Michał Haze
COO · Marketplace Operator · Gaming Industry Expert
Building and optimizing high-performance digital marketplaces. I help gaming and digital goods businesses architect scalable operations, maximize profitability, and turn complex operational bottlenecks into predictable growth systems.
The Metrics of Scale
A high-level look at the impact and performance driven across digital commerce platforms and global projects throughout my career.
Disclaimer: The metrics above represent historical, aggregated or rounded maximum milestones achieved across multiple projects, platforms, and consultancy roles over the span of my professional career. They do not represent the current, specific financial or operational data of any single active entity.
Operational leverage for modern marketplaces
From scaling teams to fraud reduction — focused engagements that move the metrics that matter.
Build Marketplace Teams
Scalable operational teams across sales, supplier management, fraud prevention, and customer support.
Optimize Marketplace Businesses
Improving operational efficiency, conversion rates, customer experience, and profitability.
Consult Marketplace Investments
Advising investors and marketplace businesses on operations, growth opportunities, risks, and scaling.
Supplier Marketplace Consulting
Helping suppliers start, optimize, and scale selling on digital marketplaces.
Executive impact & operational scale
Over the years, I’ve focused on building scalable operational systems capable of supporting rapid growth while maintaining profitability, quality, and customer trust.
Operational Scale
- Supported multi-million euro marketplace operations
- Scaled business performance with sustained high double-digit growth
- Built and led supplier operations teams responsible for developing large-scale marketplace ecosystems
- Defined operational strategy for product and catalog teams managing highly diversified product ecosystems across hundreds of platforms, categories, and marketplaces
Profitability & Optimization
- Delivered significant profitability improvements through operational optimization initiatives
- Developed new revenue opportunities through product and service expansion strategies
- Improved conversion performance across customer and operational funnels
Risk & Trust
- Built and led fraud prevention teams responsible for balancing security, verification efficiency, and customer experience at scale
- Maintained exceptionally low fraud and complaint ratios across high-volume operations
- Developed fraud mitigation and recovery strategies resulting in substantial financial recoveries
Customer Experience
- Built and scaled customer support operations handling hundreds of thousands of customer interactions
- Maintained high customer satisfaction and trust metrics across large-scale support environments
- Improved operational responsiveness and support efficiency through process optimization and team development
High-Performance Philosophy
In elite digital industries, you cannot build a high-performance business with a low-performance engine. I treat corporate operations and human biology as interconnected systems — engineered with precision, optimized continuously, and led by data.
Sustainable scale isn't just clean code or supply chain architecture — it's mental clarity, resilience, and a high-energy baseline maintained by design.
A deep focus on longevity, physical culture, and restorative systems — from advanced wellness protocols to daily mental discipline — is the unfair advantage that fuels strategic execution.
I don't just optimize marketplaces. I optimize the energy required to lead them.
Physical Engine
Longevity protocols, training, and restorative systems that sustain a high-energy baseline.
Mental Clarity
Daily discipline and focused practice that translate complexity into decisive action.
Operational Precision
Engineering operations like systems — measured, tuned, and continuously optimized.
Sustainable Scale
Compounding execution built on resilience, not bursts of effort.
Trusted by operators, partners and team members.
I've really enjoyed working with Michał over the past months as part of our collaboration. He has been a reliable and proactive partner, always focused on finding practical solutions and ensuring smooth operations. What I particularly appreciate is his clear communication, responsiveness, and strong understanding of both operational and business needs. This has made our cooperation efficient and trustworthy. I'm happy to recommend Michał.
I've been working with Michał since I joined K4G.com 6 years ago. During this time all my tasks were greatly organized and well described. He is a very supporting, understanding and organized person which is a great fit to his role. It is a pleasure working with him on a daily basis.
I've had the pleasure of working with Michał for over 5 years. During that time, we've accomplished a lot together, and our collaboration has always been excellent. Michał consistently prepares tasks thoroughly, plans work ahead of time, and professionally manages designers, developers, and the marketing team. Every task is approached iteratively, which allows us to stay focused on the goal.
Michal has been a pleasure to work with throughout our partnership. He is always a very clear communicator, highly solution-oriented, and consistently brings a positive and professional approach to every interaction. He has a great ability to understand challenges quickly and work collaboratively to find effective solutions. His reliability, responsiveness, and commitment to delivering a great experience make him someone I would highly recommend working with.
During nearly two years of working with Michał, I was able to grow in my role as a Team Leader from a beginner into someone confident in their decisions. Michał was a tremendous source of support in building my self-confidence, always offering a helping hand during more challenging moments at work, and showing great patience throughout every stage of our collaboration. I value him as a person with deep subject-matter expertise in his field.
Under Michał's guidance, over the course of three years I progressed from a beginner level to managing two departments. What I value most about him are his creativity, consistency, structured approach without unnecessary chaos, and his ability to accurately analyze situations and propose effective solutions. Thanks to our regular communication, I learned how to plan and organize complex tasks, as well as think outside the box — emphasizing courage in taking action and testing different solutions. With each passing year, the progress became increasingly visible — both in my own skills, in the departments I manage, and in the results and overall condition of the entire project.
Recognized for consistent excellence
Employee of the Year
Kinguin
Employee of the Year
K4G
Contribution Awards
K4G
15+ years building marketplace ecosystems
My name is Michał Haze and I'm COO of K4G with over 15 years of experience in the gaming, digital goods, and marketplace industry.
Over the years, I've built and scaled operational ecosystems across sales, supplier management, fraud prevention, and customer support.
My focus has always been combining operational excellence with sustainable growth — building systems that improve scalability, customer experience, platform quality, and long-term profitability.
I specialize in marketplace operations where growth, automation, trust, and efficiency must work together at scale.
Let's build better marketplace businesses
Whether you need operational scaling, marketplace optimization, fraud reduction, supplier growth, or strategic consulting — let's talk.