Senior Director of Engineering, Generative AI

Roblox, San Mateo, CA

The role

Roblox Build is our generative creation product, the platform where creators design, build, and publish 3D experiences. We are looking for a Senior Director of Generative AI to lead the Applied AI organization inside Build, responsible for turning state-of-the-art foundation models into high-quality, reliable creation systems at Roblox scale. This leader will own the full applied AI stack: model strategy and routing, model adaptation and fine-tuning, code generation (CodeGen), 3D layout generation (LayoutGen), and the evaluation science and infrastructure that tells us what actually works.

Posted pay

$526K–$574K

a year

Compared with similar jobs

This base pay is above the median for director-level software engineering jobs in the Bay Area.

Median: $289K a year
Other jobs in the group: 160

We compare the middle of each posted range. This is base pay as posted. The group does not include this job.

Location

San Mateo, CA

Work type

Not given

Level

Director+, manager

Experience

10+ years

Posted

Aug 18, 2026

Last check

6 h ago

Job type

Software engineering, Inference & ML systems, ML / AI engineering

The role

What you need

You Have

10+ years of experience in machine learning and AI, with 5+ years in senior technical leadership roles overseeing applied AI or ML engineering organizations that have shipped generative AI systems into production at scale.
Deep technical grounding across multiple areas of applied AI, including LLM post-training (RLHF, DPO, distillation), model routing and adaptation, agentic systems, code generation, or evaluation science, with enough depth to recruit, challenge, and lead exceptional scientists and engineers in each area.
Demonstrated experience building and leading high-performing organizations that span both AI research scientists and production engineers, including hiring, developing talent, and making difficult personnel decisions.
Strong evaluation fluency, with a track record of building eval frameworks that predict production outcomes, designing benchmarks that measure what matters, and building the infrastructure to run experiments continuously at model, prompt, and routing level.
Experience operating cross-functionally in complex technical organizations, with the ability to influence and align across research, product engineering, and platform teams without relying on hierarchy.
Genuine interest in the creation problem. You find the specific challenge of AI-assisted 3D world creation and domain-specific code generation compelling, not just as a vehicle for building AI systems.

You Are

A builder and a shipper who cares about getting things into production and measuring whether they actually work, not just publishing promising results.
Technically credible across the stack. You can engage deeply with scientists on evaluation methodology, data quality, and model behavior, and equally deeply with engineers on architecture, inference latency, and reliability.
Decisive under ambiguity. You make principled tradeoffs between rigor and velocity, know when good enough is good enough, and can articulate your reasoning clearly.
Direct and honest. You give clear feedback, surface problems early, and create an environment where your team can do the same.
Mission-driven. You care about the people building on Roblox, and you connect the technical work of the Applied AI org to the experience of the millions of creators using the tools.

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.

Senior Director of Engineering, Generative AI

The role

Senior Director of Engineering, Generative AI

The role

What you will do

What you need

You Have

You Are

Annual Salary Range

About Roblox

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Company facts

Interview questions

Roblox

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