Posted today
Secret
Unspecified
Unspecified
IT - Software
Huntsville, AL (On-Site/Office)
MTSI is seeking a highly skilled Senior Linux/Windows System Administrator with extensive experience in integrating Red Hat Enterprise Linux (RHEL) systems into Microsoft Active Directory domains within a secure, enterprise environment. The ideal candidate will have a strong background in Linux and Windows administration, security hardening, and cross-platform integration, ensuring compliance with organizational and regulatory standards.
Responsibilities
Required Qualifications
Required Education
Preferred Qualifications
Required Clearance
Responsibilities
- Administer and maintain Red Hat Enterprise Linux & Windows servers and workstations in a mission-critical environment.
- Work with the Security and IT teams to develop and implement a plan to deploy RHEL workstations and servers within the CMMC framework for use in our enterprise environment.
- Administer and maintain Microsoft Azure and Office 365 services.
- Manage all aspects of Windows Active Directory infrastructure including Domain Controllers, DNS servers, DHCP servers, and file servers.
- Configure and manage HPC (High Performance Computing) Linux clusters.
- Installation, configuration, and support of servers, enterprise storage and associated equipment, network and direct attached storage systems and associated equipment.
- Integrate Linux systems with Microsoft Active Directory for authentication and policy management.
- Implement and maintain security best practices, including system hardening, patch management, and compliance with security frameworks (e.g., DISA STIGs, CMMC, CIS benchmarks).
- Troubleshoot and resolve complex issues related to Linux and Windows interoperability.
- Automate administrative tasks using scripting languages (e.g., Bash, Python, Ansible).
- Collaborate with security teams to ensure systems meet cybersecurity requirements.
- Track and maintain computer assets using asset management tools and ensure asset management systems have up-to-date information.
- Monitor system performance and implement proactive measures for optimization and reliability.
- Provide analysis related to the design, development, and implementation of hardware and software solutions.
- Document system deployments and configurations.
- Research and/or contact vendors regarding technical problems and solutions.
- Demonstrate professionalism in response to customer requests.
Required Qualifications
- 14+ years of total System Administration experience
- 7+ years of experience in Linux system administration
- 5+ years managing Red Hat Enterprise Linux in Microsoft Windows/ Azure enterprise environments.
- Proven experience integrating Linux systems with Microsoft Active Directory (SSSD, Kerberos, LDAP, Intune).
- Strong knowledge of security hardening and compliance standards.
- Proficiency in shell scripting and automation tools (Ansible preferred).
- Familiarity with virtualization and cloud technologies (Azure preferred).
- Excellent troubleshooting and problem-solving skills.
Required Education
- BS or equivalent degree in Computer Science or related field.
Preferred Qualifications
- Red Hat Certified Engineer (RHCE) or equivalent certification.
- Windows Server Hybrid Administrator Associate or similar Microsoft 365 certifications.
- Experience in DoD or other regulated environments with strict security requirements.
- Knowledge of SELinux, firewalld, fapolicyd, and secure networking practices.
- Experience managing GCC High Microsoft Azure/ Office 365.
- Experience configuring & managing Bright High Performance Computing clusters.
Required Clearance
- Must have the ability to obtain/maintain a US government security clearance.
- US citizenship is required.
group id: RTL041421
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