Hristo Vrigazov
Senior Machine Learning Engineer at LABS.IO
Sofia-City, Bulgaria
Summary
👤
Senior🎓
Top SchoolHristo Vrigazov is a Senior Machine Learning Engineer with a decade of software experience and over six years focused on ML, specializing in computer vision and NLP for real-world products like interior monitoring and autonomous vehicle perception. He has driven performance improvements such as a 2x faster vectorized postprocessing pipeline (NumPy/CuPy) and built data pipelines and annotation tooling, blending research rigor from a Robotics M.Sc. with production-grade engineering. Comfortable across Python, C++ and ROS, he has applied probabilistic methods (Unscented Kalman filters) and association algorithms in safety-critical contexts and accelerates prototyping at labs and startups. An active open-source contributor, his work ranges from TensorFlow interpolation utilities to improving multilingual date parsing tests (including Bulgarian) for the popular dateparser project. Based in Sofia, he combines strong academic results with hands-on delivery, often tackling the less glamorous but high-impact tasks that make ML systems reliable in production.
10 years of coding experience
4 years of employment as a software developer
Nanodegree, Self-driving cars, 10/10 projects passed, Nanodegree, Self-driving cars, 10/10 projects passed at UdacityBachelor's degree, Computer Science, 5.68/6, Bachelor's degree, Computer Science, 5.68/6 at Sofia University St. Kliment OhridskiMath High School "Geo Milev" Pleven
English, Bulgarian, Russian
Stackoverflow
1,377reputation
125kreached
21answers
39questions
Github Skills (13)
pytest10
python10
testing10
java6
pytorch6
nodejs6
googlespeechapi6
voice-recognition6
javascript6
chromium6
sonarqube6
mockito6
fest4
Programming languages (13)
Github contributions (5)
scrapinghub/dateparser
Dec 2016 - Feb 2017
python parser for human readable dates
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:7 commits, 1 PR, 4 comments in 2 months
Contributions summary:Hristo primarily contributed to enhancing the test suite for the `dateparser` library. Their commits focused on adding new tests and expanding existing ones, specifically targeting the parsing of dates and times in various languages. This included implementing tests for Bulgarian language support, ensuring accurate date and time conversions, and covering different date formats and relative time expressions. The user also updated existing tests to include more test cases.
parserpython
hristo-vrigazov/ivi-decision-maker
Mar 2017 - Oct 2019
Contributions:1 PR, 1 push, 8 branches in 2 years 7 months
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