Demo

Senior Mechanical Engineer

Cosmic Robotics
San Francisco, CA Full Time
POSTED ON 1/2/2026
AVAILABLE BEFORE 1/31/2026
Location: San Francisco, CA (full time, in-person)

Company Overview

Our mission is to accelerate the construction of critical infrastructure on Earth while pioneering technologies to enable humanity to build beyond Earth. Starting with Cosmic-1 – a system that installs solar panels 10x faster than today’s methods, helping us transition to a clean energy future and laying the groundwork for the future of autonomous construction.

The Role

As a Senior Mechanical Engineer, you will own a critical Cosmic-1 subsystem and lead development from concept to deployment. As a core member of the team, you will help define the era of autonomous construction.

This is a rare opportunity to:

  • Work on hard, meaningful problems that impact the future of infrastructure and energy.
  • Collaborate with a world-class team from NASA, SpaceX, Google, Built Robotics, and others.
  • Rapidly grow, learn, and lead within a quickly scaling company.

Responsibilities

  • Own hardware components and systems such as primary and secondary structures, mechanisms, and enclosures
  • Full product lifecycle ownership from requirements collection, trade studies, preliminary and detailed design, structural analysis, and overseeing manufacturing, integration, testing, and customer delivery
  • Work with manufacturing, electrical, software, and product engineers to develop innovative new solutions to complex interdisciplinary problems
  • Work with vendors and suppliers to find creative solutions to tight deadlines
  • Set milestones, plan roadmaps, and deliver on ambitious timelines
  • Recruit, mentor, and build a world-class engineering organization

Requirements

  • 3 years of professional engineering experience
  • Excellent first-principles understanding of statics, dynamics, heat transfer, materials, and corrosion
  • Expert mechanical design skills using CAD softwares such as Solidworks, NX, PTC Creo, etc. and FEA analysis with ANSYS
  • Strong understanding of designing for manufacturing processes such as CNC milling/lathing, sheet metal bending, welding, and 3D printing
  • Excellent communication and project management skills
  • Thrive in fast-paced environments and push boundaries to meet deadlines

Bonus

  • 5 years of professional engineering experience in mechanical design
  • Experience designing or developing high volume large form factor products like automobiles and construction equipment
  • Experience in mechanical design of ultrahigh reliability products like spacecraft and medical devices
  • Management and recruiting experience

Salary.com Estimation for Senior Mechanical Engineer in San Francisco, CA
$122,178 to $147,335
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