The Role

The Electronics Design Engineer will be a member of the hardware team delivering low‑noise, high‑frequency mixed‑signal control and instrumentation for our QKD systems. The role spans end‑to‑end board design in Altium (schematics, layout, DFM/DFT), precision analog signal chains, prototype bring‑up/validation, and, where needed, STM32 (F4/H7) firmware in C for control, calibration, and integration. You will work with existing automated measurement software in Python and extend it where needed, collaborate closely with optics, FPGA, and software, and support manufacturing.

The Responsibilities

Hardware design, prototyping, and validation
- Owning hardware architecture and component selection for precision, low‑noise, and high‑frequency performance
- Designing low‑noise analog and mixed‑signal schematics and PCB layout in Altium
- Managing prototype builds and vendors; executing bring‑up; precision and high‑frequency measurements (DC accuracy, noise spectral density, long‑term drift, frequency response); lab debugging and reworks
- Working with existing automated measurement software (Python) and extending it where needed
Firmware development on STM32 and interfacing in Python (secondary scope)
- Designing and modifying STM32 F4/H7 firmware in C (HAL)
- Interfacing with Python drivers/scripts for control and data acquisition
Test automation and CI
- Building and extending automated board/firmware test setups (Python; instrument control via VISA/SCPI through the existing automated measurement software) to capture logs/metrics
- Establishing repeatable build/test pipelines for firmware and board validation; archiving artifacts, measurements, and calibration data
Manufacturing support and releases
- Producing manufacturing packages; supporting vendors through fabrication and assembly; designing/maintaining simple test fixtures
- Owning hardware/firmware versioning and release notes; maintaining traceable revisions
Cross‑team collaboration and documentation
- Collaborating with optics/FPGA/software on interfaces, calibration, timing/latency budgets, and integration
- Authoring design docs, analyses and budgets, calibration/bringup procedures, and change logs
- Maintaining detailed experimental documentation in Confluence

The Requirements

The Electronics Design Engineer is expected to have the following qualifications and experience.

5+ years analog/mixed‑signal electronics design for R&D/instrumentation; strong Altium for schematics and PCB layout; DFM/DFT
Deep analog fundamentals: low‑noise signal chains (e.g., high‑frequency TIAs/preamps, ADC drivers, anti‑aliasing/reconstruction filters), precision references/measurements, grounding/guarding/shielding, low‑leakage layout
Ability to set/close noise and error budgets; tolerance/Monte Carlo and worst‑case analysis; SPICE class simulation (LTspice/PSPICE, etc.)
Lab expertise: precision/HF measurements (DC accuracy, noise spectral density, long‑term drift, frequency response, temperature dependency); oscilloscopes, spectrum analyzers; VNA as applicable
Awareness of EMC/EMI and safety constraints; design for compliance and pre‑compliance testing
Python for lab/test automation and instrument control; Git‑centric workflow
Proficiency in written and spoken English
Ability to be on‑site in Munich or Potsdam offices to work with hardware, when required
Applicants must have the right to work in Germany at the time of application. We do not provide visa sponsorship.
Must be eligible to obtain and maintain either (a) a U.S. Secret (or higher) security clearance or (b) an EU SECRET (or national equivalent) personnel security clearance. Employment is contingent on meeting applicable government security requirements; eligibility is determined by the competent authorities.

Good to have

STM32 F4/H7 exposure; C with HAL
Familiarity with STM32 bootloaders/updates (DFU/OTA)
Experience with calibration flows and production test fixtures

The Rewards

We are an international team of quantum technology experts and dedicated business creatives that are working to bring quantum‑enabled solutions to the global market. Our brilliant team members enjoy a high degree of freedom working remotely or joining one of our office spaces. We have a vibrant, enthusiastic, passionate and creative culture driven by trust, excellence and continuous improvement. If you join the Terra Quantum team, you can expect:

An opportunity to work with some of the brightest minds in the pioneering field of Quantum Technologies as well as an experienced and progressive Leadership team
Gain knowledge of some of the most cutting‑edge technology developments in science & engineering
A chance to be part of one of Europe’s leading technology firms of the upcoming decades
Welcoming, friendly, and professional colleagues
A personal development plan with clear goals for advancement
A competitive salary
Flexible working arrangements
A diverse and supportive atmosphere, where innovation and initiative are encouraged

If you are enthusiastic about positively impacting the world and helping to drive the second quantum revolution, let’s talk!

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