Embedded Software Engineer

TL;DR

Embedded Software Engineer (OpenWrt/PON): Design, implement, and maintain firmware across the full stack for ONU systems with an accent on PON/OMCI protocols, Ethernet switching, and security features. Focus on bootloader extensions, kernel bring-up, firmware upgrades, and integrating TPM 2.0 with Secure Boot for high-reliability products.

Location: Remote-US (Burlington, MA)

Company

Global leader in high-speed networking systems, services, and software for hyperscalers, telecom operators, and enterprises.

What you will do

• Develop and maintain embedded Linux firmware on OpenWrt-based ONU systems.
• Implement PON subsystems including XGS-PON registration, OMCI agent, eOMCI, and MIB synchronization.
• Integrate Ethernet switching, VLAN operations, QoS, and LACP on hirify.global hardware.
• Extend U-Boot bootloader, manage firmware upgrades, and handle version control.
• Implement security features like TPM 2.0 integration, Secure Boot, and PON encryption.
• Maintain OpenWrt packages, build scripts, apply patches, conduct code reviews, write tests, and debug issues.

Requirements

• Bachelor's or Master's in Computer Engineering, Electrical Engineering, Computer Science, or related field.
• 3–5 years in embedded software or firmware development.
• Proficient in C for embedded programming; C++ familiarity a plus.
• Hands-on with embedded Linux (kernel drivers, device trees, cross-compilation).
• Familiarity with OpenWrt or similar (Yocto, Buildroot).
• Knowledge of networking: Ethernet, VLANs, QoS, LACP, TCP/IP.
• Experience with bootloaders (U-Boot) and firmware management; Git, Make, Linux tools.

Nice to have

• PON technologies (XGS-PON, GPON) and OMCI protocol.
• Marvell/Broadcom switching SDKs.
• TPM 2.0 and Secure Boot integration.
• NAND flash, UBI/UBIFS, MTD subsystems.
• IPC mechanisms (ubus, Unix sockets, shared memory).
• CAN bus experience.

Culture & Benefits

• Flexible work environment prioritizing growth, well-being, and belonging.
• Comprehensive benefits: medical, dental, vision; 401(K) with matching, ESPP, EAP.
• Paid holidays, sick leave, vacation; Paid Family Leave compliance.
• People-first culture with focus on diversity and inclusion.