Principal Software Engineer- Safety Experience
- Location
- San Mateo, CA, United States
- Salary range
- USD $295,250 – $345,040 base
- Workplace
- In office
- Level
- Senior / Staff IC
- Job family
- Engineering
- Posted
- 2 weeks ago
The T&S Network estimates this role to be P4, Staff. The typical base salary for that level in Safety Engineering & Data Science is $220k to $290k at an employer this size in the San Francisco Bay Area. Key skills at this level: owns a detection system end to end, including its drift and its retraining, designs for adversarial pressure rather than for a static distribution, and sets evaluation methodology others in the company adopt.
Why this level
Estimated from the posting rather than stated by the employer: the posting states the level in its title · the title reads as P4 · asks for 8+ years · posts $295k to $345k base at a company of 500 to 5,000 in the San Francisco Bay Area.
The role, in T&S terms
Written by the T&S Network from Roblox's posting.
Engineering work on the Safety Experience team within Roblox's Trust & Safety organization, building agentic applications and technical solutions for customer-facing and internal safety use cases. The team builds the tools, data pipelines and audit trails behind moments like content ratings, Customer Care replies, account suspensions and account recovery, with a chatbot in scope.
What you'd do
- Build agentic systems that serve both players and internal teams.
- Track recent LLM developments and build chatbot features while optimizing for cost.
- Shape the team's roadmap and long-term strategy with product, operations and other cross-functional stakeholders.
- Provide technical leadership that influences decisions within and beyond the pod.
- Mentor junior engineers on technical skills and professional growth.
What it asks for
- Bachelor's degree in Computer Science or a related field and at least 8 years of hands-on experience.
- Proven experience developing solutions using LLMs.
- Extensive experience in modern languages such as C#, Java, Python or similar.
- In-depth knowledge of microservice architecture, RESTful APIs and RPC.
- Track record of end-to-end delivery on complex problems across multiple teams, from conception to launch.
- Graduate degree (preferred).
- LLM experience beyond the required baseline (preferred).
Our best summary of the posting, and it can be wrong. The employer's posting is what counts: read it in full on Roblox before you apply. If we got something wrong, report this listing.
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Still listed 14 hours ago
About Roblox

The employer
About Roblox
Gaming · Social platforms · San Mateo, CA · 1,001 to 5,000 people · Founded 2004
Platform where users build and play each others games, with a largely young player base.
Moderation, reported
Roblox filed 11.8M moderation decisions with the European Commission for May 2026.
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