System Administrator
Posted Updated
Description
1. Active Directory (AD)
- Manage and
maintain Active Directory (AD) infrastructure, including creating and
managing users, groups, and organizational units (OUs).
- Configure
and enforce Group Policies (GPOs) to ensure security and compliance.
- Implement
and maintain AD roles, including DNS, DHCP, and Certificate Services.
- Monitor
replication and resolve AD synchronization issues between domain
controllers.
- Perform
periodic audits of AD permissions, accounts, and roles to ensure
compliance.
- Plan and
execute domain migrations or integrations during organizational changes.
2. Exchange Server
- Install,
configure, and manage Microsoft Exchange Server environments.
- Monitor
email flow, queues, and mailbox databases for performance and health.
- Configure
and manage email security policies, spam filters, and data loss prevention
(DLP).
- Perform
Exchange migrations, including on-premises to Office 365 or hybrid setups.
- Manage
email archiving, retention policies, and compliance requirements.
- Troubleshoot
issues related to mail delivery, access, or synchronization across
devices.
3. Virtualization
- Deploy
and manage virtualization platforms, such as VMware vSphere, Microsoft
Hyper-V, Nutanix AHV and OLVM.
- Monitor
and optimize the performance of virtual machines (VMs) and hosts.
- Create
and manage virtual networks, storage, and resource pools.
- Perform
VM backups and recoveries, ensuring business continuity.
- Implement
high-availability and disaster recovery solutions for virtualized
environments.
- Plan and
execute upgrades of hypervisors and virtual infrastructure.
4. Linux Administration
- Install,
configure, and maintain Linux servers (e.g., Oracle Linux, Ubuntu, Red
Hat).
- Manage
user accounts, permissions, and secure access using SSH or PAM.
- Monitor
Linux system performance.
- Configure
and manage Linux-based services, such as web servers (Apache), databases,
and DNS.
- Apply
patches, updates, and security hardening.
5. Backup Administration
- Configure
and manage enterprise backup solutions (Veeam).
- Develop
and maintain backup policies.
- Ensure
backups are tested regularly for recoverability and compliance with
RTO/RPO.
- Manage
tape backups, offsite storage, and replication to disaster recovery sites.
- Integrate
database-specific backup tools like Oracle RMAN.
- Monitor
backup jobs and troubleshoot failures or performance bottlenecks.
6. Storage Management
- Manage
and monitor SAN/NAS/VSAN storage systems and ensure optimal performance.
- Configure
RAID levels (e.g., RAID 1, RAID 5) for redundancy and performance.
- Allocate
and manage storage volumes and LUNs for server and application needs.
- Monitor
storage capacity and plan for future expansions.
- Implement
data deduplication, compression, and replication where applicable.
7. Monitoring
- Deploy
and manage monitoring tools, such as ManageEngine tools.
- Configure
alerts and notifications for critical system, network, or application
metrics.
- Monitor
CPU, memory, disk usage, and network performance for anomalies.
- Analyze
logs to identify trends, potential issues, or security breaches.
- Generate
and distribute reports on system health, performance, and capacity
planning.
- Automate
monitoring tasks using scripts.
Requirements
Qualifications and Skills:
1. Educational Qualifications:
- Bachelor’s
degree in Computer Science, Information Technology, or a related field.
2. Work Experience:
- At
least 3
years of hands-on experience in the field.
- Experience
in Microsoft based operating systems, Active Directory, DNS, DHCP,
Exchange Server, Enterprise Backup Soulitions and Linux Administrator.
3. Technical Skills:
- Problem-Solving
and Administration.
- Cloud
computing.
- Proficiency
in managing virtualization platforms (VMware, AHV, OLVM and micrsoft
hyper-v).
- Expertise
in Oracle Linux installation, configuration, and administration.
- Knowledge
of RAID configurations (RAID 1, RAID 5).
- Hands-on
experience with backup tools (Veeam, Oracle RMAN).
- Strong
understanding of networking concepts, protocols, and firewalls.
- Familiarity
with storage systems, including SAN, NAS,iSCSI and VSAN.
- Vendor
Management: Work with third-party vendors and ensure SLA compliance.
- RFP
Preparation: Draft RFPs, evaluate bids, and recommend solutions.
- Analysis:
Perform cost-benefit analysis and recommend improvements.
4. Certifications (Optional but Preferred):
- Red Hat
Certified System Administrator (RHCSA).
- Microsoft
Certified: MCSE.
5. Soft Skills:
- Strong
analytical and problem-solving abilities.
- Excellent
communication and documentation skills.
- Ability
to manage multiple tasks and priorities in a dynamic environment.
- Team-oriented
with a collaborative mindset.
- Bachelor’s
degree in Computer Science, Information Technology, or a related field.
