Senior Linux System Administrator

Veteran-Owned Firm Seeking a Senior Linux System Administrator for an Onsite Assignment in Huntsville, AL

My name is Stephen Hrutka. I lead a Veteran-Owned management consulting firm in Washington, DC. We specialize in Technical and Cleared Recruiting for the Department of Defense (DoD), the Intelligence Community (IC), and other advanced defense agencies.

At HRUCKUS, we support fellow Veteran-Owned businesses by helping them recruit for positions across organizations such as the VA, SBA, HHS, DARPA, and other leading-edge R&D-focused defense agencies.

We seek to fill a Senior Linux System Administrator role supporting the FBI in Huntsville, AL.

The ideal candidate will possess an active Top-Secret Security Clearance, and 8 years of hands-on Linux system administration experience. They should also have strong expertise in managing AWS cloud infrastructure, including VPC, EC2, EBS, S3, IAM, CloudFormation, and CloudWatch.

If you’re interested, I'll gladly provide more details about the role and discuss your qualifications further.

Thanks,

Stephen M Hrutka

Principal Consultant

HRUCKUS LLC

Executive Summary: HRUCKUS is seeking a Senior Linux System Administrator with Top-Secret Security Clearance for a role supporting the FBI in Huntsville, AL.

Job Description: We are seeking an experienced Senior Linux System Administrator with proven expertise in AWS cloud environments to support mission-critical systems within a classified defense program.

This position is fully onsite in Huntsville, AL, supporting a federal intel agency

The ideal candidate has deep experience managing Red Hat Enterprise Linux (RHEL) or similar distributions, implementing automation and infrastructure-as-code solutions, and maintaining high-availability, secure cloud environments in compliance with DoD security standards.

Responsibilities

• Administer and maintain Linux servers (RHEL, CentOS, Ubuntu) in classified and unclassified environments.
• Design, implement, and maintain AWS infrastructure (VPC, EC2, S3, CloudWatch, IAM, RDS, EFS).
• Automate provisioning, configuration, and deployment tasks using Ansible, Terraform, or CloudFormation.
• Monitor system performance, conduct root-cause analysis, and implement performance tuning.
• Patch and harden Linux systems to meet DISA STIG and RMF compliance requirements.
• Manage user accounts, permissions, and security policies in accordance with DoD standards.
• Support and integrate CI/CD pipelines and DevSecOps practices.
• Collaborate with cybersecurity teams to ensure continuous monitoring and incident response.
• Participate in Agile/Scrum sprints, providing infrastructure support to development and QA teams.
  
  

Qualifications

• Active TOP SECRET clearance
• Bachelor’s degree in Computer Science, Information Systems, Engineering, or related field.
• 8 years of hands-on Linux system administration experience (RHEL, CentOS, Ubuntu).
• Proven experience managing cloud infrastructure in AWS (VPC, EC2, EBS, S3, IAM, CloudFormation, CloudWatch).
• Proficiency in troubleshooting networking concepts (TCP/IP, DNS, firewalls, load balancers).
• Familiarity with CI/CD tools (Jenkins, GitLab CI/CD, AWS CodePipeline).
• Working knowledge of security hardening (STIGs, CIS benchmarks) and RMF controls.
• Excellent problem-solving, documentation, and communication skills.
  
  

Desired Qualifications

• Familiarity with container technologies (Docker, Kubernetes, ECS/EKS).
• Experience with AWS GovCloud or classified AWS regions.
• AWS Certified SysOps Administrator or Solutions Architect
• Red Hat Certified Engineer (RHCE)
• Security , CISSP, or equivalent DoD 8570 certification.
• Exposure to monitoring tools (Splunk, Prometheus, Grafana, Nagios).
  
  

Details

• Job Title: Senior Software Developer
• Location: Redstone Arsenal, Huntsville, AL 35898
• Security Clearance: Top-Secret Clearance
• Salary: Up to $150,000 per year (based on experience)
• Job Type: Full-time, Onsite
  
  

Benefits

• Paid Time Off (PTO): 3 weeks of PTO (including sick leave). Unused PTO is paid out at the end of the year.
• Holidays: 2 floating holidays and eight public holidays per year.
• Health & Dental Insurance: The company covers 50% of employee health and dental insurance (dependents may be added at an extra cost). Coverage becomes effective after 30 days.
• Life Insurance: Standard Short-Term Disability (STD), Long-Term Disability (LTD), and life insurance at no cost to full-time employees.
• 401(k) Program: Eligible after 90 days with a 4% company match and immediate vesting.
• Profit Sharing: Employees can participate in the company’s profit-sharing program without requiring personal contributions.
• Commuting and Parking: No reimbursement for commuting or parking expenses.