Marcin Fortuna
I design and build end-to-end data systems - ingestion, pipelines, storage, and the APIs other systems depend on. Especially the messy parts nobody wants to touch.
I work for companies with data spread across systems that don't talk to each other, validation nobody trusts, and maintenance everyone avoids.
Selected work
Built the backend of a marketing automation platform for a Fortune Global 500 company — automated multinational compliance checks and replaced manual CRM work. Worked on system design, chose the tech stack, handled deployments, and was the point of contact for the team using it.
For the same client, built a pipeline processing 20M+ data points weekly, unifying web analytics with CRM records, and the APIs serving it to reporting tools.
Improved performance and reliability of a cloud data pipeline for IoT devices, feeding sensor data into a central database used by the product team, data scientists, and mobile endpoints.
How I work
Async, my own hardware, monthly retainer, remote.