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Elemental Excelerator
Elemental Excelerator

Firmware Engineer - Wireless Support



Customer Service
Santa Clara, CA, USA
Posted on Tuesday, June 27, 2023
Hanwha Q CELLS Co., Ltd., is one of the world´s largest and most recognized photovoltaic manufacturers for its high-performance, high-quality solar cells and modules. It is headquartered in Seoul, South Korea (Global Executive HQ) and Talheim, Germany (Technology & Innovation HQ). Through its growing global business network spanning Europe, North America, Asia, South America, Africa, and the Middle East, the company provides excellent services and long-term partnerships to its customers in the utility, commercial, government, and residential markets. Hanwha Q CELLS is a flagship company of Hanwha Group, a FORTUNE Global 500 firm and a Top 7 business enterprise in South Korea.
Our mission is to provide affordable and smart energy solutions through technology and innovation to create a sustainable future for the planet. We are expanding our business by offering revolutionary energy systems to residential customers including ESS, MLPE (power optimizers, micro-inverters), EV charging solutions, and Smart IoT with world-class solutions.
Future Energy Technology Center (FETC) is looking for a Firmware Engineer to work on new power electronics development in renewable energy, EV charging, energy storage, IoT and more. You will implement firmware and control algorithms in bare metal systems to control power stages ranging from a few hundred watts to megawatts, implement communication algorithms and support firmware from R&D stage to production. You will also be tasked to develop FW for the SoCs that provide network communication.


  • Develop and debug modular low-level, real-time and low-latency firmware in C.
  • Develop control algorithms for power electronics products: solar converters, EV chargers, energy storage, etc.
  • Design and implement communication protocols based on UART, SPI, I2C, CAN and possible higher level comm like PLC, BT, and UWB.
  • Participate in board bring-up, debug, test, and code optimization.
  • Collaborate with all other engineering teams (electrical, mechanical, controls).
  • Support generation of software specifications and design documents.
  • Support project schedules and timelines.


  • BS or MS in Electrical Engineering/Computer Engineering/Computer Science, or equivalent.
  • 3+ years of professional firmware/software development experience.
  • Experience with embedded systems compilers, debuggers, IDE's.
  • Experience developing embedded device drivers including ADC, GPIO, PWM, UART, SPI, WiFi, cellular, etc.
  • Understanding of workings of RTOS or schedulers.
  • Strong team player able to work in codesets with multiple developers.
  • Ability to integrate and troubleshoot existing code.
  • Ability to debug complex system-level issues and drive solutions.
  • Experience with communication protocols.
  • Experience with lab equipment: meters, oscilloscopes, signal generators, logic analyzers, etc.
  • Basic understanding of schematics and circuit diagrams.
  • Experience with git, JIRA, and related workflows.
  • Strong interpersonal skills and teamwork in cross-functional environments.
  • Strong communication skills, with good knowledge of spoken and written English.


  • Experience in developing firmware in power electronics projects such as motor control/drives, AC/DC and DC/DC converters, etc.
  • Knowledge of continuous time and discrete time control and its implementation in embedded environments.
  • Knowledge of scripting languages or any other high level languages.
  • Knowledge of FPGA programming and ASIC development
  • Experience in mobile app integration for data collection and visualization.
  • Experience in cloud data storage