HomeReseller BenefitsReseller ToolsReseller SolutionsInternational RatesProductsHelpReseller LoginLearn More
Clique aqui para visitor nosso site em Português Contact Us Español
World Leader in Turn-Key VoIP Solutions VarPhonex helps you start your own VoIP Business for just $199
About Us

Why Choose VarPhonex?
VarPhonex Reseller Program
How VarPhonex Works
Top Ten Reasons
The Opportunity
Questions Before You Join
How VoIP Works
RAP Demo
Variable Rate Tool
Reseller Testimonials
Frequently Asked Questions
Free Basic Membership and Softphone
Data Center
Contact Us


Learn More

Careers with VarPhonex

Senior VoIP Systems Engineer

Job Description and Requirements

Plan, design, build, test, debug, implement, maintain custom VoIP based infrastructure. Responsibility of building and leading a team of engineers/programmers that will grow with the company.


  • Through understanding of SIPv2 protocol and related network components (Proxy, SBC, Softswitch, etc.)
  • Through understanding of IP based network systems and protocols
  • Understanding of NAT, PAT, Firewall issues as they relate to VoIP
  • Ability to trace and troubleshoot VoIP sessions at the packet level
  • Working knowledge of C, Perl, PHP
  • Experience with Asterisk and Sip Express Router (SER) at the source code level
  • Experience with Cisco IOS Voice routers (Dial-Peer, H.323, ISDN, etc.)
  • Experience in interfacing with call routing / rating / billing systems
  • Understanding of Linux based operating systems
  • Experience with RDBMS (MySQL a plus)
  • Experience with high availability clustering and load balancing
  • Required Bachelor Degree in computer science or related field


   Copyright VarPhonex.com WebPhone  |  SIP Termination  |  SIP Trunking  |  Join Now  |  Learn More  |  Site Map
Custom Solutions  |  Blog   |   Careers   |  About VarPhonex   |  News  |  e911  |  Legal

VarPhonex offers the industry leading VoIP Reseller Program.  We let you sell VoIP in your brand name including Internet phone service, SIP termination, SIP Trunking, International DID numbers and unlimited VoIP plans.  We also offer prepaid phone service using our voice over IP system and an analog telephone adapter, softphone, PBX, Asterisk, Trixbox or other VoIP device which can use a SIP Trunk.  VarPhonex white label VoIP solutions are designed so you can private label our home phone service, business phone service, call shops service and phone service for cyber cafes.  VarPhonex is proud to support Internet telephony equipment including Sipura, Linksys, Cisco, Digium, Grandstream and more.  We offer low cost A to Z rates and provide International VoIP termination along with DID phone numbers for private label resale.
Partner Solutions | About Us | Custom Shopping Cart | Support | Reseller Login | Request Pricing | IP Phones and Devices
Free Phone
| Internet Telephony Devices | Calling Plans | Web Phone | Pay as you go calling | VoIP Phone Card | RingByName