Security Engineer
Security Engineer (Infrastructure / Linux)
Location: San Francisco, CA (Hybrid: 4 days onsite, 1 day WFH)
Compensation: $180,000 – $210,000 base
Employment: Full-time
Visa sponsorship:
Not available A well-funded client is seeking a senior Security Engineer to secure infrastructure that runs untrusted code at 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 microVM-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
- Why is This a Great Opportunity
- Cover full healthcare, vision, and dental insurance, and offer unlimited PTO.Series A startup with 7-figure revenue
- Small team, real impact
Note:
Please highlight the must haves in the submittal. They have to have all the must haves to get an interview.
Must have:
- Fast paced startup experience (ideally, seed to Series B) working on a small team
- Proficiency in Go, Rust, or TypeScript.
- Deep expertise in Linux security primitives (seccomp, eBPF, namespaces).Willingness to work 4 days onsite in San Francisco.5+ years of experience in production security infrastructure, securing distributed systems at scale
- Experience securing distributed systems at massive scale.
- Experience with container security and microVM hardening.
- Like to have
- Comfortable implementing kernel-level security controls.
Job Requirements
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 GDPRComfortable working close to the system; kernel-level security experience is a plus