System Administrator Level 2; TS​/SCI Polygraph

Position Overview

Apply for System Administrator Level 2 (TS/SCI with Polygraph Required) at J&T Business Consulting in Annapolis Junction, MD, US. This full‑time on-site position offers great opportunities for career growth.

We are seeking a System Administrator Level 2 to support the installation, maintenance, monitoring, and troubleshooting of telecommunications and network infrastructure systems in a 24/7 operational environment. This role involves ensuring continuous system availability, responding to incidents, coordinating with internal and external stakeholders, and performing routine system updates and security‑related maintenance activities. The ideal candidate will have strong technical troubleshooting skills, experience in network/system operations, and the ability to work in a shift‑based mission‑critical environment.

• Install, maintain, and repair telecommunications systems and network infrastructure.
• Provide 24/7 system and infrastructure monitoring, including alerting, logging, ticketing, and reporting.
• Perform administrative support functions related to system operations and maintenance.
• Coordinate with ISP personnel, network operations staff, and customer support teams to ensure situational awareness and incident response.
• Provide notifications and updates regarding system events and outages.
• Perform router and switch updates in support of security and operational requirements.
• Troubleshoot system issues and support resolution of operational incidents.
• Maintain accurate documentation of system status, changes, and incidents.
• Support ongoing operational readiness of mission‑critical systems.

• Sunday to Thursday: 2:00PM–10:00PM
• Monday to Friday: 2:00PM–10:00PM

• Candidate must meet one of the following experience requirements:
  High School Diploma or GED with 15 years of relevant experience OR Bachelor’s degree with 10 years of relevant experience.
• Active TS/SCI security clearance with current polygraph (required).
• Strong creative problem‑solving skills.
• IAT LevelII certification (DoD
  8570 baseline requirement).

• One or more of the following certifications:
  Cisco Certified Network Associate (CCNA) – Security, CompTIA Cybersecurity Analyst (CySA+), CompTIA Security+CE, GIAC Security Essentials (GSEC), Global Industrial Cyber Security Professional (GICSP), Systems Security Certified Practitioner (SSCP).

• Experience in network operations center (NOC) or systems administration environments.
• Familiarity with Cisco networking equipment (routers and switches).
• Experience supporting secure, high‑availability systems in mission‑critical environments.
• Incident response, monitoring, and ticketing system experience.

Salary Range: $70,000 – $120,000 annually. Compensation is based on experience, education, certifications, security clearance level, geographic location, and contract requirements.

• Medical, dental, and vision insurance.
• Life and disability coverage.
• Paid holidays and PTO.
• Paid parental leave.
• Tuition reimbursement.
• 401(k) with employer match.
• Professional development support.

We are an Equal Opportunity Employer and are committed to maintaining a diverse and inclusive workplace. All qualified applicants will receive consideration for employment without regard to any protected characteristic under applicable federal and state law.