Operational Technology Network Administrator

3 weeks ago


Piney Point Village, Texas, United States Dexian - DISYS Full time

Job Title: Operational Technology Network Administrator

Job Summary:

We are seeking a skilled and proactive Contract OT Network Administrator to oversee and maintain the network infrastructure within our Operational Technology (OT) environment.

This role requires a deep understanding of industrial network architecture and cybersecurity, as well as experience with enterprise-level networking products.

The ideal candidate will be responsible for managing and supporting our industrial networks, which include Cisco IE-3300 and 9300 switches, Palo Alto firewalls, Claroty cybersecurity tools, and wireless solutions from Cambium and TropOS.

The candidate will also work closely with our IT and OT security teams to ensure that network operations are secure, resilient, and optimized for performance.

Responsibilities:

  • Network Administration: Configure, manage, and troubleshoot Cisco IE-3300 and Catalyst 9300 switches within an OT network. Ensure proper segmentation, VLAN management, and device connectivity.
  • Firewall Management: Implement, configure, and monitor Palo Alto firewalls to secure network traffic and enforce security policies across OT systems.
  • Cybersecurity: Deploy, manage, and monitor OT security tools such as Claroty CTD and SRA for threat detection and secure remote access. Ensure compliance with cybersecurity standards (e.g., IEC).
  • Endpoint Protection: Administer Carbon Black Application Control for OT network endpoints, ensuring that endpoints are protected from unauthorized applications and potential threats.
  • Wi-Fi Management: Oversee wireless network deployments using Cambium and TropOS solutions to ensure seamless and secure connectivity for all OT systems.
  • Monitoring & Reporting: Utilize SolarWinds to monitor network performance, bandwidth utilization, and identify potential issues within the OT environment.
  • Azure Integration: Support the integration and management of Microsoft Azure services into the OT network for cloud-based applications and infrastructure.
  • Incident Response: Participate in network incident response and troubleshooting, ensuring minimal downtime and rapid recovery for OT operations.
  • Documentation & Compliance: Maintain detailed records of network configurations, security protocols, and compliance measures. Assist in ensuring the network aligns with industry standards like IEC-62443.
  • Collaboration: Work closely with cross-functional teams, including IT, OT security, and third-party vendors, to support network upgrades, new deployments, and incident response initiatives.

Requirements:

  • Bachelor's degree in information technology, Computer Science, or a related field (or equivalent work experience)
  • Minimum 5 years of experience working as a network administrator in an OT or industrial environment
  • Strong hands-on experience with Cisco IE-3300 and Catalyst 9300 switches
  • Proficient in managing Palo Alto Firewalls and Claroty CTD/SRA
  • Familiarity with SolarWinds for network monitoring and performance analysis
  • Experience with Carbon Black Application Control for endpoint security
  • Knowledge of Microsoft Azure for cloud integration within an OT environment
  • Experience with Cambium and TropOS Wi-Fi systems

Preferred Qualifications:

  • Excellent problem-solving abilities, strong communication skills, and the ability to work effectively in cross-functional teams
  • Knowledge of OT network security frameworks such as IEC-62443
  • Familiarity with SCADA systems and real-time industrial control environments
  • Experience in hybrid IT/OT environments and a solid understanding of security best practices

About Dexian - DISYS:

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 https://www.dexian.com/ 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.



  • Piney Point Village, Texas, United States Dexian Full time

    Job Title: Operational Technology Network AdministratorJob Summary:Dexian is seeking a skilled and proactive Contract Operational Technology (OT) Network Administrator to oversee and maintain the network infrastructure within our Operational Technology (OT) environment.Key Responsibilities:- Configure, manage, and troubleshoot Cisco IE-3300 and Catalyst 9300...


  • Piney Point Village, Texas, United States Dexian DISYS Full time

    Job Title: Operational Technology Network AdministratorJob Summary:Dexian DISYS is seeking a skilled and proactive Contract OT Network Administrator to oversee and maintain the network infrastructure within our Operational Technology (OT) environment. This role requires a deep understanding of industrial network architecture and cybersecurity, as well as...


  • Point, Texas, United States Dexian Full time

    Job Title: Operational Technology Network AdministratorAt Dexian, we are seeking a highly skilled and proactive Operational Technology (OT) Network Administrator to join our team. As a key member of our OT team, you will be responsible for overseeing and maintaining the network infrastructure within our OT environment.Key Responsibilities:Configure, manage,...


  • Pilot Point, Texas, United States Dexian Full time

    Job Title: Operational Technology Network AdministratorJob Summary:Dexian is seeking a skilled and proactive Contract Operational Technology (OT) Network Administrator to oversee and maintain the network infrastructure within our Operational Technology (OT) environment.This role requires a deep understanding of industrial network architecture and...


  • Piney Point Village, Texas, United States Dexian DISYS Full time

    pstrongJobTitle:/strongOperationalTechnologyNetworkAdministrator/ppstrongJobSummary:/strong/ppDexianDISYSisseekingaskilledOperationalTechnologyNetworkAdministratortooverseeandmaintainthenetworkinfrastructurewithinourOperationalTechnology(OT)environment.Theidealcandidatewillhaveadeepunderstandingofindustrialnetworkarchitectureandcybersecurity,aswellasexperien...


