I have an extensive experience in Computer Networking, predominantly in Cisco gear. But i also have experience with Juniper, Mikrotik and Ubiquity.
Other Related fields are Linux (mainly RedHat/CentOS) but also Ubuntu. RedHat Enterprise Virtualization (RHEV and OVIRT) [equivalent to vmware vSphere]. Some exposure to vmware and windows.
I Also have experience in Domain, DNS Hosting, Web hosting, Google Apps setup, VoIP [Cisco, Asterisk, FreePBX], Amazon Web Services (AWS). AWS Covers EC2, VPC, Load Balancing, Route 53, S3 just to name a few.
Certification achieved so far are:
Cisco
CCENT : Cisco Certified Entry Networking Technician
CCNA R&S : Cisco Certified Network Associate Routing and Switching
CCNA Security : Cisco Certified Network Associate Security
CCNA Voice : Cisco Certified Network Associate Voice
CCNP R&S : Cisco Certified Network Professional Routing and Switching
Juniper
JNCIA-Junos : Juniper Networks Certified Internet Associate
JNCIS-SEC : Juniper Networks Certified Specialist, Security (JNCIS-SEC)
RedHat
RHCSA : Red Hat Certified System Administrator
RHCE : Red Hat Certified Engineer
I have been working in this industry since 2007