Network Systems Administrator

EVONA; Arlington (VA); On-site; USD 80,000 - 110,000; Full time

Job summary

A growing technology organization in Arlington, Virginia is seeking a Senior Systems Administrator to manage and scale its internal IT and network infrastructure. This hands-on role involves administering Microsoft 365, maintaining hardware, and ensuring efficient operations across the business. Ideal candidates will have proven systems administration experience, strong troubleshooting skills, and relevant certifications including CCNA or RHCE. Join a dynamic team focused on reliable and secure technology operations.

Qualifications

• Proven experience as a Systems Administrator, Network Administrator, or IT Support Specialist.
• Solid understanding of networking, VPNs, firewalls, and virtualization.
• Experience with device imaging and deployment.

Responsibilities

• Administer Microsoft 365 including user accounts and security configurations.
• Provision, image, deploy, and maintain laptops and hardware.
• Build and maintain corporate networks and cloud services.

Skills

Troubleshooting and problem-solving skills

Clear communication skills

Service-focused mindset

Understanding of networking

Knowledge of VPNs and firewalls

Education

CCNA or RHCE certification

IAT II compliant certification

Security+, Microsoft, AWS, or Azure certification

Tools

Ansible

Python

Bash

Job description

We are supporting a growing technology organisation seeking a Senior Systems Administrator to manage and scale its internal IT and network infrastructure.

This role is hands-on and varied, combining day-to-day IT support with longer-term systems, security, and automation initiatives. You will work closely with internal teams to ensure reliable, secure, and efficient technology operations across the business.

Responsibilities

• Administer Microsoft 365 including user accounts, permissions, licensing, and security configurations
• Provision, image, deploy, and maintain laptops and other hardware across their lifecycle
• Build, maintain, and troubleshoot corporate networks, servers, virtualization platforms, and cloud services
• Monitor alerts and logs, respond to incidents, and maintain backup and recovery processes
• Diagnose system outages, performance issues, and infrastructure bottlenecks
• Manage access provisioning across SaaS platforms and on-prem environments
• Coordinate with third-party vendors for hardware, software, and networking services
• Support IT and DevOps-related projects through to delivery

Requirements

• Proven experience as a Systems Administrator, Network Administrator, or IT Support Specialist
• Solid understanding of networking, VPNs, firewalls, and virtualization
• Experience with device imaging and deployment
• Strong troubleshooting and problem-solving skills
• Clear communication skills and a service-focused mindset
• Current CCNA or RHCE certification
• Current IAT II compliant certification
• Automation or DevOps tooling such as Ansible, Packer, Python, or Bash
• Linux and Windows server administration
• Security monitoring and incident response
• Familiarity with CMMC and NIST 800-171 compliance frameworks
• Additional certifications such as Security+, Microsoft, AWS, or Azure