Systems Test Engineer

Overview

At Opti Grid LLC, we’re accelerating the transition to clean transportation by building the next generation of DC Fast Chargers—integrated with large-scale energy storage and cloud-connected intelligence for network-wide optimization.

We’re looking for a Systems Test Engineer to join our growing engineering team in Longmont, CO and help validate and refine the design of our EV charging and energy storage systems. This role is perfect for someone who thrives in a hands-on R&D environment, loves solving complex hardware/software integration challenges, and wants to see their work directly impact the performance and reliability of clean energy infrastructure.

• Develop and execute design validation test plans for high-voltage power systems, battery modules, and embedded controls.
• Work closely with electrical, firmware, and mechanical teams to evaluate system-level performance, safety, and interoperability.
• Design and implement automated test setups (Python, LabVIEW, or similar) to accelerate verification cycles.
• Perform root-cause analysis and system debug during prototype and pilot builds.
• Contribute to requirements definition and design reviews, ensuring testability and reliability are built in from the start.
• Ensure compliance with UL, IEC, and internal safety standards.

• Bachelor’s Degree in Electrical Engineering, Software Engineering or equivalent from an accredited institution
• 3–7 years of experience in system validation or hardware testing, ideally in EVSE, battery energy storage, or power conversion
• Strong understanding of DC power electronics, BMS systems, and high-voltage safety
• Experience with test automation, data acquisition, and debug tools (LabVIEW, Python, oscilloscopes, CAN analyzers, etc.)
• Excellent analytical, documentation, and cross-functional communication skills
• Ability to work with limited supervision
• Flexibility and adaptability to work in a dynamic startup environment

• Test experience preferably in the automotive industry, industrial setting, energy industry
• Knowledge of EV charging standards a plus
• Experience with High Voltage and high current a plus
• Familiarity with high speed bus hardware and protocols (CANbus, Modbus, Ethernet)
• Familiarity with UL 2202, UL 1973, UL 9540, and IEC 61851-23/24 standards

• Shape the future of clean transportation and grid-integrated energy systems
• Work with a multidisciplinary team pushing innovation in EV infrastructure
• Grow your expertise in a fast-paced, mission-driven environment

• Short- & Long-Term Disability Insurance
• Life Insurance

We offer fair and equal opportunities to all candidates and team members regardless of race, color, religion, sex, pregnancy, sexual identity, national origin, citizenship, marital status, disability status, parental status, protected veteran status, or any other characteristics protected by law. Opti Grid LLC believes in hiring individuals only based on their qualifications and experiences that meet our business requirements to fill the positions.