System Administrators IV

Location: 9300 DeWitt Loop, Fort Belvoir, VA 22060

About the role

The System Administrator IV is responsible for deploying, sustaining, and troubleshooting server operating systems and related infrastructure supporting the Defense Health Agency (DHA) GSP TO7 at ATAMMC. This senior-level administrator manages the day-to-day integrity, security, and availability of infrastructure platforms and collaborates with architecture and engineering teams to evaluate and implement new infrastructure solutions.

Contract Support Hours: Monday-Friday, 0600-1800

Responsibilities

• 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.
• Handle complex tasks independently.
• 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.

Requirements

• 10+ years of progressive experience demonstrating the required proficiency in system administration.
• Master's degree in Computer Science, Information Technology, or related field, and/or equivalent years of experience.
• 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.
• Current IAT III Certification is required to start.
• Current/Active DOD Secret Clearance is required to start.

About the company

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.

Benefits

• 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