Sr. Linux System Administrator / System Engineer

Red Arch Solutions, Inc.; Maryland; On-site; USD 151,000 - 170,000; Full time

Benefits offered by this job

100% paid employee healthcare premiums

Generous PTO

10% 401K with 6% match

Annualized bonus compensation

Tuition reimbursement

Job summary

Red Arch Solutions, Inc. is seeking a highly experienced Senior Linux System Administrator / System Engineer to support a high-visibility mission environment within the Intelligence Community. This role requires deep expertise in Linux system administration, virtualization, automation, and security compliance.

The candidate must have 10+ years of experience and an active TS/SCI with Polygraph. Responsibilities include administering Linux-based systems, supporting mission-critical infrastructure, and implementing automation solutions.

Qualifications

• 10+ years of experience as a Linux System Administrator/Engineer.
• Active TS/SCI with Polygraph.
• Strong expertise with Linux (RHEL/CentOS) environments.

Responsibilities

• Administer, maintain, and optimize Linux-based systems (RHEL/CentOS).
• Support mission-critical infrastructure focused on availability, performance, and security.
• Implement automation solutions using Ansible, Terraform, or similar tools.

Skills

Linux System Administration

VMware

Security compliance

Automation with Ansible/Terraform

Scripting (Shell/Python)

Education

Security+ Certification

Tools

JBoss

Oracle Database

Job description

An active TS/SCI with Polygraph is required for this position.

Position Overview

We are seeking a highly experienced Senior Linux System Administrator / System Engineer to support a high‑visibility mission environment within the Intelligence Community. This role requires deep expertise in Linux system administration, virtualization, automation, and security compliance, along with the ability to operate in a fast‑paced, mission‑critical setting.

Key Responsibilities

• Administer, maintain, and optimize Linux‑based systems (RHEL/CentOS) in a secure enterprise environment
• Support mission‑critical infrastructure with a focus on availability, performance, and security
• Create, configure, and manage VMware virtual machines
• Install, configure, and maintain JBoss application environments
• Implement automation solutions using Ansible, Terraform, or similar tools
• Perform system monitoring, troubleshooting, and root cause analysis
• Support security compliance initiatives and system hardening efforts
• Collaborate with cross‑functional teams across storage, networking, and security domains
• Provide support for 24x7 operations, including on‑call and after‑hours response

Required Qualifications

• 10+ years of experience as a Linux System Administrator/Engineer
• Active TS/SCI with Polygraph.
• Strong expertise with Linux (RHEL/CentOS) environments
• Experience with VMware VM creation, configuration, and operations
• Security+ Certification (required)
• Experience supporting IC (Intelligence Community) mission environments

Highly Desired Qualifications

• Active or recent SYS3 Privileged Access
• Extensive experience with JBoss installation, configuration, and administration
• Hands‑on experience with automation tools such as Ansible or Terraform
• Storage systems and administration
• Networking fundamentals and infrastructure support
• Security compliance and auditing
• Authentication systems
• Scripting with Shell and/or Python
• Physical server administrationExperience with Oracle Database and potential DBA exposure
• Familiarity with JSON (JavaScript Object Notation)

Salary range for this position: $151,000 - $170,000 #CJ

Red Arch Solutions Benefits Snapshot

• 100% paid employee healthcare premiums. CareFirst Advantage Best in Class Benefits.
• HaloScripts Concierge prescription medication service
• Generous PTO.
• 10% 401K 6% match vested day one and up to 4% profit sharing contribution.
• Annualized bonus compensation.
• Spot bonuses for hard work.
• Tuition reimbursement.
• 529 College Saving Plan.
• College Loan Pay Back Program.
• 11 Paid Federal Holidays
• Generous Referral Bonuses.

Red Arch Solutions provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Have more questions about Red Arch? Email us at [e-mail]