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Senior Systems Administrator
Senior Systems Administrator-March 2024
Arlington
Mar 29, 2026
About Senior Systems Administrator

  Description

  The Senior Systems Administrator is a crucial part in SAIC’s mission to delivery leading solutions, capabilities, and resources to our customers in National Security, Defense, Federal/Civilian, and other organizations. As a member of the Classified IT Operations teams, you will be responsible for the day-to-day and continuous administration, monitoring, and compliance of classified network(s), systems, and services in accordance with customer-defined frameworks (i.e. RMF/NIST800-171).

  You will leverage your communication and engagement skills to collaborate with your teammates, who are also highly skilled Administrators, as well as partners and teammates ranging from Engineers, Support Analysts, Security Assessors, and Program Management stakeholders to ensure availability, performance, and quality of the systems/services you maintain.

  As the focal point in the Operational Status and needs of the systems/networks/services you Administer, you will be expected to not only provide regular updates (written and in-person), but effectively team with management and stakeholders to plan and execute on pending needs. A particular attention to detail is required to adhere to controls and schedules, while the ideal candidate is also able to be agile; adapting to ad-hoc requests, offering constructive assistance, and being engaged in their own professional development.

  Your ability to effectively manage customer demands and the rigors of providing highly compliant, highly available systems and continuous compliance will result in opportunities to regularly participate in working groups to drive innovation, engage with other SME’s in your field and consult with programs/Administrators to solve emerging challenges.

  Responsible for IT Infrastructure operations of assigned/designated work locations and networks as measured by operational uptime/reliability, performance, and compliance.

  Maintain and configure network related equipment to include routers, switches, firewalls.

  Monitoring, diagnosing, and troubleshooting of servers, workstations, MUSAs, VoIP Phones and other associated network hardware and software.

  Apply patches to servers, workstations, and applications and remediate related vulnerabilities.

  Harden systems and networks and perform vulnerability scanning to ensure compliance.

  Provide infrastructure support for other IT-related services.

  Coordination, Execution, and/or Support for activities through all corporate interfaces (Security, ITO Directorates) and lifecycles (e.g. new or updated software, maintenance, changes in policies or procedures, integration of existing hardware/software).

  Identifies areas requiring product improvement, and engages with team members to design, implement, and verify improvement efforts (e.g. upgrades and hardware or software engineering change orders resulting in the desired performance improvement/compliance mitigation)

  Maintains full awareness of Security, Regulatory, and Corporate policies/compliance requirements, interpreting and managing implementations of technology in support of those controls. (STIGs, CONOPS, POA&M, etc.)

  Performs and provides proactive assessments and testing/validation of controls against requirements (self-auditing) to provide continuous assurance

  Qualifications

  Required Education and Qualifications:

  Bachelors and five (5) years or more experience or Masters and three (3) years related experience. Additional experience may be considered in lieu of a degree.

  US Citizenship and an Active Top Secret clearance with eligibility for obtaining a TS/SCI are required

  5 years' experience in Systems Engineering, Administration, or a related role with applicable skills/experience.

  Experience administrating/engineering management of networked deployments of Windows Server/Workstation and Linux Operating systems

  Experience managing Identity and Authentication solutions including Active Directory (incl. Group Policy Management), PKI, Multi-Factor Authentication.

  Experience implementing and maintaining systems governed under Risk Management Framework (RMF) and NIST 800-53 implementations in secure environments

  Demonstrated ability to analyze, harden and validate compliance across hardware, software, and application layers implementations to satisfy requirements while maintaining functional/operational performance.

  Demonstrated knowledge/experience working with VMWare hypervisors and architecture and other infrastructures at various levels of convergence (traditional, converged, and hyperconverged).

  IAT level III certification or ability to obtain within six months of employment.

  Previous experience designing, deploying, and managing network- and server-based applications and services and processes in Classified, Government, DoD or other similar environments in close conjunction with Compliance/Governance, and Operations teams.

  Demonstrated ability to develop, maintain, and communicate design artifacts including reference documents, architecture, workbooks, and implementation or administration guides

  Agile/Scrum: Familiarity with Agile, Kanban, Scrum, how Scrum is done, standard Scrum/Agile

  Scripting experience a plus (Powershell, Bash)

  Desired Education:

  Bachelors and six (6) years or more experience or Masters and four (4) years related experience. Additional experience may be considered in lieu of a degree.Covid Policy: SAIC does not require COVID-19 vaccinations or boosters. Customer site vaccination requirements must be followed when work is performed at a customer site.REQNUMBER: 2400710

  SAIC is a premier technology integrator, solving our nation’s most complex modernization and systems engineering challenges across the defense, space, federal civilian, and intelligence markets. Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT, including cloud services; cyber; software; advanced analytics and simulation; and training. We are a team of 23,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see Working at SAIC. EOE AA M/F/Vet/Disability

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