Systems Administrator 3

Systems Administrator 3Mission Technologies, a Division of HII is seeking a Systems Administrator 3 to support Modeling, Simulation and Training at the Joint Integrated Test and Training Center – Nellis (JITTC-N), Nellis AFB, NV. The individual's primary responsibility will center on providing Linux system support to ensure optimal performance within Joint Simulation Environment (JSE) at the JITTC-N.Essential Job Responsibilities:Maintain continuous operation of multi-user computer systems to ensure effective support of missions and the Joint Simulation Environment (JSE) is operating at optimal performance levels.Setting up administrator and user service accounts.Administer, patch, and maintain Red Hat Enterprise Linux (RHEL) 8 and 9 systems.Administer, patch, and maintain SUSE Linux Enterprise Server (SLES) 11 SP4 and 12 SP5 systems.Installing system-wide software and allocate mass storage space.Performing configuration management and troubleshooting of systems which may be physical or virtual/server based.Apply and validate DISA STIGs and remediate vulnerability scan findings in support of RMF accreditation.Optimize system operation and resource utilization and perform system capacity analysis and planning.Assist users in accessing and utilizing systems.Interact with users and evaluate vendor products.Make recommendations to purchase hardware and software.Coordinate installation of new and upgraded software and hardware, as well as provide fail-safe and backup systems.Develop and monitor policies and standards for allocations related to the use of available computing resources.Adhere to best practices in securely storing, backing up, and archiving data.Documenting processes related to database design, configuration, and performance.Adhere to and enforce cybersecurity best practices and procedures, particularly in multi-level secure environments.Maintain vigilance to protect sensitive systems and data across classified enclaves.Minimum Qualifications:5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.Experience with LINUX system administration.Strong troubleshooting skills in both hardware and software contexts, including integration with diverse display solutions.Demonstrated knowledge of network administration principles as they apply to simulator systems.Awareness of and adherence to information security best practices.Proficiency in performing configuration management and collaborating with other configuration managers.Detail-oriented and capable of managing complex systems in a high-stakes environment.Ability to write processes for simulator technicians and engineers.Strong oral and written communication and organizational skills to produce and maintain technical documents and procedures.Ability to create and maintain data logging procedures and reports in order to identify issues and submit deficiency reports (DRs) to relevant SMEs to find and resolve required solutions and future requirements.Must be able to work in a team environment.Must have had an active Top Secret clearance within the last 24 months.Preferred Requirements:Active DoD Top Secret/SCI security clearance.Certifications: Linux+ and COMPTIA+/Security+.Experience in JSE, preferably as a Systems Administrator.Previous experience with operating and maintaining Red Hat Enterprise Linux (RHEL).Experience in software design, test and implementation within DoD flight simulators.Experience contributing to the system design or architecture of new and current systems.Experience with Agile software practices.Experience supporting Special Access Program (SAP) efforts.Excellent oral and written communications skills.BS in Computer Science or Computer Engineering.Degrees in Engineering, Math, and Physics may qualify with at least 1 year of C++ and/or Python experience.Physical Requirements: Office, industrial, or shipboard environment. Capable of climbing ladders and tolerating confined spaces and extreme temperature variances. Lifting and moving materials may be required.Benefits:HII is more than a job - it's an opportunity to build a new future. We offer competitive benefits such as best-in-class medical, dental and vision plan choices; wellness resources; employee assistance programs; Savings Plan Options (401(k)); financial planning tools, life insurance; employee discounts; paid holidays and paid time off; tuition reimbursement; as well as early childhood and post-secondary education scholarships. Bonus/other non-recurrent compensation is occasionally offered for qualified positions, and if applicable to this role will be addressed by the recruiter at the screening phase of application. The listed salary range for this role is intended as a good faith estimate based on the role's location, expectations, and responsibilities. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.Why HII:We build the world's most powerful, survivable naval ships and defense technology solutions that safeguard our seas, sky, land, space and cyber. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals. Recognized as one of America's top large company employers, we are a values and ethics driven organization that puts people's safety and well-being first. Regardless of your role or where you serve, at HII, you'll find a supportive and welcoming environment, competitive benefits, and valuable educational and training programs for continual career growth at every stage of your career. Together we are working to ensure a future where everyone can be free and thrive. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, physical or mental disability, age, or veteran status or any other basis protected by federal, state, or local law.Do You Need Assistance? If you need a reasonable accommodation for any part of the employment process, please send an e-mail to View email address on click.appcast.io and let us know the nature of your request and your contact information. Reasonable accommodations are considered on a case-by-case basis.