CEO & Co-Founder, Loud Data

CEO & Co-Founder, Loud Data

CEO & Co-Founder,
Loud Data

Marcin spent years inside large organisations watching the same pattern repeat itself: data collected, reports produced in silos across departments, each with their own version of the truth, and decisions still made on instinct.

He built his second 30-person Data & AI team from scratch at G2A, shifting from reporting to giving boards strategic recommendations and concrete decision options, directly contributing to measurable improvements in sales conversion and optimisation of global marketing spend translating into improved EBITDA. That experience became the foundation for Loud Data, where he built his third team around one principle: apply data only where it matters - where money is being lost or where there's real potential to scale.

"If your data doesn't change decisions, it's just noise."

Education & professional experience

Education

2019 – 2020

Warsaw University of Technology

Post-graduate studies, Big Data - processing and analysis of large data sets

2014 – 2015

SGH Warsaw School of Economics

Post-graduate studies, Statistical Analysis and Data Mining in Business (Part II)

2013 – 2014

SGH Warsaw School of Economics

Post-graduate studies, Statistical Analysis and Data Mining in Business (Part I)

2010 – 2013

SGH Warsaw School of Economics

Master's degree, Quantity Methods in Economics and Information Systems

2007 – 2010

Krakow University of Economics

Bachelor's degree, Information Technology and Econometrics

Professional Experience

2022 – Present

Loud Data — CEO & Co-founder

At Loud Data, Marcin leads teams that apply Data & AI where they create measurable business impact, identifying where margin is being lost and where operations can scale. The team builds data warehouses to create one reliable source of truth, uses BI systems to surface insights leadership can act on and deploys AI agents to automate decisions that used to require manual effort.

2018 – 2022

G2A.COM — Head of Data & AI

Marcin built the data and analytics function from scratch into a 30-person team, growing it into one of the most influential units in the organisation, a role it continues to hold to this day. He developed data strategies that directly supported board-level decisions at every stage of the company's growth and established a data-driven culture where reliable data became the foundation for business decisions.

2013 – 2016

EY & KPMG — Strategy & Analytics Consultant

Working across energy, logistics and telecoms at two Big Four firms gave Marcin something most data professionals don't have: the ability to ask the right business questions before touching the data. Consulting taught him to understand industries deeply, write strategy, and see how decisions are actually made at the top. It was also where the gap became clear: analysts were producing reports, not recommendations. That's what Loud Data was built to fix.

CEO & Co-Founder, Loud Data