Systems Administrator Senior

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

Overview

GDIT/ARMA-Global is currently pursuing a qualified candidate to serve as a Systems Administrator Senior supporting the sustainment of critical technologies for our customers.

Company Overview

GDIT/ARMA‑Global is a full‑service integrator delivering a wide range of Information Technology services to Government and Commercial clients. We bring extensive experience in overseeing the design, implementation, execution, and sustainment of domestic and international programs, emphasizing no‑fail mission support. GDIT/ARMA‑Global prides itself on providing creative solutions to client challenges through talent and expertise committed to customer success.

Location

Onsite - Mary Esther, FL

Responsibilities

As a Systems Administrator Senior, you will support customer mission objectives by administering, maintaining, and troubleshooting client systems in support of real‑time operational requirements. You will collaborate with a multi‑disciplinary team to deliver resilient and secure system sustainment services that enhance enterprise operations.

You'll be critical to executing solutions in support of customer outcomes. Specifically, you'll be:

• Staying current on new technology platforms, software, tools, and capabilities that improve efficiency and reduce cost while supporting service expansion and customer mission needs

• Supporting project milestones and providing hands‑on technical development, integration, implementation, and sustainment of mobile device services

• Supporting the execution of approved technology strategies and fostering productive partnerships that deliver resilient, highly available mobile management solutions

Role-Specific Knowledge Skills and Abilities:

• Experience supporting or administering TAK systems , including TAK Server and TAK clients (ATAK, WinTAK, WebTAK)

• Ability to install, configure, update, and maintain TAK Server components, plugins, data services, and federated connections

• Experience troubleshooting TAK connectivity, network replication, data feeds, plugin behavior, and certificate‑based authentication issues

• Knowledge of TAK user management, group structures, role‑based access, data‑sharing configuration, and mission package deployment

• Ability to support TAK integration with external systems, services, or data sources (e.g., mapping sources, location feeds, mission data inputs)

• Ability to diagnose TAK client performance issues and provide Tier‑2 support to users operating TAK in mission‑focused environments

• Familiarity with operational workflows where TAK is used for situational awareness, collaboration, and mission execution

• Experience creating, maintaining, or updating TAK configuration documentation, SOPs, checklists, or mission‑support artifacts

• Linux administration experience including navigating the command line, installing packages, managing services, handling permissions, performing log analysis, and troubleshooting Linux client systems

• Understanding of Windows workstation administration including profiles, policies, and application support

• Experience supporting system and application issues across distributed operational environments and remote users

• Understanding of IT fundamentals including networking basics, authentication, hardware peripherals, virtualization, and storage concepts

• Experience with Active Directory for user and device management

• Ability to work independently or collaboratively in fast‑paced operational settings

• Strong communication skills with the ability to explain technical concepts to users with varying technical backgrounds

• Patience, professionalism, and a customer‑service mindset when engaging with users

• Self‑motivated, adaptable, and capable of responding quickly to operational requirements including on‑call support

Security Requirements

• Must have a SECRET clearance with the ability to obtain an SCI (TS/SCI)

Physical Demands

• Lift over 35 LBS

Work Environment

• Work is primarily performed in an administrative office environment

Education, Certification and Experience Requirements

• BS in a related technical discipline or equivalent related experience plus required experience

• 3+ years of combined DoW and/or Commercial industry IT service experience

• 2+ years of Linux systems administration experience

• 2+ years using and supporting Windows operating systems

• Experience supporting client systems in enterprise or mission‑focused environments

• Certifications;

  • Current DoD 8570.01-M IAT Level II certification (Sec+ CE or equivalent) Required

  • Linux+ Desired

  • Amazon Web Services Certified Solutions Architect (Associate or Professional) Desired

GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
● Growth: AI-powered career tool that identifies career steps and learning opportunities
● Support: An internal mobility team focused on helping you achieve your career goals
● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
● Community: Award-winning culture of innovation and a military-friendly workplace

Work Requirements

Years of Experience

3 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

CompTIA Linux+ CE | CompTIA - CompTIA

CompTIA Security+ CE | CompTIA - CompTIA

AWS Certified Solutions Architect - Associate | Amazon Web Services (AWS) - Amazon Web Services (AWS)

Travel Required

None

Citizenship

U.S. Citizenship Required