R&D Test Technician

SIGNATURE SOLAR LLC • Sulphur Springs, TX

14h

About The Position

The R&D Test Technician is responsible for validating the functionality, reliability, and compliance of EG4 inverters, batteries, and ESS products. This role requires operating at a Test Engineer level: designing tests, identifying bugs, driving root-cause analysis, and ensuring issues are resolved before release.

Requirements

• Associate’sdegree, technical diploma, or equivalent in Electrical Engineering, Renewable Energy, or related field.
• 3+ years’ experience testing power electronics, inverters, or battery systems.
• Strong knowledge of AC/DC systems, grounding, and safety protocols.
• Experience with firmware testing and debugging (e.g., Modbus, BMS communication).
• Proficiencywith oscilloscopes, multimeters, load banks, and test equipment.
• Strong problem-solving and documentation skills.

Nice To Haves

• Familiarity with UL/IEC safety standards is preferred.

Responsibilities

• Test inverters, batteries, and ESS in grid-tied, off-grid, and hybrid applications.
• Design and run test plans for firmware updates, features, and compliance validation.
• Identify, reproduce, and document firmware/hardware bugs; verify fixes with engineering.
• Perform stress testing, accelerated life testing, and real-world simulation.
• Maintainclear test reports, regression logs, and documentation.
• Support certification testing (UL 1741, UL 1973, UL 9540/9540A, IEC 62109).
• Provide usability and installer feedback for product improvements.
• Mentor junior technicians on safe practices and structured debugging.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Associate degree