Marek Majkowski

Current

Senior Developer at LShift

Past

R&D Specialist at Grono.net
Linux Administrator/Programmer at Theta, Bank of royalty free photos
Google summer of code participant at Google Summer of Code/ Worked on Nmap project

Linux Administrator at Ornak, Internet Systems Engineering

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Education

Polsko-Japonska Wyzsza Szkola Technik Komputerowych, Warsaw
Polsko-Japonska Wyzsza Szkola Technik Komputerowych, Warsaw

Recommended

5 people have recommended Marek

Connections

98 connections

Industry

Computer & Network Security

Websites

Marek Majkowski’s Summary

• Asynchronous concurrent programming
• Web systems scalability and performance optimization
• Author of a COMET framework
• Low level networking and protocols
• Computer security
• Open source contributor (nmap, haproxy)

Marek Majkowski’s Specialties:

C, Python, Php, Security, Django, Nmap, Lighttpd, Sphinxsearch, Robotics, COMET, Web scalability, Haproxy

Marek Majkowski’s Experience

Senior Developer

LShift

(Privately Held; 11-50 employees; Computer Software industry)

October 2008 — Present (10 months)
R&D Specialist

Grono.net

(Privately Held; 11-50 employees; Information Technology and Services industry)

April 2007 — February 2008 (11 months)

Working on new technologies and scalability on biggest Polish social networking site.

Developed and implemented advanced management system for servers.

Introduced fast algorithm for searching shortest paths in social network graph. It reduced path finding time from seconds to few milliseconds.

Working on optimizing web servers and page loading time.
Implemented full text search for various resources.
Linux Administrator/Programmer

Theta, Bank of royalty free photos

(Privately Held; 1-10 employees; Information Technology and Services industry)

February 2006 — April 2007 (1 year 3 months)

- Administration of disk arrays of total capacity 8TB using revolutionary ZFS filesystem.
- Programming in C, Python
- Network administration
- Created search engine that greatly reduced search times (~2k lines of C code)
- Created invoicing system based on Django framework with Genshi and Mako templates
Google summer of code participant

Google Summer of Code/ Worked on Nmap project

(Public Company; GOOG; Information Technology and Services industry)

June 2006 — September 2006 (4 months)

Added support for sending packets with custom IP options
Created general scanning engine, capable of scanning targets through chained proxies
Increased performance of NMap.
Implemented Pcap in nmap scanning engine.
Implemented scripts to nmap:
- open-relay ftp server check
- promiscouous node scan
- p0f-like information for every opened port
Linux Administrator

Ornak, Internet Systems Engineering

(Privately Held; 1-10 employees; Information Technology and Services industry)

September 2004 — June 2005 (10 months)

Administration and configuration of Linux based routers with advanced routing and QoS configuration.
Network security consulting

Marek Majkowski’s Education

Polsko-Japonska Wyzsza Szkola Technik Komputerowych, Warsaw

Master of Science , Computer Science , 2006 — 2008
Polsko-Japonska Wyzsza Szkola Technik Komputerowych, Warsaw

Bachelor of Engineering , Computer Science , 2003 — 2006