Hossein Kolahi is a senior network engineer and solution architect with over 10 years of experience in routing, switching, service provider technologies, and network automation. He has experience designing and deploying services like web, email, VPN, and VOIP solutions for ISPs, datacenters, government organizations, and internet providers. He is known for his technical skills, ability to document complex networks, communicate technical topics non-technically, and lead teams. His networking skills include technologies from Cisco, VMware, Windows server, Linux, firewalls, and monitoring tools.

1. Hossein Kolahi
E-mail:hkolahi.007@gmail.com
Senior network engineer and solution architect over 10 years of experience in routing and switching, Service
provider and Datacenter technologies. Dealing and fixing complex issues in large scale service provider, overlay
networks and network automation, small and medium companies, by configuring and deploying of popular
network services like: Web , proxy , Email Solutions( Exchange Server ) , Network monitoring , VPN PPTP/l2tp
and Open VPN , and VOIP Solutions .
-------------------------------------Have network experience in these areas and businesses---------------------------
ISP – Zero Main Downtime Datacenters – Customer service –Government organizations –Internet providers
------------------------------------ Known for exceptional competence in following areas------------------------------
Leadership: Consistently commanded by company executives, colleagues, and peers for strong work ethic and
ability to finish extremely complex jobs on schedule.
Technical: Successfully designs highly scalable secure and redundant vendors.
Documentation: Creates easy to follow step-by-step procedural documentation and easy read Visio diagram
for environment turnover to end user.
Communication: Using PowerPoint presentations and outstanding writing and communication skills efficiently
delivers complex technical subject matter to non-technical business area management.
-----------------------------------------------------Outstanding skills-------------------------------------------------
Exceptional technical-to-business communication skills. Strong analytical and problem solving skills utilizing
logical and systematic approach. Ability to work as a team member or individually. Proven team leadership skills.
Networking Skills & experiences:
 VMware vSphere ESX
 Windows Server 2K8, 2K12, 2K16 (AD, DNS, DHCP, Group Policy Management)
 LAN/WAN/Data Center Design Expert, Troubleshooter
 Project Management
 Workflow Planning
 IP Network/Security Design, Configuration
 Routing Protocols (RIP, IS-IS, OSPF, BGP)
 IPSEC, SSL, GRE, GRE over IPSEC & Dynamic VPN
 Wireless Network Designing, Installation & configuration

2.  Security Products: Fortigate, Kerio and Sophos firewall
 Monitoring Products: Solar Winds, PRTG and MRTG.
 QoS Skills: Policing, Shaping, Rate Limiting, Prioritizing, etc.
 Linux Skills: Squid, Bind, Apache.
--------------------------------------------------------------------Education------------------------------------------------------------------
Cisco CCNA-CCNP Certified kahkeshan Noor Educational institute
Computer Networks / Microsoft Infrastructure Is Iran institute / Bilge Adam institute (Istanbul)
Information System Management Is Iran institute
Microsoft System Engineer Bilge Adam institute (Istanbul)
VMware vSphere: Install, Configure, Manage v.5.0 (VCP) kahkeshan Noor Educational institute
LINUX LPIC 1 and 2 Shatel Academy
Cisco Networks Bilge Adam institute (Istanbul)
-----------------------------------------------------Areas of Expertise and Technical Skills----------------------------------------
Hardware: Software:
Cisco routers: 2800, 2900, 3900, 7600 Windows and Linux operating systems
Cisco Switches: 2960, 3560, 3750, VMware ESX 5.0 and Workstation
Cisco Firewalls: ASA 5500 Microsoft Server 2003, 2008, 2016
Cisco Unified Wireless WLC, LAP, WCS Microsoft and Linux DHCP, DNS
Packet Analyze: Wireshark, Snort Microsoft Exchange server
Monitoring:
Cisco Works LMS
Solar Winds
PRTG, Zabbix