Oussama Hamdi
Senior Software Developer at topCode Softwares
Sfax, Tunisia
Summary
🤩
Rockstar🎓
Top SchoolOussama Hamdi is a senior software developer based in Sfax, Tunisia, with eight years of professional experience and a strong focus on Python and Node.js. He currently leads backend work at topCode Softwares and previously ran a freelance practice, combining production delivery with hands-on engineering. An active open-source contributor, he has made deep cryptographic and protocol-level contributions to popular Telegram client libraries like gramjs and Telethon, including IGE and RSA implementations and AuthKey handling. His work spans practical feature additions (e.g., admin/edit restrictions, retry strategies) and low-level security plumbing, demonstrating both product-minded and security-aware engineering. Comfortable across the stack, he pairs academic training in software development with proven ability to ship reliable, well-documented libraries used by broad developer communities.
9 years of coding experience
3 years of employment as a software developer
Bachelor of Applied Science - BASc, Software development, Bachelor of Applied Science - BASc, Software development at Higher Institute of Technological Studies of Sfax
English, French, Arabic
Stackoverflow
1,167reputation
274kreached
41answers
12questions
Github Skills (25)
encrypt10
javascript10
telegram-api10
python10
rsa10
crypt10
mtproto10
telegram10
public-key-encryption10
cryptography10
aes-encryption10
c-library10
common-library10
python-lib10
encryption10
Programming languages (13)
Github contributions (5)
gram-js/gramjs
Aug 2019 - Dec 2022
NodeJS/Browser MTProto API Telegram client library,
Role in this project:
Back-end Developer
Back-end DeveloperContributions:50 reviews, 320 commits, 106 PRs in 3 years 5 months
Contributions summary:Oussama implemented core cryptographic functionalities, including IGE encryption/decryption, a factorizator, and an AuthKey implementation, indicating a focus on low-level security within the Telegram client library. They also added helper functions and documented them. Additionally, the user implemented the RSA encryption, completing the crypto utilities package.
mtprotonodejstelegram-clienttelegrambrowser
LonamiWebs/Telethon
Oct 2018 - Aug 2021
Pure Python 3 MTProto API Telegram client library, for bots too!
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 16 commits, 18 PRs in 2 years 11 months
Contributions summary:Oussama primarily contributed to the `telethon` library, a Python Telegram client. Their work included adding features like name mention formatting in HTML and Markdown, introducing a `retry_delay` parameter for auto-reconnection, and removing invalid mentions. They also implemented new functionalities such as `edit_admin` and `edit_restrictions` methods. Furthermore, the user addressed various bugs and improved existing functionalities.
mtprotopythontelegram-clienttelegramtelegram-api
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