Senior Linux Systems Engineer - TS/SCI with Poly (On-Call)

J&T Business Consulting; New York (NY); On-site; USD 145,000 - 172,000; Full time

Benefits offered by this job

Health insurance

401(k) retirement plan

Paid time off

Life insurance

Tuition reimbursement

Job summary

J&T Business Consulting in Columbia, United States is seeking a Systems Engineer 2 to provide Linux system administration, health monitoring, and operations support for a high‑availability environment. The role emphasizes command‑line management, pipeline oversight, and resolving routine to moderately complex issues.

The candidate must hold TS/SCI with Polygraph; five or more years of hands‑on Linux experience and strong CLI skills are essential.

Qualifications

• Active TS/SCI with Polygraph clearance are required.
• Minimum of five years of hands-on Linux systems administration experience.
• Strong command-line proficiency across Linux environments and shell navigation.

Responsibilities

• Perform routine and advanced Linux OS administration and patching via CLI.
• Oversee application, data, and messaging pipelines to support mission continuity.
• Independently troubleshoot infrastructure and OS defects and bottlenecks.
• Ensure mission system uptime and follow standard operating procedures.
• Document operations and coordinate handoffs with team members.

Skills

Linux administration

Command-line

System monitoring

Troubleshooting

Job description

J&T Business Consulting in Columbia, United States is seeking a Systems Engineer 2 to provide Linux system administration, health monitoring, and operations support for a high‑availability environment. The role emphasizes command‑line management, pipeline oversight, and resolving routine to moderately complex issues.

The candidate must hold TS/SCI with Polygraph; five or more years of hands‑on Linux experience and strong CLI skills are essential.