Karol Sienkiewicz
Senior Software Engineer at Keyloop
Warsaw, Masovian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolKarol Sienkiewicz is a Senior Software Engineer based in Warsaw with around a decade of experience building and operating distributed .NET systems. He has strong expertise in .NET Core, microservices, EF Core and cloud-native tooling, recently applying Temporal, n8n and Terraform on AWS to orchestrate resilient back-end workflows. Across roles at Keyloop, inspeerity and banqUP he’s designed APIs, worked with both SQL and NoSQL databases and focused on observability using tools like New Relic. His background in applied mathematics gives him a data-minded approach to system design and troubleshooting, able to bridge complex domain requirements with pragmatic engineering. Notably, he moved from Avaloq parametrization and PL/SQL early in his career into modern distributed architectures, showing adaptability across financial and SaaS domains.
9 years of coding experience
10 years of employment as a software developer
Master's degree, Applied mathematics, Master's degree, Applied mathematics at University of Warsaw
Polish, English
Github Skills (14)
subtyping10
caller9
new-project8
testing4
development-environment3
biomedical3
data-science2
science2
python2
genomics1
visualization1
sumo1
similarity1
bioinformatics1
Programming languages (4)
Github contributions (5)
ratan-lab/sumo
Sep 2019 - Feb 2022
Subtyping tool for multi-omic data
Contributions:3 releases, 116 commits, 17 PRs in 2 years 5 months
subtypingomicmulti-omic-data
sienkie/multi-omics-hackathon
Aug 2021 - Sep 2022
Contributions:14 commits, 6 pushes in 1 year
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