Konstantin Pentchev
Vice CTO at Patient21
Sofia, Sofia-City, Bulgaria
Summary
👤
Senior🎓
Top SchoolKonstantin Pentchev is a seasoned software leader and Vice CTO with 12 years of experience building web applications, microservices, and semantic data platforms from Sofia, Bulgaria. He blends hands-on expertise in Java, Spring, ReactJS and AngularJS with a deep background in graph and semantic data gained during a long tenure at Ontotext and work on semantic web frameworks. At Patient21 he progressed from Senior Engineering Manager to Vice CTO, driving engineering strategy and delivery for healthcare-focused products. His career includes technical leadership and team-building roles across startups and enterprise settings, where he consistently bridges backend integrations with user-facing interfaces. Trained as a bioinformatician (MSc, Freie Universität Berlin), he brings a research-informed approach to data problems and an aptitude for applying semantic technologies to real-world domains. Colleagues would note his rare combination of domain knowledge in semantics and practical full‑stack delivery experience.
12 years of coding experience
9 years of employment as a software developer
MSc Bioinformatics, MSc Bioinformatics at Freie Universität Berlin
English, German, Bulgarian
Github Skills (40)
spring10
spring-security10
java10
spring-boot10
switch9
springframework9
versioning8
nvm8
mocking8
spring-data8
jpa7
testing7
nodejs7
javascript7
css7
Programming languages (3)
Github contributions (5)
Ontotext-AD/spring-data-semantic
Jun 2014 - Oct 2015
Contributions:156 commits, 5 PRs, 10 pushes in 1 year 3 months
kpentchev/named-entity-recognition-template
Feb 2019 - Aug 2019
Build a deep learning model for predicting the named entities from text.
Contributions:48 pushes in 6 months
pytorchnlpdeep-learninghydranamed-entities
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