Fluidstack
Cloud Infrastructure & DevToolsDirect Ashby career site

Lead Incident Responder

Location
San Francisco, CA (Remote) · On-site
Job type
Full-time
Level
Lead / Staff
Listed
30 days ago

Skills & highlights for this role

  • incident response
  • on-call program design
  • threat actor investigation

Also useful

  • FedRAMP
  • SEC incident reporting
  • OT/ICS security

Stated benefits & perks

  • Health
  • Dental
  • Vision
  • Retirement
  • Pto

How We Operate

  • Be a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.
  • Insane urgency. We drive everything forward as fast as possible.
  • Reason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.
  • Love of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.
  • Build something that actually matters. If you're going to spend your time, spend it on something that matters to the world.

Examples of key problems the team is working on

  • You're securing the frontier of AI. The model weights training on our infrastructure are the most valuable and most targeted artifacts in technology, and we're standing up the compute to hold them faster than anyone ever has. A breach isn't a leak, it's the frontier walking out the door.
  • Build the entire security program from scratch. Most leaders inherit someone else's system and spend a career patching it. Here you own it end to end, bare metal to boardroom, as we scale across continents.
  • Your threat surface is measured in gigawatts. The customers running on our infrastructure are building the most consequential technology in human history, and being responsible for the physical and logical security of that work makes everything else feel small.

Role Scope

  • Lead incidents as a senior incident commander in the on-call rotation, and serve as the escalation backstop when a case rises above the responders on call.
  • Own the 24/7 coverage model, rotation discipline, and response SLAs for your US region, keeping the program humane and the bar high at the same time.
  • Build and develop a team of senior incident responders, setting the on-call expectations and quality bar they operate to.
  • Drive executive, legal, and customer communications during declared incidents, including regulated reporting and disclosure timelines.
  • Own the joint operating relationship with Physical Security and Data Center Operations for incidents that cross cyber, physical, and OT surfaces.
  • Run the post-incident review cadence and drive remediation to completion across detection, response, and infrastructure.
  • Hold the bar on the agentic triage layer, defining what the agent escalates and feeding incident learnings back to detection engineering and threat intelligence.

What We're Looking for

The below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would

  • You've led material incidents end to end as a senior incident commander at organizations with sophisticated, well-resourced threat actors.
  • You've managed and grown a team of senior responders while staying in the on-call rotation yourself.
  • You've designed or run a 24/7 on-call program: coverage models, rotation discipline, acknowledgement and response SLAs, and escalation chains.
  • You move between technical containment and executive, legal, or customer-facing communications during a declared incident without losing the thread.
  • You've made disclosure-grade calls under regulatory and customer reporting clocks.
  • You've built operating relationships across security, infrastructure, and physical or facilities teams, and led incidents that crossed those boundaries.
  • You have well-founded opinions on what makes an on-call program humane and an incident response process effective, and you're ready to build one from a small senior core.
  • Bonus: Incident response bridging cyber, physical, and OT or ICS surfaces. Experience at critical-infrastructure operators, data centers, or 24/7 high-availability environments. Standing up or scaling an IR team and on-call program from scratch. Operating under FedRAMP, SEC, or similar regulated incident-reporting regimes. Agent-augmented IR, including triage, investigation, or response automation.

Salary & Benefits

  • Competitive total compensation package (salary + equity)
  • Retirement or pension plan, in line with local norms
  • Health, dental, and vision insurance
  • Generous PTO policy, in line with local norms
  • Total compensation may also include equity in the form of restricted stock units.
  • We are committed to pay equity and transparency.

You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.

About Fluidstack

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.

We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.

We hire people who care deeply about this problem space. If that is you, please apply!

Read the original posting

From Fluidstack's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Lead Incident Responder role at Fluidstack, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Common questions

Where is the Lead Incident Responder job at Fluidstack located?

Yes, this Lead Incident Responder opening at Fluidstack is listed as San Francisco, CA (Remote) (On-site). Always check Fluidstack's application page for specific state eligibility or relocation policies.

What qualifications are required for Lead Incident Responder at Fluidstack?

For the Lead Incident Responder role, Fluidstack highlights experience with incident response, on-call program design, threat actor investigation. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Lead Incident Responder position at Fluidstack?

This listing links directly to Fluidstack's Ashby application page. You can apply directly on Fluidstack's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.