senior asp.net developer jobs in County of Cardiff

Senior Full-Stack Web Developer | Legal EdTech | Remote Join a leading EdTech provider delivering innovative online learning as they embark on a major transformation. As a Senior Full-Stack Web Developer, you’ll design, build, and modernise scalable web applications that power our learning management systems. You’ll work across ASP.NET Core, React, C#, JavaScript, and Azure. What you’ll do: -...

Senior .Net Developer Remote working- In office once a quarter 12 Month FTC - Highly likely conversion to a permanent opportunity I am looking for a Senior Software Developer / Dot Net developer to join a Insurance broking client of ours. This person will be focusing on integrating Applications within our clients core broking system (Acturis) As a senior, you’ll actively mentor and coach less...

You will be contracted to the NRW office in Bangor and a suitable hybrid working pattern will be agreed on appointment. Any regular face to face meetings or training will be planned in advance. Interviews will take place through Microsoft Teams between 3 - 10 December 2025 Successful applicants will be subject to a satisfactory Disclosure and Barring Service Check (DBS) check.

Job Description Your new company Join a purpose-driven organisation at the heart of a thriving community, where technology is being harnessed to transform lives. This values-led public sector organisation is embarking on a bold digital transformation journey, with a clear mission to deliver outstanding services to end-users through innovation and excellence. With a strong commitment to social...

Senior Power Platform Developer Power Apps, Power Pages, Power Automate, Azure DevOps £500-550 per day, Outside IR35 Initially 4 Months (very likely extensions) Fully Remote (Must be UK based) One of our favorite Consulting partners urgently requires the services of a Senior Power Platform Developer to join a project team, delivering a high profile NHS project. Key Responsibilities: -...

HTML5 Games Developer - Pixi.JS £60,000-£75,000 Oxford – Flexible/Remote Harvey Nash have partnered with a global business well established within the online gaming/gambling industry who have ambitious growth plans. The company have a wide array of clients ranging from independent gaming studios to the world’s largest online casinos delivered into by teams across UK, Canada, South Africa, and...

Senior Business Development Representative Cyber Risk, GRC, Cyber Security £45,000–£60,000 base + commission UK | Remote-first We’re working with a high-growth SaaS client delivering cutting-edge solutions to the cybersecurity industry. Off the back of strong momentum and inbound interest, they’re expanding their go-to-market team with a senior-level hire who can hit the ground running and...

Senior Golang Developers x 2 (React/AWS) - Remote - New Roles! A leading organisation in the Gloucestershire area requires a number of Senior Golang Developers to join its growing team. Suitable candidates will have strong Golang experience coupled with both React and AWS. in summarym the successful candidates will have the following: - Strong Golang experience - Proficiency in React and...

You will play a crucial role in designing and implementing scalable, efficient integration solutions using a range of data formats and technologies, including XML, JSON, and CSV. As an expert in XML tooling, XSLT, and data transformation, you will be responsible for ensuring data accuracy, performing complex transformations, and supporting integration and migration processes.

Senior Software Developer required by a successful software company with an international client base. The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience - Extensive C# experience - SQL...

Senior Unity Engineer x5 - AAA Mobile Games Remote (UK or Europe based) | Japan HQ Studio | Full-time | Option to Relocate to Japan A Japan-headquartered AAA mobile game studio is expanding its team because of huge new funding and some very big upcoming releases that need to be worked on. With over 2 million daily players, they’re building sophisticated, large-scale titles that combine...

IntaPeople are working with a disruptive financial services organisation who have been recognised as having one of the most exciting upcoming products in Europe. We are currently looking for a Senior Software Engineer who has a strong focus on the front-end. You’ll be working closely with a team of Software Engineers and Product Managers to build and maintain modern web applications for their...

Senior React Native Developer - Outside of IR-35 A leading Digital Agency/ Consultancy in London is on the search for a React Native Freelancer to join the team on a 6 month interim, this is 100% Remote. Rate - Up to £500 per day (Outside of IR-35) 100% Remote Please do apply, if you are available within the next 2 weeks. Senior React Native Developer - Outside of IR-35

Senior Sales Development Representative (SDR) – UK Remote - Corporate Gifting Are you an ambitious sales professional with experience selling into large corporations? Do you thrive on building relationships with Marketing Managers, Heads of People, and Executive Assistants? If so, this could be the perfect next step for you. We’re working with a thoughtful gifting company run by a lovely team...

⭐ **Senior Full Stack Developer with UI bias- making the world a better place! I'm working with a global software house making the world a better place! . This isn't just another dev role - it's a chance to impact real-world justice through technology. 🚀 **Why Join?** • **Technical modernization project** - leading the migration from legacy MVC to React architecture • **Newly created role** -...

Senior Thingworx Developer Can be based anywhere in the UK - £54,000 + excellent benefits My client is growing their PLM development team and looking for an experienced Thingworx Developer to design and enhance digital tools that connect engineering, data, and manufacturing across their business. You’ll: - Develop dashboards, interfaces, and database integrations - Build and support RESTful /...

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...

🚨Hiring: Senior Laravel Developer (Remote, Full-Time) Paying up to £55,000 🚨 Small but mighty remote engineering team (currently 6 strong) is growing — and they're looking for a Senior Laravel Developer to take real ownership of core product development. This isn’t just another dev job — you'll be working on meaningful eCommerce challenges, helping shape the architecture, features, and future...

Senior Python Developer – iGaming (RGS Integration) Location: Buenos Aires, Argentina Salary: negotiable, depending on experience Clear Edge has partnered with a leading iGaming provider to recruit a Senior Python Developer. This is a chance to join a fast-growing company where you’ll play a vital role integrating their Remote Gaming Server (RGS) with global casino platforms, ensuring secure,...

You will have the opportunity to work on various modern web applications across a variety of platforms focusing on the backend. Should you choose, this role will allow you to expand your leadership capabilities as you progress in the company. The team tend to go into the Oxford office once a month.