Gergely Kalman
Founder at unbuffered.io
Valencia, Valencian Community, Spain
Summary
👤
Senior🎓
Top SchoolGergely Kalman is a founder and seasoned software engineer with 11 years of experience building high-performance systems, consultancies, and startups from Valencia, Spain. He leads unbuffered.io and previously co-founded and ran Buffered VPN, blending hands-on engineering, product strategy, and business development. His background spans low-latency media platforms built in C and Python, security and PCI-DSS work, and blockchain consulting under NDA, reflecting a mix of systems-level expertise and pragmatic security awareness. Known for a hacker mindset—“I love to break stuff”—he thrives on optimizing throughput and reliability, having engineered single-machine solutions that handled tens of gigabits with sub-100ms latency. Quietly influential, he helped shape hiring and vetting practices early at Toptal, demonstrating an ability to scale technical teams as well as infrastructure.
11 years of coding experience
4 years of employment as a software developer
Information Technology, Information Technology at Eötvös Loránd University
Hungarian, English
Stackoverflow
177reputation
6kreached
9answers
0questions
Github Skills (47)
pyinstaller10
confluence10
cffi10
exporter10
freeze10
package10
bundle9
py2app9
revit-api9
python9
py2exe9
reverse-engineering8
conda8
credit-card8
financial8
Programming languages (4)
Github contributions (5)
gergelykalman/torspray
Feb 2022 - May 2022
Contributions:5 releases, 25 commits, 25 pushes in 2 months
gergelykalman/confluence-markdown-exporter
Mar 2022 - Aug 2022
A very simple Confluence to Markdown exporter
Contributions:7 reviews, 15 commits, 15 PRs in 4 months
exporterconfluencemarkdown-to-confluenceto-markdownmarkdown
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