Serg Z
Kotlin Backend Developer at Infoguild
Russia
Summary
🤩
Rockstar🎓
Top SchoolSerg Z is a seasoned Kotlin/Java backend developer with over 18 years in IT and a decade of focused professional experience building microservices and knowledge platforms. He is Oracle-certified, an active open-source maintainer with notable impact in the Semantic Web community, and has driven ontology and IEC CIM‑spec-based digital twin projects for industrial customers. Recent work spans Kotlin, Quarkus/Spring Boot, Kafka, Keycloak, Blazegraph/Apache Jena, and production-grade tooling like Testcontainers, Elasticsearch and MinIO. Comfortable with DDD and code review, he prefers remote or hybrid roles and is selective about location and hiring processes, requesting written pre-screening questions from recruiters. With a background in astrophysics from MIPT, he brings analytical rigor and a long track record of moving complex, standards-driven systems from specification to reliable production. An avid proponent of “make jar, not war,” Serg combines practical engineering discipline with deep domain expertise in semantic technologies.
10 years of coding experience
19 years of employment as a software developer
Bachelor’s Degree, Astrophysics, Bachelor’s Degree, Astrophysics at Moscow Institute of Physics and Technology (State University) (MIPT)Physics, Physics at Siberian Federal University
English, Russian
Stackoverflow
835reputation
26kreached
50answers
1question
Github Skills (97)
jena10
semantic-web10
owl10
apache-jena10
api10
lingvo10
java10
morphology10
rdf10
owl-api10
sparql10
protege10
linked-data10
semantic10
r2rml10
Programming languages (5)
Github contributions (5)
crowdproj/opentutor
Oct 2022 - Apr 2025
OpenTutor - a flashcard system to learn words
Contributions:1 release, 118 PRs, 449 pushes in 2 years 6 months
lingvoflashcardwordsjavacardpython3
greendatasoft/ru-grammar-tools
Feb 2022 - Mar 2022
a set of tools to work with russian grammar
Contributions:3 releases, 93 commits, 2 PRs in 1 month
dictionarytextmatetree-sitterrussian-specificgrammar
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.