Senior Mechanical Designer - Structures

About Pacific Fusion

Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.

We are rapidly designing and building a pulsed magnetic fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems.

Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand. You can read more about us in this letter from our founders.

About The Role

Job Overview

Pacific Fusion is looking for a detail-driven

Senior Mechanical Designer

to support our

Powerflow Structures team

. You’ll turn concepts into fully detailed 3D models and fabrication-ready drawings for the large, multi-material structures that deliver high-energy electrical pulses in vacuum fusion experiments.

Responsibilities

- Create and maintain 2D/3D CAD models and detailed assembly drawings in Creo

- Generate and update fabrication and vendor packages: bills of materials, weld maps, machining notes

- Apply GD&T and manufacturing standards to ensure parts meet positional, tolerance, and loading requirements

- Quickly iterate designs based on engineer feedback and lab prototype results

- Collaborate with mechanical engineers, vendors, and fabricators to resolve fit, function, and manufacturability issues

- Keep CAD libraries organized: part numbering, metadata, revision control in PDM/PLM systems

- Participate in design reviews to verify drawing accuracy and completeness

Qualifications

- 5+ years’ hands-on CAD experience (Creo preferred)

- Proven ability to model large, high-precision assemblies and complex sheet-metal or welded structures

- Solid grasp of GD&T, tolerance stack-ups, and Design for Manufacturability best practices

- Comfortable producing detailed drawings for machining, welding, and assembly

- Familiar with PDM/PLM workflows and revision-control processes

- Strong communication skills to clarify design intent with engineers and suppliers

Benefits

- Industry-competitive salary

- Equity plan

- 6% employer 401k matching

- Generous paid time off (including sick leave, vacation, paid family leave)

- Medical, Dental, and Vision insurance

Actual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are outside our listed range.

Pacific Fusion is committed to creating a diverse environment and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Pacific Fusion is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures and throughout employment. If you need assistance or any accommodation, please let us know. Pacific Fusion does not accept unsolicited resumes from recruiters or employment agencies without a fully executed recruitment agreement in place. In the absence of such agreement, Pacific Fusion reserves the right to pursue and hire any candidates without an obligation to pay fees. Agencies are requested not to contact Pacific Fusion hiring managers or employees regarding recruiting services.