Senior Security Linux Engineer

Our customer, a well-funded client, is seeking a senior Security Engineer to secure infrastructure that runs untrusted code at a massive scale. This role is focused on Linux and infrastructure security, balancing strong isolation guarantees with high-performance requirements in a distributed environment.

Responsibilities

• Secure high-scale infrastructure executing untrusted workloads
• Design and implement defense-in-depth security for sandboxed and micro-VM-based systems
• Build real-time threat detection across large numbers of concurrent environments
• Apply Linux security primitives to enforce isolation and runtime protection
• Ensure compliance with enterprise security standards while maintaining low-latency performance

Tech Stack

Go, Rust, C, TypeScript, Linux security, container hardening

Qualifications

• 5+ years of experience securing production infrastructure
• Deep hands-on experience with Linux security primitives such as seccomp, eBPF, and namespaces
• Experience securing distributed systems at scale
• Familiarity with compliance frameworks, including SOC 2, ISO 27001, and GDPR
• Comfortable working close to the system; kernel-level security experience is a plus

Must have:

• Fast-paced startup experience (ideally, seed-Series B) working on a small team (>50 total)
• Proficiency in Go, Rust, or TypeScript.
• Deep expertise in Linux security primitives (seccomp, eBPF, namespaces).
• Willingness to work 4 days on-site in San Francisco.
• 5+ years of experience in production security infrastructure, securing distributed systems at scale
• Experience securing distributed systems at a massive scale.
• Experience with container security and microVM hardening.

Miscellaneous

San Francisco Bay Area,​ 4 days in the office

Sponsorship: Is NOT available for this position

Compensation: 180,000 - $210,000 DOE plus benefits

Applicants must be authorized to work for any U.S. employer.

Staff Smart, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, genetic information, disability status, or any other characteristic protected by law.