Ivan Kalchev
Senior Software Engineer at Redis
Sofia, Sofia-City, Bulgaria
Summary
👤
Senior🎓
Top SchoolIvan Kalchev is a Senior Software Engineer with nine years of experience building distributed systems, security-conscious platform features, and production-grade services across VMware, LatticeFlow AI and now Redis Search. He combines a strong academic foundation (MSc in Advanced Computer Science) with hands-on expertise in cryptography, network security and systems architecture, and has driven lifecycle, availability and security work in large virtualization and AI infrastructure products. An active open-source contributor, he implemented core HomeKit Accessory Protocol functionality in Python—adding camera support and robust bridging for HTTP-controlled accessories—which highlights his ability to bridge protocol design and practical interoperability. Known for pragmatic problem-solving, he’s finishing a research paper while continuing to ship scalable, secure systems and explore IoT use cases from Sofia.
9 years of coding experience
9 years of employment as a software developer
National High School of Mathematics and Science "Akad. L. Chakalov"Master of Science (MSc), Advanced Computer Science with IT Management, Master of Science (MSc), Advanced Computer Science with IT Management at The University of ManchesterIntensive Course on Software Development Topics (1 Month), Intensive Course on Software Development Topics (1 Month) at VMware - Talent Boost Academy
English, Bulgarian, German
Stackoverflow
345reputation
20kreached
4answers
10questions
Github Skills (19)
python10
homekit10
iot10
api-design9
apim9
api9
camera9
multithreading8
asynchronous8
async8
networking7
raspberry-pi7
longest-path6
borrow-checker6
python-asyncio6
Programming languages (5)
Github contributions (5)
ikalchev/HAP-python
Oct 2017 - Dec 2022
A python implementation of the HomeKit Accessory Protocol (HAP)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:46 releases, 9 reviews, 263 commits in 5 years 2 months
Contributions summary:Ivan focused on implementing core functionality for the HomeKit Accessory Protocol (HAP) in Python. They added a more robust stopping mechanism for accessories, improved documentation, and fixed several minor bugs related to server closure. They also implemented a bridging accessory that enables HTTP requests to update characteristics of HAP clients. Further contributions include fixes for compatibility issues and adding support for camera accessories, indicating a deep understanding of the HAP protocol and its implementation.
homekit-accessory-protocolpythonhomekitraspberry-pipython-implementation
ikalchev/py-sds011
Feb 2018 - Aug 2019
Python 3 interface to the SDS011 air particulate density sensor.
Contributions:6 commits, 2 PRs, 5 pushes in 1 year 7 months
pythonsds011python-3airsensor
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