System Engineer

Job Title: System Engineer

Place of Performance: Springfield, VA

Mandatory Requirements: TS/SCI Clearance

Experience Level: Mid-Sr Level (5+ years)

Travel: Up to 10-20% (CONUS & OCONUS) travel

About JFL Consulting: With more than 20 years of securing some of the U.S. Department of Defense and the Intelligence Community’s most critical networks, JFL Consulting, LLC provides advanced network security solutions to a range of US Government and US commercial clients. Our cybersecurity operators are experts at assessing and defending mission-critical data and the networks that facilitate their operation. We are focused on delivering advanced products and industry best practices that meet each customer’s unique requirements. Visit

What We Offer:

• Salary: $155k- $175k
• 100% employer-paid medical, dental, and vision premiums for employees and dependents
• Flexible Spending Accounts (healthcare, dependent care, and commuter)
• Life insurance, short-term disability and long-term disability
• 401(k) with immediate vesting of company contribution
• Generous PTO policy (15 vacation, 5 sick, 2 personal days, 11 holidays)
• We support your growth through certification reimbursement, dedicated professional development funding, and company-provided access to online learning platforms

Job Overview: JFL Consulting is seeking a skilled System Engineer to lead and support site configurations across secure government environments. This position is focused on configuring, deploying, and optimizing both Linux and Windows-based systems, with a heavy emphasis on on-site system setup, hardware implementation, and secure environment integration. Candidates should have experience working hands-on with servers, virtualization technologies, and scripting, while applying cybersecurity best practices in accordance with DoD standards.

Key Responsibilities:

Site Configuration & Infrastructure Management

• Perform on-site configuration of servers, storage, and networking hardware in secure environments
• Install, cable, and maintain rack-mounted hardware, including power and cooling components
• Deploy, configure, and support infrastructure for Linux and Windows systems
• Build and administer virtualized environments using Proxmox, VMware ESXi, and Hyper-V
• Apply system hardening, OS patching, logging, and backup strategies across physical and virtual systems
• Implement network monitoring tools such as SPAN ports and Gigamon taps
• Ensure infrastructure aligns with DoD cybersecurity frameworks, including RMF and STIGs
• Automate configuration tasks and infrastructure deployments using Bash, Python, or PowerShell
• 5-10% Conus Travel

Security Operations & Monitoring

• Operate and maintain security platforms: Security Onion, Zeek, Suricata, Wazuh, Splunk, Elastic Stack
• Conduct vulnerability scans and implement appropriate security remediation in support of STIGs and RMF
• Monitor system health, identify performance or security issues, and execute timely remediation
• Support incident response, security audits, and continuous compliance efforts

Documentation & Technical Communication

• Develop and maintain detailed documentation: SOPs, network/system diagrams, and baselines
• Present technical recommendations to stakeholders with varying levels of technical expertise
• Contribute to compliance reporting and audit readiness through accurate documentation