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Open nowPosted 640 days ago

Infrastructure Security Lead

Together AI78 open roles

Pay
$200,000 – $300,000 a year
Where
San Francisco
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Your applicationOpen nowInfrastructure Security LeadTogether AI · San Francisco

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on Together AI's own form.

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The clock on this job

Early applications get read.

14.0% of postings close within 7 days. Measured by our own scanner across the market. Together AI postings stay open a median of 49 days.

Share of postings closed within
  1. 2.3%1 day
  2. 4.7%3 days
  3. 14.0%7 days
  4. 22.5%14 days
  5. 38.3%30 days
  6. 59.0%60 days
This job: posted 640 days ago

Together AI median: 49 days open

The posting

About Together AI

Together AI is a research-driven AI infrastructure company building the go-to platform for developers to run, fine-tune, and build on open models. We believe open and transparent AI systems drive innovation and create the best outcomes for society, and we're on a mission to dramatically lower the cost of modern AI systems. Our team has helped ship foundational open-source research like FlashAttention, FlexGen, and RedPajama — and we're building the next generation of AI infrastructure.

About the Role

We're looking for a hands-on security leader to own infrastructure security.

You'll be the technical owner of how we keep our systems secure, building internal security tooling, deepening our detection and telemetry, and hardening our global infrastructure against threats that range from opportunistic attackers to sophisticated nation-state actors.

You'll report directly to our SVP of Engineering and help define infrastructure security. Over time, you'll grow the team, set the standards, and increasingly shape how we secure the systems at the heart of modern AI: training clusters, GPU fleets, model artifacts, and inference.

Responsibilities

  • Own infrastructure security for Together AI's globally distributed systems — hands-on, as the technical leader of the function.
  • Build and lead the infrastructure security team, defining what great looks like and attracting engineers who want to build with you.
  • Partner with engineering and infrastructure teams to harden global systems — shipping security as something that speeds engineering up, not slows it down.
  • Develop and implement internal security tooling that addresses security challenges at scale.
  • Deepen our security telemetry and detection — gathering system telemetry and improving detection of and response to potential security events.
  • Identify and remediate vulnerabilities across our engineering systems, including authenticated vulnerability scanning of distributed systems.
  • Grow into securing the AI-specific surface — training clusters, GPU fleets, model artifacts, and inference endpoints — as the threat landscape evolves.

Requirements

  • Hands-on security leadership — you can lead a team and stay deep in the technical work. You lead by building, not just by delegating.
  • Strong systems and cloud-native software engineering experience, with deep proficiency in Linux configuration, security, and administration.
  • Fluency with automation and infrastructure-as-code (Terraform, Ansible, and/or Salt) to solve security problems at scale.
  • A pragmatic security instinct — you treat security as an enabler, make sound risk calls, and help the team ship safely and fast rather than piling on friction.
  • Experience with security telemetry and detection (e.g. OSQuery, Falco, SIEM) and with finding and fixing vulnerabilities in distributed systems.
  • Curiosity about how AI changes the security landscape — you don't need to be an AI-security expert today, but you're the kind of engineer who becomes one.
  • Bonus: Go or Rust development, cloud-native service experience (AWS, GCP), deep Linux/networking fundamentals, OCP familiarity (OpenBMC, Coreboot, Linuxboot), or a public security-practitioner footprint (talks, OSS, writing).

Compensation

We offer competitive compensation, startup equity, health insurance and other competitive benefits. The US base salary range for this full-time position is: $200k - 300k+ equity + benefits. Our salary ranges are determined by location, level and role. Individual compensation will be determined by experience, skills, and job-related knowledge.

Equal Opportunity

Together AI is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.

Please see our privacy policy at https://www.together.ai/privacy

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