About Echo

Echo delivers frontier-hardened software across the enterprise software supply chain.

Echo's containers, libraries, OS packages, VMs, and more are built and patched from source by agentic pipelines, and continuously vetted for supply chain threats. With us, developers and agents can build with secure-by-default software that's compatible with the tools and versions they already use.

We're looking for a Low Level Engineer to join our team and build the OS behind Echo's containers, libraries and VMs, and the system foundation for every artifact we ship.

What you'll do

Design and build the core infrastructure our customers rely on, supporting our secured artifacts: CVE-free containers, libraries, and VMs

Build and maintain support systems for multiple Linux distributions, ensuring seamless integration with existing development workflows

Harden our operating systems and artifacts to meet standards such as FIPS and STIG

Own complex projects from technical planning through execution and delivery, working closely with Product, our AI engineers, researchers, and other engineers to integrate low-level infrastructure with our AI-powered factory

What you bring

Required

5+ years of experience developing large-scale projects within development teams

Deep, hands-on experience with Go, C, and/or C++

Deep understanding of Linux operating systems, kernel concepts, and system-level programming

Proficient with Git and collaborative development workflows

Excellent communication skills and proven ability to work effectively in cross-functional teams

Preferred

Experience with Linux packaging and distribution internals (apt, apk, rpm)

Research background, for example in vulnerability research or reverse engineering

Familiarity with software supply chain security