Principal Firmware Engineer

Astera Labs (NASDAQ: ALAB) provides rack-scale AI infrastructure through purpose-built connectivity solutions grounded in open standards. By collaborating with hyperscalers and ecosystem partners, Astera Labs enables organizations to unlock the full potential of modern AI. Astera Labs’ Intelligent Connectivity Platform integrates CXL®, Ethernet, PCIe®, and UALink™ semiconductor-based technologies with the company’s COSMOS software suite to unify diverse components into cohesive, flexible systems that deliver end-to-end scale-up, and scale-out connectivity. Discover more at www.asteralabs.com.

Job Description

The mission of this role is to architect and develop firmware and microcontroller subsystems for Astera Labs’ SoC and systems products. Firmware is responsible for implementing the major differentiating features of Astera Labs’ products. As such, firmware is considered equally important to the hardware, and the firmware team is often customer-facing accordingly to ensure the needs of the customer are fully comprehended.

Basic Qualifications

• Strong academic and technical background in electrical engineering. At a minimum, a Bachelor’s in EE or Computer Science is required, and a Master’s is preferred.


• Minimum 8 years’ experience supporting or developing complex SoC/silicon products for Server, Storage, and/or Networking applications.


• Experience developing firmware to execute in on-chip microcontrollers as well as C-language software development kits (SDKs) to execute on system management controllers (e.g. BMC).


• Experience working with logic designers to architect and verify HW-SW interfaces on complex SoCs.


• Professional attitude with the ability to prioritize a dynamic list of multiple tasks, to plan and prepare for customer meetings in advance, and to work with minimal guidance and supervision.


• Entrepreneurial, open-minded behavior and can-do attitude. Think and act fast with the customer in mind!


• Authorized to work in the US and start immediately.

Required Experience

• Experience developing embedded firmware for PCIe products.


• MQX RTOS or ThreadX Development or enablement.


• High level of proficiency in C (preferred) or C++, including development of C-based SDKs.


• High level of proficiency in Python for automating pre-processors/post-processors and FW QC.


• Working knowledge of software/firmware build environments, gcc/Make, Doxygen, and GitHub.


• Hands-on experience with Server, Storage, and/or Networking equipment (e.g. Network Switches).


• Familiarity with SoC interfaces to common IP blocks such as PCIe Controllers, NVME Controllers, AMBA/AHB interfaces, on-chip memory interfaces, and other similar interfaces


• Direct experience working on products with high-speed interfaces common in Data Center equipment: PCI- Express (Gen-3 and above), 100/400G Ethernet, Infiniband, NVMe, etc

Preferred Experience

• Experience developing firmware to execute in on-chip microcontrollers as well as C-language SDKs to execute on system management controllers (e.g. BMC)


• Experience with industry forums and collaboration workgroups such as OCP and OpenBMC

The base salary range is $203,000.00 USD – $230,000.00 USD. Your base salary will be determined based on your location, experience, and the pay of employees in similar positions.  

We know that creativity and innovation happen more often when teams include diverse ideas, backgrounds, and experiences, and we actively encourage everyone with relevant experience to apply, including people of color, LGBTQ+ and non-binary people, veterans, parents, and individuals with disabilities.