Mekdam Holding Group
Mekdam Holding GroupHolding Groups / Family Conglomerates

Senior Network and Voice Engineer (Unified Communications / VoIP)

Doha, QatarSenior Level
Full-TimeOn-Site
3 months ago

Required Skills

Adaptability & Flexibility

Job Details

  • Applicant location: within Qatar
  • Education: Bachelor's Degree
  • Visa Status: Qatar Company Visa (Without NOC)
  • Number of Hires: 1
  • Industry: Holding Groups / Family Conglomerates
  • Function: Information Technology (IT)

Job Description

Role Summary

Responsible for designing, implementing, and maintaining the organization's voice communication infrastructure — including VoIP systems, IP telephony, call routing, and integration with the broader network (routing, switching, and security layers).

Key Responsibilities

  • Design, configure, and maintain VoIP/UC platforms (Cisco Call Manager/CUCM, Avaya, Microsoft Teams Voice, Asterisk, etc.), UCCX scripting and managing the UCCX flow, Voice system integration with Fire Alaram
  • Configure and troubleshoot SIP trunks, gateways, and PSTN interconnects
  • Manage voice gateways, session border controllers (SBCs), and voicemail systems
  • Implement and maintain QoS policies for voice traffic across the LAN/WAN
  • Configure routing and switching infrastructure supporting voice VLANs (Cisco IOS/NX-OS, switches, routers)
  • Ensure voice network security — call encryption (SRTP/TLS), firewall rules for SIP/RTP, VLAN segmentation, and prevention of toll fraud
  • Perform troubleshooting for call quality issues (jitter, latency, packet loss)
  • Coordinate with carriers/ISPs for SIP trucking and E1/PRI circuits
  • Maintain documentation: network diagrams, dial plans, IP addressing schemes
  • Support disaster recovery and redundancy planning for voice systems
  • Conduct capacity planning and system upgrades/patching
  • Coordinating with Presales for the complete solution design

Required Skills

  • Strong understanding of VoIP protocols: SIP, , RTP/SRTP, MGCP
  • Hands-on experience with routing and switching (OSPF, EIGRP, VLANs, STP, EtherChannel)
  • Firewall and security fundamentals (ACLs, NAT, VPN, SBC configuration)
  • Experience with Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Voice Gateways, or equivalent UC platforms, UCCX
  • QoS design and implementation for converged networks

Certifications Required / Preferred

Core Voice / Collaboration

  • CCNA Collaboration or CCNP Collaboration (Cisco) industry standard for voice engineers or equivalent
  • Avaya Certified Support/Implementation Specialist (if working on Avaya platforms)

Routing & Switching

  • CCNA (Routing & Switching) Foundational Requirement
  • CCNP Enterprise (Cisco) preferred for senior roles, covers advanced routing/switching

Experience Level

  • 3–6 years in network/voice engineering typically expected for mid-level; 7+ years with CCNP-level certifications for senior roles.

Employment Benefits

Annual Flight Ticket
Housing Allowance
Transportation Allowance
Paid Sick Leave
Mobile Allowance