Sr. Machine Learning Engineer

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Careers

Making AI Safe to Ship

Real stakes. Real-world impact.
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The Hardest Problems Emerge at the Edge of AI

The most interesting, and messiest, problems show up at the edges.

Gray Swan has made a habit of being first in line. We’re often the first to spot new failure modes, and, by extension, the first to defend against them. Being research-first isn’t a tagline. It’s how we build our products, our playbooks, and our culture of thinking three steps ahead.

Whether it’s stress-testing the latest agentic AI in a lab or helping enterprises deploy at full speed, our goal is the same: uncover the hard problems before anyone else does, then turn that insight into real-world solutions that let innovation happen, safely and without slowing down.

Trusted at the Frontier

Our research has directly informed the safety evaluations of some of the most advanced AI models in the world.

o1

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o3 mini

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GPT 5

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Opus 4.6

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Haiku 4.5

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Sonnet 4.6

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Small Team. Outsized Impact.

As a Swan, individual work matters, immediately.
View open positionsModel MetricsPricing
Your work helps shape how AI is deployed, evaluated, and trusted; from enterprises shipping to production, to researchers pushing new capabilities, to organizations responsible for safety at scale.

This is work with real consequences. Looking for a place where your thinking carries weight and where progress is measured in outcomes, not meetings? You’ll find it here.

Support That Lets You Do Your Best Work

Our benefits are designed to support real life, sustained curiosity, and the kind of deep work that meaningful impact requires.

• 28 days of annual leave: Time off that actually feels like time off.
• 401(k) with up to 4% matching: We invest in the long term; yours included.
• Flexible work arrangements: We care about outcomes, not where your laptop happens to be.
• Professional development support: Learning isn’t optional here. We make room for it.
• Medical, dental, and vision coverage: Comprehensive coverage, because your health isn’t a side project.
• Catered lunches (Pittsburgh office): Good food, fewer decisions, better afternoons.
• Visa sponsorship: Great work knows no borders. We’ll help with the paperwork.
• Short-term disability & parental support: 100% paid, including parental leave, with up to 14 weeks of paid birthing leave. So you can focus on what matters most.

Do the Work That Matters

If you’re excited by meaningful problems, real responsibility, and work that shows up in the world, you’ll fit right in. Take a look at our open roles below.

Don’t see the role you’re looking for?

Join our Talent Newsletter and get notified about new roles.

Join the Arena

Careers

Making AI Safe to Ship

Real stakes. Real-world impact.
View open positionsModel MetricsPricing

The Hardest Problems Emerge at the Edge of AI

The most interesting, and messiest, problems show up at the edges.

Gray Swan has made a habit of being first in line. We’re often the first to spot new failure modes, and, by extension, the first to defend against them. Being research-first isn’t a tagline. It’s how we build our products, our playbooks, and our culture of thinking three steps ahead.

Whether it’s stress-testing the latest agentic AI in a lab or helping enterprises deploy at full speed, our goal is the same: uncover the hard problems before anyone else does, then turn that insight into real-world solutions that let innovation happen, safely and without slowing down.

Trusted at the Frontier

Our research has directly informed the safety evaluations of some of the most advanced AI models in the world.

o1

View the Model Card

o3 mini

View the Model Card

GPT 5

View the Model Card

Opus 4.6

View the Model Card

Haiku 4.5

View the Model Card

Sonnet 4.6

View the Model Card

Small Team. Outsized Impact.

As a Swan, individual work matters, immediately.
View open positionsModel MetricsPricing
Your work helps shape how AI is deployed, evaluated, and trusted; from enterprises shipping to production, to researchers pushing new capabilities, to organizations responsible for safety at scale.

This is work with real consequences. Looking for a place where your thinking carries weight and where progress is measured in outcomes, not meetings? You’ll find it here.

Support That Lets You Do Your Best Work

Our benefits are designed to support real life, sustained curiosity, and the kind of deep work that meaningful impact requires.

• 28 days of annual leave: Time off that actually feels like time off.
• 401(k) with up to 4% matching: We invest in the long term; yours included.
• Flexible work arrangements: We care about outcomes, not where your laptop happens to be.
• Professional development support: Learning isn’t optional here. We make room for it.
• Medical, dental, and vision coverage: Comprehensive coverage, because your health isn’t a side project.
• Catered lunches (Pittsburgh office): Good food, fewer decisions, better afternoons.
• Visa sponsorship: Great work knows no borders. We’ll help with the paperwork.
• Short-term disability & parental support: 100% paid, including parental leave, with up to 14 weeks of paid birthing leave. So you can focus on what matters most.

Do the Work That Matters

If you’re excited by meaningful problems, real responsibility, and work that shows up in the world, you’ll fit right in. Take a look at our open roles below.

Don’t see the role you’re looking for?

Join our Talent Newsletter and get notified about new roles.

Gray Swan is an AI security company that develops tools that automatically assess the risks of AI models.