Astera Labs Inc.

Astera Labs Inc.

Senior Embedded Software Engineer - Ethernet Retimers

San Jose, California, United States · Senior

Sponsorship not specified$133k-$185kDetected 23 hours ago
PythonC++BashGitLinuxAPI DevelopmentData AnalysisNLPProduct ManagementEmbedded SystemsSystems EngineeringElectrical EngineeringTest AutomationFDA RegulatoryCommunicationMentoring

About the role

  • Astera Labs' Taurus product line includes Ethernet retimers and gearboxes deployed in active electrical cables and in-system applications at the heart of AI infrastructure.
  • As AI clusters scale to tens of thousands of GPUs connected by high-speed Ethernet fabrics, the firmware running on these connectivity devices is mission-critical - and so is the ability to debug it fast when something breaks.
  • We're looking for a Firmware Engineer who can bridge our system validation team and firmware development organization.

Responsibilities

  • Customer Bring-Up & Field Support
  • Support customer bring-up and integration activities, including triaging field issues and coordinating fixes with internal teams
  • Partner with field applications engineers to diagnose and resolve deployment issues quickly
  • Partner with SoC, field applications, and platform teams across the full product lifecycle

Requirements

  • Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field
  • 5+ years of experience in firmware development or embedded systems engineering
  • Hands-on experience with Ethernet at the system or device level: Layer 1 PHY, SERDES, retimers, gearboxes, NICs, switches, or related devices
  • Ability to debug across the hardware/software boundary: register accesses, embedded SDKs, link state machines, PHY telemetry, debug print logs
  • Familiarity with Linux development tools: gcc/clang, make, bash, gdb, git

Nice to have

  • Experience with switch or NIC management software, SAI, or OpenBMC
  • Knowledge of PMA, FEC, or other PHY-layer subsystems beyond the SERDES
  • Background with retimer or gearbox firmware or SDK/API development
  • Python scripting for debug, test automation, or data analysis
  • Experience with lab equipment: BERT, oscilloscopes, Viavi/Lecroy/Exfo/Keysight/Tektronix or similar
  • Understanding of signal integrity: equalization, jitter, eye diagrams, link margin
  • Prior experience mentoring engineers or leading debug efforts across teams

Skills

  • Strong communication skills and comfort working in a fast-moving environment where the problem in front of you may not have a clean solution

Compensation

  • Salary range is $133,200 to $185,000 depending on experience, level, and business need.

Company info

  • If you've worked at a networking company, know how Ethernet actually works from the MAC down through the PHY, have debugged real link failures, and have written or modified firmware or low-level drivers, this role was designed for you.
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