Job summary
Senior Microsoft Infrastructure & Exchange Engineer at Ultimate Peaks in Riyadh responsible for the health and continuity of Exchange Server 2019 (on-premises and hybrid with Microsoft 365), Active Directory, email security, DNS/DHCP and related networking. The role ensures mailbox availability, secure mail flow, migrations, high-availability and incident escalation.
Key responsibilities
- Install, configure, upgrade and patch Exchange Server 2019 on-premises and maintain hybrid with Microsoft 365
- Plan and execute mailbox migrations with tested rollback and zero-data-loss cutovers
- Design, build and maintain DAGs for Exchange high availability and run failover tests
- Administer Active Directory, sites, trusts, OU design, replication health and AD DR runbooks
- Manage DNS/DHCP, mail flow, transport rules, connectors and certificate lifecycle
- Operate email-security gateway, tune anti-spam/anti-phishing and manage SPF/DKIM/DMARC
- Develop PowerShell automation, monitoring, backups, patching and infrastructure documentation
- Provide senior escalation for messaging, identity and email-security incidents and on-call support
Requirements
- Native Arabic and professional working English
- Bachelor's degree in CS/IT or equivalent experience with strong certifications
- 8+ years in enterprise Microsoft infrastructure; 5+ years hands-on with Exchange 2016/2019 and hybrid
- Proven experience with Exchange migrations and DAG deployments in multi-site environments
- Strong Active Directory, Group Policy, DNS and DHCP administration experience
- Experience with email security and SPF/DKIM/DMARC enforcement
- PowerShell scripting and automation for provisioning and runbooks
Skills
Microsoft ExchangeExchange HybridActive DirectoryGroup PolicyDNSDHCPPowerShellEmail security (SPF/DKIM/DMARC)NetworkingBackup & DR
Source: Workable. Last checked as open: 14 Nov 2026. You apply directly with the employer.
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