiff | £50,000-£55,000 + benefitsRSG Plc is acting as an Employment Agency in relation to this vacancy.

We’re Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we’re looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you’ll do - Develop and extend our React.js &...

National Business Development Manager Liverpool, Manchester, Leeds, Sheffield based Salary: £42-45k (up to £50k for top performers) + OTE £15-25k Package: £700 pcm car allowance, mobile, laptop, iPad, pension, 24 days holiday We're looking for a hunter‑style salesperson to drive new business across the UK dealer network. This is a national role with full autonomy - you'll manage your own...

You will have the opportunity to: - Bring experience in sales, business development, health, coaching or leadership — or simply be willing to learn - Recommend pharma-grade, science-backed products - Earn commission + global income streams through product referrals & international team building

Job Description 💻: GIS Development 🏢: Leading Global Marine Company 🍃: Offshore Wind 📌: Remote - 1 trip per month to the office An established geoscience and offshore energy consultancy is looking for a Geospatial Developer to join its UK-based team, with opportunities to work from Newcastle, Aberdeen, Glasgow or London 🌍 This role is ideal for someone who enjoys turning complex spatial...

Software Developer (Web & Internal Tools) Remote-first | UK-based up to £50,000 PA Dependent on experience We’re supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and tooling. This is a hands on role in a small, trusted tech team, working across a customer facing web platform and the internal...

Your new company In order to make an application, simply read through the following job description and make sure to attach relevant documents. This growing organisation based in Wales is looking to take the next step on their digital journey and integrate AI Agents to support the expanding workforce. The organisation ideally would like you to work Hybrid in Cardiff. xujxxms Your new role We are...

For the past 18 months, we've been proud to work with a business who's on a serious growth curve - using AI to solve a very real, tangible issue for some of the biggest brands in the world. Backed by investment, a strong client base, and a mature marketing engine, the challenge now isn’t demand — it’s keeping up with it. That's why we’re looking for a Sales Development Representative to sit at...

Location: Remote (UK-based) Salary: £38,000 - £42,000 base + uncapped commission OTE: £65,000 - £80,000+ Employment Type: Full-time, Permanent About FlowDesk BPO FlowDesk BPO builds and manages dedicated offshore teams for UK and international businesses. We're not a traditional outsourcing company—we're an operating partner that helps businesses scale faster through high-quality,...

Senior Development Manager - Onshore Wind, Solar, Battery Storage Salary & Package - up to £80,000 DOE + annual bonus, car allowance, healthcare Remote Working Piper Maddox are partnering with a leader the UK renewable energy industry to hire a key addition to their project development function in 2026. This company are an IPP with a demonstrable track record in successful development,...

Your new company This growing organisation based in Wales is looking to take the next step on their digital journey and integrate AI Agents to support the expanding workforce. Your new role We are seeking an experienced AI Solutions Developer to design and implement a front-end Copilot agent for employee interaction. The AI Agent solutions will provide guidance on legislation, standards, and...

You will travel extensively, ensuring targets are met and collaborating across teams to deliver effective solutions. A bachelor's degree and a minimum of 5 years of relevant experience are required. This position offers a competitive salary and benefits, as well as opportunities for career development.

You will be working on true innovation in an ethical industry - if that sounds of interest to you then please apply, or reach out to for more information. Senior Full Stack Developer | Oracle PL/SQL | ColdFusion | Digital Transformation | 1 day every 2 week into Cardiff | £50,000-£55,000 + benefits

We're Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we're looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you'll do - Develop and extend our React.js &...

Your new company This growing organisation based in Wales is looking to take the next step on their digital journey and integrate AI Agents to support the expanding workforce. Your new role We are seeking an experienced AI Solutions Developer to design and implement a front-end Copilot agent for employee interaction. The AI Agent solutions will provide guidance on legislation, standards, and...