Senior Software Application Engineer

HYPERLUME

HYPERLUME

Software Engineering

San Jose, CA, USA

USD 130k-160k / year + Equity

Posted on Feb 4, 2026
About the roleYou will work in a fast paced, cross functional environment focused on validating high speed SerDes such as 400G, 800G, and 1.6T. The role involves electrical validation, automation development, interoperability testing, and system level debug. You’ll collaborate closely with hardware, firmware, and manufacturing teams to ensure robust performance across a variety of operating conditions.We welcome candidates with diverse backgrounds and experience levels who are passionate about high speed systems and eager to contribute to cutting edge development.Base salary range is $130,000 – $160,000 a year. This position is also eligible for a discretionary bonus, equity and a full range of medical and other benefits.Responsibilities- Debug and test chips with Credo’s chip design; modify existing firmware to create targeted test FW.- Provide in‑depth technical support to resolve complex HW/SW problems using lab equipment (oscilloscopes, protocol analyzers, etc.).- Participate in new product testing and develop Python scripts for automation.- Create technical documentation such as application notes, user guides, and tutorials.Qualifications- Master’s in EE/Communications/Physics (3+ yrs) OR Bachelor’s (5+ yrs).- Strong proficiency in C/C++ or experience with Linux kernel internals, device drivers (I2C, SPI, PCIe, CAN), and board bring‑up.- Fundamental EE knowledge; strong problem‑solving; excellent communication.