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Senior Linux System Administrator - Active Top-Secret Clearance

Macpower Digital Assets Edge Private Limited
  • Huntsville, AL
  • $90,000–$150,000 Per Year
  • Quick Apply
6 days ago

Job Description

Role Summary:
  • Support mission critical systems within a classified federal program.
  • Administer Linux environments and AWS cloud infrastructure to maintain secure, highly available services.
  • Implement automation, infrastructure as code, and compliance hardening aligned to DoD standards.
Core Responsibilities:
  • Administer and maintain Linux servers in classified and unclassified environments using RHEL, CentOS, and Ubuntu.
  • Design, implement, and maintain AWS infrastructure including VPC, EC2, EBS, S3, IAM, CloudFormation, CloudWatch, RDS, and EFS.
  • Automate provisioning, configuration, deployment, and patching with Ansible, Terraform, or CloudFormation.
  • Monitor system performance, conduct root cause analysis, and implement performance tuning and capacity planning.
  • Patch and harden Linux systems to meet DISA STIG and RMF compliance requirements.
  • Manage users, roles, permissions, and security policies per DoD standards.
  • Support CI/CD pipelines and DevSecOps practices using tools such as Jenkins, GitLab CI/CD, and AWS CodePipeline.
  • Collaborate with cybersecurity teams for continuous monitoring, audit readiness, and incident response.
  • Participate in Agile/Scrum sprints and provide infrastructure support to development and QA teams.
  • Produce clear documentation for architectures, runbooks, IAC modules, and change records.
Required Qualifications:
  • Active Top Secret security clearance.
  • Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field, or equivalent experience.
  • Eight or more years of hands on Linux system administration with RHEL, CentOS, and Ubuntu.
  • Proven experience managing AWS infrastructure including VPC, EC2, EBS, S3, IAM, CloudFormation, and CloudWatch.
  • Strong troubleshooting of networking fundamentals including TCP/IP, DNS, firewalls, and load balancers.
  • Working knowledge of security hardening, DISA STIGs, CIS benchmarks, and RMF controls.
  • Excellent problem solving, documentation, and communication skills.
  • Native or bilingual proficiency in English.
Preferred Qualifications:
  • Experience with container technologies including Docker, Kubernetes, ECS, or EKS.
  • Experience with AWS GovCloud or classified AWS regions.
  • Certifications such as AWS Certified SysOps Administrator, AWS Solutions Architect, or RHCE.
  • DoD 8570 certifications such as Security+ or CISSP.
  • Exposure to monitoring tools such as Splunk, Prometheus, Grafana, or Nagios.
Behavioral Competencies:
  • Detail oriented with strong ownership and follow through in classified environments.
  • Collaborative mindset with cross functional teams including security, development, and operations.
  • Clear and concise communicator able to document and explain complex systems.
  • Proactive, organized, and comfortable operating under change control and audit requirements.
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.

Numbers & Facts

LocationHuntsville, AL
Salary$90,000–$150,000 Per Year

Skills

  • Agile Programming Methodologiesunmatched
  • Amazon Elastic Compute Cloud (EC2)unmatched
  • Amazon Simple Storage Service (S3)unmatched
  • Amazon Web Services (AWS)unmatched
  • Ansibleunmatched
  • Automationunmatched
  • Benchmarkingunmatched
  • CISSP - Certified Information Systems Security Professionalunmatched
  • Capacity and Performance Managementunmatched
  • CentOSunmatched
  • Change Controlunmatched
  • Cloud Computingunmatched
  • Communication Skillsunmatched
  • CompTIA Security+unmatched
  • Computer Scienceunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Cross-Functionalunmatched
  • DNS (Domain Name System)unmatched
  • Defense Information Systems Agency (DISA)unmatched
  • Dental Insuranceunmatched
  • Detail Orientedunmatched
  • DoD Directive 8140unmatched
  • DoD Directive 8570unmatched
  • Dockerunmatched
  • Documentationunmatched
  • English Languageunmatched
  • Firewallsunmatched
  • Follow Throughunmatched
  • Health Insuranceunmatched
  • High Availabilityunmatched
  • Incident Responseunmatched
  • Internet Securityunmatched
  • Jenkinsunmatched
  • Linux Administrationunmatched
  • Linux Operating Systemunmatched
  • Load Balancingunmatched
  • Military/DoD Standardsunmatched
  • Multilingualunmatched
  • Nagios Monitoring Toolunmatched
  • Network Administration/Managementunmatched
  • Organizational Skillsunmatched
  • Performance Analysisunmatched
  • Performance Tuning/Optimizationunmatched
  • Problem Solving Skillsunmatched
  • Quality Assuranceunmatched
  • Red Hat Linux Operating Systemunmatched
  • Regulatory Complianceunmatched
  • Reimbursementunmatched
  • Root Cause Analysisunmatched
  • Scrum Project Management and Software Developmentunmatched
  • Security Clearanceunmatched
  • Software Patchesunmatched
  • Splunkunmatched
  • System Operationsunmatched
  • Systems Engineeringunmatched
  • TCP/IP (Transmission Control Protocol/Internet Protocol)unmatched
  • Team Playerunmatched
  • Top Secret Clearanceunmatched
  • Ubuntuunmatched

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