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Added 2 mins ago
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VISUAL SOFT, INC

Linux System Administrator -Senior - Active TS is required (ONSITE - 100%)

Huntsville, AL, United States

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 30, 2026

Original job description

Visual Soft, Inc is seeking qualified candidates to work on our efforts with a Prime for their end customer, a federal agency in Huntsville, AL

Job Title: Senior Linux System Administrator (AWS) – Top Secret Clearance

Location: Huntsville, Alabama (100% Onsite)

Clearance Required: Active Top Secret Clearance (U.S. Citizenship Required)

Employment Type: Full-Time / Permanent

Education: Bachelor’s Degree (B.S.) in Computer Science, Information Systems, or related field

Experience: Minimum 8+ years of hands-on Linux system administration and cloud operations experience

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.

Key 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.

Required Skills and Qualifications

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 Certifications such as:

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).

Our standard benefits include: Our standard benefits include 3 weeks of Paid time off (PTO that includes sick leave). Any unused PTO will be issued as a check at the end of an employee's anniversary with us. we also provide 2 floating and 8 public holidays. Floating and holidays expire at the end of every year of service of an employee. In addition, company will cover 50% of health and dental insurances only for all full time employees, however, dependents can be added at extra cost. Employee's health and dental coverage becomes effective after 30 days or first of the month after an employee completes initial 30 working days, we cover 50% for the employee's health and dental insurances. An employee has to finish all of your paper work for health and dental in the first 30 days of your employment with us. We provide STD, LTD and one time salary equivalent of life insurance at NO cost to all full time employees. All full time employees or w-2 employees with no benefits will be eligible to participate in company's 401k program after 90 days of employment with a company match of 4%, immediate vesting. In addition, all w-2 employees are eligible to be part of company's profit sharing, no employee contributions required.

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