Senior Mechanical Engineer - Vacuum Systems at Pacific Fusion in San Leandro, CA | Kablio

Role

Description

seal research

test campaigns

fmea analysis

seal design

experimental testing

integration guidance

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

Articles

Careers at Pacific Fusion

Pacific Fusion LinkedIn

Pacific Fusion Crunchbase Profile

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

Articles

Careers at Pacific Fusion

Pacific Fusion LinkedIn

Pacific Fusion Crunchbase Profile