AI Safety Engineer

Hark • San Jose, CA

63d • $150,000 - $300,000 • Remote

About The Position

We're hiring a Member of Technical Staff (Safety Generalist) to join our Safety team. This is a build-and-operate role: you'll design and ship classifiers, pipelines, and tooling that detect and respond to harmful content and behavior on the platform — and then own those systems in production. You'll work closely with engineering, policy, and leadership to define what "safe" looks like at Hark and build the infrastructure to enforce it. This is not a pure ML role and not a pure ops role. We're looking for someone who can do both.

Requirements

• 3–7 years of experience in trust & safety, content moderation, or a closely related field.
• Hands-on experience building and shipping ML classifiers or detection systems (not just running them).
• Comfort operating production systems — you've held a pager, triaged incidents, and shipped fixes under pressure.
• Strong problem-solving instincts and the ability to work across ambiguous, high-stakes problems.
• Genuine motivation to work on safety problems — you care about why this work matters.

Nice To Haves

• Experience at a T&S-focused company (Cinder, Hive AI, Thorn, Modulate, Discord Safety, etc.).
• Familiarity with multimodal content (text, voice, image) moderation.
• Background in CSAM detection, integrity engineering, or platform abuse.

Responsibilities

• Design, train, and ship content moderation classifiers and detection pipelines.
• Own safety systems end-to-end: from model development through production monitoring and incident response.
• Investigate abuse patterns and translate findings into durable technical mitigations.
• Partner with policy and legal to operationalize safety standards into scalable systems.
• Contribute to the safety roadmap and help define what we build next.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed