Sergei Ustimenko
Staff Engineer at Holidu
Munich, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolSergei Ustimenko is a Staff Engineer based in Munich with 11 years of experience delivering reliable end-to-end software systems across startups and enterprise domains. He has progressed from Java developer roles into technical leadership and founding-engineer positions, most recently moving from Technical Team Lead at wealthpilot to a staff role at Holidu. Sergei blends hands-on backend expertise with people leadership, having acted as lead engineer at Personio and guided architecture and delivery in fast-moving teams. Comfortable in both greenfield startups and regulated corporate environments, he has a track record of shipping production-grade systems under tight timelines. His academic background in mathematics and computer science from Saint Petersburg State University underpins a pragmatic, analytical approach to problem solving.
11 years of coding experience
12 years of employment as a software developer
Specialist's degree, Mathematics and Computer Science, Specialist's degree, Mathematics and Computer Science at Saint Petersburg State University
English, Russian, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (38)
search-engine10
jvm10
spring10
guava10
spring-mvc10
analytics10
java10
restful10
openjdk10
rest10
spotbugs9
security9
findbugs9
code-analysis9
springframework9
Programming languages (4)
Github contributions (5)
fdesu/jdk
Jun 2019 - May 2025
Read-only mirror of https://hg.openjdk.java.net/jdk/jdk
Contributions:1733 pushes, 2150 branches, 51 tags in 5 years 11 months
openjdk-javajdkopenjdkjavajava-net
fdesu/openjdk
Dec 2018 - Apr 2019
Contributions:91 pushes, 8 branches in 3 months
branchesconsolidatedprotobufprotojdk
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