Leszek Leszczyński
Technical Lead at Decerto
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolLeszek Leszczyński is a seasoned technical leader with 11 years of formal experience and a 20+ year engineering background, currently serving as Technical Lead at Decerto in Warsaw. He has progressed from hands-on full-stack development to managing large teams and DevOps functions, most recently directing software development and running a DevOps team at LINK4. Leszek combines deep infrastructure and data engineering knowledge—Terraform, Ansible, Cloudera/HDP, Spark, NiFi—with practical release-train and automation experience that keeps production systems reliable. He routinely balances strategy and “keeping his hands dirty,” mentoring teams while shaping long-term platform roadmaps and Agile transformations. His background in automatics and early research (PhD student) gives him a systems-thinking approach to complex integration and deployment challenges. Colleagues would note his blend of pragmatic engineering, operational rigor, and a wry, no-nonsense leadership style that surfaces common-sense solutions.
11 years of coding experience
12 years of employment as a software developer
Warsaw University of TechnologyXIV L.O.337
Polish, English, German, Italian
Github Skills (20)
teradata8
spark7
data-lake6
kylo6
scalable5
hadoop5
apache5
java5
apache-spark5
etl4
apache-atlas3
atlas3
big-data3
lakes2
emr2
Programming languages (4)
Github contributions (5)
LeszekLeszczynski/prometheus
Jul 2019 - May 2021
Contributions:6 pushes, 1 branch in 1 year 9 months
LeszekLeszczynski/kylo
May 2017 - May 2017
Contributions:11 pushes, 3 branches in 12 days
thinkdata-lakelicensedbig-datakylo
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