Senior VOIP Engineer L3

Posted Date about 1 year ago
Location Saudi Arabia
Discipline Information Technology
Job Reference 31250
Salary 0.0
Senior VoIP Engineer L3 - Managed Services
Location: Riyadh, KSA
Role Type: Permanent

The proposed position will be for a member of a managed services technical team, which is responsible for VoIP, functions and services related issues (operations, 2nd and 3rd level support). The engineer will be working in a group of IT experts locally and within multiple projects to cover the required services functionalities and availability.

Roles and Responsibilities
  • This position will require travelling. When not on site, Engineers will be assisting in the development of project plans, designs and documentation for existing and new scopes.
  • Plan, deploy, configure, troubleshoot collaboration solutions from the beginning to implementation by collaborating with vendors e.g. Cisco
  • Establish a working Cisco UC Manager 10.x VOIP system while keeping in mind client requirements
  • Plan, install, configure, examine and maintain Cisco Call Manager products
  • Provide on-call operational level support for all facets of Cisco VOIP hardware and software
  • Deliver proof of concepts for emerging technologies
  • Assist in capacity planning of VOIP equipment and networks
  • Provide VOIP architecture and infrastructure designs for data centers and site deployments
  • Open TAC cases to rectify user, VOIP or collaboration infrastructure problems
  • Write HLD/LLD for new scopes or tenders
  • Have extensive knowledge of routing protocols (Static, OSPF, and BGP)
  • Design and deploy changes to the configurations of clients as per the applicable change management process.
  • Recommend and develop best practices for new locations
  • Expertise in developing IPT/ VOIP applications
  • Provide support services for SIP Signalling

Role Knowledge Requirements
  • Proven track record working with leading unified collaboration systems like Cisco, Avaya
  • Experience with Cisco different collaboration products
    • Cisco Unified Computing Systems (UCS)
    • Cisco Analog Voice Gateways
    • Cisco Voice Routers
    • Cisco Unified Communications Managers
    • Cisco Unity Cisco Emergency Responder
    • Cisco Expressway
    • Cisco Unified Border Element (CUBE)
    • Webex
    • Cisco Prime Collaboration.
  • Experience evaluating, designing, implementing, and managing collaboration infrastructure
  • Working knowledge of Secure Real-Time Transport Protocol (SRTP) including associated G.711 and G.729 codecs and Digital Tone Multi Frequency (DTMF)
  • Knowledge of third party/open source SIP stacks
  • Familiarity with IPSec implementation and troubleshooting
  • Hands-on experience with Session Border Controllers and Voice Gateways
  • Extensive hands-on experience with dial plans, IVRs, SIP, IAX, RTP, SRTP including TLS, DIDs, codecs and other protocols
  • Solid understanding of traditional telephony, PRIs, BRIs, FXO/FXS, circuit-switching, POTS, PSTN, MTSO
  • Very good knowledge of protocol and packet analysis
  • Solid understanding of OSI model, firewalls, IP routing, IP switching, VLANS, and QOS/COS
  • Hands-on experience with network monitoring, network diagnostics, and network analytics tools
  • Experienced in virtualization platforms VMWare and Hyper-V
  • Strong understanding of NAT traversal for VOIP
  • Strong understanding of H.323, MGCP & ISDN
  • Connectivity using copper/fiber
  • Implement QOS in VOIP networks
  • Effective communication and strong analytical skills
  • Knowledge of Linux environments e.g. Ubuntu, CentOS and shell/Perl scripting

Required Experience and Certification
  • Minimum experience of 8 years in VOIP domain is mandatory
  • CCNP Collaboration is Must
  • CCIE Collaboration is preferred