VoIP Engineer

Key Responsibilities

• VoIP Architecture & Operations: Design, deploy, and maintain enterprise-grade VoIP systems (Genesys Cloud CX1 - BYOC Cloud/Edge, Asterisk, ZIWO, GSM gateways such as Dinstar/Yeastar/UC2000).
• Carrier Integration: Manage interconnections with regional telecom operators (Etisalat, du, STC, others), covering testing, deployment, and troubleshooting complex scenarios.
• Protocol Mastery: Deep SIP/RTP/SRTP work - advanced SIP header tuning (From, Contact, Diversion, P-Asserted-Identity), NAT traversal, SDP analysis, early media, re-INVITEs, and timeout handling.
• Advanced Troubleshooting: Act as L3 escalation point; analyze packet captures (Wireshark/tshark) to resolve one-way audio, packet loss, jitter, and media quality issues.
• Automation & Scripting: Develop utilities and scripts (Bash/Python) for monitoring, CDR exports, log handling, and process automation.
• High Availability & DR: Design clustering, trunk redundancy, and disaster recovery for voice infrastructure.
• Vendor & Regulator Interaction: Open and drive vendor support cases, negotiate with carriers, and work with regulators (TRA UAE, CITC KSA) to meet compliance requirements.
• Data Center Work: Perform safe physical interventions (installing, switching, replacing modules/servers) and plan preventive maintenance.
• Service Ownership: Participate in on-call rotations, taking ownership of VoIP services and providing critical support during incidents, including outside business hours if required.
• Documentation & Projects: Produce detailed technical documentation and manage multiple parallel projects with proper prioritization and reporting.

Skills, Knowledge & Expertise

• 3+ years managing large-scale VoIP infrastructures for enterprises or carriers.
• Deep knowledge of SIP/RTP/SRTP protocols, SIP timers, session refresh, topology hiding, and NAT traversal.
• VoIP-related Linux administration skills: system monitoring, tcpdump/pcap analysis, QoS, firewalls (iptables/nftables), and SIP DoS protection.
• Proven ability to troubleshoot using pcap dumps and SIP/media analysis.
• Solid understanding of regional telecom regulations and ability to align solutions with compliance.
• Strong experience writing and maintaining technical documentation and procedures.
• Familiarity with WebRTC Experience migrating large contact centers to cloud or hybrid deployments.
• Expertise with SBC Audiocodes: advanced routing, manipulation rules, HA clustering, TLS/SRTP termination, interworking.
• Genesys Cloud certification

A technical leader who can own and evolve VoIP services in Saudi Arabia. A problem solver with strong engineering intuition and risk awareness. A communicator skilled in negotiating with telecoms, vendors, and regulators. A team player who documents, mentors, and drives operational excellence.