System Administrator, Level 3
System Administrator, Level 3
Posted on :
11-09-2025
Employer Active
1 Vacancy
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Monthly Salary
Not Disclosed
Salary Not Disclosed
Vacancy
1 Vacancy
Posted on :
11-09-2025
Job Description
What You Will Do:
Are you ready to take your system administration expertise to the next level in support of mission-critical operations At Independent Software were committed to building resilient secure and scalable IT environments that serve national security goals. As a Level 3 System Administrator youll join a high-performing technical team solving complex challenges across enterprise infrastructure. If you thrive in a collaborative environment and want to make a measurable impact while working with cutting-edge systems Independent Software is where you belong.
As a Level 3 System Administrator at Independent Software you will be responsible for supporting maintaining and optimizing enterprise IT systems across multiple platforms including UNIX Linux and Windows. You will provide Tier 1 through Tier 3 support resolve escalated issues and ensure system integrity through patch management vulnerability scanning and compliance enforcement. You will also support architectural planning and hardware/software integration across a variety of classified and unclassified networks.
Key Responsibilities:
Were 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.
Are you ready to take your system administration expertise to the next level in support of mission-critical operations At Independent Software were committed to building resilient secure and scalable IT environments that serve national security goals. As a Level 3 System Administrator youll join a high-performing technical team solving complex challenges across enterprise infrastructure. If you thrive in a collaborative environment and want to make a measurable impact while working with cutting-edge systems Independent Software is where you belong.
As a Level 3 System Administrator at Independent Software you will be responsible for supporting maintaining and optimizing enterprise IT systems across multiple platforms including UNIX Linux and Windows. You will provide Tier 1 through Tier 3 support resolve escalated issues and ensure system integrity through patch management vulnerability scanning and compliance enforcement. You will also support architectural planning and hardware/software integration across a variety of classified and unclassified networks.
Key Responsibilities:
- Support implementation troubleshooting and maintenance of IT systems
- Manage the configuration and operation of client/server/storage/network infrastructure
- Provide Tier 1 (Help Desk) Tier 2 and Tier 3 (Advanced Escalation) technical support
- Perform user account management tasks (create modify disable remove)
- Conduct periodic vulnerability scans and enforce security compliance
- Apply and manage IAVA security patches and record status
- Monitor system performance and optimize resource utilization
- Provide detailed analysis and escalation reporting to internal customers and agency leadership
- Troubleshoot hardware/software issues and support dispatch systems
- Configure and maintain UNIX Linux and Windows environments
- Implement system upgrades and enhancements to improve reliability and performance
- Coordinate with the ISSO and ISO to support Change and Configuration Management processes
- Track and complete POA&M milestones; update records in the system of record
- Ensure IT assets comply with Identity & Access Control Management (ICAM) policy
- Apply knowledge of mission islands Trusted Thin Client and enhanced VDI technologies
- Analyze and resolve complex integration issues related to hardware applications and SOA
- Design systems and mission architecture in collaboration with engineering teams
- Strong knowledge of UNIX Linux and Windows system administration
- Expertise in Tier 2/Tier 3 problem diagnosis and resolution
- Hands-on experience with configuration management and patch compliance
- Familiarity with POA&M processes and vulnerability remediation
- Experience supporting dispatch systems and resolving related hardware issues
- Ability to coordinate with ISSO/ISO for system authorization and change tracking
- Understanding of SOA interdependencies and mission architecture
- In-depth troubleshooting of enterprise IT systems
- Ability to work independently and within a team in a mission-driven environment
- Understanding of mission islands Trusted Thin Client and enhanced VDI technologies
- Bachelors degree in a technical discipline from an accredited college or university is required; four (4) years of additional System Administrator experience may substitute for a bachelors degree
- Fifteen (15) years of experience as a System Administrator supporting programs or contracts of similar scope type and complexity is required
- Six (6) years of experience with Service Management (ITSM) is required
- Must meet DoD 8570 IAT Level IIcertification requirements
- Computing Environment (CE) Certification required. The CE certification requirements can be fulfilled with either Microsoft OS CentOS or Red Hat OS CE certifications
- ITIL 4 Certification
- Must possess an active TS/SCI with appropriatePolygraph tobe considered for this role
Were 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.
Required Experience:
Senior IC
Employment Type
Full-Time
Key Skills
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