Senior Electrical Engineer - Balance of System Integration Engineer
TLDR
Versatile engineer anchors site packaging and power integration, owning high-level requirements for modular power conversion skids and the ICP/site communications interface.
Define high-level architectural requirements and electrical boundary constraints for modular, deployment-ready power conversion skids scaling from local microgrids to utility-scale plants
Manage 3rd-party skid design firms and fabrication partners to ensure alignment with technical standards, cost targets, and project timelines
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
You should have...
Bachelor's or Master's degree in Electrical Engineering or a related field.
5+ [Senior] or 8+ [Staff] years of demonstrated experience developing industrial control panels and integrated systems
Demonstrated experience in systems integration, modular skid packaging, or industrial control platform development
Strong understanding of industrial DC/AC power distribution, grid-tied inverters, transformers, grounding architectures, SCADA and safety standards
Strong understanding of 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
Familiarity with grid-tied inverters, battery pre-charge circuits, or Linux-based industrial PCs.
Experience with PLC programming, Microgrid or SCADA system integration
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.
Benefits
Stock Options
pre-IPO stock options
Mainspring Energy is pioneering a new category of power generation with its Linear Generator, delivering flexible, onsite power solutions that cater to the needs of commercial, industrial, and utility customers. By offering reliable and clean energy for applications like EV charging and data centers, Mainspring positions itself as a key player in the transition to a net-zero carbon grid, standing out with its fuel flexibility and near-zero emissions technology.
- Founded
- Founded 2010
- Employees
- 201-500 employees
- Industry
- renewables & environment
- Funding stage
- Series C+
- Total raised
- $810M raised