Senior Information Systems Administrator
Concurrent Technologies· enterprise· Defense & Space· Oct 16, 2025 · 13mo agoPosted 376 days ago
Huntsville, AL, US
In office
Full-time
Senior
$145K–$185K est.
6+ years exp
Before you apply
Ghost Signal:
Open since October 16, 2025 — 376 days, and still accepting applications.
Job description
Senior Information Systems Administrator
Concurrent Technologies Corporation
Huntsville, AL
Minimum Clearance Required: Top Secret Clearance
Clearance Level Must Be Able to Obtain: Top Secret Clearance
CTC stays ahead of the latest technology advancements so we can help solve our clients’ toughest challenges. As a part of the Digital Mission Solutions Division, you will be strengthening our team of world-class experts aimed at providing our clients with the most effective solutions. Our expertise in achieving missions is unmatched, and we continue to have a major positive impact throughout the Department of Defense (DoD), Intelligence Community (IC), and beyond. Our IT solutions are at work in high-level, high-priority areas of the DoD and U.S. Government agencies. We are leaders in artificial intelligence and machine learning, cloud architecture and security, cross domain solutions, cybersecurity, edge node technology, synthetic environments, and more. We are honored to be a trusted provider of cutting-edge and customized solutions to our clients for decades. Our experts are leading the rapidly evolving IT industry with innovative work in a variety of disciplines, including DevSecOps, which underpins many of our efforts. With CTC’s IT Division, you become part of a dedicated team committed to advancing the ever-growing possibilities in IT and meeting our clients’ challenges with up-to-the-minute, customized, and powerful solutions.
CTC is looking for talented Senior Information System Administrator with experience accrediting, maintaining, and ensuring cyber security for servers and networks in a classified research and development lab working with space-based information systems. CTC has put together a cohesive energized team who work together on providing secure data systems while dealing with the challenges of critical space-based data. You will get to work with leading edge technologies, further develop your technical skills, and expand into cloud technologies and administration.
Key Responsibilities:
• Maintain current systems and adhere to policies and procedures to ensure their security and integrity on Army Classified networks.
• Support the Risk Management Framework (RMF) in a classified environment while helping to identify and implement overall security requirements for the proper handling of data and provide guidance for development and operational efforts regarding information assurance (IA) functions, particularly those focusing on IA planning, infrastructure protection, and defensive strategy.
• Contribute to security planning, assessment, risk analysis, risk management, certification, security awareness, system administration, networking, maintenance, and continuous monitoring of Windows and Linux servers, workstations, and virtual machines in standalone and networked environments.
Basic Qualifications:
• BA/BS Degree in Computer Science, Computer Information Systems, Management Information Systems or a related field, plus 6-8 years of directly related experience, a MA/MS Degree plus 4-6 years of directly related experience or a PhD plus 2-4 years of directly related experience.
• Working knowledge of system security design process, defense-in-depth/breadth, information security domains, identification, authentication, risk management, contingency planning, incident handling, configuration control, change management, auditing, RMF/ICD 503 process, and principles of IA (confidentiality, integrity, non-repudiation, availability, access control).
• Experience in networking design and architectures, as well as network management.
• Working knowledge of Linux and Windows operating systems (Puppet CM or similar).
• Possess, or obtain within 6 months, GSLC, CAP, or Security+ certification.
• Experience working with Continuous Monitoring strategies.
• Working Knowledge of VMware virtualization technology to include configuration, maintenance as well as snapshot-based backup solutions.
• Familiarity with Cisco and non-vendor specific managed and unmanaged switches and firewalls
• Experience with Windows Servers, to include, GPO, Domain Controllers, DNS and DHCP as well as encryption-based systems.
• Working Knowledge of Patching and updating Windows and Red Hat servers and workstations.
• Familiarity with ACAS Suite, to include Nessus Security Center scanning as well as SCAP tools to create STIG checklists for hardening of systems.
• Risk Management Framework (RMF) along with Enterprise Mission Assurance Support Service (eMASS) experience to address any Plan of Action and milestones POA&M's
• Working knowledge of cabling, such as fiber optic in a multiple Rack environment.
• KVM and SIEM implementation as well as McAfee endpoint enterprise knowledge.
• Shell Scripting knowledge such as Power shell, python and Bash experience will be helpful.
Preferred Qualifications:
• Experience in the administration of cloud-based systems, software, and accreditation.
• Experience in the administration of space-based data systems with familiarity with space-based missions and operations with a focus on data exploitation.
• CISSP certified.
Why CTC?
• Our teams at CTC are passionate and thrive on collaboration in a team environment.
• When we encounter a difficult problem, we have a variety of talented and diverse employees that work together to solve the toughest challenges.
• Competitive salary and benefits package.
• Although our work at CTC is extremely important, we also recognize the need for our employees to maintain a proper mix of work and personal life.
• Visit www.ctc.com to learn more.
Join us! CTC offers exceptional career growth, cutting edge technology, educational opportunities, and recognition for quality work.
Staffing Requisition: SR# 2025-0134
“We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability status, protected veteran status, or any other characteristic protected by law.”
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