Alex Zhilyakov
Contact: resume (at) azzie (dot) net
Objective
An engineering position in an organization seeking a highly qualified specialist in VoIP for large-scale IP Telephony projects, requiring strong technical skills, real-life experience, and ability to generate effective solutions.
Summary
- 6-year experience with VoIP engineering, over 10 years with IP networks
- Hands-on with VoIP and telecom equipment, standards and technologies
- Wide range of successfully deployed VoIP services and applications
- Strengths in implementation of complex projects paying attention to details
- Creative problem solver, high degree of initiative
- Analytical skills to examine data and provide the most efficient solution
Technical Expertise
| Signaling protocols: | SIP, H.323, MGCP, ISDN, SS7, R2 |
| Soft-Switches: | Nextone MSW, Cisco PGW |
| TDM switches: | Lucent LCS/Plexus, Harris |
| VoIP gateways: | Cisco AS-series, Quintum Tenor/CMS |
| SIP phones: | Cisco, Grandstream, Sipura, Snom, Asterisk |
| Voice applications: | Wholesale, ITSP, calling card, call shop, IVR, PBX, pre/post-paid billing |
| IP networking: | LAN/WAN connectivity, QoS, BGP, OSPF |
| Unix technologies: | Solaris, Linux, High-Availability, Sun Cluster, most Internet services, scripting |
Education and Training
- Master of Science in Applied Math and Software (1999)
(Ulyanovsk State University - former branch of Moscow State University) - Telica Plexus 9000 turn-up and operations (2003); Advanced routing (2004)
- NexTone Certified Engineer (NCE1) (2006)
- Sun Certified System Administrator (SCSA) (2006)
Employment History
Jan 2003 – Present: Network Manager, Callcentric, Inc., New York.
Responsible for maintaining VoIP network. Provision circuits, translations, dial-plan, routing tables on Nextone and Lucent soft-switches. Configure Cisco and Quintum SIP/H.323 gateways. Implement optimal call routing. Plan and deploy calling cards, call shops, billing solutions. Provide troubleshooting and L2 support. Manage Unix servers and services in a highly-available clustered environment.
Achieved significant reduction of operational costs by developing real-time quality and resource allocation controls and automating most provisioning tasks. Developed unique methods which allowed to raise the quality of call termination, establishing Callcentric as a top-quality provider for certain routes. Created new product offerings by integrating different VoIP hardware and software packages.
Feb 2001 – Dec 2002: System and Network Administrator, Beta Intl. Communications, New York.
Managed international VoIP network with Cisco gateways and gatekeepers, Harris TDM switch. Provisioned H.323, SS7, ISDN interconnections. Implemented centralized call authentication for Cisco and external call routing logic for Harris switch, allowing faster changes in call routing tables. Developed IVR applications and integrated them with the existing billing system. Managed Unix, Internet-related services. Maintained redundant IP connectivity with BGP and OSPF.
Jul 1999 – Nov 2000: Software Engineer, Billing Service Center, Ulyanovsk, Russia.
Maintained a state-wide network of account information and payment collection terminals. Provided redundant and secure connectivity of terminals to the central database utilizing all available technologies, protocols, and industry standards. Maintained corporate IP backbone. Researched, evaluated and purchased telecom equipment. Developed fault-tolerant network access devices based on FreeBSD Unix.
Oct 1997 – Jul 1999: Software Engineer, Telegraph-Telephone Station, Ulyanovsk, Russia.
Maintained operations of regional Internet provider. Designed network infrastructure, provisioned PPP, HDLC, Frame Relay connections, maintained IP routing with BGP/OSPF protocols. Deployed remote points of presence for dial-up and broadband internet access. Set up 3COM and BayNetworks network access servers, Cisco core routers. Configured Unix servers providing Radius, authentication/accounting, Web, DNS, Email, Internet News and Chat services. Performed security audits, provided solutions to prevent unauthorized use, and controled adherence to security policies. Trained junior staff.
Oct 1995 – Oct 1997: System operator, Telegraph-Telephone Station, Ulyanovsk, Russia.
Responsible for everyday operations of region-wide Internet service provider, equipment maintenance, technical support. Tuned various telecom equipment, modems, multiplexers, converters. Developed, installed and maintained new commercial Internet-related services under senior staff supervision. Maintained company's web site and file server.
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