Serhii Zahranychnyi
Senior Software Engineer at Capital One
McLean, Virginia, United States
Summary
👤
Senior🎓
Top SchoolSerhii Zahranychnyi is a Senior Software Engineer with 11 years of experience designing and delivering high-impact, production-grade systems across fintech, marketing, and AI platforms. He has repeatedly accelerated operations—cutting ETL from 12 hours to 30 minutes, speeding image processing from seconds to fractions, and boosting campaign throughput by 1000x—by combining Python, Kubernetes, and cloud-native DevOps. A pragmatic technical leader, Serhii has led backend teams, mentored engineers, and implemented AI-assisted tooling that raised QA and marketing automation efficiency by 30–50%. Currently based in McLean, VA and working at Capital One, he pairs hands-on engineering with strong cross-functional communication to reliably ship complex projects. Notably, he has a track record of cost-saving infrastructure designs and creative operator-in-the-loop solutions that improved conversational AI quality to near 95%.
11 years of coding experience
12 years of employment as a software developer
BA/MA Equivalent Computer and Information Sciences and Support Services, BA/MA Equivalent Computer and Information Sciences and Support Services at Zaporizhia State Engineering Academy
English, Ukrainian
Github Skills (22)
ldap10
agriculture10
social-networking10
environmental9
humhub9
php9
climate-change9
vue8
middleware8
cron8
vuex7
job-scheduler7
open-source7
pouchdb7
api-template5
Programming languages (7)
Github contributions (5)
zagran/wayforpay
Apr 2020 - Jan 2021
Python wrapper for WayForPay API
Contributions:2 commits, 1 PR, 2 pushes in 8 months
python
zagran/django-boilerplate
Jan 2024 - Oct 2024
Django API template for quick start.
Contributions:11 PRs, 14 pushes, 7 branches in 9 months
api-templatedjango
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