> Markdown version of [/jobs/ext/3853588-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/3853588-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:** Roblox - **Location:** San Mateo, CA, United States - **Experience:** Expert - **Salary:** $295,250.0 - $345,040.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Distributed Systems, Open Source Technology, Information Technology, Roblox, Machine Learning Operations - **Published:** October 21, 2026 - **Apply:** https://careers.roblox.com/jobs/8292678?gh_jid=8292678 ## About the Role * 8+ years of working experience and experience in building, maintaining and evolving large scale distributed systems. * Demonstrated understanding of all the components that are required to build modern, large-scale infrastructures. * Ownership of end-to-end availability and performance of critical services to reduce operational overhead. * A love of learning, and a drive to pick up new technologies as the landscape evolves. Previous contributions to the Open Source Community is a big plus. * Passion about mentoring junior engineers, with the ability to earn their respect and help them stretch themselves to build great software and level up their technical knowledge. * You hold a BS in Computer Science or related fields; Masters degree or higher is a definite plus. ## Description * Work with our business partners to determine the vision and roadmap, and lead the project execution end-to-end. * Focus especially on novel solutions to monitor AI/ML systems, covering the full AI/ML lifecycle and ecosystem * Take full ownership of existing observability infrastructure systems, making sure they are scalable, reliable and easy to use, and meanwhile improve the existing infrastructures with new features and functionality. * Follow and expand our vision to put the Roblox community first and get things done. * Take the long view to architect our next generation observability platform, ingesting PBs of log and tracing data everyday. * You will report to the Engineering Manager for Observability. * This is a Hybrid role located in our San Mateo headquarters. You are required to be in the office at HQ 3 days a week (Tues-Thurs). #LI-Hybrid