System Engineer (Messaging and Unified Communications)

Tasks and Responsibilities:

• Implement, configure, administer, and troubleshoot Microsoft Exchange Server, Exchange Online, and hybrid Exchange environments, including recipients, databases, mail flow, transport rules, certificates, and message hygiene.

• Administer Microsoft 365 services related to messaging and collaboration, including tenant configuration, licensing, migrations, security settings, and service health.

• Implement and support Active Directory Domain Services, Microsoft Entra ID, Microsoft Entra Connect, Group Policy, authentication, and directory synchronization.

• Implement and support Skype for Business Server and Microsoft Teams, including meetings, federation, Enterprise Voice, Teams Phone, Direct Routing, dial plans, voice routing, auto attendants, and call queues.

• Install, configure, and maintain Yeastar IP-PBX solutions, SIP trunks, extensions, gateways, IVR, call queues, voicemail, and call recording.

• Integrate messaging, identity, and voice platforms to deliver reliable unified communications services.

• Plan and execute migrations and coexistence scenarios from legacy messaging and PBX platforms to Exchange Online, Microsoft Teams, and Yeastar.

• Apply messaging security and compliance controls, including anti-spam, anti-malware, encryption, retention, archiving, auditing, and role-based access.

• Perform health checks, upgrades, patching, backups, recovery testing, capacity reviews, and high-availability validation.

• Troubleshoot mail flow, directory synchronization, authentication, SIP connectivity, call routing, and voice-quality issues.

• Prepare implementation plans, technical designs, as-built documents, operational procedures, and customer handover materials.

• Coordinate with customers, vendors, and internal teams, while following change-management and escalation procedures.

Requirements

Job Specification: Technical Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, Communications Engineering, or a related field.

• Hands-on experience with supported versions of Microsoft Exchange Server, Exchange Online, and hybrid deployments.

• Practical experience with Microsoft 365 administration, mailbox migrations, tenant configuration, and licensing.

• Strong knowledge of Active Directory, Microsoft Entra ID, Microsoft Entra Connect, Group Policy, DNS, and certificate services.

• Experience with Skype for Business Server and Microsoft Teams, including Enterprise Voice, Teams Phone, and Direct Routing.

• Experience with Yeastar IP-PBX or comparable voice platforms, SIP trunking, gateways, IVR, queues, and call recording.

• Good knowledge of Windows Server and core infrastructure services.

• Working knowledge of PowerShell for Exchange, Microsoft 365, Teams, and identity administration.

• Solid understanding of TCP/IP, DNS, SMTP, SIP, TLS, QoS, VPNs, firewalls, load balancing, and troubleshooting methods.

• Understanding of messaging security, backup, disaster recovery, and high-availability concepts.

• Ability to work on customer sites, participate in planned after-hours activities, and handle support escalations when required.

Ø Certificates:

• Relevant Microsoft, messaging, identity, or unified communications certifications are preferred.

• Preferred certifications include:

• Microsoft 365 Certified: Teams Administrator Associate

• Microsoft Certified: Identity and Access Administrator Associate

• Microsoft Certified: Windows Server Hybrid Administrator Associate

• Yeastar certification or an equivalent VoIP certification

• ITI or NTI training is an advantage.

Language:

• Arabic: Native

• English: Excellent in both written and spoken.

Skills:

• Passionate about providing top-notch customer service and ensuring client satisfaction.

• Excellent communication skills with the ability to explain technical concepts clearly to non-technical users.

• Strong reporting and documentation skills.

• Highly organized, with the ability to manage time effectively in a fast-paced environment.

• Strong problem-solving abilities, particularly in troubleshooting and resolving system performance issues.

• Ability to balance multiple priorities and work well under pressure.

• Collaborative team player, capable of contributing to team success.

• Commitment to maintaining professionalism and adherence to company policies and procedures.