Senior Systems Administrator (Tier 2) – TS/SCI with Polygraph

J&T Business Consulting; Annapolis (MD); On-site; USD 94,000 - 113,000; Full time

Benefits offered by this job

Healthcare

Life Insurance

Disability Insurance

Paid Holidays

PTO

401(k) matching

Tuition reimbursement

Job summary

J&T Business Consulting is seeking a Systems Administrator (Tier 2 Level 2) to join our team in Annapolis Junction, MD. The role focuses on maintaining server infrastructure, operating systems, and core applications within a secure enterprise environment.

You will provide advanced Tier 2 support, apply patches, manage configurations, and ensure strict security controls. The position emphasizes collaboration and documentation across cross-functional IT teams.

Qualifications

• Active TS/SCI with Polygraph required.
• Bachelor’s Degree in IT, CS, or related field with 10+ years of relevant experience or HS Diploma with 15+ years of experience.
• Must hold at least one IAT Level 1 compliant certification (e.g., CompTIA A+ CE, CompTIA Network+ CE).
• Experience in patch management, system configuration, and security controls.

Responsibilities

• Monitor and maintain enterprise servers, OS, and key applications.
• Apply patches and configuration changes per change management procedures.
• Provide Tier 2 support for escalated incidents and perform root cause analysis.
• Implement security controls and participate in audits and vulnerability remediation.
• Create documentation for system configurations and procedures.

Skills

TS/SCI Clearance

System administration

Patch management

Security compliance

Troubleshooting

Education

Bachelor’s Degree in IT/CS

High School Diploma / GED + 15+ years

Tools

CompTIA A+ CE

CompTIA Network+ CE

Server & OS Admin (Windows/Linux)

Remote Desktop Tools

Security Tools/Endpoint Protection

Job description

J&T Business Consulting is seeking a Systems Administrator (Tier 2 Level 2) to join our team in Annapolis Junction, MD. The role focuses on maintaining server infrastructure, operating systems, and core applications within a secure enterprise environment.

You will provide advanced Tier 2 support, apply patches, manage configurations, and ensure strict security controls. The position emphasizes collaboration and documentation across cross-functional IT teams.