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 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.

Why This Role Matters

As the Infrastructure Mechanical Engineer, you will be responsible for overseeing the integration of mechanical building system requirements for our nuclear fusion demonstration system. You will work across several teams to develop the building systems which enables us to achieve net facility gain. During construction you will work with design consulting engineering and contractors to ensure a quality installation which can be safely maintained. Following construction, you will be responsible for the operation, maintenance, and future upgrades of the building systems. This position is based in San Leandro, California and will require up to 25% travel to our Los Lunas, New Mexico facility for the first 2 years during the design and permitting process. The role will transition to Los Lunas, New Mexico in 2028, after which the expectation is relocation to New Mexico or near 100% presence in New Mexico.

What You'll Do

Develop facility mechanical equipment requirements and guidelines for

building systems including HVAC, fire protection, plumbing, and other

infrastructure systems.

Assist in the design and development of utility systems including

pneumatic, fluid, and vacuum systems.

Interface with engineers, scientists, and technicians to obtain facility

mechanical inputs.

Work with the Infrastructure Design Team to ensure building mechanical

systems are documented and designed appropriately for permitting

design, construction, commissioning, and operations.

Develop building systems commissioning, maintenance, and operations

plans.

What You Bring

Minimum BS, Mechanical Engineering
Minimum 7+ years of experience working in design, construction, facility

operations, and commissioning for industrial, manufacturing, or

research facilities

Experience with HVAC, process piping, fire sprinkler, and plumbing

systems

Hands on experience with industrial, manufacturing, or research facility

commissioning and operations

Strong multidisciplinary program management skills and ability to work

diligently across cross functional teams

Proactive, doer, and self starter mindset
Cooperative and positive attitude which influences your peers to be the

best versions of themselves

Track record of reliability and ability to drive results

Bonus Points For

PE license
Experience working in a startup
Experience working in industries such as: fusion, energy, aerospace,

chemical

Pay Range:

$138,100—$207,100 USD

TOTAL COMPENSATION AND BENEFITS FOR ELIGIBLE EMPLOYEES

💰 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.

EQUAL OPPORTUNTITY

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.