I’ve never witnessed a BI developer strong and quick on both sides – understanding the business needs and the technical skills needed to deliver the results. What is an extra mile for others is Jan’s standard distance. His ability to approach complex, strategic, data-warehouse big-size project as well as simple ad-hoc tasks is amazing. If this recommendation sounds overstated its still not enough. Any company that gets this skilled and friendly team player on its board will be very, very lucky