> Markdown version of [/jobs/ext/3905393-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/3905393-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** Microsoft - **Location:** UK - **Experience:** Expert - **Salary:** £59,397.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Artificial Intelligence, Software Debugging, Web Development, Distributed Systems, Software Engineering, Deep Learning, Backend, Information Technology, Low Latency - **Published:** October 25, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5210483199 ## About the Role * Drive thought leadership, architecture and design for high scale services * Qualified candidates are engineers with a passion for designing, owning, and shipping software, as well as excellent communication and collaboration skills. * You should have a solid understanding of the software development cycle, from architecture to testing. You'll use data and experiments to inform decisions and validate conclusions. You'll have a passion for quality and be a creative thinker. * You'll write secure, reliable, scalable, and maintainable code, and then effectively debug it, test it, and support it. * Creating and sustaining an effective team culture is extremely important to us. We value and promote a high trust environment where we work closely and effectively with others. * We emphasize a culture of continuous learning and so having a growth mindset and passion for learning is important. You should expect that your teammates will be invested in helping make you successful and expect the same in return from you. We recognize and celebrate the uniqueness of each person on the team and leverage our diversity to create more inclusive products for our customers. Qualifications The ideal candidate would have: * 10 years of professional experience designing, developing, testing, and shipping software. * Experience in low latency and highly scalable services * Experience in Web development * Proficiency in highly scalable services and backend design and architecture * Strong communication and collaboration skills. * Experience in distributed computing and a great team player * BS in computer science, or equivalent in related technical experience. If you're excited about the v1 journey, creating something new, working on cutting-edge technology, working closely with AI scientists on the frontier of deep learning, on planet-scale services to bring this functionality to the hundreds of millions of M365 users across the globe, we are looking for you!