Job
In this role, you will implement low-level drivers for ARM-based MCUs and work on satellite subsystems while collaborating with hardware teams to test interfaces and develop firmware.
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Job technologies
Your role in the team
- Implement low-level drivers for ARM-based MCUs and external chips in real-time operating system and bare-metal environments.
- Implement software for satellite subsystems such as reaction wheels, GNSS receivers, star trackers, and sun sensors.
- Collaborate with the hardware and electronics team on board handover, bring-up, and validation.
- Work with the Flight Software team, which develops the software that controls these actuators and sensors, to define and test the interfaces between the two.
- Assist with on-orbit flight operations.
- Configure peripherals (timers, GPIO, ADC, DMA, communication buses) from datasheets and reference manuals, with review from senior engineers.
- Write and test drivers for sensors and actuators, and verify that the values they produce match the hardware’s actual behavior.
- Debug on real hardware with a debugger, logic analyzer, and oscilloscope.
- Write unit and integration tests that specify the behavior of your firmware.
- Write Python tools for testing, calibration, and automating repetitive work.
- Fix setup notes, standard operating procedures, and bring-up documentation when you find gaps.
Our expectations of you
Education
- Degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field.
Qualifications
- Solid grasp of C. You can explain volatile, interrupts, and why sharing data between an ISR and the main loop needs care.
- Working knowledge of Python for scripting and test tooling.
- You have built a microcontroller project with working firmware: clocks, GPIO, a timer interrupt, a serial peripheral.
- You have read data from an I²C or SPI device and checked that it was correct.
- Comfortable using a hardware debugger (SWD/JTAG) to step through code, set breakpoints, and inspect memory on a target.
- Familiar with Git, code reviews, and working on Linux with a GCC-style toolchain.
- Able to read schematics well enough to find a pin, a pull-up, or a power rail.
- Exposure to an RTOS such as FreeRTOS or Zephyr, or a basic understanding of tasks, queues, and priorities.
- Unit testing of embedded code on the host (Unity, CMocka, GoogleTest, or similar).
- Interest in or familiarity with Rust.
Experience
- Up to 3 years of hands-on embedded development experience in domains such as robotics, real-time control systems, or low-level systems software.
- Experience with ARM Cortex-M devices and their vendor SDKs.
- Experience with CAN.
What we offer
- Collaborate with a diverse multinational team crafting the next wave of cutting-edge satellites.
- Embark on this exciting journey with us from the outset, leaving your indelible mark on a dynamic company and playing a direct role in shaping the future of the space industry.
- Enjoy 30 days of paid vacation and a special company holiday on April 12th, celebrating the International Day of Human Space Flight and the spirit of exploration.
- We provide a hybrid work model along with flexible working hours, empowering you as the owner of your time management.
- An annual training budget of €1,500.
- A contribution to your Urban Sports membership as well as a discount on public transportation.
- A 20% contribution to your private pension plan.
- Access to Corporate Benefits—a website offering discounts on a wide range of brands.
- We exclusively offer permanent employment contracts, reflecting our commitment to building long-term relationships and supporting sustainable career growth within our organization.
Topics you will work on
Job locations
About your employer
Reflex Aerospace GmbH is a forward-looking NewSpace startup with offices in Berlin and Munich, focusing on the development and manufacturing of high-performance satellites. With a team of over 90 employees and advanced manufacturing techniques, the company takes a leading role in the German satellite industry. Founded in 2021, Reflex Aerospace aims to achieve market leadership in Europe.
- Startup
- Onsite, Hybrid
- Aviation, Space Travel
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