Senior Electrical Engineer - Balance of System Integration Engineer
About The Position
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 Catalyst 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.
Requirements
- Bachelor's or Master's degree in Electrical Engineering or a related field
- 5+ years of demonstrated experience developing industrial control panels and integrated systems
- Strong understanding of DC/AC power distribution, relay logic, and industrial communication protocols (Modbus, Ethernet/IP)
- Demonstrated experience integrating complex hardware platforms with third-party software controllers or utility-level aggregators
- Experience with UL 508A standards, control panel layout, and thermal management in outdoor environments (-30C to 50C)
- Proven ability to manage complex project dependencies, including hardware fitment within tight spatial constraints
Nice To Haves
- Familiarity with grid-tied inverters, battery pre-charge circuits, or Linux-based industrial PCs
- Experience with PLC programming, Microgrid or SCADA system integration
Responsibilities
- Manage the full design cycle for NEMA 3R and 4X control cabinets, including component selection for industrial PCs, managed switches, and I/O modules
- Design and implement I/O mapping for control and safety systems, including E-Stop synchronization, blackstart triggers, and ground-fault detection using Modbus/TCP-based edge devices
- Architect robust site-level communication networks, including managed VLAN structures and fiber/copper hybrid topologies for high-demand environments
- Be the primary technical interface for outsourced design firms and panel manufacturers, ensuring high reliability designs, UL 508A compliance and manufacturing scalability
- Lead technical reviews and coordinate with contract manufacturers to drive cost-reduction, design-for-manufacturability (DFM), and UL 508A certification
- Manage the physical and electrical interfaces between the linear generator and external balance-of-system equipment, such as external grid-tied inverters
Benefits
- pre-IPO stock options
- benefits
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What This Job Offers
Job Type
Full-time
Career Level
Senior