  • Piney Point Village, Texas, United States Dexian - DISYS Full time

    OT Systems Administrator Job DescriptionWe are 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...


  • Piney Point Village, Texas, United States Dexian DISYS Full time

    Job Title: OT Systems AdministratorAt Dexian DISYS, we are seeking a skilled and proactive Contract OT System Administrator to support and maintain the critical infrastructure within our Operational Technology (OT) environment.Key Responsibilities:Manage and maintain Active Directory services, including user and group management, GPO configuration, and...


  • Piney Point Village, Texas, United States Dexian - DISYS Full time

    Job DescriptionWe are seeking a skilled and proactive Contract OT System Administrator to support and maintain the critical infrastructure within our Operational Technology (OT) environment.Key ResponsibilitiesEnsure the smooth operation of our OT systems and infrastructure, managing configurations, troubleshooting issues, and supporting the overall...


  • Bunker Hill Village, Texas, United States Dexian DISYS Full time

    Job Summary:Patterson-UTI is seeking a highly skilled Network Administrator to design, implement, and support its functional data network infrastructure. The successful candidate will be responsible for managing hardware and software to ensure proper functioning of network services, supporting network operations in Data Center and Field locations, and...


  • Point, Texas, United States Quality Talent Group Full time

    About the JobThe Lead Operations Administrator position is a key role in providing operational oversight and leadership throughout the organization. This position is responsible for leading initiatives as directed by management, overseeing the Labor Pool, and ensuring timely and effective communication and patient care. The ideal candidate will have strong...


  • Pilot Point, Texas, United States Dexian Full time

    We are 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...


  • Pilot Point, Texas, United States Sonic Full time

    Restaurant Operations AssistantSonic Drive-In is seeking a skilled Restaurant Operations Assistant to join our team. As an Assistant Manager, you will assist the General Manager in managing drive-in operations, training and supporting employees, and ensuring quality food service.Key Responsibilities:Manage, train, and monitor team members, carhops, and...

  • CAD Designer

    1 month ago


    Wills Point, Texas, United States JSI Full time

    CAD Technician Job DescriptionWe are seeking a skilled CAD Technician to join our team at JSI. As a CAD Technician, you will play a crucial role in supporting our strategic expansion by utilizing cutting-edge technology to serve our clients and advance your career.Key Responsibilities:Interpret and draw various types of engineering documents, including...

  • CAD Design Specialist

    4 weeks ago


    Wills Point, Texas, United States JSI Full time

    Job OverviewWe are seeking a skilled CAD Technician to join our team at JSI. As a CAD Technician, you will play a crucial role in supporting our strategic expansion by utilizing cutting-edge technology to serve our clients better and advance your career.Key ResponsibilitiesInterpret and draw various types of engineering documents, including design maps,...


  • Wills Point, Texas, United States Brookshire Full time

    Job SummaryAs a key member of our team, you will be responsible for executing various store operation standards and procedures to maintain the quality of product, food, and physical safety, as well as inventory stock levels. You will also be responsible for executing merchandising plans, indirectly managing the achievement of store sales and profits using...


  • Hedwig Village, Texas, United States Quality Talent Group Full time

    About the JobWe are seeking a highly skilled Senior Pharmacy Technician to join our team at Houston Methodist. As a Senior Pharmacy Technician, you will be responsible for providing comprehensive pharmacy services, including controlled substance management, chemotherapy compounding, and unit dose dispensing technology. You will also assist with data...


  • Hedwig Village, Texas, United States Quality Talent Group Full time

    About the JobThe Senior Pharmacy Technician position at Houston Methodist is a key role in providing comprehensive pharmacy services. The successful candidate will be responsible for managing controlled substances, compounding chemotherapy, and operating unit dose dispensing technology. Additionally, they will assist with data collection, training new...

  • Surgical Technologist

    1 month ago


    Hedwig Village, Texas, United States Quality Talent Group Full time

    About the JobThe Sr Surgical Technologist (L&D) position requires a high level of knowledge and skills to provide safe and efficient operating room support functions. The successful candidate will anticipate the needs of the surgeon and nursing staff to support the patient during vaginal delivery and/or surgical procedures.Key ResponsibilitiesPrepare the...

  • Surgical Technologist

    4 weeks ago


    Pilot Point, Texas, United States Quality Talent Group Full time

    About the JobWe are seeking a highly skilled Surgical Technologist to join our team in the Nursery, Labor & Delivery department. As a Sr Surgical Technologist, you will play a critical role in ensuring the safe and efficient operation of the operating room.Key ResponsibilitiesPrepare the operating room, equipment, and supplies for each procedure.Anticipate...

  • Sales Associate

    4 weeks ago


    Highland Village, Texas, United States Chico's FAS Full time

    We are a customer-obsessed, innovative, and dynamic retail company. Our team is dedicated to providing an exceptional customer experience and promoting a product-focused sales culture.Job SummaryThe Sales Associate is responsible for supporting Management in promoting a customer and product-focused sales culture, where our values and guiding principles are...