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Senior Systems Administrator

Arlington, VA

We seek a highly skilled and experienced Senior Systems Administrator to join our IT team. The ideal candidate will have at least seven years of experience in managing and supporting IT infrastructure, ensuring systems' reliability, security, and scalability across the organization. The Senior Systems Administrator will play a key role in maintaining the organization’s critical systems, leading infrastructure projects, and guiding other staff members.

Responsibilities

  • System Maintenance & Monitoring:
    • Manage and maintain the organization’s server infrastructure (Windows).
    • Monitor system performance and ensure high availability, scalability, and reliability.
    • Perform regular system health checks, updates, and patch management.
 
  • Cloud Infrastructure Management:
    • Manage cloud infrastructure (e.g., AWS, Azure) and ensure optimal performance.
    • Plan and implement cloud migration strategies as needed.
    • Optimize cloud resource usage and cost through effective monitoring and automation.
 
  • Virtualization & Storage Management:
    • Administer virtualization platforms (e.g., VMware, Hyper-V) and storage solutions (e.g., SAN, NAS).
    • Monitor and optimize resource utilization in virtualized environments.
    • Cloud Storage setup and management.
 
  • Backup & Disaster Recovery:
    • Develop, implement, and maintain backup and disaster recovery plans.
    • Ensure data integrity and business continuity by regularly testing recovery solutions.
 
  • Network Administration:
    • Manage and maintain network infrastructure (routers, switches, firewalls, VPNs).
    • Troubleshoot and resolve network-related issues.
    • Ensure network security and perform regular network monitoring.
 
  • Automation & Scripting:
    • Automate routine tasks using scripting languages (e.g., PowerShell, Bash, Python).
    • Develop and maintain infrastructure as code (IaC).
 
  • User & Helpdesk Support:
    • Provide Tier 1-3 support for escalated technical issues.
    • Mentor and guide other staff members with improving their computer skill and knowledge.
 
  • Project Management:
    • Lead IT infrastructure projects, including system upgrades, migrations, and deployments.
    • Work with cross-functional teams to identify and implement technology solutions that align with business needs.
 
  • Vendor Management:
    • Manage relationships with third-party vendors, ensuring service level agreements (SLAs) are met.
    • Evaluate and recommend hardware, software, and services for IT infrastructure needs.

Skills and Qualifications
  • Bachelor’s degree in computer science, Information Technology, or related field, or equivalent work experience.
  • Minimum 7 years of experience in systems administration and infrastructure management.
  • Certifications:
    • Relevant base certifications such as CompTIA Network+, Security+, Linux+
    • Microsoft Certified: Azure Administrator, AWS Certified SysOps Administrator
    • Networking: CCNP (Preferred), CCNA
    • Project management Professional: PMP
  • Technical Skills:
    • Operating Systems: Advanced proficiency in Windows Server and Linux. Cloud Services: Expertise in managing cloud platforms such as AWS and Azure. Azure, Azure AD, and Azure Apps.
    • Virtualization: Hands-on experience with VMware, Hyper-V, or other virtualization technologies.
    • Networking: Strong knowledge of TCP/IP, DNS, DHCP, VPNs, VLANs, and firewall management.
    • Security: Experience with firewalls, IDS/IPS, endpoint protection, and SIEM solutions.
    • Backup & Recovery: Proficiency in backup solutions (e.g., Veeam, Acronis) and disaster recovery planning.
    • Scripting: Proficiency in automation and scripting (e.g., PowerShell, Bash, Python).

 

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