Kareem “Kemo” OlimSoftware engineer building anti-cheat, reverse-engineering tools and modding frameworks.
About
I'm Kareem — you probably know me as Kemo. 23, from Egypt. Software engineer with 6+ years across high-level and low-level work — game development, anti-cheat systems, modding frameworks, and security at scale.
Download ResumeApps
Tools, game-adjacent utilities, and public experiments you can use right now.
Professional Experience
Relay
August 2026 - PresentSelf-employed
A Windows VPN continuing Voice Chat Tunnel, with persistent app routing and configurable VLESS connections.
- • Evolved Voice Chat Tunnel into Relay with a new identity and a dedicated home at relay.ol.mr
- • Built persistent app routing with Windows process discovery and native executable icons
- • Added VLESS profiles, TLS and REALITY settings, transport options, DNS and MTU controls
- • Improved desktop startup, reconnect behavior and portable release dependency checks
- • Migrated the public site while preserving compatibility with existing clients
Native Engineer
April 2025 - PresentWand
- • Authored and maintained 500+ mods across Unreal Engine and Unity titles
- • Built reverse engineering tools tailored to Unreal Engine games
- • Contributed to datamining efforts and the tooling behind them
- • Automated big parts of the proprietary SDK generation pipeline
- • Extended SDK support to Unity and RE Engine
- • Added Lua scripting and scriptable tools on top of the framework
- • Shipped a long stream of stability and performance fixes to the modding framework
- • Ran technical interviews for engineering candidates
Voice Chat Tunnel
October 2023 - August 2026Self-employed
A VPN engineered to isolate and optimize game voice-chat routing with zero impact on ping. Reached 15,000+ downloads via the Microsoft Store before continuing as Relay.
- • Designed the C++ client on top of OpenVPN and Shadowsocks, with an Edge WebView2 UI
- • Shipped on the Microsoft Store
- • Built the backend on Deno + DenoKV, with a Discord-linked subscription API and an admin bot
- • Stood up a self-hosted payment gateway on a Raspberry Pi 5 with a GSM module — no third-party processors
- • Ran the Linux fleet behind the service: deployment, monitoring, maintenance
- • Wrote private packet-analysis tooling to track down jitter sources
Verse Developer
June 2024 - July 2024Torabite
- • Built multiple Fortnite islands in Verse on UEFN
Anti-Cheat Lead Developer
April 2023 - January 2024Project Nova
- • Built and deployed "Presidio," a user-mode anti-cheat with anti-tamper and anti-RE layers — cheater presence dropped ~90 %
- • Contributed to server-side and kernel-level anti-cheat work
Writing
Long write-ups on reverse engineering, game security, and things I took apart to see how they work.
Projects
Selected work, older builds, and experiments that show the engineering trail behind the apps.
Fortnite.dev
A Fortnite private server that ran for 1.5M+ unique users before sunset.
Game Engine Modding Frameworks
Reverse engineered Unity and Unreal Engine to build community modding frameworks.
View on GitHub →Horizon Programming Language
Designed and implemented a custom programming language in C++.
View on GitHub →