EMS System Administrator

US Citizenship Required

About the role

Transform technology into opportunity as an EMS System Administrator with GDIT. In this role, you will support mission-critical enterprise IT systems and contribute to the modernization of agency operations. As an EMS System Administrator, you will help ensure today’s operations remain secure while enabling a smarter tomorrow.

We are seeking a proactive, mid-level Enterprise Management Systems (EMS) Administrator to manage, automate, and optimize our critical infrastructure tools. This position requires strong critical thinking, the ability to operate autonomously, and a heavy focus on automating routine tasks using Python and Ansible. You will be instrumental in modernizing our toolsets, reverse-engineering undocumented architectures, and ensuring the high availability of mission-critical identity and access management platforms.

Responsibilities

• Manage, optimize, and automate key infrastructure platforms with a strong emphasis on Identity and Access Management (IAM).
• Ensure the high availability, secure configuration, and reliable performance of core security systems including Cisco ISE, Aruba ClearPass, RSA SecurID, and LDAP services.
• Support incident response for critical outages.
• Manage secondary infrastructure tools.
• Lead efforts to reverse-engineer and document complex, undocumented enterprise environments.
• Strengthen operational resilience through proactive modernization and automation.

Requirements

• Bachelor’s Degree in a relevant field. An additional 4 years of experience may be substituted in lieu of degree.
• Active Secret security clearance (minimum).
• DoD 8570/8140 IAT Level II compliance (e.g., CompTIA Security+ CE).
• 5+ years of progressive experience in IT infrastructure or systems administration, including at least 2-3 years of direct experience managing Linux environments, IAM/NAC tools, and enterprise automation.
• Demonstrated proficiency in scripting (Python, Bash) and configuration management (Ansible).
• Direct experience managing high-availability identity, access, or network access control tools (ISE, ClearPass, RSA, LDAP).
• Exceptional critical thinking skills with a proven ability to work independently in environments with limited existing documentation or mentorship.

Preferred Qualifications

• Experience operating within Department of War (DoW) STIG compliance and IL5 framework guidelines.
• Direct experience with InfoBlox and GitLab administration.
• Prior experience reverse-engineering undocumented infrastructure deployments.

Benefits

• Comprehensive medical, dental, and vision plan options, some with Health Savings Accounts.
• 401(k) plan with company match (pre and post-tax contributions up to IRS annual limits).
• Full-flex work week to balance work and personal priorities.
• Paid time off plans including vacation, sick, personal time, holidays, parental, military, bereavement, and jury duty leave.
• Short and long-term disability benefits, life insurance, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance.
• AI-powered career tool for identifying career steps and learning opportunities.
• Internal mobility team focused on career growth.
• Award-winning culture of innovation and a military-friendly workplace.

Pay

The likely salary range for this position is $131,750 - $178,250. Salary will be set based on experience, geographic location, and possibly contractual requirements.

Schedule

• Scheduled Weekly Hours: 40
• Travel Required: Less than 10%
• Telecommuting Options: Onsite
• Work Location: USA VA Arlington