OT Systems Administrator

OT Systems Administrator

Job details

Posted
14 October 2024

Location
Piney Point Village, TX

Job type
Permanent

Reference
940619

Job description

Operational Technology (OT) System Administrator
Seeking a skilled and proactive Contract OT System Administrator to support and maintain the critical infrastructure within our Operational Technology (OT) environment. The ideal candidate will have a solid foundation in Active Directory, Windows Server, and virtualized environments, as well as experience with monitoring and backup solutions. Offshore and data center experience is highly desirable.
In this role, you will be responsible for ensuring the smooth operation of our OT systems and
infrastructure, managing configurations, troubleshooting issues, and supporting the overall cybersecurity posture of the OT environment.
Responsibilities
Active Directory Administration: Manage and maintain Active Directory services, including user and group management, GPO configuration, and ADConnect for hybrid identity solutions

Windows Server Administration: Oversee the configuration, deployment, and maintenance of Windows servers within the OT environment, ensuring high availability and performance
GPO Management: Design and implement Group Policy Objects (GPOs) to secure and standardize system configurations across the OT network
Certificate Services: Administer and manage certificate services, including issuing, renewing, and revoking certificates for secure communication and authentication across OT systems
DNS/DHCP Support: Configure, manage, and troubleshoot DNS and DHCP services to ensure proper network connectivity and reliable IP addressing
Data Center Operations: Participate in data center management activities, including server deployment, monitoring, and regular maintenance. Offshore experience with OT environments is a plus
Monitoring & Alerts: Utilize monitoring tools like SCOM, OpenManage, and Struxureware to oversee system health, uptime, and performance. Respond to alerts and troubleshoot issues promptly
Backup & Recovery: Implement and manage backup solutions to ensure critical data and configurations are securely backed up and available for restoration as needed SCCM Management: Manage System Center Configuration Manager (SCCM) for software distribution, patch management, and asset inventory within the OT environment

Virtualization: Administer VMware environments, ensuring optimal performance, scalability, and reliability of virtualized OT systems
Cloud Integration: Support cloud-based services and infrastructure, including Microsoft Azure and Office 365, to ensure seamless integration with OT operations
Incident Response: Participate in incident response activities, helping to quickly resolve system issues while minimizing downtime

Expected Work Hours
Hours: Monday through Thursday, 9-hour days and Friday, 4-hour day.
Able to work remotely two days a week, based on business needs
Travel Requirements: 5% travel to field locations in EagleFord Shale

Licenses/ Certifications
Microsoft Certified: Windows Server or Azure Administrator Associate, VMware Certified Professional (VCP), and other relevant certifications are a plus
Qualifications/ Requirements
Bachelor's degree in information technology, Computer Science, or a related technical field
Minimum 5 years of experience as a system administrator, preferably within an OT or industrial environment
Proficiency in Active Directory administration and GPO management
Strong knowledge of Windows Server administration and DNS/DHCP configuration
Experience with monitoring tools like SCOM, OpenManage, and Struxureware
Familiarity with SCCM for managing patches, software distribution, and system configurations
Expertise in virtualization using VMware
Knowledge of backup solutions and strategies for disaster recovery
Experience with Microsoft Azure, Office 365, and ADConnect

Desired/ Preferred Qualifications
Strong analytical and problem-solving skills, excellent communication abilities, and the capacity to work both independently and as part of a team.
Previous experience working with OT systems in offshore environments
Hands-on experience with data center operations, including rack-and-stack server deployment, monitoring, and support
Understanding of security standards relevant to OT systems, such as IEC-62443

Dexian is a leading provider of staffing, IT, and workforce solutions with over 12,000 employees and 70 locations worldwide. As one of the largest IT staffing companies and the 2nd largest minority-owned staffing company in the U.S., Dexian was formed in 2023 through the merger of DISYS and Signature Consultants. Combining the best elements of its core companies, Dexian's platform connects talent, technology, and organizations to produce game-changing results that help everyone achieve their ambitions and goals.
Dexian's brands include Dexian DISYS, Dexian Signature Consultants, Dexian Government Solutions, Dexian Talent Development and Dexian IT Solutions. Visit ***/ to learn more.
Dexian is an Equal Opportunity Employer that recruits and hires qualified candidates without regard to race, religion, sex, sexual orientation, gender identity, age, national origin, ancestry, citizenship, disability, or veteran status.