What You Will Do:

At Independent Software, as a Systems Administrator you will support secure, mission-critical infrastructure across Linux and mixed Linux/Windows enterprise environments. This role supports a wide range of operational systems including virtualized infrastructure, containerized platforms, cloud-hosted environments, and automated system administration solutions supporting DoD and Intelligence Community missions.

Depending on experience level, you will assist with or lead system administration, troubleshooting, automation, virtualization, compliance support, and operational sustainment activities across complex enterprise environments.

This position is ideal for candidates who enjoy working hands-on with Linux systems, automation tools, virtualization platforms, and secure operational environments while supporting highly available mission systems.

Key Responsibilities:

Deploy, configure, maintain, and troubleshoot Linux-based systems and enterprise infrastructure
Support mixed Linux and Windows operational environments
Administer and maintain containerized environments and virtualization platforms including Proxmox
Develop and maintain automation solutions using Ansible, SALT, and scripting languages such as Bash, Perl, or Python
Support system hardening, patching, upgrades, and lifecycle management activities
Maintain compliance with SSP documentation and STE/STN security requirements
Support cloud-hosted infrastructure and AWS-based environments
Configure and maintain CIFS and Centrify integrations within enterprise environments
Troubleshoot system, application, network, and infrastructure-related issues
Support operational monitoring, system reliability, and performance optimization
Develop and maintain technical documentation and operational procedures
Collaborate with engineering, security, and operations teams to support mission requirements
Participate in on-call support and maintenance activities as required

Required Skills and Qualifications:

Experience administering Linux systems in enterprise or operational environments
Experience with scripting and automation using Bash, Perl, Python, or similar languages
Experience with configuration management and automation tools such as Ansible or SALT
Experience with virtualization technologies such as Proxmox or similar platforms
Experience supporting containerized environments
Understanding of SSP compliance and STE/STN support requirements
Experience supporting cloud infrastructure and AWS environments
Experience with CIFS and Centrify within enterprise environments
Strong troubleshooting and problem-solving skills
Ability to work independently and collaboratively within operational teams
Strong written and verbal communication skills

Education and Experience:

Level 0 (SA0): No demonstrated Systems Administrator experience is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of Systems Administrator experience may be substituted for a bachelor’s degree.
Level 1 (SA1): Five (5) years of experience as a Systems Administrator supporting programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional Systems Administrator experience may be substituted for a bachelor’s degree.
Level 2 (SA2): Ten (10) years of experience as a Systems Administrator supporting programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional Systems Administrator experience may be substituted for a bachelor’s degree.
Level 3 (SA3): Fifteen (15) years of experience as a Systems Administrator supporting programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or university is required. Five (5) years of additional Systems Administrator experience may be substituted for a bachelor’s degree.

Preferred Qualifications:

Experience administering Windows Server environments
Experience supporting Windows Domain Controllers
Experience supporting Microsoft Exchange environments
Experience supporting secure DoD or Intelligence Community systems
Experience supporting mixed-platform enterprise environments

Certifications:

A DoD 8570 IAT Level II baseline certification) is required

Clearance Requirement:

Must possess an active TS SCI with appropriate Polygraph to be considered for this role

Why Choose Independent Software:

At Independent Software, our people are the mission. We’ve built a company around collaboration, integrity, and innovation and we make sure our team has the tools and support to grow, succeed, and thrive.

When you join us, you will:

Support critical national security missions that matter
Be part of a close-knit, employee-first culture where your voice is heard
Expand your skills through ongoing training, mentorship, and career development
Enjoy competitive compensation, generous benefits, and work-life balance

Ready to take the next step in your career? Join us and be part of something bigger.

Apply today.

We’re an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.

Entrepreneurs who are serious about giving their idea the best chance of success turn to Independent Software. Our product development and acceleration services allow startups to build a solid foundation during the early, risky phase of company formation. Through our A100 Software Developer Apprenticeship Program, we develop emerging local talent and connect these A100 Certified Developers with growing, innovative Partner Companies building their teams. Our A100 for Entrepreneurs program provides a revolutionary product development platform to early stage companies looking to reduce risk and maximize the return on their development budget. Venture Partner Companies accelerate their product and their team through a managed service that provides them with Apprentice teams and expert guidance on topics like Customer Development and Agile. Collaboration is at the heart of everything we do. During the software development process, we take an idea from blank page to beta. Clients become a part of our team even as they maintain control and ownership of what we build together. Working with us is also a gateway to other resources like startup founders, supporters, mentors, investors, and talent.

System Administrator

System Administrator

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