Piotr Stepinski

Engineering Leader with 11+ years building and operating distributed, event-driven data infrastructure at scale. Deep hands-on experience with Kafka-based ingestion pipelines, Cassandra, and Kubernetes-native backend systems processing large volumes of telemetry data. Proven track record building and leading engineering teams from the ground up, partnering cross-functionally, and driving operational excellence in production environments.

Co-Founder & CTO at Infinitii AI (formerly Carl Data Solutions PL) (2015-03 – Present)

• Designed and operated a production MLOps and data platform ingesting 3B+ telemetry events from distributed sensor networks via Kafka (event streaming/ingestion), Cassandra (storage), and Kubernetes (orchestration).
• Built and led an engineering team from 0 to 8 engineers across Poland and Canada, spanning backend, infrastructure, frontend, QA, and data science disciplines; owned hiring, mentorship, and OKRs.
• Owned full technical strategy and architecture across backend APIs, React frontend, mobile app, and ML pipeline services, partnering directly with Product and Data Science on roadmap execution.
• Set up CI/CD and monitoring practices across a Kubernetes-native stack (GCP and bare metal), supporting continuous delivery for a production, customer-facing platform.

Senior Software Engineer at Kainos — Digital Health Solutions (2014-07 – 2015-02)

• Developed an electronic medical records platform (C#/ASP.NET); provided career coaching to a teammate.

Integrations / ETL Developer at Ergo Technology (Atena) — Insurance IT (2012-08 – 2014-06)

• Engineered data pipelines and data warehouses (SQL Server, SSAS); managed data lifecycle and system migrations.
• Developed a scoring service and custom KPIs, and built integrations to benchmark projects for the PMO office.

Senior Software Engineer at Telzas — Telecom Infrastructure (2009-01 – 2012-07)

• Developed management platforms (C#) and BI solutions (SQL Server, SSAS) for telecom infrastructure.
• Built a platform for remote management of telecom infrastructure and a service for energy consumption monitoring.

M.Sc. in Computer Science – Gdańsk University of Technology (2009)

MicroMasters in Statistics & Data Science – MITx (2020)