Package Mechanical Design Engineer
About The Position
Join the Cisco Silicon One team in developing a unified silicon architecture for web scale and service provider networks. Cisco’s silicon team provides a unique experience for ASIC engineers by combining the resources offered by a large multi-geography silicon organization and a large campus with the startup culture and breadth of growth opportunities that working in a smaller ASIC team can provide. We are seeking a Package Mechanical Design Engineer to join the Cisco ASIC Group. In this role, you will lead mechanical and thermomechanical simulation efforts for ASICs and complex silicon/package/board assemblies, driving design decisions and ensuring product reliability for high-performance Cisco systems. You will work across a globally distributed team and play a key role in shaping simulation methodologies, reliability strategies, and design guidelines across packaging, board-level integration, and system hardware engineering.
Requirements
- Bachelors + 7 years, or Masters + 4 years, or PhD + 1+ years in mechanical engineering or related field.
- Hands-on experience in thermomechanical simulation of semiconductor packages and board-level assemblies.
- Proven experience in solder joint reliability analysis, including fatigue and/or creep modeling.
- Strong experience with FEA tools such as ABAQUS or ANSYS, including nonlinear material modeling.
- Familiarity with CAD tools (e.g., Creo) and GD&T.
- Ability to collaborate across global teams.
Nice To Haves
- 5+ years in electronics packaging or board-level reliability (BLR) simulation.
- Experience with solder constitutive models (e.g., Anand, viscoplastic models) and fatigue life prediction methodologies.
- Knowledge of JEDEC/IPC reliability standards, including thermal cycling, drop, and mechanical testing.
- Experience with advanced packaging technologies (flip chip, 2.5D/3D, heterogeneous integration).
- Background in correlation between simulation and reliability test data.
- Strong scripting skills for simulation automation and data processing.
Responsibilities
- Perform advanced finite element analysis (FEA) to evaluate thermomechanical reliability of ASIC packages and board-level assemblies, including stress, warpage, and interconnect integrity.
- Lead solder joint reliability simulations, including thermal cycling, mechanical shock, and vibration, and develop lifetime prediction models based on industry methodologies (e.g., Coffin-Manson, Darveaux).
- Model and analyze time-dependent material behavior, including creep, viscoplasticity, and fatigue, with temperature- and rate-dependent effects for solder materials and underfills.
- Drive board-level reliability (BLR) assessments, including PCB–package interactions, SMT effects, and system-level constraints.
- Correlate simulation results with reliability testing data (e.g., TCT, drop test, field returns) to improve model accuracy and predictive capability.
- Develop and automate simulation workflows using Python, Fortran, or similar tools to improve efficiency and repeatability.
- Provide design recommendations and reliability sign-off guidance to cross-functional teams, influencing package and system design decisions.
- Document methodologies, assumptions, and results clearly to support engineering reviews and product qualification.
Benefits
- medical, dental and vision insurance
- a 401(k) plan with a Cisco matching contribution
- paid parental leave
- short and long-term disability coverage
- basic life insurance
- 10 paid holidays per full calendar year
- 1 floating holiday for non-exempt employees
- 1 paid day off for employee’s birthday
- paid year-end holiday shutdown
- 4 paid days off for personal wellness
- 16 days of paid vacation time per full calendar year (non-exempt employees)
- flexible vacation time off program (exempt employees)
- 80 hours of sick time off provided on hire date and each January 1st thereafter
- up to 80 hours of unused sick time carried forward from one calendar year to the next
- Additional paid time away may be requested to deal with critical or emergency issues for family members
- Optional 10 paid days per full calendar year to volunteer
- annual bonuses (for non-sales roles)
- performance-based incentive pay (for sales roles)
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What This Job Offers
Job Type
Full-time
Career Level
Senior
