Senior Test Engineer

About the Role

Key Responsibilities

Test Automation

• Build and maintain Python/pytest test scripts and frameworks in Visual Studio Code that drive devices over serial, CAN, Modbus, Ethernet, and wireless interfaces.
• Integrate test suites into CI/CD so they run on every firmware build, managed in Git with peer code reviews.

Firmware Validation & Regression

• Turn requirements and firmware specs into traceable test plans covering functional, boundary, stress, power-cycling, and fault-injection cases.
• Validate OTA updates, bootloaders, communication protocols, battery and power-management behavior, and safety features.
• Build and maintain hardware-in-the-loop (HIL) benches and run environmental and inverter system-level testing on the Yotta Block.
• Own the regression strategy (smoke, sanity, full), run cycles for every release candidate, and separate real defects from test or environment issues.

Team Leadership

• Lead and mentor test engineers and technicians, set priorities, and support hiring and onboarding.
• Set test standards and coding guidelines, and own lab organization, safety, 5S practices, and test fixtures.
• Represent test in sprint planning, design reviews, and release go/no-go decisions.

Test Management & Collaboration

• Manage the test backlog, sprints, and defect workflow in Jira, with traceability in Jama or TestRail and dashboards on release readiness.
• Work with firmware, hardware, and field engineering to root-cause issues, including those reported from deployed sites.
• Support certification testing (UL 9540, UL 1741, UL 1973, IEEE 1547) and document procedures and results in Confluence.

Required Qualifications

• Bachelor’s degree in Electrical, Computer, or Software Engineering, Computer Science, or a related field (or equivalent experience).
• 7+ years in test or validation engineering, including 4+ years on embedded firmware and 2+ years leading or mentoring test engineers.
• Strong Python skills and daily comfort in Visual Studio Code, plus Git and CI/CD tools such as GitHub Actions.
• Proven track record designing firmware validation test cases and running structured regression programs.
• Hands-on experience with embedded interfaces (UART, SPI, I2C, CAN, Modbus, or TCP/IP) and lab equipment such as oscilloscopes, power supplies, electronic loads, solar array simulators, and temperature chambers.
• Advanced Jira skills and clear written communication for technical and non-technical audiences.

Preferred Qualifications

• Background in solar PV, energy storage, BMS, inverters, or power electronics, including standards such as UL 9540, UL 1741, UL 1973, and IEEE 1547.
• Experience building HIL test systems or using LabVIEW for instrument control.
• Working knowledge of C/C++ for reading and debugging firmware source.
• Experience with Jama or TestRail, IoT devices, or OTA update validation.

Physical Requirements

• Lift, move, push, and pull 30-50 lb frequently (over 50 lb occasionally, with assistance).
• Stand and walk for long periods; occasionally kneel, squat, climb, and work at heights.
• Work outdoors in adverse weather, including hot and cold temperatures.

• Competitive salary and benefits package  

• Collaborative, mission-driven work environment  

• Opportunity to work on innovative clean energy technologies  

• Career growth and professional development opportunities  

• Exposure to cutting-edge energy management and cloud technologies 

• Up to 145,000 a year DOE  

• Comprehensive benefits package  

• Collaborative, mission driven work environment