Dmitry Janushkevich
Sr. Vulnerability Researcher at Zero Day Initiative
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolDmitry Janushkevich is a senior vulnerability researcher with 13 years of hands-on experience in low-level security, vulnerability discovery, fuzzing and exploitation, currently at Zero Day Initiative. He has a strong hardware and embedded-systems pedigree from leading security engagements at F-Secure, assessing automotive ECUs, in-flight systems, NFC devices and IoT products, and has authored a U-Boot secure-boot whitepaper. Dmitry’s published findings include multiple high-impact advisories across Microchip SoCs and bootloaders, Barco ClickShare, and several widely used commercial products (Oracle Outside In, VMware Tools), demonstrating both deep kernel/firmware expertise and production-grade exploit development. He contributes to embedded open-source projects like ChameleonMini, emphasizing firmware quality and NFC/emulation features, which complements his practical experience with contactless systems. Colleagues describe him as collaborative and keen to both learn from and mentor experts, while his Github handle “little pwny” hints at a playful yet serious focus on offensive research.
13 years of coding experience
12 years of employment as a software developer
Bachelor of Science (BSc), Computer Engineering, Bachelor of Science (BSc), Computer Engineering at Belaruski Dzjaržauny Universitet Informatyki i Radyjoelektroniki
English, Russian, Russian, Polish, Danish
Stackoverflow
211reputation
7kreached
2answers
5questions
Github Skills (21)
mifare10
firmware10
nfc10
c1110
c1710
sys10
card10
embedded10
emulation10
reader9
rfid9
interfacing8
memory-management8
hardware-interface8
audio6
Programming languages (5)
Github contributions (5)
emsec/ChameleonMini
Oct 2016 - Nov 2017
The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was developed by https://kasper-oswald.de. The device is available at https://shop.kasper.it. For further information see the Getting Started Page https://rawgit.com/emsec/ChameleonMini/master/Doc/Doxygen/html/_page__getting_started.html or the Wiki tab above.
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:10 commits, 10 PRs, 51 comments in 1 year 1 month
Contributions summary:Dmitry primarily focused on developing the firmware for the ChameleonMini contactless smartcard emulator. Their contributions included implementing features for the Mifare Ultralight, integrating EV1 support, and enhancing the command-line interface. They also worked on making code const-correct and refactoring for array count computations, showcasing a focus on code quality and embedded system functionalities.
emulatorsmartcardsniffershopreader
dev-zzo/ntcore
Dec 2014 - Mar 2016
Contributions:65 commits, 43 pushes in 1 year 3 months
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