cat welcome.txt
Hello, World!
Welcome to Arch Engineering
I help hardware companies take connected devices from a working prototype to a fleet of tens of thousands in the field, from the firmware on the board to the cloud behind it.
# based in Poland (CET) · remote worldwide · on-site across Poland · EN/PL
cat about.md
About
15 years building software and connected hardware for energy, government and defence, with small and medium-sized teams. I cover the whole stack, from ESP32, STM32 and nRF firmware to MQTT backends and AWS infrastructure, and have shipped systems running on tens of thousands of devices.
About Bartosz Szczepanik and Arch Engineering
neofetch
- bartosz@archengineering
- Role
- Backend · DevOps · IoT · Embedded
- Uptime
- 15 years
- Sectors
- Energy, government, defence
- Cloud
- AWS, IaC, CI/CD, Kubernetes
- Backend
- Java EE, Python, Django, PostgreSQL
- Fleet
- 10,000+ connected devices
- Firmware
- ESP32, STM32, Nordic nRF, GSM/LTE
- Edge AI
- NVIDIA Jetson, TensorRT, OpenCV
- Location
- Poland (CET) · remote worldwide · EN/PL
Expertise: cloud, IoT, backend, embedded and edge AI
ls -la ./expertise/
drwx------.space_defense/# nothing to see heredrwxr-xr-xcloud_devops/AWS architecture, CI/CD pipelines, infrastructure as code, and scalable cloud solutions for enterprise systems.drwxr-xr-xiot_systems/Large-scale IoT platforms managing 10,000+ devices. From edge to cloud, end-to-end solutions.drwxr-xr-xbackend/Enterprise-grade applications with Java EE, Python, Django. Microservices and serverless architectures.drwxr-xr-xembedded/Firmware for ESP32, STM32, Nordic nRF. GSM/LTE modems, Sub-GHz radios, and PLC.drwxr-xr-xedge_ai/Computer vision on edge devices — real-time inference on the NVIDIA Jetson family.
Latest blog posts
git log --oneline ./blog
8a8929e2026-10-04What CRA compliance actually takes for a small hardware team 04d16e02026-10-01One golden certificate for the whole production line 2b371552026-10-01The CRA clock is already running on devices you shipped years ago 306efbe2026-09-30Updating firmware on fifty thousand ESP32s without bricking any bfb07062026-09-30Where the battery goes on an LTE-M sensor ls ./blog --all →
Start a project
./start_project.sh