What are the responsibilities and job description for the Electrical Engineer with Inverter & Battery Systems Exp. position at Rigil?
Job Title: Power Systems / Electrical Engineer – Inverter & Battery Systems
Location: San Mateo, California, United States
Type: Contract ||Open for C2C and W2
Interview: Face to Face
Working Conditions: Hybrid (4 days in office, 1 day remote)
Must Have Exp :
- Strong background in power systems and electrical engineering.
- Hands-on experience with inverter-to-battery integration (5 kVA – 25 kVA capacity, 5 kWh – 50 kWh battery systems).
- Proven system-level debugging experience (not just wiring or power flow).
- Practical exposure to high-voltage products in laboratory environments.
- Firmware (FW) development and debugging experience in relevant energy systems.
Roles & Responsibilities
- Participate in design and development of high-power solar/battery control systems.
- Modify software in a Linux embedded environment.
- Handle prototype bring-up, debugging, hardware bug tracking, functional verification, and signal characterization.
- Develop and execute hardware and system test plans, including pre-compliance, environmental, and reliability testing.
- Work directly with Contract Manufacturers in Asia and component suppliers to ensure quality deliverables.
- Contribute to DFMEAs, Design for Quality (DFQ), and Design for Reliability (DFR).
- Develop numerical simulations and data analysis techniques to support creation of control algorithms and decision-support software.
- Create peer-to-peer energy sharing and demand-response schemes.
- Prototype preventive maintenance decision-support software.
- Develop methods to size energy systems under demand uncertainty.
- Design fault diagnosis and failure prognosis algorithms.
Key Qualifications
- Bachelor’s degree in Electrical Engineering (Master’s preferred).
- 5 years of electrical design experience with digital, analog, and power electronic systems.
- Deep knowledge of power conversion systems (converter, rectifier, inverter concepts).
- Experience with Embedded Linux development, Device Trees, and Linux build systems (e.g., Buildroot).
- Prior experience with solar or microgrid systems.
- Extensive hands-on experience with lab instruments (oscilloscopes, spectrum analyzers, electronic loads, signal generators).
- Experience developing digital/analog interfaces for PC-based test systems (Labview, Matlab-Simulink-Simscape, Altium, PLECS, Python).
- Proficiency with numerical simulation software.
- Familiarity with wireless technologies (Cellular, WiFi, Bluetooth).
- Knowledge of XIL product development frameworks (MIL, SIL, PIL, HIL).
- Familiar with international safety and EMC regulations (UL, ISO, IEC, FCC, NEC).
- Strong written and verbal communication skills.
- Ability to thrive in a fast-paced, start-up / high-growth environment.
Physical Requirements
- Ability to lift and carry items weighing up to 25 pounds.
- Ability to stand, walk, and move around for extended periods.
- Ability to climb ladders or stairs and work at heights.
