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Director of Fleet Operations

Mainspring Energy

Mainspring Energy

Operations
Menlo Park, CA, USA
Posted on Oct 21, 2025
Company Overview
Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid-scale operations. The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near-zero NOx emissions.
Backed by top-tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Cayalyst Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we’re quickly scaling for international expansion.
Inspired by our vision of the affordable, reliable, net-zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we’re hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers.
We are looking to build relationships with people who share our values:
Pragmatic Optimism. Building a new category of world-class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth.
Excellence without Ego. We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world-class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors.
Proactive Collaboration. The integration and cross-disciplinary nature of Mainspring’s business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers.
More information can be found at www.mainspringenergy.com
Job Overview
Mainspring Energy is seeking a highly experienced and strategic Director of Fleet Operations to manage the preventive maintenance and emergency response for our fleet of linear generators as we accelerate their deployment to customer sites. This is an ideal opportunity for a proven leader to apply their operational and strategic skills in a dynamic, challenging, and high-growth environment.

What you'll do:

  • Team Leadership: Lead, mentor, and develop the O&M team, including geographically distributed field service technicians and supervisors.
  • Performance Management: Manage key operational metrics, including equipment Availability, Mean Time to Repair (MTTR), First Time Fix Rate (FTFR), Customer Satisfaction, and adherence to service level agreements (SLAs).
  • Fleet Maintenance: Direct the team in all aspects of fleet maintenance, including troubleshooting, repairs, and preventive maintenance. This encompasses planning of routine tasks such as seal and filter replacements, periodic inspections, and the management of sensors, controls, and software.
  • Safety and Emergency Response: Lead the field safety team, ensuring the implementation of training, processes, and controls to safeguard both personnel and equipment. In emergencies, coordinate resources, response, and both internal and external communications.
  • Process Improvement: Standardize processes among teams to ensure the effective and efficient resolution of complex operational problems.
  • Strategic Planning: Develop comprehensive business plans, including budget allocation, hiring strategies, shift schedules, tooling, and inventory stocking levels.
  • Training Development: With the Training Manager, lead the creation of a structured Tier 1 Maintenance training program. This program should expedite the proficiency of new field service technicians and reseller partners in performing maintenance tasks.
  • Cross-Functional Collaboration:
  • Work closely with Sales and Product leaders to deliver exceptional customer service. This includes early engagement with the Installation and Commissioning resources within the Sales team.
  • Engage Fleet Operations and Analytics (FOA) and Customer Success teams for monitoring, advanced diagnostics, and customer communications.
  • Collaborate with Engineering leaders to continuously improve the product by efficiently communicating findings and operational data from customer sites.
  • Collaborate with the air compliance team to ensure timely data submission to agencies.
  • Participate in defining contract structures in cooperation with Sales, Legal, and executive teams.
  • Vendor Management: Evaluate and oversee the development of potential partnerships with contractors.

What you'll bring:

  • Leadership Experience: Previous experience in a leadership role managing technical service teams operating at customer sites.
  • Adaptability: Demonstrated success in dynamic, frequently changing, and geographically dispersed work environments.
  • Leadership Style: A strategic yet hands-on leadership approach—able to take responsibility for the team, mentor staff, and lead by example.
  • Regulatory Knowledge: Understanding of labor laws.
  • Workforce Planning: Ability to design effective shift schedules.
  • Vendor Management: Experience in managing contractors and developing potential external partnerships.
Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.
In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.