Tom Szczesny
Software Developer - Quant Tools at Kona (open source k3)
Pennsylvania, United States
Summary
🤩
Rockstar🎓
Top SchoolTom Szczesny is a seasoned software developer with 20 years of experience focused on high-performance quantitative tools and low-level systems programming, currently contributing to the open-source Kona (k3) K implementation. He combines deep expertise in C and array languages (APL/A+/k3) with a long background in portfolio performance, risk analysis and institutional asset management from a decades-long career at BNY Mellon. Tom has a track record of resolving hundreds of issues and improving numeric correctness and performance in core interpreter code, including work to support 32-bit platforms and hard-to-reproduce crashes. Based in Pennsylvania, he pairs rigorous mathematical training (MA/BA in Mathematics, PhD ABD in Operations Research) with pragmatic engineering, often tackling subtle edge cases that surface only in production-grade quant systems.
20 years of coding experience
42 years of employment as a software developer
BA, Mathematics, BA, Mathematics at University at BuffaloPHD (ABD), Operations Research, PHD (ABD), Operations Research at New York University - Polytechnic School of Engineering
Github Skills (8)
c1710
debugging10
floating-point10
debug10
programming-language10
float3210
c1110
integer-arithmetic10
Programming languages (1)
Github contributions (5)
kevinlawler/kona
Jul 2005 - Jan 2023
Open-source implementation of the K programming language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:42 releases, 1049 commits, 31 PRs in 17 years 9 months
Contributions summary:Tom primarily worked on the open-source implementation of the K programming language, addressing bugs and making performance improvements. The commits indicate the user's focus on low-level code, including comparisons, integer and floating-point calculations. The user also made changes to support 32-bit machines and incorporated fixes for module operations.
code-golfdependent-typesaplschemelisp
tavmem/a
Mar 2013 - Dec 2015
Contributions:32 commits, 12 pushes, 1 branch in 2 years 9 months
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