Tallinn, EstoniaJob Description
As a control-systems engineer you will own the algorithms that keep our drones stable, responsive, and mission-capable without satellite guidance.
What you will be doing
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Design, implement, and tune real-time flight-control algorithms (attitude, position, and trajectory loops) targeted at GNSS-denied missions.
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Develop high-rate state-estimation and sensor-fusion pipelines that blend IMU, barometer, optical flow, VIO, and SLAM data.
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Port and optimise these pipelines on flight computers (Jetson Orin, Raspberry Pi CM5, i.MX 8M plus) under real-time constraints.
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Extend and customise PX4 or write bare-metal control stacks where needed.
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Create Software-in-the-Loop (SITL) and Hardware-in-the-Loop (HITL) test environments; iterate rapidly between simulations and field flights.
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Instrument test vehicles, run flight campaigns, and mine logs to improve robustness in wind, vibration, and electromagnetic interference.
Required skills
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Proficiency in C++14 and C99 (or newer).
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Proficiency in Linux environments.
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Hands-on experience with Linux SBCs such as Raspberry Pi, BeagleBone, or similar.
Nice to have
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Previous experience with embedded systems, especially STM32 microcontrollers.
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Hands-on experience with PX4, ArduPilot, or custom flight-control firmware.
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Practical knowledge of RTK-GPS, UWB, or vision-based localization frameworks.
Additional advantageous skills
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Control theory — PID, LQR, observers, pole/zero placement, robustness analysis.
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Sensor fusion & estimation — Kalman variants, factor graphs, Bayesian filtering.
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Computer vision — feature tracking, optical flow, homography, depth estimation.
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Digital comms & electronics — UART, SPI, I²C, CAN-FD, logic-analyzer debugging.
What we offer
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Monthly gross salary €3,500-6,000 based on experience and impact
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Stock options
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A mission-driven team that values ownership, curiosity, and a hands-on approach to solving defense challenges
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Early technical influence in a growing defense tech startup
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A focus on outcomes
