Senior Network Security Engineer Jobs in Texas
Senior Network Security Engineer jobs in Texas are among the most active in the country, concentrated in defense contracting, financial services, energy infrastructure, and healthcare IT, with demand running from mid-level analysts up through principal and staff engineers. The largest hiring metros are Dallas-Fort Worth, Houston, and San Antonio, where employers such as AT&T, Lockheed Martin, and USAA maintain significant security operations. The most sought-after specialties in Texas are network perimeter defense, cloud security architecture, and OT/ICS security tied to the state's energy sector. Find a role that fits below and apply directly.
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Showing 5 of 6+ Senior Network Security Engineer jobs
INTRODUCTION
NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.
ROLE AND RESPONSIBILITIES
NTT DATA's Client is seeking a highly experienced Senior Network Security Engineer to support a strategic initiative involving the encryption and decryption optimization of approximately 80 Next-Generation Firewalls (NGFWs) utilizing Palo Alto Networks technology. The engineer will be responsible for implementing Palo Alto recommended best practices and configuration changes while collaborating closely with internal engineering resources. This role requires strong expertise in Palo Alto firewall administration, SSL/TLS decryption policies, network security architecture, troubleshooting, and integration with Cloudflare and load balancing environments.
Key Responsibilities:
- Lead implementation of Palo Alto recommended changes across approximately 80 NGFW firewalls.
- Design, configure, and optimize SSL/TLS encryption and decryption policies.
- Perform firewall rule analysis, policy tuning, and security hardening.
- Collaborate with Cadence engineering teams on architecture, deployment planning, and operational readiness.
- Work alongside Cloudflare and load balancer infrastructure teams to ensure secure and optimized traffic flow.
- Troubleshoot complex networking and security issues involving encrypted traffic inspection.
- Validate firewall performance, stability, and security compliance after implementation changes.
- Develop implementation documentation, operational procedures, and knowledge transfer materials.
- Mentor and support the junior engineer assigned to the project.
- Assist in transition and operational handoff to the designated Client engineer being groomed for long-term ownership.
BASIC QUALIFICATIONS
- 7+ years of hands-on network security engineering experience.
- Strong expertise with Palo Alto Networks NGFW platforms.
- Deep understanding of SSL/TLS decryption technologies and best practices.
- Experience implementing Palo Alto recommended security architecture and policy changes.
- Hands-on experience with Palo Alto Panorama, Security policies and NAT, Threat Prevention, URL Filtering, SSL Forward Proxy / Inbound Inspection.
- Experience integrating security controls with Cloudflare environments.
- Strong understanding of load balancer technologies and traffic flow concepts.
- Excellent troubleshooting and analytical skills.
- Strong documentation and communication abilities.
PREFERRED QUALIFICATIONS
- Palo Alto certifications (PCNSE preferred).
- Experience in large enterprise firewall environments.
- Familiarity with Zero Trust and modern security architectures.
- Experience working in staff augmentation or consulting engagements.
LOCATION
Location: Plano, Texas (US-TX), United States (US).
ABOUT NTT DATA
NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future.
NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.
NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.
INTRODUCTION
NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.
ROLE AND RESPONSIBILITIES
NTT DATA's Client is seeking a highly experienced Senior Network Security Engineer to support a strategic initiative involving the encryption and decryption optimization of approximately 80 Next-Generation Firewalls (NGFWs) utilizing Palo Alto Networks technology. The engineer will be responsible for implementing Palo Alto recommended best practices and configuration changes while collaborating closely with internal engineering resources. This role requires strong expertise in Palo Alto firewall administration, SSL/TLS decryption policies, network security architecture, troubleshooting, and integration with Cloudflare and load balancing environments.
Key Responsibilities:
- Lead implementation of Palo Alto recommended changes across approximately 80 NGFW firewalls.
- Design, configure, and optimize SSL/TLS encryption and decryption policies.
- Perform firewall rule analysis, policy tuning, and security hardening.
- Collaborate with Cadence engineering teams on architecture, deployment planning, and operational readiness.
- Work alongside Cloudflare and load balancer infrastructure teams to ensure secure and optimized traffic flow.
- Troubleshoot complex networking and security issues involving encrypted traffic inspection.
- Validate firewall performance, stability, and security compliance after implementation changes.
- Develop implementation documentation, operational procedures, and knowledge transfer materials.
- Mentor and support the junior engineer assigned to the project.
- Assist in transition and operational handoff to the designated Client engineer being groomed for long-term ownership.
BASIC QUALIFICATIONS
- 7+ years of hands-on network security engineering experience.
- Strong expertise with Palo Alto Networks NGFW platforms.
- Deep understanding of SSL/TLS decryption technologies and best practices.
