CGS is looking for an Information Systems Security Staff member, with a current DOD Top Secret / Sensitive Compartmented Information (TS/SCI) clearance, to support the US Army's Mission Command Training Program (MCTP) at Fort Leavenworth, KS. Are you looking for an opportunity to combine your technical skills with big picture thinking to make an impact on national security? You understand your customer's environment and how to develop the right systems for their mission. Your ability to translate real-world needs into technical specifications makes you an integral part of delivering a customer focused engineering solution. As Information Systems Security Staff on our team at the Mission Command Training Program (MCTP), you'll enable large-scale, computer-based training for Army commanders and battle staff. You'll maintain and optimize the U.S. Army's constructive simulation toolkit-ensuring mission-rehearsal exercises on offensive, defensive, stability, and civil-support operations run flawlessly from battalion through echelons-above-corps. You will be embedded at MCTP in Fort Leavenworth, KS (with potential worldwide deployments), providing hands-on technical expertise for the system domain / Enclave suites. Your role ensures the simulation platforms seamlessly integrate with real-world Mission Command systems and deliver realistic, dynamic training environments.Key ResponsibilitiesSystem Administration: Manage servers, workstations, virtual machines, enclave / domain networks, and simulation software (WARSIM) and the JLCCTC Cross Domain Solution Suite (JCDSS). Monitor system health, apply OS and firmware updates, and execute routine backups.Technical Support: Act as subject-matter expert for hardware, software, and basic networking troubleshooting. Respond to and resolve incidents to maintain uninterrupted training operations.Installation & Maintenance: Install, configure, and update simulation applications and peripheral devices. Perform preventive and corrective maintenance in line with DoD Information Assurance directives.Configuration Management: Maintain hardware and software baselines across distributed nodes and exercise networks. Document version control, change histories, and configuration checklists.Exercise Support: Deploy, test, and troubleshoot constructive simulations. Ensure interoperability with live Mission Command platforms so staff train on actual Army systems.Simulation Stimulation: Validate that JLCCTC outputs correctly stimulate Mission Command environments. Troubleshoot integration points with C2 hardware and software.Post-Exercise Analysis: Support After Action Review (AAR) tools by capturing, replaying, and exporting simulation data. Assist exercise directors in debriefs to highlight performance metrics and lessons learned.Collaboration & Continuous Improvement: Coordinate with exercise planners, instructional designers, and senior leaders to refine training scenarios. Propose enhancements to increase simulation fidelity, scalability, and ease of use.Requirements: Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience)Meet DoDM 8140 qualifications with primary DoD Cyber Work Force (DCWF) role of Technical Support Specialist and secondary roles of System Administrator and Product Support Manager at tier, IntermediateThree (3) years of experience with Military training and training supportThree (3) years of experience in integrating training environments, planning architectures, and stimulation of Army Mission Command Information Systems (MCiS) in support of unit training events and distributed exercisesThree (3) years of experience in performing system enhancements and installing software updates.Proficiency with JLCCTC applications (WARSIM) and WARSIM's intel model WIM or equivalent constructive simulation tools.Solid networking fundamentals (TCP/IP, routing, switching, VLANs, VPNs) and secure LAN/WAN operations.Familiarity with DoD configuration and patch management processes (DISA STIGs, SCAP).Strong analytical, troubleshooting, and technical documentation skills.Excellent oral and written communication skills; ability to instruct non-technical military personnelActive DOD Top Secret clearance is required. Working Conditions: Inside Government training facilities.Required Travel: Employees will travel to temporary work locations during exercises.Job Type: Full-Time, ExemptContract Length: More than 1 yearBenefits:Medical, Dental, and Vision Insurance optionsFlex Spending Account options.Disability insurance coverage options.401(k) Traditional and Roth account options.Company paid time on (11) Federal Holidays.Company paid time off.Premium financial advisory servicesOver 2000 free education courses for our employees.Core Government Services is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to disability, protected veteran status, or any other status protected by applicable law.If you require a reasonable accommodation to apply for a Core Government Services position, please contact Human Resources by emailing Support.Services@coregsc.com. 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