Sergei Ledvanov
Senior Fullstack Engineer at Wise Ltd.
Estonia
Summary
👤
Senior🎓
Top SchoolSergei Ledvanov is a Senior Fullstack Engineer based in Estonia with 15 years of experience building and leading teams to deliver full-cycle, production-grade software. He specializes in scalable microservice architectures, fraud-reduction systems and data-driven tooling using Java, Spring Boot, Kafka, Typescript and cloud-native observability stacks like Prometheus and ELK. At Wise he architects and implements dozens of services that combine big data and machine learning to cut chargebacks and operational risk. Earlier roles span technical leadership in gaming and back-office platforms, where he moved from Flash and Flex to modern web stacks while owning deployment and incident response. Known for turning ambiguous product needs into clear, testable engineering plans, he pairs hands-on coding with team mentoring and operational discipline.
15 years of coding experience
6 years of employment as a software developer
bachelor, Computers and Systems Engineering, bachelor, Computers and Systems Engineering at Tallinna Tehnikaülikool
Russian, English, Estonian
Stackoverflow
2,201reputation
243kreached
17answers
92questions
Github Skills (70)
constructor10
flair10
java10
query-parser10
spring-boot10
spring10
parsing10
atom-plugin10
security9
spring-security9
parser9
caching9
data-analytics8
gulp8
creative-commons8
Programming languages (4)
Github contributions (5)
viz-centric/flair-pulsar
Jul 2019 - Jan 2022
Service responsible for event driven insights in Flair
Contributions:6 PRs, 24 pushes, 11 branches in 2 years 6 months
flairinsightsevent-driven
dstern95/flashdevelop
Feb 2011 - May 2012
Contributions:25 commits in 1 year 3 months
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