Senior Test Engineer

1 Arc Power • Mountain View, CA

8d • Onsite

About The Position

1 Arc Power is seeking a hands-on Senior Test Engineer to develop and execute automated tests for power electronics and renewable energy systems. The role builds test capability for solar photovoltaic (PV), battery energy storage systems (BESS), power conversion systems (PCS), inverters, DC/DC converters, and related grid-connected equipment. The engineer uses LabVIEW and Python to automate electrical testing, integrate laboratory instruments, validate product performance, support safety and compliance certification, and drive design verification and reliability testing from prototype through product release.

The position combines power electronics fundamentals with practical laboratory experience, test automation, troubleshooting, test documentation, and root-cause investigation. Responsibilities span automated test development, high-voltage laboratory testing, DVT, compliance and reliability testing, data analysis, and laboratory operations. The engineer collaborates with hardware, firmware, controls, systems, reliability, compliance, and manufacturing teams and provides technical guidance to engineers and technicians.

The role is based in Mountain View, California, on the Power Systems team. The posting lists a minimum salary of $xxx and a maximum salary of $yyy, plus equity and benefits; the California Pay Range section separately lists $1—$2 USD. The company describes its mission as delivering customer-centric, intelligent clean power systems and expanding access to reliable solar energy.

Requirements

• BS or MS in electrical engineering, electronics engineering, mechatronics, or a related discipline, or equivalent practical experience.
• At least 5 years of hands-on test engineering experience in power electronics, renewable energy, energy storage, industrial power systems, or a closely related field.
• Strong LabVIEW skills for automated test development, instrument control, data acquisition, and test sequencing.
• Strong Python skills for instrument automation, data processing, analysis, visualization, and test/report automation.
• Practical experience with SCPI/VISA instrument control and integrating multiple instruments into an automated test system.
• Experience testing high-voltage and high-power equipment using appropriate safety practices.
• Ability to read schematics, interpret electrical specifications, develop test procedures, and troubleshoot complex hardware/software interactions.
• Experience with DVT, test documentation, failure tracking, and root-cause investigation.

Nice To Haves

• Experience with PV simulators, regenerative grid simulators, battery simulators or cyclers, and bidirectional DC power equipment.
• Experience with grid-connected inverters, PCS, BESS, DC/DC converters, or utility-scale solar systems.
• Familiarity with UL 1741, UL 62109, UL 9540, UL 9540A, IEEE 1547, IEEE 1547.1, and IEC 62477.
• Experience with reliability testing, accelerated life testing, thermal or power cycling, and environmental chambers.
• Experience with CAN, Modbus, Ethernet, serial communication, Git, and automated test software architecture.
• Experience with power analyzers, high-voltage differential probes, current probes, DAQ systems, and synchronized measurements.
• Experience supporting NRTL certification testing or working with external compliance laboratories.
• Familiarity with battery test safety, high-energy DC systems, and laboratory interlock design.

Responsibilities

• Develop, maintain, and debug automated LabVIEW and Python test systems for power electronics, solar, and energy storage products.
• Create reusable test frameworks, instrument drivers, sequence control, data logging, reporting, and automated pass/fail evaluation.
• Interface with laboratory equipment using SCPI, VISA, Ethernet, USB, serial, CAN, and other applicable communication protocols.
• Develop repeatable, traceable test scripts and procedures for engineering validation and production use.
• Manage test software revisions, calibration records, test configurations, and measurement-system documentation.
• Develop and execute tests for PV inverters, PCS, bidirectional converters, DC/DC converters, battery interfaces, and grid-connected power systems.
• Characterize efficiency, power quality, dynamic response, transient behavior, thermal performance, protection functions, and operating limits across varied operating conditions.
• Troubleshoot electrical, control, firmware, instrumentation, and system-integration issues in high-voltage laboratory environments.
• Configure and operate PV and solar-array simulators, regenerative grid simulators, grid emulators, battery simulators and cyclers, bidirectional DC sources, programmable electronic loads, and laboratory measurement equipment.
• Define safe test setups, instrument ranges, grounding, interlocks, emergency shutdowns, and measurement uncertainty considerations.
• Develop and execute DVT plans, test procedures, test matrices, and detailed reports against product requirements.
• Translate requirements into test cases with defined setups, operating conditions, stress levels, sample sizes, and acceptance criteria.
• Perform functional, performance, stress, endurance, environmental, thermal, and fault-condition testing.
• Track failures and anomalies, coordinate root-cause investigations, and verify corrective actions through regression testing.
• Support design reviews and release decisions with objective, traceable test evidence.
• Support product compliance testing and documentation for applicable UL and IEC standards, coordinating test setups, samples, procedures, data packages, and issue resolution with compliance engineers and external certification laboratories.
• Maintain records of test configurations, calibration status, raw data, deviations, and results.
• Plan and execute reliability and endurance tests, monitor test articles, analyze failure trends, and recommend design or process improvements.
• Analyze test data using Python and numerical, statistical, and visualization tools; automate report generation, plotting, data reduction, and requirement comparisons.
• Produce test plans, procedures, reports, failure summaries, and engineering recommendations, ensuring results are reproducible and traceable.
• Help maintain a safe, organized, calibrated, and reliable high-voltage power electronics laboratory; develop equipment checklists, operating procedures, and preventive-maintenance practices.
• Collaborate with hardware, firmware, controls, systems, reliability, compliance, and manufacturing engineers, and provide hands-on troubleshooting and technical guidance to engineers and technicians.

Benefits

• Competitive compensation package.
• Health insurance: 100% of employee and 75% of dependent premiums covered under a Gold-level PPO plan.
• Dental and vision insurance: 50% of employee premiums covered.
• 401(k) plan with a 6% employer match.
• Equity.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior