Requirements

Deep knowledge of Linux internals: namespaces, cgroups, seccomp, virtualization, ideally microVMs like Firecracker
Experience shipping production systems in Go
Understanding of network isolation at the packet level
Strong performance instincts with syscall cost awareness and profiling experience
5+ years building backend or infrastructure systems
Experience partnering with product, design, and business teams to ship user-facing software
Low-ego, team-first mindset valuing collaboration and mentorship

What you'll be doing

Build the isolation layer using microVMs or containers, namespaces, cgroups, seccomp, snapshot and restore features
Own the security boundary to safely run untrusted customer code
Scale systems to handle thousands of concurrent environments with low latency and high density
Write Go code and make architectural and complex implementation decisions
Collaborate with Product Managers to convert frontier research needs into shippable primitives

Comprehensive benefits package supporting well-being, growth, and work-life balance
Benefits vary by country and may include healthcare coverage, parental leave, retirement plans, relocation support, wellness programs, meal and transportation allowances, and other location-specific perks