Systems Administrator

Systems Administrator Chantilly, VA Job Type Full-time Description NetCentrics is seeking a Systems Administrator (TS/SCI FS Poly) to support our CIA customer located in Chantilly, VA. The ideal candidate will have proven experience supporting complex enterprise environments across Windows and Linux/CentOS, cloud infrastructures, and Cisco technologies. This role will provide Tier 1–3 support, Operations & Maintenance (O&M), and system engineering to ensure the security, availability, and performance of mission-critical systems. About Us: At NetCentrics, we proudly hold a distinguished position as a leader in cybersecurity, cloud, digital transformation, and mission support. With an esteemed clientele that includes the DoD, DHS, Federal Civilian Agencies, and the Intelligence Community, our impact on national security is undeniable. We are a diverse group of intellectually curious people, solving hard problems, and living by our core values while bonded by the shared vision to secure our nation - join us! Key Responsibilities Perform system administration of Windows and Linux/CentOS servers in an enterprise environment. Configure, monitor, and maintain Cisco technologies including ISE, Umbrella, and DNAC. Provide Tier 1–3 support and O&M for enterprise systems. Define, request, configure, and monitor Cloud server architectures (AWS EC2, RDS, S3, Elastic Load Balancer, Route 53). Implement system upgrades, patches, and security updates. Identify technical risks and develop/execute risk mitigation strategies. Develop and maintain Standard Operating Procedures (SOPs). Manage customer relationships by providing timely communication, technical expertise, and issue resolution. Mandatory Skills & Qualifications Active TS/SCI clearance. Demonstrated experience with system administration in Windows & Linux/CentOS server environments. Demonstrated experience with Cisco ISE, Umbrella, and DNAC. Familiarity with Apple iOS device management. Professional experience defining, configuring, and monitoring AWS architectures (EC2, RDS, S3, Elastic Load Balancer, Route 53) in a Tier 3 support environment. Experience developing and implementing system upgrades. Experience identifying technical risks and risk mitigation strategies. Experience delivering Operations & Maintenance and Tier 1–3 support. Strong customer relationship management skills. Experience creating and updating SOPs. Desired / Optional Skills Experience with Agile management systems (Kanban, Scrum). Experience with wireless technologies. Experience with Cisco Duo, Splunk, and Meraki. Experience with DevSecOps environments (CI/CD pipelines, CloudFormation). Skilled in using CLIs across Windows, AWS, Linux, and Cisco environments. Experience moving systems through the A&A process and monitoring compliance. Experience gathering evidence to support A&A efforts (e.g., POA&Ms). Experience installing and configuring Moodle Learning Management System. Experience with database engineering, development, and administration. Benefits Package NetCentrics offers a comprehensive benefits package to support our employees and their families, including: Employer-matching 401(k) HSA/FSA spending accounts 11 paid federal holidays Open Vacation Policy providing flexibility and balance Full medical, dental, and vision coverage options Where You Belong At the heart of our organization lies a set of five core values that guide every facet of our work. "Mission First" epitomizes our unwavering commitment to our goals. "People Always" underscores the significance we place on our team's well-being and development. We continually strive to "Be Eminent" by consistently pushing the boundaries of excellence. "Embrace the Team" reflects our unwavering belief in the power of collaboration, recognizing that together, we attain greatness. With every action, we "Act with a Purpose," ensuring that our efforts contribute meaningfully to a larger mission. These values serve as the bedrock of our company culture, propelling us forward as a united and purpose-driven team. Why Join NetCentrics Join us not just to be a part of safeguarding our nation, but to be at the forefront of innovation, where your ideas and expertise play a pivotal role in shaping the future of cybersecurity and IT. Together, we're not just protecting systems; we're pioneering them. Come be a part of our team and redefine the possibilities in our industry! Commitment to Diversity This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status or on the basis of disability. Equal Opportunity Employer/Veterans/Disabled