Senior Systems Engineer - Unified Communications

About the role

QatarEnergy is looking for an experienced Senior Systems Engineer, Unified Communications, to design, implement, operate and improve secure, resilient and scalable enterprise voice, video and collaboration services. The role covers hybrid and cloud UC environments, with a focus on availability, performance, security and lifecycle compliance with business requirements, ICT standards and approved KPIs.

Key responsibilities

• Provide senior technical expertise across hybrid and cloud UC environments, including architecture and documentation, end-to-end voice design and troubleshooting, lifecycle and security management, automation and migrations.
• Handle major incidents, disaster recovery and carrier/vendor coordination, and coach engineers.
• Evaluate and integrate cloud UC, contact-centre, smart meeting-room, analytics and AI-enabled capabilities under security, privacy, data-governance and responsible-AI controls.
• Lead UC migrations and Severity 1 incident recovery, including post-incident root-cause and corrective-action reporting.
• Review vendor solutions, coordinate carriers, mentor engineers and support BOQs, lifecycle budgets and investment decisions.

Required profile

• At least 10 years of progressive enterprise UC experience, including seven years of hands-on design, implementation, operation and troubleshooting of complex, high-availability environments.
• Experience in business-critical industrial environments, especially oil and gas, is preferred.
• Bachelor's degree in Network Engineering, Computer Engineering, Computer Science, Electrical/Electronic Engineering or an equivalent discipline.
• Current professional-level certification in enterprise collaboration (e.g. Cisco CCNP Collaboration or a recognised Microsoft Teams, SBC or cloud communications certification) is preferred.

Required skills

• Expertise in SIP, SBCs and end-to-end enterprise voice troubleshooting, with deep knowledge of at least one major UC platform.
• Hands-on Microsoft Teams enterprise voice (Direct Routing, dial plans, calling policies, auto attendants, call queues, Call Analytics, Call Quality Dashboard).
• Hands-on Cisco UC (CUCM, CUBE, voice gateways, dial plans); UCCX or cloud contact centre experience desirable.
• SIP/SDP/RTP call flows and packet-level troubleshooting with Wireshark.
• Microsoft 365, Entra ID, PowerShell scripting, Microsoft Graph API, REST APIs and Power Automate.
• UC security (TLS/SRTP, SBC hardening, Zero Trust) and real-time media quality assurance.
• Knowledge of UCaaS, smart meeting rooms, Operator Connect, emergency calling and AI-enabled UC features.