Senior DVT Engineer - Systems, BESS

Enphase Energy•Austin, TX

2d•$90,000 - $135,000•Onsite

About The Position

This position sits within our Testing group, where you will work with a small team to develop fully functional prototypes that demonstrate new, advanced operation and control for autonomous grid connection, management, and regulation. As a Senior System DVT (Design Verification Test) Engineer, you will contribute to end-to-end validation of the complete Battery Energy Storage System (BESS). You will help verify the inverters together with the full system — their integration and communications with the DC BESS Battery Management System (BMS), the Site EMS/SCADA system, the thermal cooling system, the sensors and safety subsystems, and the DC and AC inverter interconnection — ensuring the integrated system operates safely and reliably per engineering requirements and worldwide standards.

Requirements

BS/MS in Electrical Engineering, Electronics Engineering, and/or Computer Science.
5+ years of experience in a similar role as an embedded software/system test/DVT/QA engineer.
Strong Python programming for controlling test equipment, test framework development, and test automation, including Python bindings for Linux and communication packages (TCP/IP sockets, SMBus, pyModbusTCP, PiCloud, etc.).
Functional validation experience with Ethernet/I2C/SPI/UART/power line carrier-based communication systems, and use of protocol and logic analyzers.
Experience across the stages of embedded software (preferably Linux/RTOS-based) design, implementation, test, deployment, and maintenance.
Experience with full system integration and testing.
Experience validating utility-scale systems with DC BESS sized in 20 ft to 40 ft containers and inverter (PCS) ratings up to 2.5–5 MW.
Experience with 800V–1500V high-voltage DC and 277/480V three-phase AC voltages.

Nice To Haves

Experience validating multi-subsystem BESS integration across BMS, EMS/SCADA, thermal, and safety subsystems.
Basic knowledge of relevant worldwide standards such as IEEE 1547, 1741 SA, CA Rule 21, HECO SRD 1.1, AS/NZS 4777.2:2015, SAND2013-9875, UK G83/2, and Sandia standards.
Knowledge of worldwide advanced grid functions and fault conditions.
Familiarity with AC grid simulators and solar panel simulators.

Responsibilities

Contribute to end-to-end system validation of the complete BESS, verifying the inverters and their integration and communications with the DC BESS BMS, the Site EMS/SCADA system, the thermal cooling system, the sensors and safety subsystems, and the DC and AC inverter interconnection.
Validate the system across DC BESS configurations sized in 20 ft to 40 ft containers and inverter (PCS) ratings up to 2.5–5 MW.
Develop test strategies and plans to verify that Enphase's inverter firmware, gateway, and cloud functions and communications perform per engineering requirements and design specifications.
Develop and execute test strategies to ensure safety and optimal functionality of Enphase's products to meet worldwide standards.
Design and implement automated test systems in Python and Ruby, enabling continuous integration for the development team.
Validate communication interfaces and protocols across subsystems (e.g., Ethernet/TCP-IP, Modbus/TCP, I2C, SPI, UART, SMBus, and power line carrier) using protocol and logic analyzers.
Collaborate with hardware, firmware, and software engineers to ensure the system is designed for test.
Confer with Quality Assurance, Development, and Product Management on project planning, and ensure effective testing of Enphase's products within design constraints.
Use test automation, power meters, oscilloscopes, DC supplies, and other lab test equipment to ensure complete functional, efficiency, and safety test coverage for Enphase's hardware, firmware, and software.
Coach and train new members of the technical staff on Enphase's test equipment, procedures, and automation software.