MARIUSZ GROMADA is a senior banking executive and builder with more than 20 years of experience at the intersection of customer strategy, data science, and technology in large-scale B2C environments. Currently serving as the Head of Customer Intelligence at a major bank in Poland, he helps turn customer-centric ambition into measurable growth through AI-driven personalization and pragmatic operating models that work in the real world – not just on slides.
His work spans the full loop: understanding customer needs with analytical rigor, activating that insight through CRM and next-best-action orchestration, and measuring impact transparently. He is particularly focused on “AI by design” approaches that replace campaign noise with always-on relevance – keeping trust, control, and human value at the center.
A Philosophy of Total Ownership
Mariusz holds the conviction that we live in an era of unprecedented possibility, where the democratization of high-end tools and knowledge has collapsed barriers to creation. He believes that today, with enough discipline and curiosity, a single individual can achieve professional mastery across disparate fields – transforming from a narrow specialist into a versatile “One-Man Army.”
His professional identity reflects this multidimensional approach:
- Executive Leadership: Transforming high-level strategies into scalable solutions. At a top-tier bank, Mariusz orchestrates complex Customer Intelligence ecosystems that serve millions of customers daily, bridging the gap between IT architecture and business goals.
- Writing & Publishing: With Customer First, Value Next, he offers a strategic playbook for the AI era. True to his philosophy, Mariusz personally oversaw the entire publishing process – from writing and translation to editing, DTP layout, and interior design – demonstrating total ownership of the final product.
- Industry Speaking: A recognized voice in the sector and a regular contributor to major forums (e.g., MIT Sloan Management Review, Forbes, Business Insider, European Financial Congress). Mariusz frequently takes the stage to debunk hype and share practical insights on AI adoption, digital transformation, and the future of customer growth.
- Software Engineering: Creator of mXparser (a global-standard math library with 5M+ downloads) and the Scalar mobile app (400k+ downloads). He doesn’t just talk about technology; he builds it and maintains open-source projects used by developers worldwide.
- Science Popularization: A mathematician passionate about sharing knowledge. His educational blog, MathSpace.pl, attracts hundreds of thousands of readers seeking answers to complex mathematical questions, ranging from classification trees to number theory.
- Music Composition & Production: Creator of the progressive metal project RELEARN. Operating as a “One-Man Studio,” he composes, performs, mixes, and masters complex instrumental works, bridging mathematical logic and human emotion.