Principal Physical Design Engineer, STA

Location: San Jose, California, United States; onsite role.

Annual base salary: USD 143,800–230,000, plus discretionary annual bonus and equity awards.

Company

hirify.global's ASIC Products Division develops custom high-performance silicon solutions for hyperscale cloud providers, AI platforms, and networking infrastructure.

What you will do

• Own full-chip timing sign-off and final timing closure across PVT corners.
• Author and maintain SDC constraints for functional and test modes.
• Deploy AI/ML automation, data-mining workflows, and corner-reduction methods to reduce STA runtime and improve infrastructure efficiency while maintaining physical coverage.
• Triage timing violations, identify root causes, and eliminate design marginalities across complex clock networks and multi-die boundaries.
• Apply advanced OCV, SI, and IR-drop concepts and drive timing ECOs.
• Collaborate with RTL, Physical Design, and DFT teams to optimize PPA.

Requirements

• Bachelor's degree in Electrical Engineering or Computer Engineering.
• 12+ years of hands-on ASIC STA and timing closure experience.
• Expert proficiency with sign-off tools including PrimeTime and Tempus.
• Advanced experience with MMMC and OCV management.
• Strong scripting skills in Tcl, Python, Perl, and Shell.
• Proven use of AI plugins and data-mining scripts for runtime reduction and reporting.
• Exceptional problem-solving and communication abilities.

Culture & Benefits

• Work on advanced custom ASICs using 3nm/2nm technologies, 2.5D/3D chiplet integration, CoWoS, and HBM3/4.
• Medical, dental, and vision plans; 401(k) participation with company matching; and an Employee Stock Purchase Program.
• Employee Assistance Program, company-paid holidays, paid sick leave, vacation time, and applicable paid family and other leave.
• Discretionary annual bonus, competitive new-hire equity grant, and potential annual equity awards.

Hiring process

• First-time applicants must create a candidate login account before applying; existing candidates must sign in before applying.
• Applicants located outside the USA should provide a home address for future correspondence.