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Pacific Fusion · 19 hours ago

Senior Mechanical Engineer - Vacuum Systems

Los Lunas, NM

Full-time

Onsite

Senior Level

Pacific Fusion is a company dedicated to powering the world with clean energy through innovative fusion technology. The Senior Mechanical Engineer - Vacuum Systems will lead the design and implementation of advanced vacuum systems critical for the development of fusion systems.

EnergyNatural ResourcesRenewable Energy

Responsibilities

Design, analyze, and test advanced vacuum systems for target area chambers and diagnostics

Select and size vacuum components, including pumps, seals, ducts, and valves, ensuring performance in particle-free cryogenic environments

Rapid prototyping for fusion technology applications

Lead engineering activities from concept development through final onsite commissioning of vacuum equipment and systems

Conduct detailed thermodynamic, heat transfer, fluid mechanics, and structural mechanics analyses to support system development

Perform experiments to characterize materials for outgassing, permeability, and vacuum compatibility

Provide solutions to field issues related to vacuum system design and performance

Collaborate cross-functionally to educate and negotiate design requirements within a multidisciplinary team

Qualification

High vacuum systems designVacuum modeling toolsThermodynamic analysisMechanicalAerospace EngineeringHands-on vacuum componentsASME BPVCB31.3 codesCollaboration skillsProblem-solving skills

Required

B.Sc., M.Sc., or Ph.D. in Mechanical or Aerospace Engineering

Proven expertise in high vacuum systems design, analysis, and construction

Hands-on experience with vacuum components: chambers, pumps, seals, valves, ducts, and clean room techniques

Proficiency in vacuum modeling tools (e.g., COMSOL, MolFlow, or OpenFOAM) and FEA/CFD analysis

Familiarity with ASME BPVC and B31.3 codes

Experience with radioactive or toxic gas vacuum systems, novel vacuum pumps, or material characterization

Benefits

Equity plan

6% employer 401k matching

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

Medical, Dental, and Vision insurance

Company

Pacific Fusion

Pacific Fusion focuses on renewable energy generation, emphasizing affordable fusion power inspired by nature.

Founded in 2023

Fremont, California, USA

51-200 employees

https://www.pacificfusion.com

Funding

Current Stage

Growth Stage

Total Funding

$900M

2024-10-25Series A· $900M

Leadership Team

Will Regan

Chief Scientist

Recent News

Crunchbase News

A Little Background On Fusion Funding And TAE Technologies, The Company Merging With Trump Media

2025-12-18

Benzinga.com

These 5 Fusion Startups Have Raised Billions Backed By Bill Gates, Sam Altman, And Google — Here's When They Promise Real Power

2025-10-03

East Bay Times

Newsom signs legislation to bolster fusion, quantum technologies

2025-10-03

Company data provided by crunchbase