Systems Administrator

Dexian Government Solutions is recruiting for a System Administrators IV to support our contract at the Defense Health Agency (DHA) GSP TO7 in ATAMMC, Fort Belvoir, VA. Position Overview: The System Administrator IV holds overall responsibility for the operation and upkeep of computer systems, servers, and networks supporting the Defense Health Agency (DHA) GSP TO7 at ATAMMC, Fort Belvoir, VA. This senior-level administrator supervises all system administration functions, provides strategic direction, and mentors junior staff in support of ATAMMC operations, while managing the day-to-day integrity, security, and availability of infrastructure platforms and collaborating with architecture and engineering teams to evaluate and implement new infrastructure solutions. Contract Support Hours: Monday-Friday, 0600-1800 Job Duties: Deploy, sustain, and troubleshoot server operating systems and their related infrastructure. Manage the day-to-day administration, integrity, security, and availability of infrastructure platforms. Perform daily system backups, monitor performance and capacity, and maintain a secure operational posture. Create and maintain documentation, including SOPs, maintenance guides, and knowledge base articles. Collaborate with architecture and engineering teams to evaluate, recommend, and test new infrastructure hardware and software. Perform infrastructure maintenance and security upgrades. Perform automation, including writing scripts using common scripting languages; requires deep understanding of operating systems, networking, security, and cloud computing. Provide strategic direction for system administration and mentor junior staff. Lead projects related to infrastructure upgrades and optimization; manages as site lead. Install, configure, maintain, and optimize server operating systems (e.g., Microsoft, Linux, and VMware). Sustain Microsoft Active Directory, including object creation and maintenance. Perform Root Cause Analysis to identify, document, and resolve problems as directed. Apply, document, and gain approval for application STIGs. Participate in On-Call/Call-Back rotation for Engineering Services Required Qualifications: Ten (10) years of progressive experience demonstrating the required proficiency in system administration Experience deploying and sustaining enterprise server operating systems including Microsoft Windows Server, Linux, and VMware. Experience managing Microsoft Active Directory in enterprise environments. Experience with backup/recovery operations, performance monitoring, and capacity analysis. Experience creating and maintaining technical documentation including SOPs, maintenance guides, and knowledge base articles. Experience with DISA STIG compliance in DoD IT environments. Proficiency in automation and scripting (e.g., PowerShell, Bash) for system management tasks. DoD Cyber Workforce Framework (DCWF) proficiency level: Advanced. Cyber Role Designation: 451 - System Administrator - Advanced. Certification Requirements: CompTIA CASP+, or (ISC)² CISSP is required to Start. Education Requirements: Master's degree from an accredited college or university in Computer Science, Information Technology, or a related field, and/or equivalency. Clearance Requirements: Tier 3 (T3) Background Investigation required. All personnel must obtain favorable suitability adjudication prior to commencement of duties. Company Description Dexian Government Solutions is an award-winning, ISO 9001:2015 certified, business and GSA contract holder providing diversified Information Technology services to both Civilian and Defense agencies. Services include Software Development, Systems Integration, Data Management, Project Management, Operations & Maintenance, Cybersecurity, and Training and Audio/Visual (AV) Solutions. Dexian Government Solutions has received several recognitions, including rankings on "Top 50 Companies to Watch", Washington Technology's Annual "FAST 50", and Inc. 500's List of "Fastest Growing Private Companies". The Dexian Government Solutions team is comprised of individuals who are dedicated to the success and sustainability of our customers and their missions. Our combination of technical expertise, big business experience, and small business agility allows us to promptly provide our customers with exceptional IT and engineering solutions. Our robust benefits package includes Open Paid Time Off, 11 Federal Paid Holidays & 5 Paid Sick Days, Company-paid Life/AD&D, Company-paid Short Term and Long-Term Disability, Health Insurance with Company Contribution, 401k Plan with Company Match, Employee Recognition Program, opportunity for Employee Referral Bonus, opportunity for annual Performance Bonus and much more! EEO Statement Dexian Government Solutions is proud to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment is decided based on qualifications, merit, and business need. All applicants will be considered for employment without attention to race, religion, color, national origin, ancestry, physical or mental disability, medical condition, pregnancy (including childbirth, lactation and related medical conditions), marital status, genetic information (including characteristics and testing), gender, sexual orientation, gender identity or expression, military and veteran status, or any other status protected under federal, state, or local law in the locations where we operate. If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact Human Resources. The Company invites any applicant and/or employee to review the Company's written Affirmative Action Plan. This plan is available for inspection upon request. #J-18808-Ljbffr