Information Security Systems Administrator

Req #
Information Technology
Irving, TX - Las Colinas
Monday-Friday 8:00am-5:00pm; on-call as needed
Company Name
PlainsCapital Bank

Job Summary

The Information Security Systems Administrator is responsible for maintaining the configuration of technical security controls to ensure the security of the Bank’s technology and information systems. The Systems Administrator is also involved in maintaining and optimizing systems operations and supporting the mission of the information security organization.

Essential Functions


  1. Functions as the System Administrator of the Bank’s security systems, such as: network security solutions, firewalls, IPS/IDS, e-mail protection, endpoint protection, cloud security systems, and encryption solutions.
  2. Contributes to the security strategy, at an appropriate level, in support of the business strateg
  3. Configures, validates, and maintains technical security controls and technical processes
  4. Supports the vulnerability management program, managing scanning and compliance, to include tools, recurring scanning exercises and management reporting.
  5. Ensures system data management and reporting across platforms.
  6. Executes system optimization activities across platforms.
  7. Effectively communicates technical issues and their business impact.
  8. Must maintain current knowledge of the principles and techniques of technical security controls.
  9. Develop documentation for standards, training, and platform configurations.

  10. Manage tickets opened for the Information Security Engineering team, including providing excellent customer service to end users.
  11. Participate in an on-call rotation for after-hours system support.
  12. Other duties and responsibilities as assigned.

Job Requirements

  • Bachelor degree in relevant discipline(s) or equivalent education/experience in Information Technology or Information Security fields required.

  • Three (3) or more years of progressive IT or Information Security experience required.

  • CISSP (Certified Information Systems Security Professional), CISA (Certified Information Systems Auditor), CISM (Certified Information Systems Manager) or comparable security certification desirable.

  • Must be able to demonstrate experience in securing the use of cloud services.

  • Must have a strong understanding of information security and control environments.
  • Must be able to implement technology management best practices.
  • Strong quantitative and analytical abilities with the ability to develop projects that effectively mitigate security risks to the enterprise.

  • Strong orientation toward problem solving and decision-making in an open and collaborative environment.

  • Excellent verbal, written and interpersonal communication skills, with the ability to develop and maintain productive relationships across business units.

  • Must be able to manage multiple projects and tasks and ensure timely delivery of quality work product.

  • Must be self-motivated with strong initiative, high level of accountability, and attention to detail.



About the Company

At PlainsCapital Bank, we’ve always had a trailblazing spirit. PlainsCapital Bank was founded in 1988 by current Chairman and CEO Alan B. White and a group of young bankers who dreamed of bringing relationship banking to their hometown of Lubbock, Texas. With the acquisition of Plains National Bank, a Lubbock financial institution with one branch and $198.8 million, they began growing the bank one relationship at a time.


Today, PlainsCapital Bank is one of the largest banks in Texas based on deposit market share. We have a statewide presence with more than 65 locations in all major Texas markets. We are a strong and stable financial institution and a trusted community partner. We take pride in helping our customers blaze trails of their own, whether launching or expanding a business, raising a family, or moving into retirement. Our diverse range of services includes commercial banking, treasury management, private banking, and wealth management, as well as consumer banking.      


To learn more, please visit us online at


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