Jarosław Waliszko
Technical Architect at StoneX Retail
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolJarosław Waliszko is a Technical Architect based in Krakow with 13 years of hands-on experience designing and modernizing large-scale, distributed .NET systems for finance and enterprise customers. He combines deep C#/.NET expertise with performance-oriented T-SQL, messaging (ActiveMQ/Artemis), in-memory caching (Ignite), and cloud/container tooling (Docker, Kubernetes, Azure). His work spans full-stack and low-level interests—system programming roots, DirectX/C++ stints, and ongoing focus on execution domains in electronic trading—bringing both pragmatic engineering and research curiosity to complex architectures. At StoneX he progressed from senior engineer to technical lead and now architect, driving modernization, performance tuning, and observability across high-throughput systems. Comfortable in multinational teams, he repeatedly delivers reliable, event-driven solutions (CQRS/DDD, SignalR) and enjoys digging into low-level performance details that often go unnoticed.
13 years of coding experience
15 years of employment as a software developer
M.Sc. Eng., Applied Computer Science, Faculty of EAIiE, Department of Automatics, M.Sc. Eng., Applied Computer Science, Faculty of EAIiE, Department of Automatics at Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
English, Polish
Stackoverflow
17,003reputation
4.2mreached
155answers
146questions
error-handling
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redirect
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dictionary
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console-application
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weak-references
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jsonp
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Github Skills (89)
validation10
chutzpah10
css10
cdn10
opencover9
javascript9
jquery9
headless-browser9
jsonp9
phantomjs9
istanbul9
js9
coverage9
asp-net9
converter9
Programming languages (4)
Github contributions (5)
jwaliszko/ExpressiveAnnotations
Jul 2013 - Oct 2017
Annotation-based conditional validation library.
Contributions:28 releases, 565 commits, 9 PRs in 4 years 3 months
conditionalvalidation-libraryannotationvalidation
jwaliszko/webget
Nov 2013 - May 2017
Contributions:13 commits, 1 push in 3 years 6 months
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