Embedded System Lead EngineerHexa · France

Embedded System Lead Engineer

🗓️ Posted 2026-10-12 France Fulltime Hybrid Engineering
💰 Salary Not shared 📊 Market 4,500 EUR–6,500 EUR/mo

About the Company

PELAGON - AUTONOMOUS MARITIME ISR Full-time On-site (Marseille or Paris) Founding team Reports to founders The sea is the physical layer of the economy-the conduit for our energy, communications, and trade. It is also Europe's exposed flank. Pelagon is building the answer. Founded by Aymeric https://www.linkedin.com/in/adepontbriand/ locale en (serial deeptech entrepreneur; founded & exited Scortex, Leading AI solution for manufacturing quality) and Gauthier https://www.linkedin.com/in/gauthier-bouxin/ locale en (Navy officer and McKinsey), Pelagon is building a foundational multimodal acoustic model for autonomous maritime protection (underwater and surface) in service of European sovereignty. It will be deployed on a distributed, autonomous network of vectors (UUVs, buoys, sailbuoys, seabed ) to provide real-time understanding of underwater threats. France and Europe have world-class acoustic engineers and a long history in underwater warfare. By bridging this expertise with modern physical-AI strategies (as seen in autonomous driving and robotics). Europe is still missing it's naval NeoPrime, Pelagon aims to become to lead the way in autonomous marine protection-from detection to interception-partnering with leading navies, primes, and neo-primes, while also operating its own fleet as a service. Pelagon is backed by Hexa http://hexa.cc/, the pioneer startup studio in Europe, which has launched 35+ companies, including unicorns like Front, Aircall, and Spendesk,

About the Role

As Embedded System Lead Engineer, you take end-to-end technical ownership of the hardware, electronics, and embedded stack across a small family of autonomous maritime platforms, some operating on the surface, some beneath it. What they share matters more than what sets them apart: each must persist at sea for long stretches, sense its surroundings, run our AI on-device, and report back intelligently - all while surviving a brutal environment on a very tight energy budget.

Responsibilities

  • ● tion through bring-up, integration, sea trials, and iteration. You'll set the engineering bar for the platforms team and shape how we build for years to come.
  • ● These platforms exist to carry one thing into the water: our AI. Pelagon trains high-performance detection models in-house on its own stack, and those models have to run on-device, at the edge, on a razor-thin power budget - then push results back to our operations center. Designing the compute-and-power architecture that makes this possible is the heart of the role.
  • ● The mandate is simple and uncompromising: get reliable hardware in the water fast, and start collecting data. Every week of persistent at-sea operation compounds. The hardware is the gate to all of it.
  • ● WHAT YOU'LL OWN
  • ● Common system architecture across the platforms: power, sensing, compute, and communications.
  • ● The edge-AI compute platform - selecting and integrating the processors and accelerators that run our in-house detection models on-device, and extracting maximum inference from every milliwatt.
  • ● Electronics design and integration - power distribution, battery systems, motor/thruster control, sensor interfaces (acoustic, pressure, IMU, GNSS, AIS).
  • ● The embedded software and autopilot stack, firmware, and the low-level glue that makes autonomy reliable in a brutal, wet, salty environment.
  • ● Robustness and efficiency engineering: watertight integrity, power budgets and endurance, thermal behaviour, EMC, and graceful failure modes far from shore.
  • ● Hands-on bring-up and sea trials - you'll be on the dock and on the boat, not just at the bench.
  • ● Vendor and component decisions, and the build-up of our test and manufacturing practices as we scale from prototype to fielded units.
  • ● THE HARD PROBLEMS YOU'LL BE SOLVING
  • ● These are genuinely difficult, and that's the point:
  • ● Persistence with a finite power budget. Endurance is everything for a surveillance node - squeezing weeks of useful operation out of a sealed, ship-deployable platform is a relentless optimization problem across power, compute, and duty-cycling.
  • ● Reliability with no one to fix it. A system at sea has to fail safe and recover on its own. There is no field technician at 30 nm offshore in a 2 m swell.
  • ● Running real AI at the edge, on almost no power. This is the defining challenge of the role. Our in-house models have to run inference on-device, in real time, on platforms with a razor-thin energy budget - then sense, sleep, and wake intelligently to stretch endurance from hours into weeks. Getting high-performance ML to live within milliwatts is what makes the entire system possible.
  • ● Sensing in a hostile medium. The ocean fights you at every turn - pressure, corrosion, biofouling, acoustic noise, intermittent comms - and the hardware has to keep sensing and computing through all of it.
  • ● Speed without fragility. We are building fast toward sea trials, but a demonstrator that breaks doesn't generate data. You'll have to find the line between moving quickly and building things that survive the ocean.
  • ● WHO WE'RE LOOKING FOR
  • ● You are a sharp, senior builder who wants to own a problem, not be handed a ticket. Specifically:

Benefits

  • ● Founding ownership. You'll be one of the first engineers and will define the technical foundation of the company. Meaningful equity comes with that.
  • ● A mission with weight. This is hardware that protects critical infrastructure and Europe's maritime space.
  • ● Real things, in the real ocean, fast. You'll see your work in the water within weeks, not years.
  • ● AI-first, at the edge, in the real world. We train our own models and run them where it counts: in the water, on the device. You'll be solving the edge-ML and power problems most companies only talk about.
  • ● A sovereign, European deeptech at the inflection point of a market with strong NATO and EU policy momentum behind it.