Pushes the frontier of LLMs and AI agents through novel datasets and experimentation; builds infrastructure powering frontier data creation for agentic and hard-reasoning workflows for leading AI labs and YC companies.
Comp: $200K-$350K base (depends on experience) + $250K-$500K (4-year vesting) equity. Visa: Open to visa transfers (e.g. OPT, H1B transfers). Policy: On-site, 5 days in-office in San Francisco.
Own and build AfterQuery's security posture from the ground up while contributing to core infrastructure; protect highly sensitive AI training data and workflows across integrations with leading model labs. Founding-level role.
What you'll do
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Design and implement security infrastructure across cloud/production (GCP/AWS); build the 30/60/90 day plan from scratch
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Build programmatic, scalable solutions replacing manual security workflows, incl. incident detection, response and resolution
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Secure sensitive data flows and model interaction layers unique to AI systems
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Contribute to core infrastructure and horizontal platform work when not on security
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Integrate security checks into dev workflows without slowing shipping
Tech stack: Python, Go, TypeScript, GCP, AWS, Docker/Containers
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4-12 yrs security + infrastructure engineering
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Deeply technical: has built security systems, not just configured off-the-shelf tools
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Comfortable moving between security work and general engineering
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On-site 5 days SF
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