Routers, Firewalls & Security (41666)

Programming & Development

Routers, Firewalls & Security

$5/hr Starting at $25

I have over 8 years of experience in supporting and designing complex heterogeneous networks consisting of Windows/ Linux servers and workstations, peripherals and gateways. For last 5 years, I have worked for nation-wide VOIP provider on research and development of various IP solutions that included:Asterisk-based systems (AsteriskNOW, Trixbox, FreePBX, Vicidial, Elastix) administration/custom application developmentother IP-PBXs: Broadsoft, 3CX, PBXnSIP, BrekekeDesign central provisioning system for various endpoints (Polycom,Cisco, Aastra,Linksys)Design of a calling card systemIntegrated a SQL 2005 billing systemDevelop support, deployment, disaster recovery documentation.Providing upgrades/maintenance/backup to a server farm consisting of:Windows 2003 serverLinux RedHatCentOSThroughout my career, I have proven to be dependable and knowledgeable technical analyst. I believe that my expertise in VOIP, network security and server high availability would greatly benefit to your project

About

$5/hr Ongoing

Download Resume

I have over 8 years of experience in supporting and designing complex heterogeneous networks consisting of Windows/ Linux servers and workstations, peripherals and gateways. For last 5 years, I have worked for nation-wide VOIP provider on research and development of various IP solutions that included:Asterisk-based systems (AsteriskNOW, Trixbox, FreePBX, Vicidial, Elastix) administration/custom application developmentother IP-PBXs: Broadsoft, 3CX, PBXnSIP, BrekekeDesign central provisioning system for various endpoints (Polycom,Cisco, Aastra,Linksys)Design of a calling card systemIntegrated a SQL 2005 billing systemDevelop support, deployment, disaster recovery documentation.Providing upgrades/maintenance/backup to a server farm consisting of:Windows 2003 serverLinux RedHatCentOSThroughout my career, I have proven to be dependable and knowledgeable technical analyst. I believe that my expertise in VOIP, network security and server high availability would greatly benefit to your project

Skills & Expertise

Application DevelopmentAsteriskBashBillingCentOSCiscoClusteringDesignDisaster RecoveryElastixFreepbxiptablesLinuxMsNetwork SecurityNetworkingPBXPerlProgrammingRed HatResearchSCO UnixSecurityServer AdministrationSQLtrixboxUnixVICIdialVistaVoIPVpnWindowsWindows 2000Windows DesktopWindows VistaWindows XPWireless

4 Reviews

dogsandcats says,

Alex was great. Worked hard to make sure we were satisfied and did not give up, despite facing some challenges with the original spec on the project. He was also very helpful in explaining workarounds and what he was doing. Will use him again.

for Small office Asterisk Setup on Sep 10, 2013
Mark_Johnson1 says,

Alex is quick, responsive, knowledgeable, and someone who doesn't hesitate when it comes to getting the job done. Although this was a small project, he still treated it as though it was an important one. I look forward to working with him in the future, and I highly recommend him for your projects as well.

for Voice Broadcasting Software Linux Asteri on Jul 26, 2011
Diversified LLC says,

Knows his stuff. Give him a try!

for Tune-up Asterisk PBX on Jan 22, 2011
Diversified LLC says,

I will use Alex the next time I need any Asterisk help!

for Tune-up Asterisk PBX on Jan 14, 2011

GTA Network Consulting