Senior Enterprise Red Hat Enterprise Linux (RHEL) Administrator

Description

The company is a technology and professional services firm serving U.S. federal, defense, and intelligence agencies. It has about 26,000 staff in more than 50 countries and works in AI, cloud, cyber, and software development.

This Senior Enterprise Red Hat Enterprise Linux (RHEL) Administrator role is based at Fort Belvoir, Virginia, and supports the Defense Threat Reduction Agency (DTRA). You will act as the senior technical authority for the administration, upkeep, security, resilience, and modernization of enterprise Linux infrastructure, handling advanced administration, troubleshooting, automation, compliance, and technical leadership for critical systems.

You will support the Defense Stockpile Management Systems (DSMS) portfolio: DIAMONDS, JADE, NIMACS, Government Acceptance Testing (GAT), and the DIAMONDS Accountability Training System (DATS). Your work keeps these environments secure, available, compliant, recoverable, and ready for high-priority operational demands.

Responsibilities

• Act as the senior technical authority for RHEL platforms that run DSMS mission applications, services, and enterprise infrastructure.
• Work with government stakeholders, program leads, cybersecurity staff, and technical operations teams to analyze, design, configure, test, integrate, maintain, and modernize RHEL systems.
• Build and enforce scalable configuration management, baseline builds, automation, hardening standards, and operating procedures for RHEL.
• Run needs assessments, gap analyses, architecture reviews, and capacity studies, then design and deliver sound fixes that improve availability, performance, resilience, and maintainability.
• Deploy, configure, patch, upgrade, and maintain RHEL operating systems, applications, security tools, configuration management services, and supporting infrastructure.
• Diagnose and fix complex issues across RHEL, applications, networking, storage, authentication, automation, and performance; lead root-cause analysis and record corrective actions.
• Implement, validate, and audit DISA Security Technical Implementation Guides (STIGs), vulnerability fixes, mitigations, Plan of Action and Milestones inputs, and compliance evidence.
• Support patching, vulnerability management, monitoring, audit logging, backup and recovery, disaster recovery, and continuity-of-operations needs for RHEL platforms.
• Be the main technical contact for RHEL issues affecting mission applications, and coordinate resolution with application, database, network, enterprise, cybersecurity, virtualization, and field support teams.
• Write and maintain technical documentation, standard procedures, implementation plans, recovery procedures, automation scripts, and configuration records.
• Mentor and provide quality assurance for junior administrators, guide implementation decisions, and promote consistent, secure, supportable RHEL operations across the enterprise.

Requirements

• Required: Ability to work independently and as part of a team.
• Required: Strong communication and collaboration skills.
• Required: Advanced problem solving and critical thinking.
• Required: Ability to work entirely from the RHEL command line.
• Required: Broad understanding of how RHEL interacts with external applications, platforms, and services, such as Active Directory/LDAP integration, network file protocols, and Active Directory Certificate Services.
• Required: Intermediate system administration skills on RHEL 7 and 8, including configuring the technologies and services they provide.
• Required: Significant experience writing and running shell scripts.
• Required: 8+ years of related experience.
• Required: BS degree in a related field, or equivalent work experience.
• Required: US citizenship.
• Required: Fully adjudicated Top Secret clearance with TS/SCI eligibility.
• Preferred: Experience supporting Appian Platform, Tenable Security Center with Nessus (ACAS), Trellix ESS client-side, IdM, and git repositories.
• Preferred: Intermediate experience with RHEL 7 and 8 system engineering and concepts such as automation, orchestration, and strategic planning.
• Preferred: Understanding of DevSecOps concepts and practices.
• Preferred: Basic knowledge of SecurID RSA multifactor authentication configurations on RHEL clients.
• Preferred: Strong work ethic, motivation, and a strong drive to learn.
• Preferred: Effective time management and organization skills.
• Preferred certifications: Red Hat credentials such as RHCSA, or Oracle Certified Professional, Oracle Linux System Administrator (OCP-OLSA).

Conditions

Location: Fort Belvoir, Virginia, onsite only.

Schedule: 40 hours per week, with no travel required.

Clearance: Top Secret is required to be held currently, with TS/SCI eligibility obtainable.

Public Trust or other clearance: none required.

Salary: the likely range is $137,700 to $186,300. This is not a guarantee. Pay is set by experience, geographic location, and possibly contract terms, and may fall outside this range.

Identity verification: a biometric and AI-supported check is required during hiring, and you must be on camera for virtual interviews. The company may photograph you to confirm identity, and by proceeding you agree to biometric data collection and use for verification and security.

The company is an equal opportunity employer that welcomes individuals with disabilities and protected veterans.

Benefits

• 401(k) with company match, allowing pre-tax and post-tax contributions up to IRS limits.
• Medical plans, some with Health Savings Accounts, plus dental and vision plans.
• Comprehensive health and wellness packages.
• Paid time off, including vacation, sick and personal time, holidays, paid parental, military, bereavement, and jury duty leave.
• Full flexible work weeks where possible.
• Short- and long-term disability, life, accidental death and dismemberment, personal accident, critical illness, and business travel accident insurance, provided or available.
• An internal mobility team to help you manage your career.
• Paid education and certifications for professional growth.
• Work with current technology on real-world problems.