MDA Edge · 1 month ago
Senior Linux System Administrator - Active Top-Secret Clearance
Huntsville, AL
Full-time
Onsite
Senior Level, Lead/Staff
$90K/yr - $150K/yr
8+ years expMDA Edge is a confidential company seeking a Senior Linux System Administrator to support mission-critical systems within a classified federal program. The role involves administering Linux environments and AWS cloud infrastructure while implementing automation and compliance hardening aligned to DoD standards.
Human Resources
No H1B
Security Clearance RequiredU.S. Citizen Only
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
Qualification
Required
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
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
Company
MDA Edge
At MDA Edge, we help our clients reinvent innovation, optimize operations, and reshape perceptions—ensuring they remain at the forefront in today’s fast-evolving world.
51-200 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase