Security Engineer

Job description:

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

Tech Stack

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

Qualifications:

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

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

Salary Type : Annual Salary

Salary Min : $ 180000

Salary Max : $ 210000

Currency Type : USD