Greenhouse ·
full-timePrincipal Software Engineer
Roblox · San Mateo, CA, United States
Roblox operates a global platform for 3D immersive digital experiences, focusing on tools that enable creators to build and connect in shared virtual spaces. As a Principal Software Engineer within the Observability team, you will lead the architecture and execution of systems responsible for telemetry, distributed tracing, and logging at a massive scale. A primary focus of this role involves developing novel monitoring solutions for AI and machine learning systems throughout their entire lifecycle. You will take ownership of existing infrastructure to ensure reliability and scalability while designing the next generation of the observability platform to handle petabytes of daily data. This role requires extensive experience with large-scale distributed systems and a commitment to mentoring junior engineers. It is suited for a seasoned technical leader who can bridge the gap between high-level business strategy and hands-on infrastructure development. You will work in a hybrid capacity at the San Mateo headquarters, collaborating with cross-functional partners to maintain the performance and availability of critical services that support the broader platform ecosystem.
Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. The Observability team owns the entire stack of Telemetry, Distributed Tracing, and Logs, including instrumentation libraries, data processing pipelines, data storage, and the visualization UI. We provide the vital signs for our software components that subtend to our platform. We believe in user-centric strategy, and we are focused on making an impact for all the teams we support. As a Principal Software Engineer in the Observability team, You will: 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 You Have: 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. For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page . Annual Salary Range $295,250 — $345,040 USD Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted). Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process. For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.
| Role | Principal Software Engineer |
|---|---|
| Company | Roblox |
| Location | San Mateo, CA, United States |
| Type | full-time |
| Compensation | Not disclosed |
| Posted | 2026-10-22 |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
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