Andreas Lennartz
Managing Partner at ROOS IT GmbH & Co. KG
Aachen, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolAndreas Lennartz is a managing partner and founder with nearly 20 years of experience modernizing SAP-driven HR and logistics processes, having led over 100 projects for clients like Deichmann, Hugo Boss and Stada. He combines hands-on C# and SQL/BI development skills with deep functional SAP expertise (ESS/MSS, Fiori, NetWeaver) to deliver pragmatic, production-ready solutions rather than slideware. Based in Aachen, he has repeatedly taken responsibility for end-to-end implementations—from SuccessFactors rollouts for mid-sized firms to SAP work in security-sensitive environments. His background as a Dipl-Informatiker and decade-plus in consulting gives him a rare blend of technical fluency and operational delivery focus.
11 years of coding experience
Computer Sience, Computer Sience at Universiti Sains MalaysiaDipl-Informatiker, Computer Sience, 1,3, Dipl-Informatiker, Computer Sience, 1,3 at FH Aachen University of Applied Siences
English, Italian, French, malaiisch, German
Stackoverflow
112reputation
8kreached
7answers
4questions
Github Skills (24)
dotnet10
etl10
etl-framework10
csharp-core10
data-integration10
ssis9
visual-studio-code-extension7
database6
design-patterns6
casting6
code-generation6
collation6
azure-active-directory6
csv5
nuget5
Programming languages (2)
Github contributions (5)
roadrunnerlenny/programmingSSIS
Oct 2016 - Sep 2017
Contributions:4 commits, 3 pushes, 1 branch in 11 months
etlbox/etlbox
Aug 2018 - Aug 2020
A lightweight ETL (extract, transform, load) library and data integration toolbox for .NET.
Contributions:36 releases, 501 commits, 12 PRs in 2 years
data-integrationdotnetetlcsharp-coreetl-framework
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