Conduct research into novel sealing techniques; define, execute, and evaluate test campaigns
Document sealing processes, validation data, and lessons learned
Perform FMEA and tolerance stack-up analyses to ensure seal reliability and system safety
Mentor and support junior engineers on vacuum system design and integration challenges
Design test assemblies for seal validation and risk-reduction
Design and analyze large, high-performance vacuum seals for water-to-air, air-to-high-vacuum, and water-to-high-vacuum transitions
Lead experimental design and testing of vacuum seals in collaboration with internal teams, external vendors, and academic partners
Provide subject-matter expertise in sealing strategies and guide the integration of vacuum seals into the fusion target area
Review and present technical work across multidisciplinary teams; contribute to system-level integration discussions
Requirements
tolerance analysis
fmea
cad
fem
8+ years
mechanical degree
Proven expertise in tolerance analysis, FMEA, seal design, and mechanical integration
Strong proficiency in CAD, FEM, and engineering analysis tools
8+ years of mechanical design experience with a focus on vacuum seals and systems, including rough, high, and ultra-high vacuum environments
Bachelor's or Master's degree in Mechanical, Aerospace, or a related engineering field, or equivalent experience
Benefits
6% employer 401k matching
Equity plan
Generous paid time off (including sick leave, vacation, paid family leave)
Industry-competitive salary
Medical, Dental, and Vision insurance
Training + Development
Information not given or found
Interview process
Information not given or found
Visa Sponsorship
Information not given or found
Security clearance
Information not given or found
Company
Overview
$900M
Series A Investment
The company secured over $900 million in Series A funding led by top-tier investors.
135k ft²
Facility Size
Construction is underway in a 135,000-square-foot facility in San Leandro.
150 Modules
Fusion Target
They aim to use 150 modular units to achieve net facility gain by 2030.
Led by founders from NASA, DOE labs, and genomics—Eric Lander (co‑founder/CEO) and Keith LeChien (CTO) steer the technical vision.
They’re pioneering pulsed magnetic inertial fusion: stacking modular ‘bricks’ in Marx generators to drive fuel capsules to fusion.
Built in a 135k ft² San Leandro facility, the team of ~60 engineers and scientists is constructing full-scale pulser modules.
Collaborations with General Atomics and US national labs accelerate scaling and prototype testing.
Their demonstration system in Livermore targets research-grade operations ahead of commercial rollouts.
By focusing on mass‑manufacturable modules and affordable supply chains, they aim to bring fusion to market within a decade.
Culture + Values
Talented, humble builders
United by a shared sense of urgency — to meet rapidly growing global energy demand while addressing climate change
Shared sense of responsibility — to each other, to our investors, to our country, and to our planet
Committed to collaborating with the broader scientific community… regularly share and publish our research… committed to partnering with communities, regulators, policymakers, suppliers, industry peers, and customers
Environment + Sustainability
$900M+ Funded
Series A Financing
Raised $900 million in Series A funding tied to technical milestones for advancing clean energy solutions.
>100 MJ Output
Fusion Energy Yield
Collaborating with partners to achieve high-yield fusion energy output in inherently safe, carbon-free systems.
2030 Target
Net Facility Gain
Technology aims to achieve net facility gain by 2030, producing more fusion energy output than stored energy input.
Mission: power the world with abundant, affordable, clean energy
Building pulsed magnetic inertial fusion system using widely available materials and mass‑manufacturable modular units ('bricks' and 'modules') to support scalable clean power
Collaborating with National Lab partners (General Atomics, LLNL) to drive advances toward high‑yield fusion in inherently safe, carbon‑free systems
Inclusion & Diversity
No publicly available DEI strategy or gender-related statistics found on website or LinkedIn profiles