Sergey Royz
Founder at Toptal
Prague, Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolSergey Royz is a software engineer and founder with 12 years of experience building production-grade systems, currently based in Prague and running the file-sharing service qrshare.io. He combines deep technical architecture skills—from microservices, cloud migrations and analytics to payment gateway integrations—with hands-on leadership as CTO of Swipelux and a senior engineer at Toptal. His background includes high-scale work at Cisco, HPE and Yandex, plus multi-bank mobile-banking projects and integrations with legacy banking systems, reflecting strong domain expertise in fintech and distributed systems. A Moscow Institute of Physics and Technology graduate, Sergey pairs scientific rigor with practical delivery, often turning pet projects into globally used services. Notably, qrshare began as a hackathon prototype and grew into a daily-used tool with analytics-driven evolution, illustrating his ability to iterate products from prototype to persistent service.
12 years of coding experience
13 years of employment as a software developer
Master, Computer Science, Master, Computer Science at Moscow Institute of Physics and Technology (State University) (MIPT)
English, Czech, Russian
Stackoverflow
1,033reputation
478kreached
21answers
17questions
Github Skills (185)
gtk10
arduino-library10
pendulum10
encoder10
teensy10
qt9
robotics9
simulations9
bluepill9
stepper9
data-visualization9
python9
attiny9
matplotlib9
robot9
Programming languages (16)
Github contributions (5)
zjor/usb-traffic-light
May 2015 - Jan 2022
Contributions:17 commits, 16 pushes, 1 branch in 6 years 10 months
zjor/arduino
Jun 2016 - Aug 2022
Arduino Projects
Contributions:78 commits, 87 pushes, 1 branch in 6 years 3 months
visual-programming-languagearduino
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