I am Lukáš Kozelnický, a Data Engineer specializing in helping business to make data-driven decisions.

I work with business that struggle to manage growing amounts of data, often scattered across systems. Business that are overwhelmed trying to extract insights from inconsistent information, and they need to align their data strategy with their business growth.

My solution is to design and implement sustainable data systems—whether that’s building a modern data lake, or end-to-end ETL processes. What sets me apart is my focus on creating long-term, future-proof systems that grow with the business, enabling teams to scale without technical bottlenecks.

With years of experience in the tech industry and proven results across multiple sectors, I’ve helped companies streamline operations, reduce reporting time, and confidently adopt data-driven strategies. My work is built on trusted, battle-tested technologies that ensure both reliability and flexibility.

I provide tailored data engineering services to help organizations transform raw data into actionable insights. Whether you’re starting with a new data warehouse, optimizing ETL pipelines, or scaling to handle enterprise growth, I bring the tools and expertise to deliver lasting results. If you’re ready to make your data work harder for your business, let’s connect.