Systems Administrator Senior

Job Description Type of Requisition: Regular Clearance Level Must Currently Possess Interim Secret Clearance Level Must Be Able To Obtain Secret Public Trust/Other Required None Job Family IT Infrastructure and Operations Skills Job Qualifications: Critical Systems, Information Technology (IT) Systems, Linux, System Administration Certifications None Experience 3 + years of related experience US Citizenship Required Yes Overview Job Description: 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 needsSupporting project milestones and providing hands‑on technical development, integration, implementation, and sustainment of mobile device servicesSupporting 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 connectionsExperience troubleshooting TAK connectivity, network replication, data feeds, plugin behavior, and certificate‑based authentication issuesKnowledge of TAK user management, group structures, role‑based access, data‑sharing configuration, and mission package deploymentAbility 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 environmentsFamiliarity with operational workflows where TAK is used for situational awareness, collaboration, and mission executionExperience creating, maintaining, or updating TAK configuration documentation, SOPs, checklists, or mission‑support artifactsLinux administration experience including navigating the command line, installing packages, managing services, handling permissions, performing log analysis, and troubleshooting Linux client systemsUnderstanding of Windows workstation administration including profiles, policies, and application supportExperience supporting system and application issues across distributed operational environments and remote usersUnderstanding of IT fundamentals including networking basics, authentication, hardware peripherals, virtualization, and storage conceptsExperience with Active Directory for user and device managementAbility to work independently or collaboratively in fast‑paced operational settingsStrong communication skills with the ability to explain technical concepts to users with varying technical backgroundsPatience, professionalism, and a customer‑service mindset when engaging with usersSelf‑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 experience3+ years of combined DoW and/or Commercial industry IT service experience2+ years of Linux systems administration experience2+ years using and supporting Windows operating systemsExperience supporting client systems in enterprise or mission‑focused environmentsCertifications;Current DoD 8570.01-M IAT Level II certification (Sec+ CE or equivalent) RequiredLinux+ DesiredAmazon 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 opportunitiesSupport: An internal mobility team focused on helping you achieve your career goalsRewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time offCommunity: Award-winning culture of innovation and a military-friendly workplace OWN YOUR OPPORTUNITY Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward. The likely salary range for this position is $89,250 - $120,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours 40 Travel Required None Telecommuting Options Onsite Work Location: USA FL Mary Esther Additional Work Locations: Total Rewards At GDIT Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans