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Senior Systems Engineer - Tritium Systems

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 seeking an exceptional Senior Systems Engineer to join our dynamic team and create the path to commercial fusion energy. You will lead the development, acquisition, and integration of tritium systems into our advanced fusion energy facilities. This role requires a top-tier combination of technical expertise, problem-solving skills, and a proactive mindset to meet the exciting challenges in the field of fusion energy. As a Senior Systems Engineer, you will lead collaborative and challenging projects and play a vital role in driving the overall development effort

Responsibilities:

  • Work with engineering teams developing tritium-exposed equipment to identify tritium processing equipment requirements

  • Work with engineering teams developing tritium-exposed equipment and operations to identify hazard mitigation equipment requirements

  • Act as point-of-contact and technical representative to contractors developing and delivering tritium processing and hazard mitigation equipment for our tritium operations

  • Oversee the creation of detailed design documentation and specifications

  • Lead the integration and implementation of tritium processing and hazard mitigation equipment

  • Coordinate with multidisciplinary teams (including electrical, software, and manufacturing engineers) to integrate system-level designs

  • Act as in-house technical subject matter expert for all tritium processing and hazard mitigation equipment operating in our facility

  • Lead the implementation of design changes and improvements to tritium equipment as needed for fusion system and facility upgrades

  • Work closely with vendors and manufacturers to ensure designs are practical, cost-effective, and manufacturable

  • Conduct design reviews and provide critical feedback to improve system performance and reliability

  • Participate in risk assessments and develop mitigation strategies

Qualifications:

  • Bachelor’s Degree in Chemical, Nuclear Engineering, or Mechanical Engineering with equivalent experience is required. A Master’s Degree or PhD is a plus

  • 10+ years work experience as a Systems Engineer

  • Extensive knowledge of chemical process equipment and the relevant design safety standards

  • Extensive knowledge of radiological material hazards and mitigations

  • Advanced knowledge of process schematics, piping & instrumentation diagrams, and fabrication & assembly drawings

  • Proven track record of successfully developing and managing process equipment

  • Excellent leadership skills, with the ability to mentor and guide junior engineers

  • Excellent problem-solving skills, with a strong attention to detail

  • Experience in hands-on engineering design, rapid iteration, and creative problem solving in a laboratory setting

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

Average salary estimate

$190000 / YEARLY (est.)
min
max
$160000K
$220000K

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Affordable fusion power inspired by nature. We’re taking an approach based on established science and designing for scale from the beginning. We will be sharing more soon.

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Full-time, onsite
DATE POSTED
August 25, 2025
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