Technical Director, Machine Learning - Safety

As a Technical Director in the Safety organization at Roblox, you will drive the overall technical vision and execution for all machine learning initiatives focused on maintaining the safety and civility of our users. Our industry-leading safety features ensure Roblox remains a safe and inclusive environment for our community to express themselves creatively and share experiences without fear. The Safety org is the reason why Roblox is the safest place on the internet, protecting users from a content-focused perspective as the platform scales to serve different age groups and geographic locations. You will report to the Senior Director of Trust and Safety.

You Will:

• Own the technical direction and implementation of machine learning solutions for safety-related systems
• Lead and mentor other engineers, fostering a culture of technical excellence and inclusivity
• Break down long-term product requirements into iterative deliverable stages, ensuring continuous improvement
• Craft and build large-scale machine learning models with billions of parameters, ensuring production-readiness
• Facilitate challenging technical decisions across multiple teams, demonstrating empathy and finding common understanding
• Collaborate with cross-functional teams to define and prioritize the machine learning roadmap

You Have:

• 15+ years of experience delivering and improving large-scale machine learning systems
• Proven expertise in creating and launching machine learning models from scratch
• Ability to handle data problems, train models with large datasets, and ensure system reliability at scale
• Experience with distributed systems, data architecture, and model extraction
• Strong programming skills and willingness to be hands-on as necessary
• Prior experience in a leadership role with a technical focus, including mentoring engineering teams

You Are: 

• A creative and strategic problem-solver, able to simplify complex issues while integrating fresh ideas
• Committed to fostering a diverse and inclusive workplace where everyone feels valued and supported
• Passionate about maintaining deep technical expertise while meeting end-user needs
• Knowledgeable about cutting-edge ML technologies, including LLMs
• Experienced in NLP or computer vision (preferred)
• Familiar with maintaining and evolving safety systems at scale (preferred