Avalanche Energy · 3 hours ago
Senior Mechanical Engineer
Richland, WA
Full-time
Onsite
Senior Level, Lead/Staff
$125K/yr - $190K/yr
8+ years expAvalanche Energy is a Washington-based startup focused on building compact, deployable fusion systems. They are seeking a Senior Mechanical Engineer to take ownership of mechanical system execution at their FusionWERX test facility, responsible for managing critical mechanical infrastructure and coordinating with various teams to ensure the successful operation of fusion experiments.
Electrical DistributionEnergyRenewable EnergySolar
Responsibilities
Own the mechanical system definition and execution of the tritium handling system
Translate technical and safety requirements into vendor scope and enforce them
Manage mechanical interfaces between the tritium system, facility infrastructure, safety systems, and experiment hardware
Lead technical reviews with subcontractors and support fabrication, installation, and acceptance
Coordinate on-site mechanical work at FusionWERX, including routing, space claims, and sequencing
Act as the primary mechanical point of contact for vendors, facilities work, and project integration
Oversee project and facilities management activities to bring the facility online on schedule and within budget
Serve as the on-site mechanical technical lead at FusionWERX
Own long-term knowledge of the tritium handling system, including maintenance and upgrades
Support transition from build-out into operations
Help define and eventually lead local mechanical staff as the facility scales
Act as mechanical 'glue' between operations, safety, facilities, and future projects
Qualification
Required
8+ years of mechanical engineering experience
Experience owning complex mechanical systems end-to-end
Comfort working with subcontractors and vendors rather than doing all fabrication in-house
Strong understanding of mechanical interfaces, requirements flow-down, and integration
Ability to operate independently and make technical decisions with safety and schedule impact
Project leadership experience and organization skills
Preferred
Design and management of safety-critical gas systems
Demonstrating regulatory compliance of gas systems
Vacuum systems, gas handling, or hazardous materials
On-site integration and commissioning experience
Hands-on building experience
Experience working with systems that generate radiation and radioactive material
Forklift certification
Benefits
Excellent medical, dental and vision benefits.
10 paid holidays and company-wide December holiday break.
Generous paid vacation and sick time.
Small, tight-knit team with low barriers to action.
Exposure to a wide variety of problems for unparalleled, hands-on professional growth.
Meaningful equity in the form of stock options.
Company
Avalanche Energy
Avalanche Energy is a fusion energy startup that develops micro-fusion reactors for distributed energy and mobility.
51-200 employees
H1B Sponsorship
Avalanche Energy has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
Funding
Current Stage
Growth StageTotal Funding
$55MKey Investors
Washington state Department of CommerceLowercarbon CapitalPrime Impact Fund
2025-07-23Grant· $10M
2023-04-24Series A· $40M
2022-11-01Seed
Leadership Team
Robin Langtry
CEO
Brian Riordan
Co-Founder and COO
Recent News
2026-01-12
2025-07-23
Company data provided by crunchbase