Commonwealth Fusion Systems · 18 hours ago
Manager, Mechanical Engineering
Devens, MA
Full-time
Onsite
Mid, Senior Level
$110K/yr - $185K/yr
5+ years expCommonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. The Manager of Mechanical Engineering is a hands-on leader accountable for the design, fabrication, and performance of specialized manufacturing equipment and tooling.
Clean EnergyElectrical DistributionEnergyEnvironmental EngineeringRenewable Energy
Responsibilities
Lead a team of mechanical engineers to plan and deliver on near to medium-term objectives for custom machinery and specialized tooling
Translate department-level strategy into actionable group objectives and manageable project timelines
Define and optimize mechanical engineering workflows and internal standards to improve design quality and team efficiency
Independently manage technical risks and propose solutions for complex hardware challenges and equipment failures
Oversee the full design lifecycle, from initial concept and CAD modeling to hardware procurement and assembly
Establish best practices for mechanical design, including standards for drafting, GD&T, and design-for-manufacturability
Manage all aspects of the group's talent, including hiring, training, and setting clear performance expectations
Coach and mentor team members, actively contributing to their technical growth and professional career development
Build relationships across the organization to influence design direction and resolve technical conflicts with stakeholders
Promote a culture of resilience and grit, ensuring the team consistently follows through on assignments despite technical hurdles
Qualification
Required
Bachelor's degree in Mechanical Engineering or a related engineering field
5+ years of experience as a mechanical engineer working on complex mechanical systems or capital equipment
At least 2 years of direct management experience leading engineering teams, including hiring and performance management
Expertise in custom tooling design and a strong value for simplicity and serviceability in mechanical hardware
Proficiency in advanced CAD modeling and drafting, with a deep understanding of GD&T standards
Proven ability to manage external vendors, job shops, and fabrication partners to deliver hardware to specification
Experience with various fabrication techniques, such as CNC machining, welding, and additive manufacturing
Ability to lift up to 50 lbs occasionally
Perform activities such as typing, standing, stooping, and sitting, for extended periods of time
Dedication to safety to mitigate hazards that may include heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics
Willingness to occasionally travel or work required nights/weekends/on-call
Preferred
Experience in a Greenfield or Brownfield manufacturing startup environment
Proficiency with NX and Teamcenter
Working knowledge of thermal/mechanical design considerations for cryogenics or high-field magnets
Experience driving equipment acceptance tests (FAT & SAT) and estimating CapEx for new designs
Benefits
Competitive compensation with equity
13 Company-wide Holidays
Flexible vacation days
10 sick days
Generous parental leave policy
Health, dental, and vision insurance
401(k) with employer matching
Professional growth opportunities
Team-building activities
Company
Commonwealth Fusion Systems
Commonwealth Fusion Systems designs and develops commercial fusion energy systems to produce clean energy.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
$2.88BKey Investors
GoogleUS Department of EnergyTiger Global Management
2025-08-27Series B· $863M
2025-06-30Corporate Round
2024-06-06Grant· $15M
Leadership Team
Robert Mumgaard
Chief Executive Officer and Co-Founder
Martin Greenwald
Cofounder
Recent News
2026-02-03
Crowdfund Insider
2026-01-22
Company data provided by crunchbase