Senior System Administrator - FFPP-8802

Innovative Systems & Solutions; Maryland; On-site; USD 170,000 - 175,000; Full time

Benefits offered by this job

401(k) matching contributions

Health, Dental, Vision coverage

Employer-funded Health Savings Account

Life and AD&D insurance

Disability coverage

Travel reimbursement

Employee referral program

Employee recognition program

Tuition and training reimbursement

Job summary

Innovative Systems & Solutions in Annapolis Junction, MD, is seeking a Senior System Administrator to support IT systems across client/server/storage/network environments for DoD and Federal customers. The role includes handling Tier 1/2 support, system maintenance, and performance enhancements to ensure reliable operations.

The ideal candidate will have a TS/SCI clearance with polygraph, 10+ years of SA experience, and a Bachelor's degree in a technical discipline.

Qualifications

• Active TS/SCI clearance with polygraph is required.
• Minimum 10 years of experience as a System Administrator in programs of similar scope and complexity.
• Bachelor’s degree in a technical discipline from an accredited college or university.
• 5 additional years of SA experience may substitute for a degree.
• 5 additional years of Systems Engineering experience may substitute.
• Strong experience troubleshooting complex IT systems.
• Experience with UNIX and Windows system administration.
• Ability to manage daily IT operations and provide user support.

Responsibilities

• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support, including problem identification, diagnosis, and resolution.
• Support escalation processes and communicate status updates to agency management and internal stakeholders.
• Maintain involvement in dispatch system and hardware issue resolution.
• Configure and manage UNIX and Windows operating systems.
• Install, troubleshoot, and maintain operating system software and network components.
• Implement system enhancements to improve performance and reliability.
• Monitor daily IT system operations, including servers, storage, networks, and mobile devices.
• Perform system capacity planning and resource optimization.
• Develop system engineering management and integration/test plans.
• Provide detailed analysis and feedback for escalated issues.
• Collaborate with government personnel, program staff, and senior leadership.
• Ensure technical integrity of systems engineering deliverables.

Skills

TS/SCI clearance

System administration

UNIX administration

Windows administration

Troubleshooting IT systems

Education

Bachelor’s degree in a technical discipline

Job description

Innovative Systems & Solutions | Full time - Onsite

Senior System Administrator - FFPP-8802

Annapolis Junction, United States | Posted on 03/17/2026

Innovative Systems & Solutions (ISS) works with a wide spectrum of talent to establish an atmosphere that stimulates creativity, constant progress, and achievement. At ISS, you will have the chance to immediately impact government transformation and our clients' missions by offering information solutions and services to Federal and Department of Defense (DoD) customers. Employees at ISS can look forward to exciting career opportunities.

Job Description

About the Role

The Senior System Administrator will support the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. This role is responsible for managing system infrastructure and ensuring reliable day-to-day operations across client, server, storage, and network environments.

Key Responsibilities

• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support, including problem identification, diagnosis, and resolution
  
• Support escalation processes and communicate status updates to agency management and internal stakeholders
  
• Maintain involvement in dispatch system and hardware issue resolution
  
• Configure and manage UNIX and Windows operating systems
  
• Install, troubleshoot, and maintain operating system software and network components
  
• Implement system enhancements to improve performance and reliability
  
• Monitor daily IT system operations, including servers, storage, networks, and mobile devices
  
• Perform system capacity planning and resource optimization
  
• Develop system engineering management and integration/test plans
  
• Provide detailed analysis and feedback for escalated issues
  
• Collaborate with government personnel, program staff, and senior leadership
  
• Ensure technical integrity of systems engineering deliverables
  

Requirements

Qualifications

• ActiveTS/SCI clearance with polygraph(required)
  
• Minimum10 years of experienceas a System Administrator in programs of similar scope and complexity
  
• Bachelor’s degree in a technical discipline from an accredited college or university
  
• Substitutions:
  
• 5 additional years of SA experience may substitute for a degree
  
• 5 additional years of Systems Engineering experience may also substitute
  
• Strong experience troubleshooting complex IT systems
  
• Experience with UNIX and Windows system administration
  
• Ability to manage daily IT operations and provide user support
  

Salary Range 170-175,000

The salary range provided is a general guideline. ISSI considers several factors when determining compensation, including the role’s responsibilities, candidate experience, education, skills, and current market conditions.

What We Offer

ISSI provides a highly competitive benefits package,including:

• 401(k)with matching contributions
  
• Health,Dental, and Vision coverage
  
• Employer-fundedHealth Savings Account (HSA)
  
• Lifeand AD&D insurance
  
• Short-Termand Long-Term Disability coverage
  
• Businesstravel and expense reimbursement
  
• Employeereferral program with cash bonuses
  
• Employeerecognition program
  
• Tuitionand training reimbursement
  

Who Is ISSI?

ISSI is a growing management and technology consulting firmspecializing in systems and software solutions. Our team is dedicated todelivering exceptional results for both our clients and employees.

Since our inception, we have focused on developinginnovative solutions that help organizations achieve their goals. We prideourselves on collaboration, technical excellence, and staying at the forefrontof emerging technologies.

Equal Opportunity Employer

ISSI is proud to be an Equal Opportunity Employer. Allemployment decisions—including hiring, promotion, discipline, and termination, arebased on merit and business needs. We do not discriminate on the basis of race,color, religion, age, genetic information, or any other protected status underfederal, state, or local law.

Innovative Systems & Solutions is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.