Building Manager
Commonwealth Fusion Systems
Administration
Milpitas, CA, USA
Posted on May 21, 2026
About Commonwealth Fusion Systems:
Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.
Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers and suppliers to build the energy industry of the future.
We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.
Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.
If that’s you and this role fits, we want to hear from you.
Join the power movement as Building Manager
The Building Manager will be responsible for overseeing day-to-day workplace operations with a focus on employee experience and support services. This role ensures that lab supplies and services, food programs, janitorial services, and general office support run smoothly, creating a clean, safe, and welcoming environment for all employees. The Building Manager will partner closely with vendors, facilities staff, landlord and internal teams to deliver high-quality, reliable services. This is an on-site, Monday through Friday, 8:00am to 5:00pm position that requires occasional overtime to support special projects and activities.
What you'll do:
- Cleanroom PPE & Gowning
- Manage supply and stocking of PPE (gowning, gloves, hairnets, booties, etc…)
- Manage supply and stocking of lab cleaning supplies (wipes, IPA squeeze bottles, etc…)
- Oversee vendor contracts, orders, deliveries, and quality control
- Food Services & Catering
- Manage food and beverage programs, including catering, snacks, and special events
- Oversee vendor contracts, orders, deliveries, and quality control
- Monitor budgets and track usage to ensure cost-effective solutions
- Janitorial & Soft Services
- Coordinate janitorial schedules, cleaning standards, and periodic deep cleans
- Serve as the primary point of contact for janitorial vendors, ensuring service meets company expectations
- Manage other soft services such as waste management, recycling, and pest control
- Vendor & Contract Management
- Participate in negotiating service contracts and monitor vendor performance
- Develop strong vendor relationships to ensure reliable and responsive support
- Employee Experience & Office Operations
- Maintain shared spaces (kitchens, breakrooms, meeting rooms, lobbies) to ensure cleanliness and functionality
- Partner with Execs, HR, and Facilities to support onsite employee engagement activities
- Act as a point of contact for employee requests related to lab supplies, food, office supplies, and janitorial needs
- Manage and maintain employee badging issuance for Milpitas and associated supplies
- Support visitor management system and guest entry. Ensuring CFS compliance while providing a welcoming experience. (IT owns the system)
- Administration & Reporting
- Assist and support our regulatory compliance tasks to keep us compliant with City, County, and State regulations
- Track and reconcile invoices, budgets, and service costs
- Maintain accurate documentation of vendor agreements, service schedules, and compliance requirements
- Provide regular updates on soft services performance and opportunities for improvement
- Special Project examples include
- Leading the stockroom organization and floorstock program
- Oversee/drive 6S projects for lab and office spaces
- Helping to cover shipping/receiving during Logistics Coordinators lunch
- Assist in building programs for managing inventory, critical spare parts, etc.. through Mendix, JIRA, and Confluence
- Support team building activities
- Support office space changes and improvements
- Organize and support holiday events
What we’re looking for:
- 3+ years of experience in a related position
- Experience working with service providers, such as janitorial
- Service-oriented mindset with strong attention to detail and organization
- Ability to build collaborative relationships with employees, vendors, and cross-functional partners
- Crucial soft skills, such as communication, leadership, conflict resolution, and stakeholder management
- Problem-solving skills with a proactive approach
- Proficient in using Confluence and Jira for project coordination, documentation management, and task tracking
- Financial acumen to manage budgets effectively
Must-have requirements:
- Ability to lift up to 25 lbs occasionally
- Perform activities such as stooping, climbing, standing, sitting for extended periods of time
- Willingness to travel or work required nights/weekends/on-call occasionally
- Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics
#LI-Onsite
At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.
We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.
This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.
90000 - 145000 USD a year
Salary range for this full-time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations.
Benefits include:
• 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