Senior Systems Administrator

Job Summary

The Senior Systems Administrator is responsible for designing, implementing, managing, and optimizing the organizations IT infrastructure. This role ensures high availability, security, and performance of servers, networks, and core systems while providing advanced technical support and mentoring junior team members.

What will you do?

Systems & Infrastructure Management

• Manage, monitor, and maintain on-premises and cloud-based server environments (Windows/Linux).
• Ensure system availability, performance, scalability, and reliability across all IT platforms.
• Plan and execute system upgrades, patches, and migrations with minimal service disruption.
• Implement and manage backup, disaster recovery, and business continuity solutions.

Security & Compliance

• Enforce security standards, access controls, and system hardening practices.
• Monitor systems for security threats, vulnerabilities, and compliance gaps.
• Support audits and ensure adherence to IT policies, security standards, and regulatory requirements.

Incident, Problem & Change Management

• Act as a senior escalation point for complex system incidents and outages.
• Perform root cause analysis and implement preventive measures to avoid recurrence.
• Review, approve, and execute system changes in line with change management processes.

Cloud & Virtualization

• Manage virtualization platforms (VMware, Hyper-V) and cloud environments (AWS, Azure, or GCP).
• Optimize system performance, capacity, and cost in virtual and cloud infrastructures.

Automation & Optimization

• Develop scripts and automation tools to improve operational efficiency and reduce manual effort.
• Continuously improve system performance through proactive monitoring and tuning.

Documentation & Knowledge Sharing

• Maintain accurate documentation for system configurations, procedures, and architecture.
• Provide technical guidance, mentoring, and knowledge transfer to junior system administrators.

Stakeholder & Vendor Management

• Collaborate with internal teams (IT, Security, Operations, Business Units) to support business requirements.
• Coordinate with vendors and service providers to ensure SLA compliance and service quality.

Qualifications & Skills

Education & Experience

• Bachelors degree in Computer Science, Information Technology, or related field.
• 5–8+ years of experience in systems administration or IT infrastructure roles.

Technical Skills

• Strong experience with Windows Server and/or Linux environments.
• Hands-on experience with virtualization (VMware, Hyper-V).
• Knowledge of cloud platforms (Azure, AWS, GCP).
• Experience with Active Directory, DNS, DHCP, Group Policy.
• Familiarity with monitoring tools, backup solutions, and scripting (PowerShell, Bash, Python).
• Understanding of ITIL processes, security frameworks, and best practices.

Preferred Certifications (Optional)

• Microsoft (Azure Administrator / MCSA / MCSE)

• Vmware (Vcp)

• AWS Certified SysOps Administrator

• Itil Foundation

Soft Skills

• Strong problem-solving and analytical skills.
• Ability to work under pressure and manage critical incidents.
• Excellent communication and stakeholder management skills.
• Leadership and mentoring capabilities.