Tomasz Jurkiewicz
Senior Full Stack Developer at Freelancer
Torun Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolTomasz Jurkiewicz is a Senior Full Stack .NET Developer with 11 years of experience building and optimizing cloud-native applications, primarily on Azure and .NET (4.5, Core, 5-8). He excels at end-to-end performance tuning—rewriting APIs, optimizing SQL procedures and query plans, and cutting IO/CPU by orders of magnitude—while also bridging frontend and backend with hybrid AngularJS/Angular migrations. At IMI - Agrippa Solutions he architected Azure solutions, integrated Auth0, resolved memory leaks and serialization limits, and created CI/CD pipelines and private NuGet artifacts to speed delivery. A pragmatic problem solver, he has a track record of refactoring legacy Node.js services into modern .NET, implementing advanced DI/Dapper patterns and TVP mappings, and introducing ZStandard for heavy datasets. Based in Torun, Poland, Tomasz combines hands-on implementation with mentoring, code reviews and technical interviewing, and routinely evaluates SaaS options to match business needs.
11 years of coding experience
4 years of employment as a software developer
Master of Science (M.Sc.) Applied Informatics, Master of Science (M.Sc.) Applied Informatics at Nicolaus Copernicus University
Polish, English
Stackoverflow
1reputation
469reached
0answers
1question
Github Skills (53)
api-client10
testing10
websocket10
color-scheme10
api10
rest-api10
insomnia9
multiselect9
portable9
api-rest9
http9
conemu9
rest9
vue9
mintty9
Programming languages (4)
Github contributions (5)
Jooraz/js-xlsx
Jul 2019 - Sep 2022
XLSX / XLSM / XLSB (Excel 2007+ Spreadsheet) / ODS parser and writer
Contributions:1 release, 1 push in 3 years 2 months
xlsxcsvodsxlsbxlsm
Jooraz/js-drop-merge-sort
Jan 2017 - Dec 2019
Contributions:30 commits, 22 pushes, 1 branch in 3 years
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