Brandon Weislak
Product Manager at Interactive Brokers
Chicago, Illinois, United States
Summary
👤
Senior🎓
Top SchoolBrandon Weislak is a product manager with 11 years of experience building and refining Interactive Brokers’ award-winning trading and brokerage platforms. He combines deep technical fluency—Java, C#, Python, SQL, UNIX/Linux and even M/MUMPS—with hands-on product work to turn complex trading workflows into polished customer experiences. Having started in technical support and implementation at both Interactive Brokers and Epic, he brings rare empathy for front-line clients and a strong aptitude for diagnosing thorny operational problems. He regularly partners with senior management, sales, client services, and engineering to prioritize features that move metrics and delight sophisticated users. Brandon also creates marketing and editorial materials that have shaped external perceptions of the platform, demonstrating skill in both technical storytelling and go-to-market execution. Based in Chicago and trained in mathematics and classical humanities, he pairs analytical rigor with creative problem-solving in financial technology.
11 years of coding experience
1 year of employment as a software developer
Bachelor of Arts, Mathematics, Classical Humanities, Bachelor of Arts, Mathematics, Classical Humanities at Xavier University
Github Skills (14)
rest8
openapi7
oas6
webapi6
csharp5
interactive-brokers5
twsapi3
dotnet-core3
pandas-datareader2
python1
quants1
analytics1
pandas1
data-science1
Programming languages (2)
Github contributions (5)
weislakb/weislakb
Apr 2016 - Feb 2026
Contributions:2 pushes, 2 branches in 10 years
weislakb/tws-api-tester
Dec 2014 - Oct 2015
Contributions:5 commits, 2 pushes, 1 branch in 9 months
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