Onsite Field Infrastructure Engineer: Cyber Ops & Automation

Assured Information Security (AIS); Hanover (MD); On-site; USD 145,000 - 160,000; Full time

Benefits offered by this job

Health insurance

401k contribution

Job summary

Assured Information Security (AIS) is seeking an experienced Technical Field Service Representative (Infrastructure Support) to back a critical 24/7 DoD cyber operations program in Hanover, MD. You will install, administer, and upgrade Linux/Windows systems, manage Cisco devices and NetApp storage, and automate tasks with Ansible and Python while occasionally supporting weekend installations.

The role requires TS/SCI with CI Poly, up to 10% travel, and a Bachelor’s or Master’s degree with

Qualifications

• Bachelor’s degree and 5+ years of directly related experience or a Master’s degree and 3+ years of directly related experience OR an equivalent combination of education and experience.
• Deployment and automation scripting with Ansible and Python
• Linux and Windows system administration
• Patching Windows and Linux vulnerabilities
• Host-based networking and Cisco configurations
• Security Technical Implementation Guides (STIGs)
• Linux+ certification or similar certification
• CCNA certification

Responsibilities

• Support developers by integrating, troubleshooting, and optimizing system components across test and production environments.
• Perform daily system administration, including configuration, patching, performance optimization, and proactive monitoring to maintain stability and reliability.
• Assess user needs and implement system upgrades, configuration changes, and enhancements that improve functionality and overall user experience.
• Monitor system load, usage trends, and capacity to plan technical refreshes and ensure sustainable performance.
• Install, configure, and maintain mid-range operating systems; lead RHEL updates using Ansible and leverage shell scripting for automation.
• Manage Splunk cluster and indexer health to ensure continuous data flow and data integrity; implement monitoring and automation improvements.
• Install and upgrade Cisco NX-OS and Catalyst devices, as well as VCenter, ESXi, and Horizon client suite components.
• Administer and expand NetApp LUNs, ensuring reliable ISCSI connectivity and storage growth.
• Develop innovative solutions to complex technical challenges by applying advanced consulting skills and deep technical expertise while mentoring team members when needed.
• Support operational demands and shifting priorities—including occasional weekend installations and last-minute schedule changes with flexibility and a team-oriented approach.

Skills

Ansible scripting

Python

Linux administration

Windows administration

STIGs

Networking basics

Security clearance

Education

Bachelor's degree + 5+ years experience

Master's degree + 3+ years experience

Linux+ certification

CCNA certification

Tools

vCenter/ESXi/Horizon

Splunk

Cisco NX-OS

NetApp LUNs

Job description

Assured Information Security (AIS) is seeking an experienced Technical Field Service Representative (Infrastructure Support) to back a critical 24/7 DoD cyber operations program in Hanover, MD. You will install, administer, and upgrade Linux/Windows systems, manage Cisco devices and NetApp storage, and automate tasks with Ansible and Python while occasionally supporting weekend installations.

The role requires TS/SCI with CI Poly, up to 10% travel, and a Bachelor’s or Master’s degree with