Erhun Bayçelik
Engineering Lead at Wise
Tallinn, Harju County, Estonia
Summary
🤩
Rockstar🎓
Top SchoolErhun Bayçelik is an engineering leader with 12 years of hands-on software development experience, currently leading engineering at Wise after heading teams at Moss where he helped build core spend-management features. An Oracle Certified Java SE 8 programmer, he blends deep backend expertise with a passion for mentoring—he also teaches at the Software Development Academy in Tallinn. He has a proven track record delivering scalable product features across fintech environments and a pragmatic focus on cross-functional collaboration. Fluent in navigating both startup and scale-stage challenges, he pairs technical rigor with a customer-driven mindset to turn complex payments and cash-flow problems into usable solutions. Even after a decade-plus career, he stays curious about new technologies and best practices, often translating that curiosity into hands-on coaching for junior engineers.
12 years of coding experience
13 years of employment as a software developer
Bachelor's degree Computer Engineering, Bachelor's degree Computer Engineering at Dokuz Eylul University4.78, 4.78 at Inegol Turgut Alp Anadolu Lisesi
English
Stackoverflow
3,619reputation
2.2mreached
106answers
4questions
java
top-5%
Github Skills (101)
junit-test10
testing10
databases10
junit10
docker-container10
rest-api10
test-container10
computer-science10
integration-testing10
markdown10
fundamentals10
middleware10
docker-compose10
yaml10
science10
Programming languages (8)
Github contributions (5)
muzir/azorka.web
Jan 2015 - Apr 2017
Contributions:182 pushes, 2 branches, 2 comments in 2 years 3 months
muzir/codechef
Jan 2015 - Sep 2024
This project consist of algorithm solutions of the codechef site.
Contributions:39 PRs, 316 pushes, 41 branches in 9 years 9 months
algorithm-solutionspythonleetcodejava
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