System Administrator

We are seeking a System Administrator Networking with strong expertise in enterprise switching (Aruba), firewalls (Sophos and Palo Alto), and server administration. The candidate will be responsible for ensuring reliable, secure, and high-performance IT operations across our offices, data center, and mission control center.
Key Responsibilities
Network Infrastructure (Aruba CX)

• Administer, configure, and maintain Aruba CX switches (L2/L3).
  

• Design VLANs, routing, VSF stacking, and ACLs.
  

• Implement high availability and load balancing.
  

• Monitor switch performance and troubleshoot LAN/WAN issues.
  Firewall & Security (Sophos & Palo Alto)
  

  • Configure and maintain firewall rules and VPNs (site-to-site, SSL).
    

  • Monitor intrusion prevention, threat protection, and web filtering.
    

  • Audit firewall logs and implement IT security policies.
    

  • Support firewall management for both Sophos XGS and Palo Alto devices.
    Server & Data Center Management
    

    • Manage Linux servers; perform patching, log monitoring, and backups.
      

    • Ensure network segmentation and isolation.
      Endpoint & Workspace Administration
      

      • Manage Windows 10/11 Pro endpoints; enforce IT asset compliance.
        

      • Administer Google Workspace / O365 (users, groups, security settings).
        

      • Manage Windows and MAC systems.
        Monitoring, Documentation & Support
        

        • Implement monitoring for network, servers, and endpoints.
          

        • Maintain IT documentation (network diagrams, configurations, inventory).
          

        • Provide technical support for networking/system issues.
          

          
          Requirements

        • Bachelordegree in Computer Science, IT, or related field.
          

        • 12 years of experience as a System/Network Administrator.
          

        • Hands-on experience with Aruba switches and knowledge of L2/L3 switching, routing protocols, ACLs, and VSF.
          

        • Experience with Sophos XGS and Palo Alto firewall management.
          

        • Solid Linux server administration skills.
          

        • Knowledge of IT security frameworks and best practices.
          

        • Familiarity with Google Workspace administration.
          

          Preferred / Good to Have:
          

          • CCNA / CCNP certification.
            

          • Experience in data center operations and monitoring tools.
            

          • Exposure to mission-critical IT environments.
            

            
            Benefits

          • Competitive salary and performance-based incentives.
            

          • Opportunity to work in a mission-critical IT environment.
            

          • Exposure to advanced networking and security technologies.
            

          • Learning and professional development opportunities.
            

          • Friendly and collaborative work culture.