Linux Engineer

Linux Engineer

This position requires an ACTIVE DOE Q clearance or an ACTIVE Top-Secret clearance to be considered.

A government contract requires that this position be restricted to U.S. citizens or legal permanent residents. You must provide documentation that you are a U.S. citizen or legal permanent resident to qualify.

Cherokee Federal is seeking a Linux Engineer to join our Cybersecurity Engineering team in a 24/7/365 operational environment. The role includes supporting enterprise IT operations, responding to outages, resolving system issues, and maintaining secure systems for classified data. The ideal candidate is a proactive, detail-oriented self-starter with strong communication skills and the ability to work under minimal supervision.

Join our team as a Linux Engineer and play a key role in supporting secure, mission-critical systems for government operations. In this role, you'll work with the latest Red Hat Enterprise Linux technologies, automation tools, and cybersecurity practices to keep enterprise environments running smoothly and securely. This is an exciting opportunity for a motivated engineer to grow technical expertise while contributing to a high-impact mission.

Compensation & Benefits:

Estimated Starting Salary Range for Linux Engineer: $120,000 - $130,000

Pay commensurate with experience.

Full time benefits include Medical, Dental, Vision, 401K, and other possible benefits as provided. Benefits are subject to change with or without notice.

Linux Engineer Responsibilities Include:

• Serve as a primary escalation point for advanced technical issues, providing expert support via email and phone while managing service tickets and ensuring timely resolution tracking

• Monitor and maintain system/server infrastructure, including patching, upgrades, backups, and configuration.

• Perform root cause analysis and forensic triage to resolve server-related incidents.

• Collaborate with vendors and internal teams to design and evaluate secure systems.

• Integrate Microsoft Windows services with Linux/Unix systems.

• Develop and implement security systems to protect company data from unauthorized access or loss.

• Ensure compliance with industry best practices, standards, and procedures.

• Participate in ongoing professional development and certification training.

• Perform additional duties as assigned.

Linux Engineer Experience, Education, Skills, Abilities requested:

• Bachelor's degree in Computer Science, Information Systems, Information Security, or related field; or 4 years of equivalent professional IT experience.

• Minimum 5 years of enterprise-level IT experience, with preferred expertise in Linux engineering and cybersecurity operations.

• Red Hat Certified System Administrator (RHCSA) or equivalent

• Proficient in Red Hat Enterprise Linux (RHEL) 8/9: engineering, installation, administration, upgrades, and maintenance.

• Experience with Ansible Automation Platform for configuration management and system consistency.

• Skilled in Red Hat Satellite Server for RHEL lifecycle management.

• Nutanix, VMWare

• Strong scripting abilities in Bash, Perl, Python, etc.

• Familiarity with Postfix and Microsoft Exchange email systems.

• Knowledge of CIS Benchmarks and DISA STIG guidelines for Linux system hardening.

• Ability to assess and manage system changes and their security impact.

• Excellent verbal and written communication skills for both technical and non-technical audiences.

• Capable of presenting findings, solutions, and strategic recommendations clearly and effectively.

• Must pass pre-employment qualifications of Cherokee Federal

Preferred Experience, Education, Skills & Technologies:

RHCE, Red Hat Enterprise Linux, Ansible, Satellite Server, Nutanix, VMWare, Atlassian Bitbucket/Jira, Active Directory, SSL Certificate Management, Squid Proxy, PingID Products (PingFederate, PingDirectory), STIG and compliance tools (SCC, Tenable), PostgreSQL, MySQL, MariaDB, Splunk, Nagios XI

Company Information:

Criterion is a part of Cherokee Federal - the division of tribally owned federal contracting companies owned by Cherokee Nation Businesses. As a trusted partner for more than 60 federal clients, Cherokee Federal LLCs are focused on building a brighter future, solving complex challenges, and serving the government's mission with compassion and heart. To learn more about Criterion, visit cherokee-federal.com.

#CherokeeFederal #LI

#LI-RA1

Cherokee Federal is a military friendly employer. Veterans and active military transitioning to civilian status are encouraged to apply.

Keywords:

• Red Hat Enterprise Linux (RHEL 8/9)

• Ansible Automation / Configuration Management

• Linux Hardening (CIS Benchmarks / DISA STIG)

• System Administration & Security Engineering

• Top-Secret Clearance Required

• DOE Q Clearance Required

Legal Disclaimer: All qualified applicants will receive consideration for employment without regard to protected veteran status, disability or any other status protected under applicable federal, state or local law. Many of our job openings require access to government buildings or military installations. Candidates must pass pre-employment qualifications of Cherokee Federal.