System Administrator, Level 1

Independent Software; New York (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Competitive compensation

Generous benefits

Work-life balance

Job summary

Independent Software is seeking a System Administrator Level 1 to support mission-critical Linux environments within secure DoD/IC networks. The role involves maintaining Linux systems, supporting cloud and containerized environments, and ensuring compliance with security requirements in highly secure operational settings.

The position covers virtualization, storage management, PKI/TLS, patching, hardening, and lifecycle management, with collaboration across engineering, security, and operations

Qualifications

• Five (5) years of experience as a System Administrator supporting programs and contracts of similar scope.
• Bachelor’s degree in a technical discipline is required, or ten (10) years of relevant experience in lieu of a degree.
• DoD 8570 IAT Level II certification is required.
• Active TS SCI with polygraph is required.

Responsibilities

• Administer, maintain, and troubleshoot Linux-based servers and infrastructure.
• Support containerized and cloud-hosted environments.
• Manage virtualization platforms and enterprise storage solutions.
• Configure and troubleshoot IP networking, routing, and firewall technologies.
• Support application deployments, maintenance, and troubleshooting activities.
• Implement and maintain PKI, TLS certificates, and enterprise cryptographic policies.
• Perform system patching, hardening, upgrades, and lifecycle management.
• Support SSP compliance activities and STE/STN requirements.
• Troubleshoot system, application, network, and infrastructure issues.
• Develop and maintain technical documentation and operational procedures.
• Collaborate with engineering, security, and operations teams to support mission requirements.

Skills

Linux administration

Cloud environments

Containerization

Virtualization

Storage management

Networking & firewalls

PKI/TLS

Troubleshooting

Team collaboration

Documentation

Education

Bachelor's degree in a technical discipline

Ten years experience substituting for degree

Tools

VMware vSphere

SAN/storage systems

TLS/PKI management

Job description

What You Will Do:

As a System Administrator Level 1 at Independent Software, you will support mission-critical Linux environments within secure Department of Defense and Intelligence Community networks. You will be responsible for maintaining and troubleshooting Linux systems, supporting applications, managing infrastructure components, and ensuring compliance with security requirements in highly secure operational environments.

This role offers the opportunity to work with modern technologies including cloud platforms, containers, virtualization, storage systems, networking, and enterprise security solutions while supporting critical national security missions.

Key Responsibilities:

• Administer, maintain, and troubleshoot Linux-based servers and infrastructure.


• Support containerized and cloud-hosted environments.


• Manage virtualization platforms and enterprise storage solutions.


• Configure and troubleshoot IP networking, routing, and firewall technologies.


• Support application deployments, maintenance, and troubleshooting activities.


• Implement and maintain PKI, TLS certificates, and enterprise cryptographic policies.


• Perform system patching, hardening, upgrades, and lifecycle management.


• Support SSP compliance activities and STE/STN requirements.


• Troubleshoot system, application, network, and infrastructure issues.


• Develop and maintain technical documentation and operational procedures.


• Collaborate with engineering, security, and operations teams to support mission requirements.

Required Skills and Qualifications:

• Experience administering Linux systems in enterprise environments.


• Experience supporting cloud and containerized environments.


• Experience with virtualization and storage management technologies.


• Experience configuring and troubleshooting IP networking and firewalls.


• Strong understanding of PKI, TLS, certificates, encryption technologies, and cryptographic policies.


• Experience supporting enterprise applications and performing system troubleshooting.


• Understanding of SSP compliance requirements and STE/STN support processes.


• Strong analytical, troubleshooting, and problem-solving skills.


• Ability to work independently and within a team environment.


• Strong written and verbal communication skills.

Education and Experience:

• Five (5) years of experience as a System 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.
  OR


• Ten (10) years of System Administrator experience supporting programs and contracts of similar scope, type, and complexity may be substituted for a bachelor’s degree.

Certifications:

• Must meet DoD 8570 IAT Level II certification

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

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.