principal .net engineer jobs in Belfast

MCS Group is delighted to be working with a well-established, Belfast based financial services organisation as they look to appoint an IT Development Lead to head up their in-house development function. This role will be based in Belfast, allowing for hybrid working (flexible 2 in offfice, 3 from home) after an initial training period. This is a key leadership role within the wider technology...

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...

As a product-driven company founded by engineers, we know the value of a great engineering culture, and we're looking for a Principal DevOps Engineer to join a team built from the ground up on trust, teamwork and tight feedback loops. As a Principal DevOps Engineer you'll work collaboratively using a pragmatically-chosen modern tech stack (Kubernetes, AWS, Terraform, .NET) to help Gearset run a...

Your new company Are you ready to take a key role in shaping critical water infrastructure projects across the UK? This is your opportunity to join a global leader in design, engineering, and project management - a company that delivers innovative solutions to create sustainable communities and resilient infrastructure worldwide. Your new role As a Principal Mechanical Engineer, you'll lead...

You will join a collaborative and fast-paced organisation delivering integrated solutions for public- and private-sector clients.

You will also contribute to pre-sales, produce proof-of-concepts, and guide clients through digital transformation initiatives.

You will be joining an established team of Ground Engineers within the Scotland and Ireland region, will be based in the AECOM Belfast Office and will work closely with colleagues across the UK & Ireland.

You will have the flexibility you need to do your best work with hybrid work options.

Reposted 2 Days Ago Be an Early Applicant Belfast, County Antrim, Northern Ireland Belfast, County Antrim, Northern IrelandAs a Principal Mechanical Engineer, lead technical design work on projects, manage budgets, collaborate with teams, and ensure high-quality standards in mechanical design across various summary above was generated by AI Shape the Future of our cities and environments. Are...

You will be offered; - Highly competitive salary, negotiable depending on experience.

You will work closely with the new Associate Director and the wider team across the UK to deliver technical solutions on a range of complex projects.

You will be able to evolve and grow your competencies in different areas: - Room and attention to personal development Build your talents in another domain of Thales Group, discovering new products, new customers, new country or go to a more complex Solution Choose between a technical expertise or a leadership path

You will play a critical role in architecting, designing, and implementing these platforms to solve challenging business problems. Your expertise will be essential in guiding clients through digital transformation initiatives, ensuring robust and scalable solutions that align with their strategic objectives.

You will work closely with Senior, Staff and Principal Engineers across Belfast and the wider global engineering organisation, contributing to large scale distributed systems while acting as a technical authority within the team. This role offers a strong mix of hands-on development, architectural decision making and mentorship.

Principal Clean Water Process Engineer Full time 2026-01-28 Posted Today R-147472 Job Description Overview Shape the Future of our cities and environments. Are you a Clean Water Process Engineer who is passionate about making the world a better place? Are you ready to take up a vital role in some of the UK's most exciting and innovative projects? Join AtkinsRéalis and take a leading role...

You will architect, design, and implement robust, scalable platforms that drive digital transformation and align with strategic objectives. What You Need to Succeed : - Proven experience delivering solutions in Microsoft Dynamics 365 - Strong knowledge of Microsoft SharePoint Online and Power Platform

You will have the flexibility you need to do your best work with hybrid work options.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

You will have the flexibility you need to do your best work with hybrid work options.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

Principal Waste Water Process Engineer Full time 2026-01-26 Posted Today R-147229 Job Description Overview Shape the Future of our cities and environments. Are you a Waste Water Process Engineer who is passionate about making the world a better place? Are you ready to take up a vital role in some of the UK's most exciting and innovative projects? Join AtkinsRéalis and take a leading role...

Your new company Are you ready to take a key role in shaping critical water infrastructure projects across the UK? This is your opportunity to join a global leader in design, engineering, and project management - a company that delivers innovative solutions to create sustainable communities and resilient infrastructure worldwide. Your new role As a Principal Mechanical Engineer, you'll lead...

You will have the flexibility you need to do your best work with hybrid work options.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

Your new company Are you ready to take a key role in shaping critical water infrastructure projects across the UK? This is your opportunity to join a global leader in design, engineering, and project management - a company that delivers innovative solutions to create sustainable communities and resilient infrastructure worldwide. Your new role As a Principal Electrical Engineer, you'll lead...

Senior/Principal Civil Water Engineer Full time 2026-01-26 Posted Today R-147187 Job Description Overview Shape the future of our cities and environments. Are you a Civil Water Engineer who is passionate about making the world a better place?Are you ready to take up a vital role in some of the UK's most exciting and innovative projects? Join AtkinsRéalis and take a leading role in...