Principal Electrical Engineer - Power Plant Integration Lead

Mainspring Energy

Menlo Park, Canada

Full Time

Posted September 17, 2026

$221k - $260k

Power Generation

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Listing evidence and provenance

Source: lever View original listing
Freshness: Open in the current public read path; this is not an employer guarantee.Last observed September 29, 2026
Classification: Modern power-system classification not yet published for this listing.Legacy source industry field: Power Generation
Pay provenance: Employer-provided pay

Job Description

As we scale our deployments from Behind-The-Meter (BTM) commercial microgrids to utility-scale Front-of-the-Meter (FTM) power plants and data centers, we are expanding our system boundaries to provide fully integrated, turn-key power solutions.

Key Responsibilities

Take full engineering ownership of Mainspring's next-generation modular power integration skids, actively translating high-level system architectures into fully commercialized, production-ready assets by driving the design from initial concept through validation and final manufacturing release
Define and own the skid-level power topology for utility-scale and data center sites, ensuring seamless electrical and physical integration between Linear Generators, central inverters, step-up transformers, switchgear, and energy storage systems (BESS)
Own detailed skid engineering decisions: hardware selection, spatial layout, thermal management, environmental protection (NEMA/IP rating, seismic/wind loading as applicable), manufacturability, and field serviceability
Partner actively with internal electrical engineering, mechanical engineering, project delivery, operations, software controls, and supply chain teams to extract, synthesize, and freeze comprehensive system requirements
Direct and manage third-party design firms and external manufacturers, serving as the primary technical point of contact to ensure engineering and manufacturing outputs align with technical specifications and quality standards
Drive the scalability and production readiness of larger skid configurations alongside manufacturing suppliers, ensuring the architectural design leverages standardized hardware, reduces site-level installation labor, and is optimized for high-volume replication
Own the skid's cost target and drive design-to-cost trade-offs across hardware selection, supplier strategy, and configuration options
Develop a site design configuration tool that specifies the optimal inverter and skid configuration based upon customer site requirements

Requirements

Bachelor's or advanced degree in Electrical Engineering or a related field
24+ years of direct experience productizing complex, multi-disciplinary industrial systems
Deep technical knowledge of power conversion systems, including medium-voltage (MV) step-up transformers (12.47kV–35kV), central inverters, switchgear, vacuum circuit breakers, protective relays, and high-current busbar/cabling systems
Demonstrated experience driving the engineering lifecycle of modular hardware systems, including a strong grasp of design-to-cost principles, supplier capacity scaling, field reliability, and configuration control
Strong cross-functional leadership skills with a track record of translating diverse technical requirements from electrical, mechanical, and operations teams into a cohesive, manufacturing-ready system design
Demonstrated success directing 3rd-party design, engineering, or Contract Manufacturing (CM) partners from initial concept through to sustained volume production
Strong working knowledge of grid interconnection standards, utility protection schemes, and safety/compliance frameworks (e.g., IEEE 1547, UL 1741 SB/SA, NFPA 70/NEC, NFPA 855)
Skilled in SCADA integration, industrial networking, and designing or certifying control systems to UL 508/508A standards