Job brief: Senior Software Engineer- User Behavior

What JoRoute checked · Checked by JoRoute

• Listed on Roblox's own job board. JoRoute does not take listings from job ads or recruiters.
• First seen by JoRoute 2026-11-06 (today); last confirmed on the board 2026-11-06.
• The apply link opens careers.roblox.com, the address Roblox's board gives for this job.
• The same title for the same place was listed 1 other time on this board in the last 90 days: several openings, or a re-posted job.
• No layoff notices (WARN) under this name in the state files JoRoute reads.

What the listing says · Employer's own words, not checked

• Pay: $196,750 to $243,290 a year
• Job type: Not stated
• Where: San Mateo, CA, United States · San Mateo, CA
• Posted: 2026-11-05

What the job asks · Employer's own words, not checked

Level: Senior. The title says "Senior".

Conditions

• You will build the backend systems that fundamentally shift how Roblox responds to unsafe behavior - from reactive, stateless punishment to a personalized, adaptive system that re…

Main duties

• Build the User Behavior Foundation: Design and operate the low-latency, per-user behavioral data layer that powers real-time safety decisions - aggregating s…
• Own the Consequence Engine: Build and evolve the centralized decision engine that combines deterministic rules with ML risk signals into a single, consistent…
• Own the Feature Restriction Platform: Build a unified, backend-driven framework for delivering safety interventions that any product team can plug into, repl…
• Unify Abuse Reporting: Build the backend that consolidates reporting channels into a single, scalable framework - integrating LLM-based classification, agent…
• Design for trust and auditability: Build serving infrastructure that meets a high bar for explainability and fairness, since these systems directly determine…

Lines copied from the posting, not rewritten. "Preferred" or "nice to have" items are not listed as must-haves.

How it compares · Compared by JoRoute from listings

• Typical listed pay for software engineer jobs in San Mateo, CA: $257k a year (150 listings, 2 employers). This listing is 14% lower.
• Across Roblox's 253 open listings, 42% of those with a posting date were first posted more than 60 days ago. How Roblox hires

What nobody outside the employer knows · Not known

• Whether the role is already filled or on hold: employers often leave listings up.
• How many people applied, and who reads the applications.
• Where in the published range an offer would land.

Ask before you apply

1. How many people are you hiring for this role, and is it a new opening or a re-posted one?
2. Which of the listed places is this role based in?
3. What are the interview steps, and when should I expect to hear back?

Share this brief

Send it to someone whose opinion you trust. They can open it without an account, and nothing about you is in the link.

Email itText it

To keep a copy, use your browser's Print or Share button.

Next steps

Apply on the employer's page Full listingDoes my CV fit?Practise the interviewShould I apply?

Got a message about this job asking for money or documents? Check the message first.

Keep looking

• 1,010 more software engineer jobs within 25 miles, on the job map with pay.
• All 253 open Roblox jobs, and how Roblox hires.
• Saw a job somewhere else? Check if the employer still lists it.
• Search every job JoRoute reads from employers' own job boards. No account needed.