Mechanical Design Engineer (Photonics)

Location: Mountain View, California, United States; flexible hybrid workplace model

Salary: $135,000–$212,000 USD per year, plus equity grants and other rewards.

Company

hirify.global develops photonics-based computing and data center infrastructure for advanced AI and high-performance computing workloads.

What you will do

• Create CAD models for package stack-ups and associated components.
• Perform mechanical design analysis and identify solutions that improve package integrity.
• Execute tolerance stack-up analyses and create GD&T drawings for advanced packages and optically aligned assemblies.
• Apply manufacturing expertise to design decisions, perform FMEAs, and assess process and design costs.
• Manage prototype builds with external vendors and validate designs for high-volume manufacturability.
• Collaborate with packaging and systems teams to meet system-level mechanical, optical, thermal, assembly, and reliability requirements.

Requirements

• BS or MS in Mechanical Engineering or a related field.
• At least 3 years of mechanical design experience in semiconductor packaging, optoelectronics, or photonics modules.
• Proficiency with CAD tools such as SolidWorks or Creo and mechanical design best practices.
• Expertise in GD&T and tolerance stack-up analysis.
• Working knowledge of semiconductor packaging technologies, including 3D, 2.5D, and FCBGA architectures and their mechanical and thermal trade-offs.
• Capacity to comply with federally mandated U.S. export control requirements.

Nice to have

• Knowledge of ASME Y14.5 standards.
• Experience with FEA tools such as ANSYS or Abaqus for structural and thermal analysis.
• Fiber array unit attach, optical connector, or photonic alignment experience.
• Experience with liquid cooling or advanced thermal architectures for AI/HPC systems.
• Exposure to high-volume manufacturing and OSAT engagement in Asia.

Culture & Benefits

• Flexible hybrid workplace model.
• Medical, dental, and vision coverage.
• Retirement savings matching, life insurance, disability coverage, and paid family leave.
• Vacation, sick leave, public holidays, commuter benefits, and training and development.
• Equity grants for full-time employees.