Senior Mechanical Engineer

GS2 | B Corp™; San Francisco (CA); Hybrid; USD 132,000 - 178,000; Full time

Benefits offered by this job

Equity

Full benefits

Job summary

GS2 | B Corp™ in the Bay Area is seeking a Senior Mechanical Engineer to own complex mechanical sub-assemblies from CAD conception through prototyping, testing, and deployment. This hybrid role includes relocation support to Bay Area/Denver/Boston, a salary of $135,000–$175,000 plus equity and full benefits, and the chance to advance first-of-a-kind energy systems.

You will collaborate with machine shops and internal technicians to prototype, test, and deploy high‑temperature, high‑pressure

Qualifications

• BS or MS in Mechanical Engineering required.
• 5+ years hands-on mechanical design experience bringing physical hardware from CAD to test.
• Proficiency in SolidWorks and NX; experience with FEA analysis.
• ASME Y14.5 GD&T, thermal fluids or high-temperature alloys experience.

Responsibilities

• Design high-temperature, high-pressure mechanical components for novel clean energy reactors.
• Perform thermal, structural, and fluid FEA simulations to validate designs.
• Collaborate with machine shops, fabrication vendors, and internal technicians to prototype and instrument hardware.
• Troubleshoot hardware failures and iterate designs quickly.

Skills

Mechanical design

SolidWorks

NX

FEA

GD&T

Thermal fluids

High-temperature alloys

Inconel

Education

Bachelor's degree in Mechanical Engineering

Master's degree in Mechanical Engineering

Tools

ANSYS

Abaqus

Job description

Title: Senior Mechanical Engineer – First-of-a-Kind Energy Systems

Location: Bay Area, CA / Denver, CO / Boston, MA (Hybrid / Relocation Available)

Salary: $135,000 – $175,000 + Equity + Full Benefits

The Opportunity:

Tired of incrementally tweaking legacy components?

We are partnering with a premier, heavily funded ($500M+) leader in the energy transition to design and deploy first-of-a-kind clean energy hardware. You won't just be running simulations, you will own complex mechanical sub-assemblies from initial CAD conceptualization through physical prototyping, thermal testing, and plant deployment.

What You’ll Do:

• Design critical high‑temperature, high‑pressure mechanical components for novel clean energy reactors.
• Perform thermal, structural, and fluid FEA simulations (ANSYS / SolidWorks / Abaqus) to validate designs against extreme operating conditions.
• Work directly with machine shops, fabrication vendors, and internal technicians to build and instrument physical prototypes.
• Troubleshoot hardware failures in test rigs and iterate design changes rapidly.

What We’re Looking For:

• BS or MS in Mechanical Engineering (or related field).
• 5+ years of hands‑on mechanical design experience bringing physical hardware from CAD to test.
• Proficiency in SolidWorks/NX and thermal/structural FEA analysis.
• Experience with GD&T (ASME Y14.5), thermal fluid systems, or high‑temperature alloys (Inconel, Stainless 316, Hastelloy).