Demo

Principal Firewall & Zero Trust Network Security Engineer

vst
Irving, TX Full Time
POSTED ON 4/19/2026
AVAILABLE BEFORE 6/19/2026
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. Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company based in Irving, Texas, that provides essential power resources to customers, businesses, and communities from California to Maine. Vistra is the largest competitive power generator in the U.S., with a capacity of approximately 41,000 megawatts, or enough to power 20 million homes, operating in all of the major competitive wholesale markets in the country. Vistra is a leader in the energy transformation and expansion with an unyielding focus on reliability, affordability, and sustainability, powered by a diverse portfolio that includes natural gas, nuclear, coal, solar, and battery energy storage facilities. The company continues to grow its zero-carbon resources, operating the second-largest fleet of competitive nuclear power plants in the country, substantial battery energy storage capacity, and a growing number of solar facilities. Vistra is one of the largest competitive electricity providers in the country and takes an innovative, customer-centric approach to retail, offering solutions to meet customers’ needs, including more than 50 renewable energy plans. Through its family of retail brands, Vistra serves approximately 5 million residential, commercial, and industrial retail customers. As a leader in the responsible transformation of the country’s energy supply, Vistra has made significant progress towards its 2030 and 2050 targets. The company has committed to a 60% reduction of Scope 1 and 2 greenhouse gas emissions by 2030, as compared to our 2010 baseline, and net-zero carbon emissions by 2050, assuming necessary technological advancements and public policy incentives are achieved. Learn more about our environmental, social, and governance efforts and read the company’s sustainability report at https://vistracorp.com/sustainability/. Vistra’s hardworking team is committed to its purpose, “lighting up lives, powering a better way forward” and is guided by four core principles: we do business the right way, we work as a team, we compete to win, and we care about our stakeholders, including our customers, our communities where we work and live, our employees, and our investors. Learn more about how Vistra is powering a better way forward at vistracorp.com. Come join us and be part of something special! Click here to learn more about Vistra. 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.

Salary.com Estimation for Principal Firewall & Zero Trust Network Security Engineer in Irving, TX
$153,279 to $173,584
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