Senior Linux Systems Administrator / Systems Engineer (Day, Night or Weekend Shift - TS/SCI wit[...]

Red Alpha; Maryland; On-site; USD 175,000 - 225,000; Full time

Benefits offered by this job

5 weeks of leave (25 days personal time off)

401k contribution, immediately vested

Health, dental, and vision insurance

$5,250 per year for education and training

Job summary

Red Alpha is seeking a Senior Linux System Administrator/Engineer in Maryland to maintain and optimize Linux-based infrastructure for mission-critical environments. You will support the Intelligence Community and ensure high availability and security.

The ideal candidate possesses extensive experience in Linux systems, VMware, and operational reliability. We offer a competitive salary range of $175,000 – $225,000 paired with a comprehensive benefits package including health insurance and paid time off.

Qualifications

• 10+ years of relevant experience in systems administration.
• Four additional years of experience may substitute for a degree.
• Experience with security compliance and operational reliability.

Responsibilities

• Administer and support enterprise Linux environments.
• Implement system hardening and security controls.
• Collaborate with cross‑functional technical teams.

Skills

Linux (CentOS, RHEL)

System Administration

VMware

Security+ certification

JBoss/Wildfly

Education

BS in Computer Science or a technical discipline

Tools

Ansible

Terraform

Python

Job description

A day in the life:

We are seeking a Senior Linux System Administrator/Engineer to support a highly available, mission-critical enterprise environment serving the Intelligence Community. This role is responsible for administering, maintaining, and optimizing Linux-based infrastructure, virtualized environments, and application platforms. The ideal candidate will have extensive experience with Red Hat/CentOS systems, VMware, system security, and enterprise application support, with a strong focus on operational reliability, performance, and compliance.

Key Responsibilities include but are not limited to:

• Administer, maintain, and troubleshoot enterprise Linux environments (RHEL/CentOS).
• Support mission‑critical infrastructure to ensure high availability, stability, and security.
• Install, configure, maintain, and support JBoss application servers.
• Create, configure, and manage VMware virtual machines and supporting infrastructure.
• Implement system hardening, security controls, and compliance requirements.
• Automate system administration tasks using Ansible, Terraform, shell scripting, and Python.
• Manage and support physical servers, storage systems, networking, authentication services, and related infrastructure components.
• Monitor system performance, identify issues, and perform troubleshooting and root cause analysis.
• Support system integration efforts and collaborate with cross‑functional technical teams.
• Assist with Oracle database administration activities and support applications utilizing JSON‑based data exchange.

Multiple shifts are available: day (8 AM – 5 PM), night, and weekend (12 hours).

What you bring to the table:

• BS in Computer Science or a technical discipline from an accredited institution. Four (4) additional years of experience may be accepted in lieu of a degree.
• 10+ years of relevant experience in systems administration.
• Security+ certification.
• Proficiency with Linux (CentOS, RHEL).
• Extensive experience installing, configuring, and maintaining JBoss and/or Wildfly.
• Experience with VMware – VM creation, configuration, and operation.

Bonus Skills:

• Linux Administration Certification.
• Experience with RH Ansible.
• Familiarity with Oracle Databases and possibly DBA experience.
• Experience with storage, networking, security compliance, scripting (Python, Shell).

The total package:

Our total compensation package includes a competitive base salary and benefits such as health, life, disability, 401k, paid time off, professional development, and generous bonus programs. Salary range: $175,000 – $225,000.

Additional perks and benefits include:

• Up to 10% 401k contribution, immediately vested.
• Up to 5 weeks of leave (25 days personal time off) and 11 paid floating holidays.
• Company pays 100% premiums for comprehensive health, dental, and vision insurance; majority of premiums for family.
• $5,250 per year toward ongoing education, training, certifications, and professional memberships.
• Spend up to $300 per year on company‑branded merchandise.
• Attend company events such as Oktoberfest, summer picnic, holiday party, and team events.

Every day, our elite customers push through the grind to defend our nation’s freedom. Join us to deliver engineering excellence and support the fight with digital transformation.