asp .net developer jobs in County of Cardiff

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...

Job SummaryAviation. It connects our world, brings people together, provides opportunities, accelerates economic growth, and is just so very cool! Come work for NAVBLUE, a leading services company owned by Airbus, dedicated to Flight Operations, Air Traffic Management solutions and services for airlines, airports, and Air Navigation Service Providers. We combine aircraft manufacturer expertise,...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

A global engineering firm in Cardiff is seeking an experienced Sustainability Consultant to lead sustainable building solutions for high-profile projects. The role involves coordinating sustainability delivery across teams, developing project approaches, and enhancing client relationships to meet sustainability goals. Ideal candidates will possess a degree in a related field and experience in...

Business Development Manager - UK Market Entry High-Value Capital Equipment | Aesthetic Medical Technology We are supporting the UK launch of a next-generation aesthetic medical technology platform operating at the intersection of Imaging, software, and AI. Our client is looking for the UK's top performing capital aesthetic reps to join this incredible journey of growth and differentiation from...

You will be given complete ownership of your business area and the opportunity to work on the full project life cycle.

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

A leading technology provider is seeking a Technology Lead skilled in .NET and Azure to design and implement high-performance cloud solutions in Cardiff. The role offers a hybrid work environment and a competitive rate of £320-370 per day. With a contract duration of 6 months, extensions may be available based on project needs. Ideal candidates will have strong technical skills and experience...

Location: Hybrid from any of our Our time is NOW. , the worlds largest pure play sustainability consultancy, are hiring for an experienced Senior Ecologist with a robust background in Biodiversity Net Gain (BNG) assessments within the UK. This role is primarily desk-based and involves supporting our wider UK team in delivering BNG assessments. Key responsibilities Lead from the front, acting...

Overview: Prodigi is the leading global print-on-demand platform, enabling businesses to scale their operations through streamlined supply chains and maximised profits. Founded in 2014, we ranked 14th on the Sunday Times Virgin Atlantic Fast Track 100 list of the UK's fastest-growing companies. With a worldwide network of over 50 production facilities across 10 countries, including our own...

Role: Software Engineer (.NET / C#) Working hours: 10am-6pm (aligned to US team) Fully Remote (UK-based) Salary: £50,000 - £60,000 p/annum CPS Group are partnering with a Data Consultancy to hire a Software Engineer to support their expanding US-facing development team. This role sits within a highly collaborative engineering function and reports directly into the Director of Development, who...

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.

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

NAM Shift pattern Monday – Friday : 8 hour shifts. Working across our Newport (Duffryn) and Cardiff (St Mellons) Site Who We Are IQE is a leading global supplier of compound semiconductor wafers and advanced materials. As the only compound semiconductor epitaxy foundry with a worldwide presence and scalable manufacturing, IQE drives technology growth. Our vision is to be the top provider of...

Account Manager – Cyber Security Solutions On behalf of a fast‑growing Cyber Security Solutions provider that helps organisations protect their digital assets and stay ahead of evolving threats, we are seeking a proactive and relationship‑driven Account Manager to nurture and grow a portfolio of mid‑market and enterprise clients. This role blends strategic account development with targeted new...

Job Description NAM Shift pattern Monday – Friday : 8 hour shifts. Working across our Newport (Duffryn) and Cardiff (St Mellons) Site Who We Are IQE is a leading global supplier of compound semiconductor wafers and advanced materials. As the only compound semiconductor epitaxy foundry with a worldwide presence and scalable manufacturing, IQE drives technology growth. Our vision is to be the...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

You will be the key figure ensuring the firm remains safe, ethical, and fully compliant as it expands its offerings and regulatory footprint.

A leading engineering firm in the United Kingdom is seeking an Associate/Technical Director Sustainability Consultant to lead sustainable building initiatives. The role requires individuals to develop sustainable strategies, manage projects, and engage with clients across diverse sectors. Applicants should have a relevant degree, experience in sustainability assessments, and strong communication...