Andrii Kolesnyk
Lead Full Stack Engineer at EPAM Systems
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolAndrii Kolesnyk is a Lead Full Stack Engineer based in Barcelona with 12 years of professional software engineering experience and over 3 years in solution architecture. He has led large cross-functional teams and architected high-scale systems—most notably a global e‑commerce platform handling 1M daily requests and a MACH migration of 100+ sites—while winning multiple presales and technology impact awards. Comfortable from UX to backend, Andrii has delivered real-time financial systems, microfrontend and DAM migrations, voice assistant integrations, and mobile banking products, often owning end‑to‑end delivery and mentoring dozens of engineers. He pairs hands‑on coding with strategic audits and roadmaps that measurably improved performance and reliability for enterprise clients. A practical problem-solver, he also has a track record of shrinking processing times by large margins (e.g., billing and admissions systems) and driving adoption of scalable architectures across global brands.
12 years of coding experience
14 years of employment as a software developer
Master's degree Software Engineering, Master's degree Software Engineering at Donetsk National Technical UniversitySolution Architecture School Graduate Architectural Engineering, Solution Architecture School Graduate Architectural Engineering at EPAM UpSkillOuttalent
English, Ukrainian, Russian
Github Skills (66)
datagrid10
javascript10
angular10
cli10
typescript10
grid-layout10
grid10
angular-cli10
ui-grid10
single-page9
parser9
inline-css9
npm9
angularjs9
preset9
Programming languages (4)
Github contributions (5)
kolesnik/weather-widget
Dec 2022 - Jun 2023
Contributions:3 pushes, 1 branch in 6 months
kolesnik/caiman
Nov 2016 - Nov 2016
Contributions:4 PRs, 10 pushes, 1 branch in 7 days
time-seriesdata-librarytimesseries-data
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