or apply directly on Pacific Fusion's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 80 days Pacific Fusion's roles stay open a median of 80 days
- Reposted
- No
- Salary listed
- No 3% of Pacific Fusion's roles list one
- Ghost-job risk at Pacific Fusion
- high 31 stale, 0 reposted of 37 open
- Hiring momentum
- 46 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-22
Measured from postings appearing on and disappearing from Pacific Fusion's own greenhouse board since 2026-08-03. Full hiring picture for Pacific Fusion.
About this role
As a Mechanical Design Engineer at Pacific Fusion, you will focus on the design, development, and validation of mechanical components essential for advanced fusion energy systems. Your responsibilities will include designing vacuum seals, leading experimental testing, conducting research on sealing techniques, and mentoring junior engineers. You will collaborate with multidisciplinary teams to ensure system integration and reliability.
- benefits
- 3/5
- freshness
- 1/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Pacific Fusion as an employer.
What you need
- Bachelor's or Master's degree in Mechanical, Aerospace, or a related engineering field, or equivalent experience
- 5+ years of mechanical design experience with a focus on vacuum seals and systems, including rough, high, and ultra-high vacuum environments
- Strong proficiency in CAD, FEM, and engineering analysis tools
- Proven expertise in tolerance analysis, FMEA, seal design, and mechanical integration
What you get
- 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
Worth weighing
- No specific mention of remote work options
- The role involves high-stakes engineering in a rapidly developing field
- The company is newly founded in 2023, which may imply a dynamic but potentially unstable environment
Summarised from Pacific Fusion's posting. Read the full original.
Listed by Pacific Fusion on their greenhouse job board, last confirmed open on 2026-10-22. PitchMeAI is not the employer.
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