Senior Systems Administrator/SYS ADMIN

About us: Mission Driven, Employee Focused  At CTI, you’ll be at the center of an award-winning corporate culture, breaking technological barriers and solving real-world problems for our federal government customers. We are committed to hiring the best of the best, and in return, we offer a world-class, truly unique employee experience that is rare within our industry.  If you’re a technical changemaker with a passion for Cyber Operations, Cloud and Data Analytics, or Engineering, we’re looking for you! Love what you do AND where you work - alongside a supportive, innovative team of like-minded individuals. After all, we know that your best work happens when you live your best life, and we do everything we can to make that possible. Are you ready for your best career move?
Due to Federal contract requirements, US citizenship and a top secret security clearance is required for this position.
The day-to-day:
As a Linux Sys Admin/SA, You will be responsible for maintaining system administration support activities for a large complex network environment with geographically distributed systems. The position entails supporting solutions for system engineering requests that continues to meet operational needs, upgrading and maintaining capabilities and security/ system patching. You must be comfortable supporting fast-paced systems which have individual domains, supporting infrastructure, and maintaining a complex IT environment with multiple logins, associated supporting storage and network infrastructures. (Linux, RHEL, CentOS)

Must Haves:

• TS/SCI w/ poly


• Must have experience with Linux and Microsoft-based servers and workstations.
• Must have experience with and/or have knowledge of RHEL 7, RHEL 8, RHEL9, and VMWare. (Linux, Red Hat/RHEL, CentOS)
• Must be proficient with Windows Server 2012R2, 2016, 2019, and Active Directory.
• Must have experience with OS and Application Hardening to include DISA, Best Practices, and High Assurance environments.
• Must have experience with software/hardware deployment, patches, and operating systems, basic system backup and restore functions.
• Must have experience with and/or be familiar with SALT, Ansible, Splunk, Puppet, SolarWinds, Nessus.
• Must have experience with Apache Tomcat, IIS, and/or SQL server database experience.
• Must have a solid understanding of information security principles and practices.
• Must have experience with or familiarity with software and security architectures.
• Must have experience or familiarity with Networking: Switches, Routers, LANs, & cabling.
• Occasional day or short duration travel may be required.


• At least 10 years experience as a Linux/RH/CentOS systems administrator/sys admin.
• Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor’s degree.

Additional Qualifications:

• Experience documenting and providing information for security accreditation and certification. Understanding of advanced security protocols and standards. Experience with Network Security Technologies (e.g. Multiple Domain, PKI, SSP, and Vulnerability Assessment).
• Experience with High Assurance platforms and application integration testing methods.
• Experience with disk arrays, PowerShell and PowerCLI, KVMs,
• Knowledge of PKI systems which uses HSMs to validate key and NTP for synchronization.
• Must have experience optimizing system operations.

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The benefits package:
• Affordable healthcare options with 80% employer paid premium PLUS a company-funded HSA• Dental insurance with 100% employer paid premium• Vision with 80% employer paid premium• 100% employer paid Life insurance• 100% employer paid Short-term and Long-term disability • Annual training, continued education, and professional memberships reimbursement• Unlimited access to Red Hat Enterprise Linux, AWS, and NetApp training and accreditation• Annual reimbursement for phone and internet services• Annual reimbursement for technology i.e. phones, computers, printers, etc.• 401(k) with company match up to 5% with 100% immediate vesting (after 90 days of employment)
The environment and perks:
• Professional development investment and paid time off for training• Contract and work locations in Maryland, Virginia, Colorado, Texas, California, Florida and Hawaii.• Team building events throughout the year such as Destination Family Events, Holiday Party, Monthly Get-Togethers• Leadership Team engagement and mentorship• Performance Recognition• Unlimited complimentary branded apparel
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