Sr. System Administrator

KALSOFT

Muscat
Permanent
Full-time

Just now
Apply easily

KalSoft is looking for a highly skilled Sr. System Administrator to manage, maintain, and optimize secure and scalable IT infrastructure environments. The role requires strong expertise in Microsoft cloud technologies, enterprise systems administration, network management, and security best practices. The selected candidate will work closely with regional and global teams to ensure system stability, high availability, security compliance, and efficient infrastructure operations.Location: Oman (Onsite)
Experience: 5+ Years (Relevant Infrastructure & Cloud Security)
Employment Type: Contractual PositionKey Responsibilities

Perform daily, weekly, and monthly infrastructure health checks across Active Directory, Exchange, and SCCM environments.
Monitor and maintain Exchange DAG health, database replication, and mail flow.
Ensure Active Directory replication, DNS services, and domain controller health are functioning properly.
Monitor and maintain Windows Failover Cluster health and availability.
Monitor SCCM infrastructure, including:

Primary server health
Distribution Point status
SCCM SQL Server performance
Identify potential infrastructure issues proactively and take corrective actions before service impact occurs.
Perform troubleshooting and resolution for infrastructure-related incidents.
Assist the client IT team in resolving server, messaging, or system-related escalations.
Perform patch management coordination, updates, and maintenance activities for supported systems.
Maintain system documentation, operational procedures, and health reports.
Ensure backup, recovery readiness, and DR readiness for supported systems.
Provide technical recommendations for infrastructure improvements and optimization.
Work with client IT teams during incident response, maintenance windows, and upgrades.

Required Technical SkillsCore Technologies

Microsoft Active Directory Domain Services
Microsoft Exchange Server 2016 & 2019
Exchange Database Availability Group (DAG)
Windows Server Administration (2016 / 2019 / 2022)
Windows Failover Clustering
DNS, DHCP, and Group Policy Management

Endpoint & Systems Management

Microsoft SCCM / Microsoft Endpoint Configuration Manager
SCCM roles including Distribution Points
SCCM SQL Server administration basics

Monitoring & Troubleshooting

Infrastructure health monitoring
Performance tuning
Log analysis
Service troubleshooting

Soft SkillsStrong communication and stakeholder management skillsExcellent troubleshooting and problem-solving capabilitiesAbility to work in fast-paced enterprise environmentsStrong documentation and IT strategy planning skillsExperience Requirements

5+ years experience managing Microsoft enterprise infrastructure.
Strong hands-on experience with Exchange Server DAG environments.
Experience managing multi-site Active Directory environments.
Experience supporting SCCM infrastructure.
Experience with Windows Failover Clustering.
Experience working in production enterprise environments with high availability requirements.

KALSOFT