Security-Cleared Systems Engineer (TS/SCI) - On-Site

JTEC Consulting LLC; Chantilly (VA); On-site; USD 110,000 - 160,000; Full time

Job summary

JTEC Consulting LLC is seeking a proactive Mid-Level Systems Engineer (TS/SCI w/ Poly) in Chantilly, VA. This on-site role supports a 24/7 on-call rotation to maintain secure, scalable infrastructure across corporate and production networks.

Ideal candidates will have 2–6 years of systems engineering experience, a STEM degree, and active clearance. Responsibilities include design, automation, incident resolution, and collaboration with software teams to uphold security and uptime.

Qualifications

• U.S. citizenship
• Current TS/SCI with agency-specific polygraph required for consideration
• 2-6 years of related professional experience in systems engineering, system administration, software testing, or DevOps environments
• Bachelor's degree in a STEM field (Science, Technology, Engineering, or Mathematics)
• Availability to support on-call 24/7 rotation schedule

Responsibilities

• System Design and Implementation: Architect, install, configure, test, and maintain operating systems, application software, and system management tools across diverse network environments
• Security and Compliance: Ensure secure application environments and maintain compliance standards
• High Availability and Redundancy: Develop and validate multi-tiered backup strategies, disaster recovery runbooks, and redundancy mechanisms
• Monitoring and Proactive Maintenance: Monitor infrastructure performance, analyze resource utilization, and optimize to preserve high availability
• Automation and Scripting: Create automated workflows and scripts to streamline tasks and reduce drift
• Incident Management and Troubleshooting: Diagnose and resolve complex multi-layer issues across hardware, OS, networking, and apps
• On-Call Support: Support 24/7 on-call rotation requirements
• Cross-Functional Collaboration: Work with software engineers, product managers, and leadership to translate requirements into reliable infrastructure
• Technical Documentation: Maintain architectural blueprints, SOPs, runbooks, and support docs

Education

Bachelor's degree in STEM field

Tools

Terraform

Ansible

Docker

Kubernetes

Jenkins

Git

Python

Bash

Linux/Unix

Job description

JTEC Consulting LLC is seeking a proactive Mid-Level Systems Engineer (TS/SCI w/ Poly) in Chantilly, VA. This on-site role supports a 24/7 on-call rotation to maintain secure, scalable infrastructure across corporate and production networks.

Ideal candidates will have 2–6 years of systems engineering experience, a STEM degree, and active clearance. Responsibilities include design, automation, incident resolution, and collaboration with software teams to uphold security and uptime.