Principal Software Engineer .NET

Join MHR as a Principal Software Engineer, leading complex engineering challenges that shape our products and technical direction. In this role, you will operate across the organisation-defining strategy, influencing architecture, and guiding delivery within a modern SaaS environment. Drawing on experience with Microsoft technologies such as .NET and Azure, you'll apply modern programming practices including cloud native design, distributed systems, and test driven development.

You will also champion AI assisted development to improve engineering efficiency, quality, and innovation. This is a high impact position combining hands on expertise with technical leadership and mentoring.

You'll work across cross functional Agile teams, partnering closely with engineers, architects, and stakeholders. Through influence rather than authority, you'll help align teams and foster a collaborative, inclusive culture focused on continuous improvement.

This role will see you defining and executing technical strategy, shaping scalable, resilient architecture aligned with business goals. You'll drive engineering excellence through best practice-embedding test driven development and using AI assisted tooling to enhance delivery. Working across teams, you'll help align priorities, mitigate risks, and ensure consistent, high quality outcomes, while mentoring engineers to strengthen capability. As a trusted technical leader, you'll balance long term vision with delivery outcomes.

• Strong experience with Microsoft technologies (.NET, Azure) and modern engineering practices
• Expertise in scalable architecture and cloud native systems
• Proven ability to deliver technical strategy and complex initiatives
• Advocate of TDD, continuous improvement, and AI assisted engineering
• Strong collaboration and stakeholder communication skills
• Experience mentoring engineers and raising technical standards

• Access to over 60 internal training courses, professional qualifications, and cross departmental mentoring and coaching programs
• 24/7 access to a GP through Help at Hand for you and your family, confidential mental health support, and paid sick leave
• Ability to purchase or sell additional holiday days beyond 25 days and bank holidays
• Enhanced family leave
• My MHRewards offering discounts at over 900 retailers
• Monthly employee recognition program and departmental awards
• Referral bonus scheme of up to £2,000
• Employee led social events such as running clubs, football teams, book clubs, and bake offs
• On site subsidised restaurants offering a variety of fresh meals daily
• Opt in benefits schemes such as private medical insurance and dental coverage

We value the well being, financial stability, and inclusivity of our employees, and strive to provide a supportive working environment. Wherever your background, abilities, and experiences, we welcome you to apply.