Mechanical and Packaging, Lead Engineer

Stealth Startup; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Equity & Ownership

Job summary

Stealth Startup is building a multi-megawatt, behind-the-meter turbine system for hyperscalers in the San Francisco Bay Area. This full-time on-site role turns a turbine core design into a fully packaged, factory-tested power block with close collaboration across turbomachinery, electrical and controls teams.

You will own the mechanical systems, piping, tooling, fixtures, and the documentation package that sets the standard for each unit.

Qualifications

• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• 5+ years designing complex mechanical assemblies for rotating equipment or heavy industrial systems, released to production drawings.
• Hands-on design or qualification of at least one of: inlet cooling/conditioning, fuel gas skids, or lube oil/hydraulic systems.
• Strong CAD, GD&T and tolerance analysis in any major package.
• Drawings have been built, shipped and run.

Responsibilities

• Turn the first power generation unit from design into hardware.
• Package a proven aeroderivative gas turbine core into a complete, factory-tested power block.
• Own mechanical systems around the engine: supports, enclosure, air handling, and auxiliary piping.
• Produce CAD, lead design reviews for manufacturability, and release drawings for fabrication partners.
• Own the documentation package that becomes the standard for every unit.
• Spend time on the shop floor with partners and in our facility to fix first-build lessons.
• Help decide which parts we build ourselves and which we buy.
• Report to Head of Engineering and work with turbomachinery, electrical, and controls teams.

Skills

CAD

GD&T

Tolerance analysis

Shop floor experience

Education

Bachelor's degree in Mechanical Engineering or Aerospace Engineering

Tools

Industry-standard CAD packages

Job description

We are building the vertically integrated, distributed utility for hyperscalers. While legacy turbine manufacturers are sold out for the next half-decade, AI data centers are bleeding millions per day on idle compute. We wedge into this market with multi-megawatt generators that deploy behind the meter in a fraction of the traditional timeline. From there, we are building domestic gigafactories for proprietary systems, operating as a distributed utility that owns the customer relationship.

Role Description

This is a full-time, on-site role based in the San Francisco Bay Area. You'll turn our first power generation unit from design into hardware. That means taking a proven aeroderivative gas turbine core and packaging it into a complete, factory-tested power block on an aggressive timeline.

You'll own the mechanical systems around the engine: structural supports, enclosure, air handling, and the auxiliary systems that keep the unit running. You'll also own the piping that connects them and the tooling and fixtures used to build them. You'll produce the CAD, lead design reviews for manufacturability, and release the drawings our fabrication partners build from. You'll own the documentation package that becomes the standard for every unit after the first.

You'll spend time on the shop floor, both with our partners and in our own facility, and fix what the first build teaches us. Over time you'll help decide which parts we make ourselves and which we buy. You'll report to our Head of Engineering and work closely with our turbomachinery, electrical and controls teams.

Qualifications

• A Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a highly related field
• 5+ years designing complex mechanical assemblies for rotating equipment or heavy industrial systems, taken all the way to released production drawings
• Hands-on design or qualification of at least one of: inlet cooling or conditioning, fuel gas forwarding and filtration skids, or lube oil and hydraulic systems for turbomachinery
• Strong CAD, GD&T and tolerance analysis in any major package
• Your drawings have been built, shipped and run
• Equity & Ownership: You will be stepping into a foundational role with generous company equity, and the agency to own full systems as we scale.
• Mission-Critical Impact: You will actively address the immediate AI power crisis by building the infrastructure powering American data centers.
• Fast-paced Innovation: Opportunity to build and deploy solutions that matter in a high-velocity environment.