Denis Kolosov
Senior Software Engineer at Qiwi
Tbilisi, Georgia
Summary
👤
Senior🎓
Top SchoolDenis Kolosov is a senior software engineer with over a decade of experience building backend systems and integrations primarily in Python and Clojure, with a strong track record in payments, e-commerce, logistics and platform engineering. He has delivered measurable business impact—driving a 20% transaction uplift through payment integrations and improving conversion via a payment-routing dashboard—while modernizing legacy codebases with strict typing and reusable authentication services. Denis combines hands-on system design (Django/Flask, Postgres, RabbitMQ, Redis) with operational discipline (Ansible deployments, TDD) and has shipped both consumer-facing apps and developer-focused platform features like visual programming backends. Based in Tbilisi, he brings a pragmatic engineering style that favors automation and developer productivity, having saved teams dozens of hours through shared services and tooling. An early background in systems and optics hints at a methodical, systems-oriented approach to problem solving beyond typical web development.
11 years of coding experience
15 years of employment as a software developer
Master's degree Laser and Optical Technology/Technician, Master's degree Laser and Optical Technology/Technician at St. Petersburg State University of Telecommunications named after prof. M.A. Bonch-Bruevich
English, Russian, Ukrainian
Github Skills (5)
python7
dsl7
emacs2
business-intelligence1
chatgpt1
Programming languages (3)
Github contributions (5)
deniskolosov/online_lectorium
Jan 2021 - Nov 2024
Contributions:1 push, 1 branch in 3 years 11 months
deniskolosov/dkolme
Apr 2021 - Sep 2023
Contributions:14 pushes in 2 years 5 months
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