Independent software & data engineer · computational-physics background · I build small, fast, open-source tools under C256 Labs

Software & data engineer based in Poland.

I've shipped systems across optical networking, embedded semiconductors, mobile health, environmental data, and fintech payments — these days mostly data platforms (Dagster · dbt · Snowflake) and payments infrastructure. I like tools that do one thing well and stay small.

# ~/.config/c256/stack.toml
languages  = ["Python", "C", "SQL", "Kotlin", "Bash"]
data       = ["Dagster", "dbt", "PostgreSQL", "ClickHouse", "Snowflake", "Snowpark", "Polars"]
streaming  = ["Kafka", "Redis", "RabbitMQ", "Celery"]
infra      = ["Docker", "Kubernetes", "AWS", "Azure", "GCS", "Oracle", "Terraform"]
geospatial = ["H3", "OSM / Nominatim / Overpass"]
poking_at  = ["on-device ML (YAMNet)", "embeddings + LLM pipelines", "retro TUIs"]

• parquet_viewer — a tiny terminal UI for browsing Parquet files

• hava — air-quality collector for a mobile sensor station (SDS011 + Raspberry Pi).
• aqua_iot — aquarium temperature monitoring (Particle Photon · MQTT · Home Assistant).
• everblu-meters-esp8266-improved — improved ESP8266 firmware for reading water meters over RF (Home Assistant integration).
• Wurzelfenster — script for a school-lessons experiment kit.