SCADA Systems Administrator – Linux/Windows, Secret

Concurrent Technologies Corporation

Northern (KY)

Hybrid

USD 70,000 - 100,000

Full time

4 days ago

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Job summary

Concurrent Technologies Corporation (CTC) is seeking a Systems Administrator in Camp Lejeune, NC, to manage Linux/Windows servers supporting electrical distribution, water/wastewater, ADMS, and SCADA applications. You will administer platforms (Ubuntu, RHEL, Rocky Linux, CentOS) and Nutanix virtualization, while applying DISA STIG controls and maintaining system reliability.

The role involves automation with Bash/PowerShell/Python/SQL, configuring storage, networks, backups, and participating in

Qualifications

Bachelor’s Degree in Computer Science or IT related field or 3+ years of Linux/Windows server administration in critical infrastructure environments.
Experience supporting SCADA, ADMS, industrial-control, or critical-infrastructure applications.
Advanced enterprise Linux experience (Ubuntu, RHEL, Rocky, CentOS).
Experience supporting Ignition, Rockwell FactoryTalk/PlantPAx, and Nutanix virtualization.
Experience applying and documenting DISA STIG compliance.
Automation in Bash, PowerShell, Python, and SQL.
Ability to obtain and maintain a Secret security clearance.
Applicable DoD 8140 baseline certification.

Responsibilities

Build, harden, configure, administer, and maintain Linux and Windows servers supporting electrical-distribution, water/wastewater, ADMS, and SCADA applications.
Administer enterprise Linux platforms, including Ubuntu, RHEL, Rocky Linux, and CentOS, ensuring secure and reliable operation.
Provision Linux and Windows systems on physical servers and Nutanix-hosted virtual machines.
Administer SEL computing platforms hosting operational applications and SCADA services.
Support Inductive Automation Ignition SCADA environments, including gateways, redundant gateways, databases, historians, alarms, logging, certificates, authentication, and communications.
Support Rockwell Automation environments: FactoryTalk Services Platform, FactoryTalk View SE, PlantPAx, FactoryTalk Historian, licensing, domain-integrated services, SQL databases, and redundant architectures.
Configure and maintain storage, filesystems, networking, host-based firewalls, service accounts, certificates, NTP, logging, database connections, dependencies, redundancy, and backup services.
Conduct advanced Linux troubleshooting, including log analysis, performance tuning, system recovery, and root-cause analysis.
Use Bash, PowerShell, Python, and SQL to automate provisioning, monitoring, backups, reporting, patching, configuration validation, and system-administration tasks.
Administer relational databases such as SQL Server, PostgreSQL, and MySQL.
Apply DISA STIGs to Windows and Linux systems while evaluating operational impact, vendor support, and SCADA uptime requirements.
Document STIG findings, exceptions, mitigations, and compensating controls.
Coordinate with SCADA engineers, electrical/water specialists, application owners, cybersecurity staff, network engineers, and vendors to determine system requirements.
Test patches, upgrades, and security changes in a testbed environment before production deployment.
Perform backup testing, restoration validation, disaster recovery checks, and support incident response following failed updates.
Maintain build guides, configuration baselines, security checklists, dependency diagrams, inventories, recovery procedures, backup documentation, and change records.
Support safe, reliable operations through strong understanding of high availability, redundancy, safety, and continuous-operation needs for SCADA/industrial systems.