Principal Embedded Software Developer

vor 4 Wochen

Berlin, Berlin, Deutschland Engie Vollzeit
Job Title:

Senior Embedded Software Engineer

Department:

Product and R&D

Reporting Line:

Team Lead R&D

Location:

Berlin, Germany

About ENGIE Energy Access

ENGIE Energy Access stands as a premier provider of Pay-As-You-Go (PAYGO) and mini-grid solutions across Africa. The organization is dedicated to developing cutting-edge, off-grid solar solutions tailored for households, public services, and businesses, enabling both customers and distribution partners to access clean and affordable energy. The PAYGO solar home systems are designed to be financed through manageable installments, while the mini-grids promote economic growth by facilitating electrical productive use and generating business opportunities for entrepreneurs in rural areas. With a workforce exceeding 1,800 employees and operations spanning nine African nations, ENGIE Energy Access has positively impacted over 12.5 million lives and aims to reach 20 million lives by 2025.

Job Purpose/Mission

As a key member of the ENGIE Energy Access Research and Development team, you will engage passionately in the creation of innovative, high-quality products from initial concept through to mass production and beyond. Leveraging your expertise in firmware engineering, you will implement the control logic and functionality of our solar controllers, emphasizing high code quality and longevity of the products. You will collaborate closely with Product + R&D and other teams to establish a sustainable foundation for our offerings. Additionally, you will provide second-level support for firmware-related challenges encountered in the field.

Responsibilities
  • Maintain, enhance, and update the firmware of existing products, including GSM-enabled solar controllers and B2B PAYGO solutions.
  • Design, implement, and test firmware for upcoming solar controllers and intelligent DC appliances.
  • Conduct research and technology studies for new products, covering a wide array of functionalities such as battery charge control, M2M backend communication, user interaction, real-time control, testing, and manufacturing.
  • Engage in testing and test automation (continuous integration, unit, module & system-level testing) in partnership with our product performance testing team.
  • Oversee product lifecycle management and gain insights by analyzing runtime data from existing customer devices in collaboration with data engineers.
  • Work collaboratively with adjacent teams, including hardware, back-end development, product management, manufacturing, quality assurance, and support.
Knowledge and Skills

Experience:
  • A minimum of 5 years of experience in embedded systems software development.
  • A practical background in product lifecycle development and management processes, particularly agile methodologies.
  • A deep understanding of low-level software mechanisms; experience with preemptive, multitasking real-time operating systems is advantageous.
  • Hands-on experience in firmware development for microcontrollers, including peripheral interfaces.
  • Familiarity with IoT connectivity stacks or battery technology (e.g., MPTT, PWM) is a plus.
Qualifications:
  • M.Sc. or an equivalent degree in software engineering, electrical engineering, or a related field.
  • Proficient in coding embedded C with a strong emphasis on modular design.
  • Strong debugging and problem-solving capabilities.
  • Self-motivated with an independent working style.
  • Team-oriented with a collaborative approach to work (e.g., pair programming, code reviews).
  • An innovative mindset with the ability to research new topics and produce tangible results.
  • A focus on code quality and a commitment to automated testing concepts (unit tests, CI).
Language(s):
  • English - Professional Fluency
  • German is a plus
Technology:
  • Programming: C, gcc toolchain, Makefiles, git (e.g., gitlab); C++ is an advantage.
  • Peripheral interfaces: UART, I2C, SPI, USB.
  • Microcontroller: e.g., Cortex-M, STM32.
  • IoT Connectivity: e.g., GSM, Bluetooth, MQTT, CoAP.
  • Knowledge of real-time systems, e.g., FreeRTOS.
  • Scripting for test automation: Python, Linux shell & configuration.
  • Development Environment: git, gitlab including CI.
ENGIE is an equal opportunity employer, promoting diversity and committed to creating an inclusive environment for all. All applications are screened based on business needs, job requirements, and individual qualifications, without any regard to origin, age, name, sexual identity, orientation or preference, religion, marital status, health, disability, political opinions, union involvement or citizenship. Our differences are our strengths.

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