Systems Administrator - IT Infrastructure & Security

Job Description

Position Overview

We are seeking a skilled Systems Administrator to join our dynamic IT team in a mission-critical environment. This role combines hands-on technical expertise with strategic infrastructure management, supporting both Windows and Linux enterprise environments while maintaining the highest security standards.

Core Responsibilities

Infrastructure Management

Hardware & Systems: Install, configure, and maintain desktop/laptop computers, network switches, enterprise servers, and storage devices across multiple sites

Network Security: Implement and manage comprehensive Network Security Monitoring solutions and robust backup systems

Software Administration: Deploy, configure, and manage diverse software applications including Windows and Linux operating systems, specialized radar signature generation tools, Computer Aided Design (CAD) packages, and software development/compiler environments

Daily Operations

Execute preventive and emergency maintenance procedures

Perform system monitoring and performance optimization

Manage patch deployment and security updates for Linux and Windows operating systems

Conduct security compliance assessments and baseline checks per DoD requirements

Perform security auditing per compliance and control requirements

Required Technical Skills

Windows Environment Expertise

PowerShell Automation: Develop and maintain PowerShell scripts for routine maintenance tasks across multiple sites

System Implementation: Windows OS deployment, imaging, and inventory management systems

Network Services: DNS and DHCP scope management and troubleshooting

Security & Maintenance: Monthly patching cycles, firmware maintenance, and security baseline compliance

Directory Services: Active Directory Group Policy Object (GPO) configuration and management

Monitoring: Implement server monitoring solutions and alerting systems

Linux Systems Proficiency

Operating Systems: Strong working knowledge of Red Hat/CentOS Linux distributions for system implementation and patching

Security Compliance: DISA STIG (Security Technical Implementation Guide) evaluation and implementation experience

Baseline Security: Perform security compliance checks and baseline assessments based on DoD requirements

Integration: Configure Linux authentication against Windows domain controllers

Automation: Advanced Bash scripting for system administration and security compliance tasks

Package Management: Local YUM repository setup and maintenance

Infrastructure & Security

Networking: High-speed Ethernet, fiber optics, router, and firewall configuration

Storage Solutions: Enterprise storage administration and optimization

High Availability: Failover clustering implementation and management

Network Architecture: Modern LAN/WAN concepts, client/server environments, and network monitoring

Security Compliance Tools: Working knowledge of security compliance checkers and STIG evaluation tools

Risk Mitigation: Implement security measures and mitigate risks based on vulnerability assessments

Security Monitoring: Knowledge of SIEM (Security Information and Event Management) solutions

Endpoint Protection: Experience with EDR (Endpoint Detection and Response) solutions preferred

Desired Experience & Qualifications

Technical Background

Proven experience in hardware/software troubleshooting and preventive maintenance

Hands-on experience with information assurance patch installation and security compliance

Knowledge of modern computer systems and network management concepts

Experience with enterprise-level infrastructure in multi-site environments

Working knowledge of DoD security requirements and DISA STIG implementation

Experience evaluating and implementing security baselines and compliance frameworks

Security auditing experience per organizational compliance and control requirements

Professional Skills

Strong analytical and problem-solving abilities

Excellent communication and customer service skills required

Ability to work independently and manage multiple priorities

Experience working in secure, compliance-driven environments

Cross-utilization capability: Ability to be cross-utilized across different teams and projects a plus

Education & Certifications

Education Requirements (Variable based on experience):

Bachelor's degree in Computer Science, Information Technology, or related field

OR equivalent combination of education and professional experience

Preferred Certifications:

Microsoft certifications (MCSA, MCSE, or Azure-related)

Linux certifications (RHCSA, RHCE, CompTIA Linux+)

Cisco networking certifications (CCNA, CCNP)

Security certifications (Security+, CISSP) preferred

Security Clearance

Required: Ability to obtain and maintain a security clearance

Preferred: Current active security clearance

Experience Requirements

2-4 years with Bachelor's degree, 4-7 years with relevant certifications

Compensation & Benefits

Salary Range: $60,000 - $100,000 annually (commensurate with experience and education)

Comprehensive benefits package

Professional development opportunities

Performance-based advancement opportunities

Why Join Our Team?

Work with cutting-edge technology in a secure environment

Opportunity to expand skills across multiple platforms and technologies

Collaborative team environment with experienced professionals

Career growth potential in a stable, mission-focused organization

Continuous learning opportunities through training and certifications

Excellent compensation package including company-paid health, life, and disability insurance; holiday, vacation and sick leave; performance bonus; and 401K retirement

This position requires U.S. citizenship and the ability to obtain appropriate security clearances. We are an Equal Opportunity Employer committed to diversity and inclusion.

Full-time