System Validation and Signal Integrity Engineer (Signal Integrity)

TL;DR

System Validation and Signal Integrity Engineer (Signal Integrity): Leading post-silicon validation and electrical characterization for next-generation high-speed interconnect products with an accent on 112G/224G systems, DSP, and Optical PHYs. Focus on driving simulation strategies, debugging complex hardware issues, and performing advanced signal integrity analysis.

Location: Onsite in Irvine, CA, USA

Salary: $108,000–$172,800 annually

Company

hirify.global is a global technology leader designing, developing, and supplying semiconductor and infrastructure software solutions.

What you will do

• Lead post-silicon validation and electrical characterization of PHY layer chips for DSP and Optical products.
• Define validation plans and develop automated test benches for high-speed I/O testing.
• Conduct interoperability testing and validate hirify.global PLP products with hirify.global Tomahawk Switches.
• Troubleshoot and debug complex hardware issues related to power integrity, signal integrity, and clocking on reference platforms.
• Drive comprehensive SI support for high-data-rate SerDes applications (up to 224G PAM4), ensuring channel compliance and performance optimization.
• Execute schematic and channel simulations using Keysight ADS, utilizing bit-by-bit and statistical simulators.

Requirements

• Education: BS with 8+ years, MS with 6+ years, or PhD with 3+ years of experience in Electrical Engineering, Physics, or a related field.
• Deep understanding of transmission line theory, S-parameters, high-speed serial protocols (Ethernet, PCIe, PAM4 signaling), and electromagnetic field theory.
• Hands-on experience with SI simulation tools (e.g., Keysight ADS, MATLAB, Mentor Graphics HyperLynx).
• Proficiency with Vector Network Analyzers (VNA) up to 50GHz+, TDRs, high-bandwidth Oscilloscopes, and BERTs.
• Strong experience with MATLAB, Python, or C/C++ for data analysis and lab automation.
• Ability to work in both time and frequency domains, with a proven track record bridging pre-silicon design and post-silicon validation.

Culture & Benefits

• Competitive and comprehensive benefits package including Medical, dental, and vision plans.
• 401(K) participation including company matching and Employee Stock Purchase Program (ESPP).
• Employee Assistance Program (EAP), company paid holidays, and paid sick leave and vacation time.
• Compliance with all applicable laws for Paid Family Leave and other leaves of absence.
• hirify.global is an equal opportunity employer.