Embedded engineering · Poland · B2B
I'm Grzegorz Grzęda. Since 2010 I have built embedded software for products that ship: Nordic nRF54 and nRF52 with Zephyr, Thread and BLE, secure device-to-cloud communication, and field updates with MCUboot. G2Labs is my independent practice, working remotely with teams across Europe.
What I take on
Worked with
Services
Offer 01
Fix, stabilize, or ship the firmware slice blocking the product: board bring-up, Zephyr and other RTOS work, BLE and Thread behavior, protocol code, MCUboot field updates, or code that has become hard to change safely.
Best when a product team needs reliable device behavior now, not another broad assessment that leaves implementation untouched.
Offer 02
Build the part where the device becomes a product: secure CoAP or MQTT flows, payloads and APIs, provisioning and update paths, backend touchpoints, and the tools operators actually use.
Best when firmware exists, but the product still breaks down once data leaves the device.
Offer 03
Move an embedded or connected-product MVP from uncertain prototype work toward a buildable product path with hands-on implementation, sharp scope, and explicit technical decisions.
Best when a small team has to ship across hardware and software without waiting until later to discover the risky boundary.
Case studies
Sigma Software Group / 2023-present
Baracoda / 2022-2023
SeaChange / 2020-2021
Open source and products
Open-source product
A lightweight open-source real-time operating system for microcontrollers and small systems, designed to stay tiny, transparent, and hackable.
Product showcase
A browser-first collection of practical developer utilities built to remove the small repetitive tasks that slow down bigger engineering work.
About
Since 2010, Grzegorz has worked across embedded firmware, wireless systems, electronics, FPGA, GUI applications, backend integrations, and education-oriented open-source work. The core stack today is Nordic nRF54 and nRF52 with Zephyr RTOS: Thread and BLE networking, CoAP and DTLS, MCUboot-based updates, and device security, designed end to end from the radio to the service behind it. The wider range covers ESP32, STM32, AVR, BLE, MQTT, and the software around the device, built with an agentic, AI-assisted workflow that keeps every engineering decision reviewable.
G2Labs stays intentionally small: you work directly with the engineer who writes the code, so decisions stay explicit and communication stays short. The full timeline, education, and publications are on the work page.
Writing
Oct 27, 2026
AI agents can now work across a whole Zephyr codebase, not just complete a line. In firmware that is useful, as long as the hardware stays the final reviewer.
Apr 24, 2026
MicrOS is my attempt to make embedded operating system concepts clearer, smaller, and easier to explore in public.
Contact
Write to grzegorz.grzeda@g2labs.pl or use the form. I usually reply within 2 business days.
