Experience

Brighterion, A Mastercard Company

• United States
• Software Development
• 1 - 100 Employee

• Senior Network Engineer

  • Oct 2018 - Present

  Designing, managing and monitoring the internal and external networks of Brighterion / Mastercard.Last performance review : Exceeded Expectations / in the 10% most valuable employees of Mastercard. Competences : Network security, systems administration on Windows, Linux, Sun Solaris.

• Network Security Engineer

  • Dec 2011 - Present

  I designed the PCI-DSS Level 1 certified infrastructure of Brighterion and I maintain it.



Chatterfly, Inc.

• Technology, Information and Internet

• Backend engineer, SF Bay Area

  • 2010 - Oct 2011

  I am responsible for refactoring the backend, doing the DAO layer implementation, optimizing the SQL requests and adding Memcache support, as well as writing tests for the next version of Chatterfly.com. I am responsible for refactoring the backend, doing the DAO layer implementation, optimizing the SQL requests and adding Memcache support, as well as writing tests for the next version of Chatterfly.com.



XSALTO

• France
• IT Services and IT Consulting
• 1 - 100 Employee

• Development of a scanning platform, and customer support, Grenoble, France

  • Jul 2010 - Oct 2010

  I developed a PHP platform to scan the Xsalto network, finding open applications and ports, storing the information in a MySQL database. The scanning was regularly repeated, the results were compared to the previous scan results to detect any discrepancy. This was in PHP, Javascript, Python, encapsulating Nmap. The Nmap XML results were parsed and put into MySQL. I migrated their webmail (Horde) from an old version, using Python scripts, and modified it to match their business needs. In addition, I did customer support work. This internship lasted 3 months (July, September, October 2011). In August I went back to Montreal for one month to work on the Hilton's wireless network, see next position) Show less



HyperReseau

• Internship, wireless network security, HyperReseau / Hilton Montreal, Canada

  • Aug 2010 - Aug 2010

  Managing the wireless network security of the Hilton Hotel in Montreal. The Hilton's conference room wireless network needed to be upgraded. I helped HyperReseau to install, test and secure the new network (Wireshark) After this, HyperReseau requested me to come in March 2011 to make sure that the network is operational and secure at all times during the ConfOO conference (http://confoo.ca/en). Managing the wireless network security of the Hilton Hotel in Montreal. The Hilton's conference room wireless network needed to be upgraded. I helped HyperReseau to install, test and secure the new network (Wireshark) After this, HyperReseau requested me to come in March 2011 to make sure that the network is operational and secure at all times during the ConfOO conference (http://confoo.ca/en).



AXA Assurances

• France
• Civic and Social Organizations

• Intern, development of a network monitoring system + Visa certification, Montreal, Canada

  • Jan 2010 - Jun 2010

  I developed in PHP/MySQL an application to scan the Axa Insurance internal network. I also worked as tech support to update the virus scanners and cleaned infected machines. I got praise for helping Axa in their Visa Certification process, making sure that the network was properly monitored at all times. I developed in PHP/MySQL an application to scan the Axa Insurance internal network. I also worked as tech support to update the virus scanners and cleaned infected machines. I got praise for helping Axa in their Visa Certification process, making sure that the network was properly monitored at all times.

• Intern, Development of the remote server administration platform

  • Jan 2009 - Oct 2009

  I developed in PHP / Perl / Javascript / MySQL / XML a secure Web interface to remotely administer, configure automatically and update the customer's and Xsalto's own servers. I used OpenVPN to secure the remote network connections. At Xsalto's request, I cannot share the details of this application. During this internship, I also detected, analyzed and cleaned a particularly complex Web site infection for one of Xsalto's customers. I developed in PHP / Perl / Javascript / MySQL / XML a secure Web interface to remotely administer, configure automatically and update the customer's and Xsalto's own servers. I used OpenVPN to secure the remote network connections. At Xsalto's request, I cannot share the details of this application. During this internship, I also detected, analyzed and cleaned a particularly complex Web site infection for one of Xsalto's customers.



Qitx

• Canada
• IT Services and IT Consulting
• 1 - 100 Employee

• Intern, Linux server administration

  • Nov 2008 - Jan 2009

  I administered Linux servers and configured firewalls, did security testing and developed a proof-of-concept exploit on Pidgin (C++, Linux kernel programming) I administered Linux servers and configured firewalls, did security testing and developed a proof-of-concept exploit on Pidgin (C++, Linux kernel programming)



City of Lausanne

• Intern, Computer Security Team

  • Apr 2008 - Jun 2008

  I administered a Linux test server on which I deployed and configured the SELinux extension. SELinux is a security framework developed by the NSA, which tightens the security of the Linux kernel. I hardened the Apache web server with the Mod_security2 module, a web application firewall. I wrote an article about it : http://www.remi.coursimault.com/publications/ArticleModSecurity2.pdf (in French) I did several presentations to explain and share my work with both the IT department personnel and the Town Hall service managers. The server I configured was used as a testbed for the Lausanne City critical networks (police, fire department, buses, drinking water command and control) Show less