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Embedded Systems Engineer
Bits Into Watts
// About Me
Building Connected Devices
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Firmware engineer focused on IoT and low-power embedded devices. Over nearly 3 years I have grown from intern to mid-level at an IoT company, working close to the hardware — drivers, communication protocols, power optimization, and the test jigs that catch problems before they reach the field. Before that, two years of embedded and IoT research at INATEL, where I am finishing my Computer Engineering degree. What drives me is controlling the physical world with software and chasing every problem down to its root cause.
At Nouvenn IoT I develop and test production firmware for smart-metering and smart-city products on Silabs (EFR32/EFM32), ESP32, and STM32 microcontrollers — building features, fixing bugs, running bench tests, and documenting them, with my code reviewed by the tech lead.
Some of the work I'm proud of: on the Smart Pulse Counter (NB-IoT water/gas meter) I wrote the GPIO driver and pulse-counting library, built the low-power sleep mode, made the counting atomic to fix a pulse-loss bug, and traced spurious modem wake-ups to electrical noise. On the Smart Light Controller I built the energy-sensor calibration (UART plus an RS485 reference meter) and API regression tests. On the Rockchip PX3 gateway I owned reliability testing — 4G LTE, VPN, and PMIC battery failover. I also built Python test jigs (bench and end-of-line) that standardize how devices are validated before shipping.
Outside work I build Smart Home automations on ESP32 — LED-strip control over BLE, presence-based lighting, and a power strip with an energy meter — to turn manual routines into something I can control and measure.
+3
Years Experience
8
Projects Delivered
3
Certifications
Mid-level Firmware Engineer
Current Role
// Technical Skills
Tech Stack
Languages
Microcontrollers
Embedded Linux
RTOS
Tools & Frameworks
Protocols
// Featured Projects
Selected Work
Smart Pulse Counter (SPC)
Low-power NB-IoT firmware that counts and classifies water/gas meter pulses and runs for years on a battery.
Smart Light Controller (SLC)
Energy-metering calibration for a connected streetlight photocell on a mesh network.
IoT Gateway (Embedded Linux)
Reliability and resilience testing for the Rockchip PX3 gateway that keeps a streetlight fleet online.
Test Jigs
Python bench and end-of-line jigs that validate firmware and catch hardware faults before shipping.
Smart Farm
Smart greenhouse on ESP32 with sensor monitoring over Wi-Fi and MQTT.
Park Here
YOLOv8-based parking-space analysis integrated with a mobile application (proof of concept).
Energy Consumption Forecasting
LSTM and GRU neural networks that forecast energy consumption from historical data.
Smart Lab
Web app integrated with a server and SQL database, deployed for real use in the university lab.
Smart Home
Personal ESP32 automations that turn manual routines into something I can control and measure.
// Career Path
Work Experience
Firmware Engineer (Junior → Mid-level)
Nouvenn IoT
- › Develop and test production firmware on Silabs (EFR32/EFM32), ESP32, and STM32 for smart-metering and smart-city products
- › Smart Pulse Counter (NB-IoT): GPIO driver, pulse-counting library, low-power sleep mode, and an atomic-counting fix for a pulse-loss bug
- › Smart Light Controller: energy-sensor calibration (UART + RS485) and API regression tests; Rockchip PX3 gateway reliability testing (4G LTE, VPN, PMIC failover)
- › Built Python bench and end-of-line test jigs to standardize device validation before shipping
IoT Firmware Intern
Nouvenn IoT
- › Tested firmware for photocell mesh networks reporting to cloud APIs over NB-IoT
- › Worked on NB-IoT pulse counters for water and gas meters
- › Built the SPC test jig from scratch and ran power-consumption tests against reference hardware
Laboratory Monitor
National Institute of Telecommunications (INATEL)
- › Embedded Systems: state machines, registers, GPIO, interrupts, PWM, ADC, UART/USART and I2C
- › Intro to Electronics and Analog Electronics II/III: diodes and transistors for voltage regulators and filters, op-amps, logic gates with ICs, VHDL and Verilog
- › Object-Oriented Programming: Java and UML, dependency management, version control
- › Python Programming: Python and data analysis, OOP review
Undergraduate Research Fellow
National Institute of Telecommunications (INATEL)
- › Smart Farm: ESP32 smart greenhouse with sensor monitoring over Wi-Fi and MQTT
- › Park Here: YOLOv8-based parking-space analysis integrated with a mobile app
- › Smart Lab: web app integrated with a server and SQL database for the university lab
- › Energy Consumption Forecasting: LSTM and GRU models for energy prediction from historical data
// Credentials
Education & Certifications
Degrees
Bachelor's degree
Instituto Nacional de Telecomunicações (INATEL) · 2021 – 2025
Computer Engineering