Osama El-hariri
Senior Full Stack Engineer at Kittl
Germany
Summary
👤
Senior🎓
Top SchoolOsama El-hariri is a product-oriented Senior Full Stack Engineer based in Germany with nine years of professional experience and over seven years focused on shipping user-facing, scalable web and mobile products. He combines hands-on expertise across React, Flutter, and Go with proven operational ownership—setting up CI/CD, monitoring with Sentry/Grafana, and leading on-call and hiring responsibilities. As a co-founder he architected a rapid MVP and end-to-end stack (web, mobile, backend) while at CleverCue, and at Kittl now continues to drive product outcomes. He contributes to open-source projects such as Maskbook, improving plugin UX and performance for decentralized web integrations, showing curiosity beyond conventional stacks. Known for fast iteration under pressure, he pairs pragmatic engineering with client-facing validation to turn ideas into shipping features.
9 years of coding experience
6 years of employment as a software developer
Bachelor's of Sience, Computer Science, Bachelor's of Sience, Computer Science at American University of Beirut
Github Skills (13)
typescript10
javascript10
typescripts10
react10
typescript-types10
blockchain9
web3js9
f9
refactoring9
debug8
browser-extension8
ethereum8
ui-design7
Programming languages (5)
Github contributions (5)
DimensionDev/Maskbook
Jul 2021 - Aug 2021
The portal to the new, open Internet. ([I:b])
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 reviews, 7 commits, 5 PRs in 29 days
Contributions summary:Osama contributed to the Maskbook project by adding and improving a Good Ghosting plugin, which appears to integrate with a decentralized finance (DeFi) application. Their work included implementing new features like reading game information, adding balance checks, and improving error messages within the plugin's user interface. Additionally, the user refactored code for improved readability and maintainability and addressed performance issues by removing dependencies.
ethereumweb3decentralizednftpeer-to-peer
OsamaElHariri/SpiritChainRoguelite
Oct 2019 - Apr 2021
Awesome roguelite written in TypeScript using Phaser
Contributions:140 commits, 2 pushes in 1 year 6 months
javascriptphasertypescriptroguelite
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