יהלי אחזקות

Linux kernel and user space , security, and networking

נתניה, ישראל

פרילנסר

077-4446881

צור קשר

אודותינו

senior Linux Kernel developer C/C++ networking and reversing at Trapx
Experience

Currently I am dealing with Cyber security world I am in a position of senior C/C++ developer handling Linux Low level internals as Kernel developer in the Networking low levels area.
concentrating in network protocols (low level layers L2,L3,L4 ...) reversing.
The art of scanner deception !

Before ..

senior C/C++ developer at Sqream technologies
I was dealing with Big Data area using C/C++11 and (CUDA Kernels) on Linux OP and Linux Kernels modules, I handled both in user space and kernel space. as part of my duties I was a
scrum master .

before ...

C/C++ Developer in Networking (TIC Transparent Internet Caching) system. this was developed for ISP use, on platform Open SUSE. Multithreaded system dealing with Networking internals L2, L3
supporting protocols such as: TCP/UDP over IPV4 and IPV6 over LWIP stack, UTP, torrent, uTorrent, HTTP, P2P.

Goals

To expose myself to new technologies, in any kind of area, specially focusing on
Knowledge of security or any kind of Core/Kernel/Networking programming
Based on operating systems like Linux/Unix

Specialities:
- Android Kernel
- Linux Kernel development,
- C/C++ 11 , ANSII, STL, Multi threading,
Linux user space internals, Design Patterns in C++, Object Oriented
- Networking internals L2,L3 ...
- net filter q, nmap , nexpos , nessus, network kernel hooking
- network scanning for OS fingerprints
- Network protocol reversing
- Linux Kernel and Kernel module programming
- Linux hardening OS Kernel , system call table hooking, and network traffic monitoring.
- SQL
- Very fast learner
Computer Software

שפות

עברית

שפת אם

אנגלית

שליטה טובה

תחומי התמחות

טכנולוגיה

UNIX, Linux

Linux kernel developer and user space c / c++ Assembly x86
Networking protocols on layers l3 l4, security, reversing, and general kernel and user space development

Cyber Security סייבר

C/C++ assembly x86 developer
1. Hardening Linux kernel
2. Deception systems honeypot

תכנות ופיתוח תוכנה

C, C++

C - Linux kernel space developer specialized in both security in the kernel, from the barrier of system call down to vas and, internal communication with users space for data transmission between kernel pace and users space. In addition to that have some expiriacce in the TCP/IP stack in Linux kernel, I used to work with net filter queue, sub and so on.

C++ - Linux user space application internals and infrastructures, around the are of security and networking. I am familiar with ansi, 11 and 14 versions

מתכנת, פיתוח תוכנה כללי

פיתוח אפליקציות ל- Android

C/c++ developer over android aosp and android kernel, custom ROM.
I have developed a full system which contains an Agent coddled in Cplusplus in user space which communicates to a driver in kernel space to monitor the activity of cellular android device.

אפיון מפרט טכני

Device Driver Development

פיתוח אפליקציות לנייד

Assembly

Assembly at&t x86 for Linux kernel, small function to preform simple and fast actions.