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Syed Rehan
@rehandewan
Low Level Systems and Performance Engineer
Pakistan
Urdu, English
About me
Low-level systems and performance engineer specializing in C/C++. I work at the hardware boundary — cycles, cache lines, and syscalls — to debug, harden, and accelerate production code.
Services: memory-safety debugging (Valgrind/ASan), legacy C modernization to C17, high-throughput network servers (epoll/TLS), and cryptographic inventory audits for post-quantum readiness (CNSA 2.0, NIST FIPS 203/204/205).
Every deliverable ships with proof — sanitizer logs, load-test results, or a reproducible benchmark — not promises. Message me your problem; I reply with a scoped plan within hours.
Skills
Syed Rehan
Offline •
Average response time: 4 hours
See my services
Help/Consultation
I will find quantum vulnerable cryptography in your c and cpp code
Bug Fixes
I will review your c code, fix bugs, memory leak and optimize performance
