Krzysztof Cieslinski
CEO & CTO at Cognitum
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolKrzysztof Cieslinski is a seasoned technology leader and entrepreneur with 13 years of hands-on software engineering experience and nearly 15 years in architecture and technical leadership. As CEO & CTO of Industrial Cortex and longtime CTO of Cognitum, he has shaped AI, NLP, computer vision and cloud-native solutions for clients across Europe, Australia, and the Americas. He co-founded multiple ventures—LiveComply, The Hyperlabs, Australian World Technologies—bringing product-focused R&D together with pragmatic delivery for regulated and compliance-heavy domains. A pragmatic backend engineer at heart, Krzysztof has contributed to prominent open-source drivers for Apache Cassandra (C# and C/C++), improving error handling, data retrieval APIs and cross-platform serialization tests. His profile blends deep academic grounding in IT and econometrics with applied expertise in semantic web, embedded systems and robotic document automation. Comfortable shifting between code, architecture and go-to-market strategy, he excels at turning research-grade ideas into production-grade software.
13 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Information Technology & Econometrics, Bachelor's degree, Information Technology & Econometrics at Warsaw University for Life SciencesInformation Technology, Information Technology at Alexander Technological Educational Institute of Thessaloniki
Polish, English
Github Skills (22)
unit-testing10
c-language10
cassandra10
clientside10
net10
databases10
dotnet10
asp-net10
device-driver10
driver10
dotnet-core10
webclient10
csharp10
cprogramming-language10
cassandra-database10
Programming languages (2)
Github contributions (5)
datastax/csharp-driver
Jan 2013 - Jan 2014
DataStax C# Driver for Apache Cassandra
Role in this project:
Back-end Developer
Back-end DeveloperContributions:28 commits in 11 months
Contributions summary:Krzysztof made several contributions related to the DataStax C# Driver for Apache Cassandra. Their work included implementing new error types, adding methods for data retrieval ("First" and "FirstOrDefault"), and enhancing metadata information within the driver. The user also refactored the "Playground" example. Their contributions involved modifying core files related to native Cassandra interactions and exception handling.
dotnetdriverdatastax-drivernosqlcassandra
datastax/cpp-driver
Nov 2013 - Jan 2014
DataStax C/C++ Driver for Apache Cassandra
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits in 1 month
Contributions summary:Krzysztof contributed significantly to the integration and unit testing of the C/C++ driver for Apache Cassandra. Their work included developing and testing data structure support, focusing on features like sets, lists, and maps. They also addressed platform-specific build issues and made minor code style and typo corrections. The user's efforts enhanced the driver's functionality and compatibility, specifically focusing on the serialization and deserialization aspects, as evidenced by the Windows-specific workarounds.
nosqlcassandraapachedatabasedatastax
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.