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Mainspring Energy manufactures fuel-flexible, low-emissions local power solutions using linear generator technology for Fortune 500 companies, data centers, and utilities. This Staff Project Engineer role is part of the Project Delivery department and focuses on grid-scale deployments of 10MW and above.
You will lead the overall technical definition and direction of assigned projects, including site layouts, single-line diagrams, equipment selection, sequences of operation, plant controls, communication, network security, protection and metering schemes, grounding, code and grid code compliance, fuel systems, and safety systems. You will serve as the technical integrator across electrical, mechanical, civil, controls, fuel, and utility scopes, providing design coordination, value engineering, and interface reviews to ensure all disciplines integrate into one buildable, compliant project.
Key responsibilities include providing technical support to the interconnection team with plant data and equipment models; defining how plants serve and protect large loads including islanding, load-following, and transfer schemes; guiding selection and specification of medium-voltage equipment such as switchgear, breakers, transformers, protective relays, and revenue meters; working directly with clients and engineering partners to translate requirements into official plan sets; conducting engineering reviews of site assessments and power system studies; monitoring changes to regional grid codes and standards; leading final grid code compliance demonstrations including NERC/IEEE model validation; and supporting commissioning and energization activities. You will also participate in improvement initiatives using Lean methods and document execution challenges to create training materials for future deployments. Travel to project sites is required based on availability.
REQUIREMENTS:
- B.S. degree in Electrical Engineering or related discipline (power systems emphasis preferred; Mechanical, Systems, Controls, or Mechatronics considered). Technical degree with equivalent experience may substitute.
- 8+ years of proven working experience as a project engineer or power systems engineer, including at least 2–5 years in a direct contributing role on grid-scale generation or storage projects with experience in Solar PV, Central Inverters, Battery Energy Storage Systems, Modular Generation Packages, Microturbines, Reciprocating Engines/Gensets, Large Fuel Cells, Cogen/CHP, Plant Controllers/DERMS, or Virtual Power Plants.
- Essential experience with most of the following: project management, medium-voltage (5 kV+) distribution and protection system design, data acquisition and control systems (SCADA/PPC/EMS), technical drawings and construction plan sets, and electrical system troubleshooting.
- Familiarity with construction processes, sequencing, and contractor management for large generation sites.
- Strong grasp of balance-of-plant interfaces including equipment foundations, structural layouts, fuel/gas delivery systems, and hazardous area requirements, with proven ability to review and approve multi-disciplinary EPC design packages.
- Familiar with NEC, NESC, IEEE (1547, 2800, C37 series), UL 1741, utility interconnection handbooks, regional grid codes, and proper sizing/installation/use of power system equipment.
- Working knowledge of FERC interconnection requirements and NERC reliability standards as applied to generation facilities.
- Comprehension of medium-voltage protection functions, utility-grade protective relays (e.g., SEL), and revenue metering.
- Ability to interpret power system study results (load flow, short circuit, coordination, arc flash, power quality, dynamic/ride-through) from tools like ETAP, SKM, CYME, or PSS/E.
- Familiarity with SCADA systems and power plant controllers for voltage regulation and dynamic power control, plus industrial network protocols (DNP3, Modbus, IEC 61850).
- Excellent decision-making, communication, time management, documentation, and organizational skills with self-directed ownership mindset.
