Job Title: Operational Technology (OT) System Administrator

Location: Robins Air Force Base – Warner Robins, GA

Employment Type: Full-Time, Direct Hire

Work Arrangement: Onsite

Salary Range: $105,000 – $130,000 + bi-annual bonus

Export Compliance: U.S. citizenship required under ITAR regulations. Must be able to obtain a security clearance.

Position Overview

Our client is seeking an experienced OT System Administrator to support, maintain, and enhance the technology systems that underpin industrial and mission-critical operations. This role focuses on ensuring the stability, security, and performance of OT environments—including SCADA platforms, PLC networks, HMIs, and other industrial control systems—while aligning with government cybersecurity requirements and operational best practices.

Primary Responsibilities

Administer and maintain OT systems such as SCADA, PLCs, HMIs, RTUs, and DCS within government-operated environments
Manage and support OT networks, ensuring alignment with federal cybersecurity frameworks (NIST 800-82, CISA guidance, FISMA, etc.)
Safeguard the availability, integrity, and security of OT infrastructure
Apply patches, updates, and backups in accordance with established change management processes
Monitor OT network performance and troubleshoot, resolve, and document system issues
Collaborate with IT teams to maintain proper segmentation and secure integration between IT and OT networks
Maintain accurate hardware/software inventories and up-to-date OT network diagrams
Support disaster recovery planning and execution for OT systems
Ensure compliance with regulatory, security, and internal standards related to industrial control systems
Participate in a 24/7 on-call rotation for critical operational support

What We’re Looking For

This role is ideal for someone who thrives in complex technical environments, enjoys solving evolving challenges, and communicates effectively across diverse teams. Curiosity, adaptability, and a proactive mindset are highly valued.

Required Qualifications

5+ years of experience in systems or network administration, preferably within OT/ICS environments
Strong understanding of Windows Server, Active Directory, and core networking protocols (TCP/IP, VLANs, firewalls)
Hands-on experience with Windows and Linux administration in operational settings
Familiarity with industrial communication protocols (e.g., Siemens, Allen-Bradley, BacNet, Modbus, OPC, DNP3, Ethernet/IP)
Experience working with SCADA platforms (GE, Schneider, Siemens, Emerson, etc.) and OT asset management tools
Knowledge of Kepware
Experience with virtualization technologies (VMware, Hyper-V), cloud environments (AWS), and backup solutions
Understanding of cybersecurity best practices and federal cybersecurity mandates (NIST, CISA, etc.)
Experience with endpoint protection, IDS/IPS, and SIEM tools in OT environments
Understanding of data acquisition frequencies and industrial data flows
Strong analytical, troubleshooting, and diagnostic skills
Ability to work independently and collaboratively across multidisciplinary teams
Excellent written and verbal communication skills
Detail-oriented with a proactive approach to system reliability and security
At least one relevant security certification (Security+, CySA+, CISSP, CCNA/CCNP, GICSP, ISA/IEC 62443 credentials, etc.)
Must have or be able to obtain a Secret Clearance (U.S. citizenship required)
Must pass a drug screening and background check

Benefits

A comprehensive benefits package is offered, including:

Generous PTO
Medical, dental, vision, and life insurance
401(k) plan
Short- and long-term disability coverage
Professional development and training opportunities

Sigil Partners

New Jobs

Operational Technology (OT) System Administrator