Greg Karelin
Senior Full Stack Engineer at Oneday
Antalya, Antalya, Serbia
Summary
👤
Senior🎓
Top SchoolGreg Karelin is a Senior Full Stack Engineer and experienced engineering manager with over a decade of hands-on JavaScript and TypeScript work and 16+ years of broader technical leadership. He blends people and project management expertise with deep full-stack skills—React, Next.js, Node.js, GraphQL and MongoDB—to deliver tailored solutions that combine open-source foundations with bespoke business needs. Greg has led teams and delivery at scale across finance, marketplaces and government projects, consistently reducing delivery timelines and technical debt through process improvements and lean methodologies. He’s comfortable switching between coding, interim engineering management and consulting, having rebuilt web services from scratch and driven platform migrations that cut build times and estimation errors significantly. Based in Antalya, he pairs a mathematics background with a practical, metrics-driven approach to shipping reliable products and mentoring teams.
10 years of coding experience
7 years of employment as a software developer
Бакалавр физико-математических наук, Бакалавр физико-математических наук at Irkutsk State UniversityBachelor of Mathematics, Mathematics, Bachelor of Mathematics, Mathematics at Irkutsk State Pedagogical University
Russian, English, Turkish, Serbian, Croatian, Macedonian, Bosnian
Github Skills (93)
javascript10
api10
payload10
typescript10
react-typescript10
nodejs10
mongodb10
react10
backoffice9
cms9
dashboard9
textarea9
payloadcms9
launcher9
nextjs9
Programming languages (5)
Github contributions (5)
grundiss/contenter
Feb 2017 - Jan 2018
Contributions:71 PRs, 96 pushes, 44 branches in 11 months
grundiss/docker_dind-python-node-awscli
Jul 2018 - Aug 2021
Contributions:7 pushes, 1 branch in 3 years 1 month
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