Full-Time

Principal Machine Learning Engineer

Content Safety

Updated on 1/11/2025

Roblox

Roblox

5,001-10,000 employees

Virtual platform for user-generated experiences

Consumer Software
Entertainment
Gaming

Compensation Overview

$283.8k - $331.6kAnnually

+ Equity Compensation

Senior

San Mateo, CA, USA

In-office required Tuesday, Wednesday, Thursday; optional on Monday and Friday.

Category
Applied Machine Learning
Natural Language Processing (NLP)
AI & Machine Learning
Requirements
  • 5+ years of experience building and shipping large-scale ML systems (or parts of these systems) to production
  • 5+ years of experience working on multi-person codebases, including open-source or personal projects
  • Passion for delivering products end-to-end, from ideation through implementation, with laser focus on the end goal while being empathetic with cross-functional stakeholders.
Responsibilities
  • Build end-to-end ML systems to detect and address problematic content on Roblox
  • Develop new detection approaches in a rapidly evolving landscape. Use a data-driven lens to think creatively, strategically, and adversarially to identify opportunities.
  • Help define the team's roadmap and technical foundations, and drive execution. Be a technical leader for the team and mentor junior engineers.
  • Partner with Moderation Operations, PM, Data, and stakeholders across Roblox.
Desired Qualifications
  • Resourceful: You're adaptable in any situation and can always find a path forward.
  • Analytical: Excited to investigate large, ambiguous problems, and quantify the problems and the solutions.
  • User Oriented: You always start with the needs of the user, whether they are Roblox users or internal engineers before architecting a solution.
  • Team Oriented: You lift up your peers and find ways to make the team stronger. You are a sought-after mentor. You foster a culture of technical excellence.
  • Mission Oriented: You stay laser-focused on the mission and are versatile, creative, and strategic to achieve it. You think long-term, and find ways to deliver short-term value on the way to get there.

Roblox operates a virtual platform where users can learn, work, play, and socialize. The platform is built around a community of developers and creators who use Roblox Studio, a user-friendly design tool, to create engaging multiplayer experiences. It primarily targets audiences under the age of 18, making it one of the leading entertainment platforms for this age group, as shown by its high monthly visits and user engagement. Unlike many other platforms, Roblox focuses on user-generated content, allowing millions of new users to join each month, often through recommendations from friends. The company generates revenue through in-platform purchases and subscriptions, creating a thriving ecosystem for both users and creators.

Company Stage

IPO

Total Funding

$897.6M

Headquarters

San Mateo, California

Founded

2004

Growth & Insights
Headcount

6 month growth

0%

1 year growth

-1%

2 year growth

0%
Simplify Jobs

Simplify's Take

What believers are saying

  • Roblox's partnerships with media franchises attract new users and enhance platform engagement.
  • Offering 25% more currency for web purchases boosts direct sales and profitability.
  • Strong investor confidence is evident from significant investments by major financial entities.

What critics are saying

  • Competition from Minecraft and Fortnite could impact Roblox's user engagement.
  • Bypassing app store fees may strain relationships with Apple and Google.
  • Transmedia experiences may face challenges if licensing or content quality issues arise.

What makes Roblox unique

  • Roblox offers a unique platform for user-generated 3D experiences and social interaction.
  • The platform's focus on under-18 users sets it apart in the gaming industry.
  • Roblox Studio empowers developers with intuitive tools for creating immersive multiplayer experiences.

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Benefits

Benefits and Perks - The health and well-being of our employees and their families is our top priority. We offer robust and comprehensive programs with variety to best meet your needs.

Well-Being Benefits - With flexible time off and a bi-annual, company-wide spring/summer recharge, Roblox knows how to balance working hard with winding down.

Financial Benefits - Competitive compensation packages, 401(k) matching, and flexible share incentives that let you choose how to share in our success.

Health and Wellness - Comprehensive medical, dental, and vision benefits, family planning resources, and 12 weeks off for all new parents.

Flexible Workplace - Our hybrid work schedule balances working onsite and working remotely. Enjoy daily lunch and an in-house fitness center when working from our San Mateo headquarters.