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This position will have travel to Sulphur Springs, TX (HQ).

We are seeking a Sr Electrical Engineer to lead the development of advanced Energy Storage Systems (ESS) for residential and Commercial & Industrial (C&I) applications. This role requires deep expertise in power electronics, Li-ion battery systems, and system-level design, along with the ability to guide cross-functional teams from concept through production. The ideal candidate will serve as a technical leader and subject matter expert, driving innovation, reliability, and compliance across all stages of product development.

Key Responsibilities:

System Design & Development

• Design and review power electronics systems such as inverters, power converters, PV MPPT charge controllers, and bidirectional DC-DC converters
• Define system architectures, power topologies, and keycomponentselections including magnetics, semiconductors, and passive components.
• Develop single-line diagrams, wiring diagrams, schematics, and cable schedules
• Establish grounding strategies, protection schemes, and isolation methods for high-power systems
• Ensure compliance with UL, IEC, and IEEE standards relevant to power electronics and grid interconnection.
• Participate in DFMEA,DVTand EVT/PVT activities for new product development.

Energy Storage & Equipment Integration

• Serve as Subject Matter Expert (SME) on energy storage systems, including residential and C&I ESS applications
• Apply strong knowledge of Li-ion battery technologies and Battery Management Systems (BMS)
• Evaluate and analyze energy storage technologies, products, and vendors, support vendorselectionand system implementation.

Equipment Specification & Integration

• Develop or direct the creation of equipment specifications, procurement plans, and factory acceptance testing (FAT) for batteries, grid-tied inverters, battery enclosures, and related components

• Ensure designs align with applicable safety and certification standards (UL 9540, UL 1973, and related frameworks)
• Coordinate electrical design with mechanical layouts and enclosure constraints

Technical Analysis & Risk Management

• Identifyand mitigate electrical risks, including fault current, protection coordination, and thermal performance
• Guide technical decisions through data-driven analysis and engineering trade-off evaluations
• Diagnose product issues and propose effective, scalable solutions

Cross-Functional Collaboration

• Collaborate closely with firmware, mechanical, manufacturing, and validation teams to ensure seamless product integration
• Coordinate electrical designs with mechanical constraints and enclosure requirements
• Support broader business functions including product strategy and customer engagement
• Interface with clients, vendors, and external stakeholders as needed.
• Support Design for Testability (DFT) and Design Verification Testing (DVT) initiatives early in the design phase.

Documentation & Lab Management

• Maintain and continuously improve the lab’s test infrastructure, including test benches, instrumentation, load banks, battery cyclers, and environmental chambers, ensure calibration, and support validation testing.
• Develop production-ready electrical documentation to support manufacturing and system integration

Leadership & Mentorship

• Provide technical leadership, mentorship, and guidance to junior engineers
• Lead and contribute to project planning, prioritization, and resource allocation
• Support broader business functions including product strategy, roadmap development, and customer engagement
• Regularly meetand correspond with clients and external partners

• All other dutiesassigned.

Required Skills and Attributes:

• Master’s degree in electrical engineering or a related field (preferred)
• Minimum of8years of experience managing or leading engineering teams
• Proven experience with system-level development and multidisciplinary integration
• Strong knowledge of communication protocols such asCANbus, RTU/TCP Modbus, and I2C
• Hands-on experience with residential and C&I energy storage systems
• Familiarity with UL standards and certification processes (UL 9540, UL 1973)
• Strong analytical, troubleshooting, and problem-solving skills
• Excellent written and verbal communication skills
• Experience working with grid-tied and hybrid energy systems
• Knowledge of quality management systems (ISO 9001, Six Sigma) and continuous improvement methodologies
• Strong project management skills with the ability to prioritize tasks and manage resources effectively

Physical Requirements:

• This position may require the ability to perform tasks that involve standing, walking, lifting 50+lbs, bending, stooping, computer work, working with live electricity, and other physical activities. Candidates should be able to meet these physical demands with or without reasonable accommodations.

EEO Statement:

EG4 Electronics is an equal opportunity employer and administers all personnel practices without regard to race, color, religious creed, sex, gender, age, ancestry, national origin, mental or physical disability or medical condition, sexual orientation, gender identity or expression, marital status, military or veteran status, genetic information, or any other category protected under federal, state, or local law.