Security Engineer

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.ResponsibilitiesSecure high-scale infrastructure executing untrusted workloadsDesign and implement defense-in-depth security for sandboxed and microVM-based systemsBuild real-time threat detection across large numbers of concurrent environmentsApply Linux security primitives to enforce isolation and runtime protectionEnsure compliance with enterprise security standards while maintaining low-latency performanceTech StackGo, Rust, C, TypeScript, Linux security, container hardeningQualifications5+ years of experience securing production infrastructureDeep hands-on experience with Linux security primitives such as seccomp, eBPF, and namespacesExperience securing distributed systems at scaleFamiliarity with compliance frameworks including SOC 2, ISO 27001, and GDPRComfortable working close to the system; kernel-level security experience is a plusWhy is This a Great OpportunityCover full healthcare, vision, and dental insurance, and offer unlimited PTO.Series A startup with 7-figure revenueSmall team, real impactCommentsPlease 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-Series B) working on a small team (