Security Engineer
About E2B
E2B is a fast-growing Series A startup with 8-figure revenue. We've raised over $37M since our founding in 2023. Our customers include companies like Microsoft, Perplexity, Hugging Face, Manus, and Groq. We're building the next hyperscaler for AI agents.
About the role
Your job will be to secure the infrastructure where billions of AI agents execute untrusted code daily. You'll be responsible for protecting companies' most sensitive AI workflows while maintaining our sub-200ms performance standards.
You'll be building defense-in-depth security for our Firecracker microVM infrastructure, implementing real-time threat detection across tens of thousands of concurrent sandboxes, and ensuring compliance with enterprise security requirements.
This role requires deep technical expertise in systems security and the ability to solve novel security challenges in the AI agent execution space.
What we're looking for
8+ years of experience in production security infrastructure
Being comfortable with securing distributed systems at massive scale
Deep expertise in Linux security primitives (seccomp, eBPF, namespaces)
Excited to work in person from San Francisco on cutting-edge AI infrastructure
Experience with container security and microVM hardening
Track record with compliance frameworks (SOC 2, ISO 27001, GDPR)
Not being afraid to implement kernel-level security controls
What it’s like to work at E2B
We’re a fast-growing startup with in-person (4 days on-site, 1 day WFH) offices in San Francisco and Prague, Czech Republic. We already generate 8-figure revenue and work directly with top-tier AI companies like Perplexity, Hugging Face, and other exciting teams pushing the frontier of AI.
We cover full healthcare, vision, and dental insurance, and offer unlimited PTO.