Mechanical Engineer, Systems

DensityAI, Inc.; Mountain View (CA); On-site; USD 170,000 - 260,000; Full time

Benefits offered by this job

Equity grant

Medical/dental/vision insurance

401(k)

Paid time off

Job summary

DensityAI, Inc. seeks an experienced mechanical design lead for AI accelerator systems, from module to datacenter, focusing on power delivery, cooling, and high‑speed connectivity.

You will own tolerance stack‑ups, run structural and shock analyses, and collaborate with thermal, electrical, and packaging teams to deliver robust, manufacturable designs.

Equity, benefits, and a California salary range of $170k–$260k are offered.

Qualifications

• 5+ years of mechanical design experience on high-power data center systems.
• Experience leading design from concept through high-volume production.
• Strong proficiency in 3D CAD modelling and GD&T.

Responsibilities

• Accelerator module mechanical design including structure, retention, load, board integration, PCBA co-design and stress analysis.
• Tray design including chassis structure, component layout, cable routing, blind-mate alignment, serviceability.
• Collaborate with thermal, electrical, packaging, and manufacturing teams; drive DFM/ DFA with CM and ODM partners.
• Own products through lifecycle: design, prototyping, validation campaigns, NPI, high-volume manufacturing, field failure analysis and service.
• Rack-level mechanical architecture: weight distribution, power/cooling distribution, cable management, and standards compliance.
• Integrate liquid cooling: cold plate mounting, manifold routing, quick disconnects, leak detection and containment.
• Drive structural and dynamic analysis (FEA, shock, vibration, seismic, shipping) and tolerance stack-up across interfaces.
• Develop and use AI-assisted tool flows to accelerate design, analysis, and signoffs.

Skills

High-power design

3D CAD modeling

GD&T tolerance

Thermal integration

DFM collaboration

FEA analysis

Cross-functional work

Tools

3D CAD software

Job description

About The Role

Own the mechanical design of AI accelerator systems from the accelerator board to the tray, rack, and datacenter. You'll design power delivery, cooling, and high-speed signal connectivity systems for extremely dense, high-performance computing equipment. You'll own the tolerance stack-ups that make module, tray, and rack actually fit together, run the structural and shock-and-vibration analysis that proves it survives shipping and deployment, and work the tradeoffs with thermal, electrical, and silicon packaging engineering teams that decide what the system can be. Work from concept through datacenter deployment.

About The Role

Own the mechanical design of AI accelerator systems from the accelerator board to the tray, rack, and datacenter. You'll design power delivery, cooling, and high-speed signal connectivity systems for extremely dense, high-performance computing equipment. You'll own the tolerance stack-ups that make module, tray, and rack actually fit together, run the structural and shock-and-vibration analysis that proves it survives shipping and deployment, and work the tradeoffs with thermal, electrical, and silicon packaging engineering teams that decide what the system can be. Work from concept through datacenter deployment.

What you'll do

• Accelerator module mechanical design — module structure, retention and load, board and coldplate integration, PCBA co-design and stress analysis, coolant and air flow co-design, and connector definition
• Tray design — chassis structure, component layout, cable and connector routing, blind-mate alignment, and serviceability
• Partner with thermal, electrical, packaging, and manufacturing teams on design tradeoffs, and drive DFM and DFA with our CM and ODM partners.
• Own products through their lifecycle including design, prototyping, engineering and reliability validation campaigns, New Product Introduction, High Volume Manufacturing, field failure analysis and service
• Rack-level mechanical architecture — structure and weight distribution, power and cooling distribution, cable management, and compliance with datacenter rack standards
• Integrate liquid cooling at system scale, including cold plate mounting, manifold routing, quick disconnects, and leak detection and containment
• Drive structural and dynamic analysis (FEA, shock and vibration, seismic, shipping) and own tolerance stack-up and GD&T across the module-to-tray-to-rack interfaces
• Use and develop AI assisted tool flows to accelerate mechanical design, analysis, and signoff timelines

What we're looking for

• Exceptional abilities in system-scale mechanical design for high-power electronics: enclosure and chassis structure, thermal and mechanical integration, and design for service and manufacturability
• 5+ years of mechanical design experience on datacenter, server, or comparable high-power electronic systems, with demonstrated ownership of a design from concept through high-volume production
• Highly capable in 3D CAD modeling
• Proficiency designing for a broad range of low and high-volume manufacturing techniques, including machining, stamping, forming, additive, extrusion, casting, welding, brazing, bonding, injection molding, overmolding, soldering, and other processes
• Structural, transient, and multiphysics analysis skills including finite element analysis
• Demonstrated ability to work closely with thermal, electrical, packaging, and manufacturing teams, and with CM and ODM partners, to converge and release system designs
• Skilled in mechanical tolerance analysis, GD&T, and mechanical drawing creation
• Engineering validation test campaign definition and ownership
• Strong design documentation and organizational discipline including experience releasing and revising detailed engineering drawings and managing documentation in PLM systems to ensure that manufactured parts meet engineering specifications and have adequate traceability
• (Optional) OCP and EIA-310 rack standards, OAM / UBB or comparable accelerator module form factors, liquid cooling and manifold integration, high-current busbar and power distribution mechanical, or seismic and shipping qualification

Compensation

Final offers depend on level, location, and skills relevant to the role. Additional compensation: equity grant per company guidelines; medical / dental / vision; 401(k); standard PTO.

Visa Sponsorship

DensityAI sponsors qualified candidates for H-1B, O-1, TN, E-3, and other employment-based visas, and we welcome applicants on F-1 OPT and STEM-OPT. Work authorization is required at start; we provide immigration support to secure or transfer status.

Export Controls

Aspects of this role may involve access to information subject to U.S. export controls (EAR/ITAR). We may discuss licensing or scope adjustments during the interview.

Equal Opportunity

DensityAI is an Equal Opportunity Employer. We do not discriminate on the basis of race, color, religious creed, national origin, ancestry, physical or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age (40+), sexual orientation, military or veteran status, pregnancy, or any other status protected by law. We comply with the California CROWN Act and provide reasonable accommodations on request.

Full compensation packages are based on candidate experience and relevant certifications.

California pay range: $170,000 USD - $260,000 USD

Compensation

Final offers depend on level, location, and skills relevant to the role. Additional compensation: equity grant per company guidelines; medical / dental / vision; 401(k); standard PTO.

Visa Sponsorship

DensityAI sponsors qualified candidates for H-1B, O-1, TN, E-3, and other employment-based visas, and we welcome applicants on F-1 OPT and STEM-OPT. Work authorization is required at start; we provide immigration support to secure or transfer status.

Export Controls

Aspects of this role may involve access to information subject to U.S. export controls (EAR/ITAR). We may discuss licensing or scope adjustments during the interview.

Equal Opportunity

DensityAI is an Equal Opportunity Employer. We do not discriminate on the basis of race, color, religious creed, national origin, ancestry, physical or mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age (40+), sexual orientation, military or veteran status, pregnancy, or any other status protected by law. We comply with the California CROWN Act and provide reasonable accommodations on request.

Full compensation packages are based on candidate experience and relevant certifications.

California pay range: $170,000 USD - $260,000 USD