senior asp.net developer jobs in Cardiff

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

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...

We're the #1 symptom tracker on iOS and Android and looking for a senior react native developer to help continue our growth 🚀 📌 The basics - React Native developer (5y+ experience) - £70,000 base salary - Make a genuine difference to the lives of people with health conditions - Work with a lovely bunch of people - Fully remote, full-time position - Based in the UK or EU If this sounds like...

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...

BRAND NEW ROLE - Senior Exec Level - Marine Geo Director of Business Development - Geotechnical Engineering & Geoscience Consulting About the Company Our client are a growing offshore geotechnical services and consulting unit, focused on delivering high-quality, technically robust solutions across the offshore, nearshore, and onshore environments. While offshore geotechnical investigations...

Job Title: Senior Business Development Manager – Sponsorship Sales (B2B Tech Events) Location: Remote (UK-based) with occasional team meet-ups Salary: £60,000 - £70,000 base DOE + uncapped commission (OTE £155k–£205k+) Job Type: Full-time, Permanent About Rela8 Group At Rela8 Group, we connect the world’s leading tech vendors with senior IT, Security, and Data decision-makers through...

Senior Business Development Manager – Fleet Mobility Solutions Provider £50,000 basic - £55,000 basic + £25,000 OTE Uncapped + EV Company Car If you’re ready to make an impact, this is the role that puts you in the driving seat. A competitive package, a premium company car, and the chance to join a private equity-backed business on a rapid growth trajectory. Expect pace, ambition, and the kind...

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,...

You will be a hands-on player-coach, owning outreach and qualification while also helping to design the BDR/SDR process, playbooks and best practices.

You will use modern tools (HubSpot, Clay, Instantly, Lemlist, etc.) and AI to build signal-based, multi-channel plays that generate qualified meetings and pipeline across both partners and direct prospects.

About Us: We’re an established and growing digital agency situated in the heart of Cardiff Bay looking to add a new Senior Laravel developer to our brilliant team. (UK based – Location Flexible) Whilst we are well known for our design skills and producing engaging commercial websites, we also spend a lot of our time building and maintaining bespoke online systems for some of the world’s biggest...

🚀 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...

Job Description Land & Business Development Manager - Location: Wales (hybrid working with travel) - Salary: Competitive salary + success-based bonus - Closing date: 9am, 2 February 2026 Make a difference with Tirion Tirion Homes is an independent, not-for-profit developer, property manager and regeneration specialist working across Wales. We partner with landowners, local authorities,...

The Opportunity: We’re hiring a Sales Development Representative to support continued growth across critical infrastructure and industrial markets. This role sits at the front of the revenue engine and plays a key part in introducing our cyber-physical security platform to organisations operating complex IT, OT, and IoT environments. You’ll engage senior security, engineering, and operations...

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 be responsible for identifying and managing new business opportunities with Tier 1 contractors, water utilities, and engineering firms, ensuring a robust pipeline for our innovative solutions.

You will move beyond simple lead generation, managing the entire journey from initial outreach to proposal support and closing contracts with key infrastructure players.

You will become a funding expert, able to talk to customers about different funding and incentives that are available to them. Your customers will trust your honesty and integrity and you will manage any customer you bring on, account managing them into the future.

You will deal with any matters arising and understand the ongoing need for training.

Job Description 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...

New Vision Display (NVD), a global manufacturer of small to mid-sized touchscreen display components for some of the world’s leading brands, is hiring a full time Sales & Business Development Manager (BDM) to drive business growth across Europe. Supply chain members or end customer markets could be located in Europe or elsewhere. NVD’s expertise includes passive and active-matrix liquid crystal...

Business Development Representative – UK Our client is a Series A AI company building a proactive, pre-crime fraud and scam prevention platform used by leading banks and financial institutions. Their technology identifies and prevents scams before transactions take place, sitting alongside existing fraud solutions rather than replacing them. They’re now looking for a UK-based BDR to drive...

Job Description About Us: We’re an established and growing digital agency situated in the heart of Cardiff Bay looking to add a new Senior Laravel developer to our brilliant team. (UK based – Location Flexible) Whilst we are well known for our design skills and producing engaging commercial websites, we also spend a lot of our time building and maintaining bespoke online systems for some of...