.net developer architect jobs in Northern Ireland

MCS Group is delighted to be partnering with a leading Northern Ireland-based technology organisation to recruit a Principal Software Engineer at a pivotal time in their growth journey. This is an exciting opportunity to join a business that specialises in delivering complex, bespoke software solutions to both public- and private-sector clients. With a dynamic, forward-thinking culture, they're...

You will shape cloud architecture, modernise legacy platforms, and enable high performing, multi disciplinary teams to deliver long term, sustainable improvements across performance, reliability, and developer experience.

You will play a key role in influencing product direction, setting engineering standards, and guiding the evolution of core platforms.

We're representing one of our long-standing clients. It is an established global digital engineering organisation that is building and scaling an internal enterprise product used across multiple regions and teams. The platform underpins mission-critical workflows and is evolving to embed AI-driven capabilities, including prompt-engineered solutions that enhance productivity. This project will be...

.Net / Blazor Developer, Fully Remote, £60,000 - £85,000 per annum About the Role: Our client, a leading AI solutions consultancy are seeking a highly skilled Blazor Developer to join their team. As a Blazor Developer, you will play a critical role in creating and optimising web applications built on the Blazor framework. Your expertise in development will help their clients bring their...

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...

.NET Contractor - FinTech (multiple positions available!) Location: Remote (Northern Ireland) Contract: 12 months (extension likely) Overview We're hiring experienced .NET Contractors to support a large-scale FinTech transformation programme. This is a long-term opportunity working on high-volume, mission-critical systems within a regulated financial services environment. Responsibilities Build...

Gearset is the leading DevOps platform for Salesforce - our users can build and manage many aspects of their Salesforce development from within Gearset, from complex CI/CD pipelines to disaster recovery. The Gearset platform is a standalone tool that sits outside of the Salesforce platform, integrating via public APIs only. So while our engineering team doesn't develop within the Salesforce...

Company description We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over...

Senior .Net Developer Location: Belfast (Hybrid) | Type: Full-Time | Permanent A leading global technology firm is seeking a Senior Software Developer to help manage and evolve its mission-critical trading systems. This role involves building scalable systems that directly impact market access on a global scale. What you'll do? Develop, enhance, and maintain complex systems using C# (.NET Core),...

You will guide engineers of varying levels, influence technical direction, and ensure systems meet high standards for security, scalability, and reliability.

Senior Software Engineer (.NET) Back end Location: Belfast / Hybrid Eligibility: UK work authorisation required We are working with a global financial services technology organisation that builds business-critical platforms used across international markets. They're looking for a Senior Software Engineer to join a highly capable engineering team delivering scalable, cloud-native systems. This is...

MCS Group is delighted to be exclusively working with a leading digital company to recruit a Full Stack Developer based in Belfast (hybrid working). My client was founded over 20 years ago with a vision to create a platform that works simply and effectively to deliver the very best experience that works for your goals, organisation, and your learners. The Role - Develop end-to-end solutions...

You will influence architecture and delivery end-to-end, working closely with architects, senior engineers and business stakeholders across regions. The role combines hands-on technical leadership with ownership of delivery, mentoring engineers and championing modern engineering practices across distributed, cloud-native systems.

Senior .NET Developer Full-time | Belfast | Hybrid Salary: £50,000 - £65,000 MCS Group is delighted to once again partner exclusively with a growing solutions provider as they continue to expand their talented development team. This company delivers cutting-edge software solutions to a diverse range of clients across the UK and beyond. They are now seeking an experienced Senior Developer to take...

You will set technical direction, influence architecture, and lead engineering standards across complex Rates and FX platforms. This role suits someone who wants real impact, scale, and accountability, not just delivery. Working in an Agile environment, you will partner closely with architects, engineers, and stakeholders across regions to drive resilient, high-quality systems.

MCS Group is working with a fast-growing Insurtech company as they expand their software development team. We're looking for multiple .NET Developers to help deliver secure, scalable features across a growing suite of products. You'll join a tight-knit engineering team, working closely with the Software Engineering Manager and senior engineers. Expect to shape distributed systems, mentor junior...

Are you a Senior Back-End Engineer who likes owning problems end to end rather than just ticking off tickets? This is a long-term opportunity to join a team that values delivery, curiosity, and building things the right way. You'll be trusted to get on with the work, contribute to technical decisions, and play an active role in how the team operates day to day. You'll fit well here if you: Enjoy...

You will thrive here if you are: Open, honest, and collaborative - someone who brings energy and accountability to a shared goal. A proactive problem-solver with a strong attention to detail. Able to maintain a clear overview of complex systems while still delivering hands-on code.

MCS Group is working exclusively with an ambitious and rapidly scaling Insurtech company to hire an experienced .Net Web Developer as they continue to invest heavily in their digital platforms. This role sits at the heart of a growing engineering function responsible for designing and building complex, customer-facing web applications 'll be working on feature-rich websites and platforms built...

.Net Software Developers (Mid-Level) Location: Belfast (Hybrid) | Type: Full-Time | Permanent MCS Group is delighted to be working with a global market leader in financial services technology that is building one of the largest and most advanced engineering hubs in Belfast. MCS have helped this company hire over 150 people and they are a core delivery hub working on business-critical trading and...