System Administrator - Senior

We are seeking a highly experienced and motivated Senior System Administrator to join our IT team. This role involves managing and maintaining critical IT infrastructure, ensuring system availability, security, and performance. The ideal candidate will have a strong background in Windows and Linux system administration, networking, and security protocols., * Manage and maintain Windows and Linux servers, including installation, configuration, and troubleshooting.

• Oversee daily operations of network infrastructure, including routers, switches, firewalls, and VPNs.
• Implement and maintain backup and disaster recovery solutions to ensure business continuity.
• Monitor system performance and proactively address potential issues to minimize downtime.
• Manage user accounts, permissions, and access controls to ensure security compliance.
• Collaborate with software developers and other IT team members to support application deployment and integration.
• Stay current with emerging technologies and industry best practices to enhance system capabilities.
• Provide technical support and troubleshooting for end-users and internal teams.
• Document system configurations, procedures, and policies for knowledge transfer and compliance.

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent work experience.
• Minimum of 5 years of experience in system administration, with proficiency in Windows and Linux environments.
• Strong knowledge of networking concepts, TCP/IP, DNS, DHCP, and firewall configurations.
• Experience with virtualization technologies such as VMware, Hyper-V, or KVM.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
• Excellent problem-solving skills and the ability to work independently or as part of a team.
• Strong communication and interpersonal skills, with the ability to explain technical concepts to non-technical stakeholders.
• Certifications such as Microsoft Certified: Azure Administrator Associate, CompTIA A+, Network+, or Security+ are a plus.

Preferred Qualifications:

• Experience with automation tools such as PowerShell, Ansible, or Puppet.
• Knowledge of database management systems such as SQL Server, MySQL, or PostgreSQL.
• Understanding of cybersecurity principles and best practices.
• Experience with helpdesk support and end-user computing environments.

Clearance Requirements:

This position requires an active Secret clearance. The ability to obtain a Secret clearance may be required if you do not already possess one.