- Experience implementing Palo Alto recommended security architecture and policy changes.
- Hands-on experience with Palo Alto Panorama, Security policies and NAT, Threat Prevention, URL Filtering, SSL Forward Proxy / Inbound Inspection.
- Experience integrating security controls with Cloudflare environments.
- Strong understanding of load balancer technologies and traffic flow concepts.
- Excellent troubleshooting and analytical skills.
- Strong documentation and communication abilities.
PREFERRED QUALIFICATIONS
- Palo Alto certifications (PCNSE preferred).
- Experience in large enterprise firewall environments.
- Familiarity with Zero Trust and modern security architectures.
- Experience working in staff augmentation or consulting engagements.
LOCATION
Location: Plano, Texas (US-TX), United States (US).
ABOUT NTT DATA
NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future.
NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.
NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.
See All 6 Senior Network Security Engineer Jobs in Texas
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Find JobsSenior Network Security Engineer Jobs by City in Texas
Where Texas roles are concentrated, by current openings.
Senior Network Security Engineer Job Market in Texas
A snapshot from current Texas openings, updated as new roles post.
Who's Hiring
- Cornelis Networks2
- Glint Tech Solutions1
- NTT DATA1
- Q-EDGE CORPORATION1
Top Industries Hiring
- Electronics & Hardware3
- Technology & Software2
- Consulting & Professional Services1
- Energy1
- Manufacturing1
What Texas Employers Look For
The qualifications that appear most often in senior network security engineer jobs across Texas.
- Active CISSP, CISM, or equivalent certification recognized by Texas federal and defense contractors
- Seven or more years of hands-on experience securing enterprise network infrastructure
- Deep expertise with next-generation firewalls, IDS/IPS, and SIEM platforms
- Proven experience designing and implementing zero-trust network architectures
- Ability to obtain or hold an active U.S. security clearance preferred by many Texas employers
- Bachelor's degree in computer science, information security, or a closely related technical field
Senior Network Security Engineer Jobs in Texas: Frequently Asked Questions
How do you become a senior network security engineer in Texas?
The typical Texas path starts with a bachelor's degree in computer science, cybersecurity, or information systems, followed by foundational roles in network administration or security analysis. Texas does not require a state-issued license for this role, but employers consistently expect industry certifications such as CISSP, CISM, or CompTIA Security+. Defense and government contractors in Texas often require candidates to hold or qualify for a federal security clearance, which becomes a practical prerequisite for advancement in markets like San Antonio and the DFW Metroplex.
How much do senior network security engineers make in Texas?
Senior network security engineers in Texas earn a median of about $129,890 a year, based on May 2025 Bureau of Labor Statistics wage data, ranging from around $77,990 for the lowest 10% to over $178,550 for the top 10%. Pay rises with experience, specialty, and employer.
Which companies hire senior network security engineers in Texas?
Employers hiring senior network security engineers in Texas right now include Cornelis Networks, Cornelis Networks, and Glint Tech Solutions, based on current listings on Migrate Mate as of June 2026. Texas's concentration of defense primes, major financial institutions, and large healthcare systems means hiring is distributed across industries rather than dominated by any single sector.
Which Texas cities have the most senior network security engineer jobs?
Austin, Houston, and Frisco have the most senior network security engineer openings in Texas. Dallas-Fort Worth leads because of its density of financial services firms, telecom headquarters, and managed security service providers, while Houston's energy and healthcare sectors drive demand there, and San Antonio's large military and federal contractor presence, anchored by Joint Base San Antonio, makes it a consistent source of security clearance-required openings.
Are there remote senior network security engineer jobs in Texas?
Yes, and more than most fields. About 17% of senior network security engineer openings tied to Texas are remote or hybrid as of June 2026, reflecting how much of the role involves monitoring dashboards, configuring cloud-based tools, and reviewing policy rather than touching physical hardware. Roles tied to classified government networks or critical on-premises infrastructure are the most likely to require full on-site presence.
How can I get hired as a senior network security engineer in Texas with little or no experience?
The most realistic entry path is through a network administrator or IT support role, then moving laterally into a junior security analyst position once you have hands-on infrastructure exposure. Large Texas employers like USAA, Dell Technologies, and major hospital systems such as Texas Health Resources run structured early-career IT programs that accept candidates without dedicated security experience. Earning CompTIA Security+ or Network+ certifications before applying signals readiness and consistently improves callback rates for entry-level security roles across Texas employers.
Where can I find and apply to senior network security engineer jobs in Texas?
You can find and apply to senior network security engineer jobs in Texas on Migrate Mate, which lists current Texas openings updated regularly. Find the roles that fit your experience and apply directly to the employers posting them.
See All 6 Senior Network Security Engineer Jobs in Texas
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