Embedded Firmware Engineer Intern — ESP32, Edge AI & WiFi Sensing
- C / C++
- ESP32
- RTOS
- WiFi & BLE
Zoe Care is building a Physical AI platform that interprets human activity from variations in ambient Wi-Fi signals.
Our technology combines WiFi Sensing, signal processing and Edge AI to understand what is happening in a real environment, without cameras or wearables, with a privacy-respecting approach.
Our first application, ZoeFall, detects falls of older adults using a discreet device installed in their living space.
After several real-world pilots, we are entering a new phase: making our embedded system ever more robust, reliable, manufacturable and easy to deploy at scale.
The technical challenge
Our technology must:
- continuously acquire and analyze Wi-Fi signals;
- run detection algorithms locally;
- integrate signal processing and embedded AI building blocks;
- communicate reliably with our software infrastructure;
- operate durably in real, constrained environments.
The work sits at the intersection of low-level firmware development, microcontrollers and real-time systems, Wi-Fi and Bluetooth Low Energy communications, signal processing, Edge AI, testing, reliability and the industrialization of connected systems.
Your missions
- Developing and evolving C/C++ firmware on ESP32
- Integrating signal processing and embedded AI building blocks
- Acquisition, synchronization and preprocessing of Wi-Fi data
- Developing drivers and services in an RTOS environment
- Managing Wi-Fi and BLE communications
- Configuration, diagnostics, logging and OTA updates
- Optimizing performance, memory usage and stability
- Designing and automating functional, robustness and endurance tests
- Analyzing incidents observed during field deployments
- Following industrialization with prototyping and manufacturing partners
You may also take part in pilot installations in nursing homes (EHPADs).
Your profile
Final-year engineering student or gap-year student, specializing in:
- embedded systems
- electronics
- industrial computing
- telecommunications
- or an equivalent field
Ideally
- Strong C and C++ fundamentals
- Understanding of microcontrollers and hardware constraints
- First experience with an RTOS, interrupts, timers, buses or drivers
- Wireless communication protocols, particularly Wi-Fi or BLE
- Rigorous debugging methodology
- Ability to understand technical documentation and new environments
- Autonomy and initiative
Bonus
- ESP32
- ESP-IDF / FreeRTOS
- OTA updates
- Signal processing
- Radio telecommunications
- Embedded AI / Edge optimization
What you’ll find at Zoe Care
- A central role in industrializing a deeptech product
- Direct technical mentoring by the CTO
- Access to the CentraleSupélec scientific environment
- Strong autonomy and ownership
- Short cycles: development → testing → field → improvement
- An impact-driven project serving older adults and care professionals
- The 21st by CentraleSupélec community
- Weekly sports activities
- University restaurant