Principal Firewall & Zero Trust Network Security Engineer

Posted: Monday, 02 February 2026
Valid Thru: Wednesday, 04 March 2026
Index Requested on: 02/02/2026 19:43:16
Indexed on: 02/02/2026 19:43:16

Location: Irving, TX, 75039, US

Industry: Energy and Utilities
Occupational Category: 15-0000.00 - Computer and Mathematics
Type of Employment: FULL_TIME

Vistra Corporate Services Company is hiring!

Description:

If you have what it takes to become part of the Vistra family and would like to start a promising career with a global leader, take a look at the exciting employment opportunities that are currently available and apply online.

Job Summary

The Principal Network Engineer will work closely with members of the team to maintain the integrity of Vistra's internal network, including customer-facing hosted and cloud environment. The successful candidate will serve as a visionary leader and technical expert, driving the design, implementation, and optimization of next-generation networks.

Job Description

Key Accountabilities

• Lead the strategic design and architecture of large-scale network infrastructures.
• Collaborate with executive leadership and cross-functional teams.
• Provide technical leadership and mentorship to a team of network engineers.
• Drive research and development initiatives.
• Develop and maintain technical standards and best practices.
• Lead troubleshooting efforts of complex network issues.
• Serve as a subject matter expert on network technologies.
• Represent the company in industry forums.

Education, Experience, & Skill Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field or related experience gained through college degree programs and or certifications in related field
• 10+ years of experience in network engineering.
• Expert-level knowledge of networking concepts, protocols, and technologies.
• Extensive experience with network equipment from leading vendors.
• Strong understanding of data center networking, virtualization, cloud technologies, and emerging trends.
• Demonstrated leadership skills.

Relevant certifications preferred.

Key Metrics

• Strong problem-solving and analytical skills.
• Excellent communication and interpersonal skills.
• Ability to work independently and as part of a team.

Keys focus areas include:

  • Firewalls (Palo Alto)
  • Zero Trust Network Security (Zscaler)
  • Networking (Aruba, Cisco)
  • Cloud (AWS, Azure)

#LI-Hybrid

#LI-ND1

Job Family

Information Technology

Company

Vistra Corporate Services Company

Locations

Irving, Texas

Texas

We are a company of people committed to: Exceeding Customer Expectations, Great People, Teamwork, Competitive Spirit and Effective Communication. If this describes you, then apply today!

If you currently work for Vistra or its subsidiaries, please apply via the internal career site.

It is the policy of the Company to comply with all employment laws and to afford equal employment opportunity to individuals in all aspects of employment, including in selection for job opportunities, without regard to race, color, religion, sex, sexual orientation, gender identity, pregnancy, national origin, age, disability, genetic information, military service, protected veteran status, or any other consideration protected by federal, state or local laws.

If you are an individual with a disability and need assistance submitting an application or would like to request an accommodation, please email us at assistance@ vistraenergy.com to make a request.

Responsibilities:

Please review the job description.

Educational requirements:

  • high school

Desired Skills:

Please see the job description for required or recommended skills.

Benefits:

Please see the job description for benefits.

Apply Now