Services & Work

Engineering Services & Work

Three focused areas of expertise backed by verifiable deliverables: discovering vulnerabilities with AFL++ and custom fuzzers, writing high-speed C / C++ / Assembly software, and shipping production mobile apps.

Core Service

Vulnerability Discovery & Advanced Fuzzing

Deep security auditing and automated vulnerability discovery in C/C++ libraries and system binaries using advanced fuzzing frameworks like AFL++ alongside custom-engineered fuzzing tools.

What I Deliver:

  • Coverage-guided fuzzing campaigns with AFL++, LibFuzzer, and custom mutators
  • Custom fuzzing harnesses & proprietary crash-triaging tools built from scratch
  • Memory corruption analysis (Buffer Overflows, Use-After-Free, IPC desync)
  • Source code auditing, reverse engineering (GDB, Radare2), and responsible disclosure
Featured Work & Official Proof:
Samba Vulnerability Acknowledgment (GitLab MR !4239) Upstream Fix ↗ Zero-Breach Vulnerability Credit (@okba14 — GitHub PR #8) Credited @okba14 ↗
AFL++Custom FuzzersASan / UBSanGDB / Radare2CVE / Advisory Research
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Core Service

Low-Level Programming (C / C++ / Assembly)

Engineering ultra-fast, lightweight, and memory-safe software directly at the machine level in C, C++, and Assembly—free from bloated abstractions.

What I Deliver:

  • High-performance native engines, system daemons, and CLI utilities in C/C++
  • x86-64 & ARM64 Assembly optimization and SIMD vectorization (AVX2 / SSE)
  • Linux & POSIX systems programming (sockets, mmap, epoll, io_uring)
  • Native C/C++ addons and bridges for high-level runtimes (Node-API / FFI)
Featured Work & Official Proof:
Explore Open-Source C & Assembly Projects on GitHub (@okba14) GitHub ↗
C99 / C11C++20x86-64 / ARM ASMLinux / POSIXSIMD
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Core Service

High-Performance Mobile App Development

Designing and building fast, clean, and reliable mobile applications with a low-level engineer’s mindset: minimal memory footprint, instant startup, and smooth user experience.

What I Deliver:

  • Full-cycle Android application development from architecture to Google Play release
  • High-speed document rendering, PDF processing, and offline-first utilities
  • Lightweight, responsive UI design focused on simplicity and user clarity
  • Strict privacy, local data security, and crash-free native stability
Featured Work & Official Proof:
Published App: El Kantara PDF Reader on Google Play Store Google Play ↗
Android DevelopmentGoogle Play ProductionNative PerformanceClean UI/UX
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Featured Application Showcase

El Kantara PDF Reader — Published on Google Play

Named after my home region of El Kantara, this application is a practical example of my mobile engineering work: a fast, lightweight, and clean Android PDF reader built for effortless document viewing without bloat.

View & Download on Google Play Request a Custom App or C/C++ Engine
El Kantara Emblem
PACKAGE ID com.elkantara.pdfreader
PLATFORM Android (Google Play Store)
ENGINEERING FOCUS Fast Rendering • Low Memory • Simple UX