Junior Embedded Linux Engineer (Yocto) – Active Clearance

Lyntris; San Diego (CA); On-site; USD 100,000 - 120,000; Full time

Benefits offered by this job

Paid Time Off

Paid Company Holidays

Optional HSA and FSA

Base and Voluntary Life Insurance

Short Term & Long-Term Disability Ins

401k Matching

Employee Assistance Program

Job summary

Lyntris is seeking a Junior Operating Systems Engineer to build and maintain embedded Linux images using Yocto in a high-security environment in San Diego, CA. The role focuses on immutable OS images, secure boot, and update tooling, with hands-on debugging across kernels, drivers, and userspace on real appliances. Applicants must hold an active U.S.

national security clearance or be able to obtain one. The position offers full-time employment, competitive pay, and benefits in a defense

Qualifications

• Active U.S. national security clearance or ability to obtain one.
• Build and maintain custom Linux images using the Yocto Project (recipes, layers, BitBake, kernel configuration).
• Support an immutable, A/B-updatable OS image architecture, including secure boot and update tooling.
• Package, integrate, and troubleshoot system services, drivers, and third-party software on embedded x86 hardware.
• Contribute to OS hardening efforts (FIPS mode, secure boot, compliance-driven configuration).
• Debug boot, kernel, driver, and userspace issues on real appliance hardware.
• Use generative AI tools daily to accelerate development: writing and reviewing recipes, generating test scaffolding, drafting documentation, and debugging build failures.
• Write clear documentation for build processes, image releases, and provisioning workflows.

Responsibilities

• Build and maintain custom Linux images using the Yocto Project (recipes, layers, BitBake, kernel configuration).
• Support an immutable, A/B-updatable OS image architecture, including secure boot and update tooling.
• Package, integrate, and troubleshoot system services, drivers, and third-party software on embedded x86 hardware.
• Contribute to OS hardening efforts (FIPS mode, secure boot, compliance-driven configuration).
• Debug boot, kernel, driver, and userspace issues on real appliance hardware.
• Use generative AI tools daily to accelerate development: writing and reviewing recipes, generating test scaffolding, drafting documentation, and debugging build failures.
• Write clear documentation for build processes, image releases, and provisioning workflows.

Skills

Clearance eligibility

AI tooling usage

Documentation writing

Kernel debugging

Team collaboration

Tools

Yocto Project

Buildroot

Suricata

Zeek

Job description

Lyntris is seeking a Junior Operating Systems Engineer to build and maintain embedded Linux images using Yocto in a high-security environment in San Diego, CA. The role focuses on immutable OS images, secure boot, and update tooling, with hands-on debugging across kernels, drivers, and userspace on real appliances. Applicants must hold an active U.S.

national security clearance or be able to obtain one. The position offers full-time employment, competitive pay, and benefits in a defense