Mid-Level Linux System Administrator with Security Clearance

OASYS, INC.; Huntsville (AL); On-site; USD 85,000 - 110,000; Full time

Benefits offered by this job

BC/BS Health & Dental

Vision

401-K with Matching

ESOP

Tuition Reimbursement

Vacation

Disability

Job summary

OASYS, INC. in Huntsville, AL seeks a Mid-Level Linux System Administrator to support the ARMY on-site at Redstone Arsenal. The role focuses on Linux, networking, and security within a diverse team, with emphasis on DISA STIG compliance and systems support.

Responsibilities include updating lab systems, performing builds, and assisting with cybersecurity scans. Candidates should have Linux admin experience in classified environments and a DoD clearance or eligibility.

Qualifications

• Bachelor’s or Master’s degree in a technical field or equivalent experience.
• 3+ years of sensor or system-level data analysis.
• Linux systems administration experience in a classified lab.
• DoD Secret Clearance eligibility or active clearance desired.
• Linux+ and Security+ certifications.
• Willingness to travel up to 10–20% and provide off-hours support as needed.

Responsibilities

• Monitor, update, and support a digital simulation lab.
• Perform firmware and software updates on Linux platforms (RHEL 7–10).
• Configure and maintain network switches and access controls.
• Conduct cybersecurity scans and provide troubleshooting for lab systems.
• Manage user accounts on classified systems with multi-factor authentication.
• Develop Plans of Action & Mitigation (POA&M) for DISA STIG deviations.
• Automate OS builds (Ansible) as needed.

Skills

Linux

Networking

Security

Teamwork

Communication

Ansible

Education

Bachelor’s or Master’s in CS/Engineering

Tools

DISA STIG tools

Evaluate-STIG

Job description

Mid-Level Linux System Administrator OASYS, INC., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Mid-Level Linux System Administrator to support our ARMY customer onsite at Redstone Arsenal, Huntsville, AL.

Job Responsibilities

You will work with a diverse team to monitor, update, and support a digital simulation lab. Seeking a candidate with a strong background in Linux, networking, and security. Knowledge with a configuration management focus is a plus. Candidates will perform firmware updates, software updates, network configurations, and standing up new systems. This lab supports an independent test platform for the THAAD weapons system. Installation, configuration, and maintenance of system hardware and software on multiple Linux platforms to include RHEL 7-10.

• Network switch configuration and maintenance.
• Provide support for systems and users.
• Complete cybersecurity scans for the lab systems.
• Provide troubleshooting support for hardware and software.
• Manage user accounts on classified systems using multi-factor authentication.
• Performing system backups and restores.
• As required, develop Plans of Action & Mitigation (POA&M) to document deviations from approved DISA STIG requirements.
• Ability to step through automating Operating System builds (Ansible).
• Must be familiar with populating DISA STIG checklists.
• Must be familiar with DISA STIG tools and documents.
• Must be familiar with Evaluate-STIG software for vulnerability scanning.

Minimum Requirements

• Bachelor's or Master's Degree in Computer Science, Engineering, Physics, Math, or a highly related technical field. Years of experience may be substituted for a degree.
• 3+ years of experience with sensor and/or system-level data analysis.
• Bachelor's Degree in Computer Science, a related field, or equivalent experience.
• Linux systems administration experience. Classified lab networking and hardware knowledge.
• Knowledge with a configuration management focus is a plus.
• The ideal candidate will possess excellent communication skills both oral and written; exhibit the ability to adapt and thrive in a dynamic, customer focused work environment.
• Must be able to work in a team environment.
• Previous networks experience.
• Linux+ and Security+ certifications.
• Off Hours support will sometimes be required as mission dictates to support test events.
• Up to 10-20% travel, with minimal Off Hours support will sometimes be required as mission dictates to support test events.

Preferred Requirements

• Previous experience in configuration management and automated Operating System build.
• Strong Cybersecurity knowledge.
• Ansible is also a plus.

Required Education and Eligibility

Required Education: Candidates should possess a bachelor's degree, preferably in Engineering, Cyber, Computer Information Systems, Computer Science, Math, Physics, or other STEM discipline, however, years of experience may be substituted for a degree. Eligibility: Candidates must have the ability to obtain and maintain a DoD Secret Clearance. An Active Secret Clearance is highly desired.

About OASYS, INC.

Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs.

Benefits

• BC/BS of Alabama Health & Dental
• VSP Vision
• Employee Stock Ownership Plan (ESOP)
• 401-K with Matching
• Flexible Spending Account
• Tuition Reimbursement
• Holidays
• Vacation
• Short-term/Long-term Disability

www.oasys-incorporated.com