Senior Manufacturing Engineer - NPI Fremont, CA

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 pulser-driven inertial 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 .

This role will drive transitioning prototype components to production-ready pulser systems.

• Own end-to-end manufacturing processes for pulser moduleassembly, from work instruction development through buildcompletion and acceptance
• Manage the transition of new electrical components fromthe design and prototyping phase into full-scale production and integration for new product introduction
• Work alongside the technicians to provide fast solutions thatcan be quickly executed to keep the build progressing
• Support documentation handoff to the production team forthe build processes as well as issues and their respectiveresolutions
• Manage build schedule using Microsoft project to communicate within the company
• Partner with design engineering to provide manufacturingfeedback, drive DFM improvements, and support first articlebuilds
• Identify and resolve production non-conformances, leadingroot cause analysis and implementing corrective actions toprevent recurrence
• Define and develop tooling, fixtures, and equipment requirements to support safe, efficient, and repeatableassembly operations
• Track and report production metrics — cycle time, yield, firstpass rate — and drive initiatives to hit and exceed targets
• Support the scale-up of assembly operations as Pacific Fusion transitions from low-rate initial production to higher volume output
• Support schedule management by clearly defining steps to completion

• 3–7 years of manufacturing or process engineering experience in a hands-on production environment
• Demonstrated experience leading or mentoring technician son a production floor
• Strong understanding of mechanical assembly processes,work instruction development, and production documentation
• Hands-on experience with complex electromechanicalassembly — high voltage, pulsed power, precision mechanical, or similarly demanding hardware preferred
• Familiarity with quality management systems, non-conformance processes, and root cause analysismethodologies (8D, 5-Why, Fishbone)
• Ability to read, interpret, and create engineering drawings,schematics, and GD&T
• Comfortable working in an early-stage, fast-moving environment where processes are still being defined
• Hands on experience working at a startup building theprototype units
• Familiarity with standard machining processes and capableof running equipment

• Experience in aerospace, defense, energy, or other high-complexity hardware industries
• Familiarity with Lean manufacturing, Six Sigma, or other continuous improvement frameworks
• Experience supporting first-of-kind or prototype-to-production transitions
• Exposure to high voltage or pulsed power systems
• BS in Mechanical, Manufacturing, Electrical, or Industrial Engineering (or equivalent experience)
• Experience using CREO

Pay Range:

$138,100 - $207,100 USD

Equity plan

6% employer 401k matching

Gener…