Collinear AI
MTS - Engineering (Security)
San Francisco, CA +2 · Hybrid · Full-time · Posted Oct 5, 2026
- Location
- San Francisco, CA
Sunnyvale, California
Bengaluru, India - Experience
- 8+ years in security engineering, much of it securing cloud infrastructure in production.
About the job
Own and implement security across Collinear AI’s infrastructure, products, and customer data, including environments where AI agents run untrusted code.
What you'll do
- Harden agent sandboxes and secure AWS, cloud, and Kubernetes environments through controls, detection, and response.
- Protect customer data, secure the software supply chain, and set guardrails for engineers and coding agents accessing production.
- Lead customer security reviews and compliance work, test systems offensively, and address discovered vulnerabilities.
What they ask for
- Deep hands-on AWS security experience, including IAM, CloudTrail, GuardDuty, KMS, and VPC design.
- Offensive security experience, such as penetration testing, red teaming, or vulnerability research.
- Experience isolating untrusted workloads with containers or microVMs and understanding isolation weaknesses.
- Production-quality coding skills; Python is preferred, and experience building or growing a startup security program.
Tools
AWS, IAM, CloudTrail, GuardDuty, KMS, VPC, Kubernetes, Python
AI focus
Secure sandboxes running AI agents trained to find and exploit vulnerabilities; set guardrails for coding agents working against production infrastructure.
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