Maciej Galkiewicz

About me

Hi, I’m Maciej. I’m endlessly curious about how the world works.

I read across disciplines—history, biographies, business, marketing, investing, psychology, fiction, and more—to explore how people think, act, and build.

I live in Berlin with my wife and two kids. I love riding motorcycles, listening to music (preferably loud), working out at the gym, and escaping to Italy whenever I can. Sport has always been part of my life, and these days I mostly train in the gym.

My Work

Over the past 10+ years, I’ve gone from being a system administrator to taking over and scaling a company. Almost overnight, I became the CEO of Ragnarson—a software development company—where I led a team of 60 people. That experience taught me a lot about leadership, responsibility, and what it means to grow with your company.

I’ve also invested in and worked closely with startups, particularly in the climate tech space. I’ve helped founders challenge their assumptions, build better systems, and make more grounded decisions.

What I’m Exploring Now

Lately, I’ve been diving deep into decision-making. As a founder, I’ve faced tough decisions—some I navigated well, others not so much. That experience sparked a deeper interest in how decisions are made.

Right now, I’m exploring:

  • Decision-making frameworks
  • Cognitive biases and heuristics
  • Probabilistic and Bayesian thinking
  • Complexity and systems thinking
  • Incentives and game theory
  • The role of personal values, identity, and context in shaping decisions

If you’re working in this space or just curious about it, I’d love to connect.

What I Bring to the Table

People often tell me my strengths lie in:

  • Discipline and commitment
  • Quickly assessing systems for gaps, contradictions, and inefficiencies
  • Asking sharp, sometimes uncomfortable, questions
  • Building relationships and trust quickly

These skills have been especially useful in mentoring founders, investing in early-stage startups, and helping organizations grow.

Feel free to reach out if any of this resonates or if you’re working on something interesting.