Principal Cybersecurity - Data Network Security Design & Test Engineer
Charlotte, North Carolina
Job Description:
This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.
Join AT&T and reimagine the communications and technologies that connect the world. Our Chief Security Office ensures that our assets are safeguarded through truthful transparency, enforce accountability and master cybersecurity to stay ahead of threats. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.
Experienced cybersecurity engineer with 8 or more years of professional working knowledge and background in network security principles, standards, and technology evaluation.
Roles and Responsibilities:
• Provides secure network architecture design strategies, capacity management/data coverage planning, implementation of new network feature capabilities, test and evaluation, and operational support.
• Has specialized knowledge in the design and evaluation of cybersecurity applications supporting IP, DNS, Mobility 4G/5G Network Cloud, and VoIP with strong emphasis on data analysis and automated algorithms for threat detection.
• Leads the design and implementation of firewall rules, secure routing/forwarding configurations utilizing encryption, and device hardening measures for systems as part of cybersecurity data analysis architectures.
• Provides leadership support role across various teams including project managers for planning and scheduling, systems engineers to identify requirements, architects to develop solutions to meet user requirements and security policies, coordination/integration of system features with software developers and internal/external customers, and operations to identify and resolve production network issues while maintaining high availability of platform services.
• Performs testing of developed code and platforms, design and review of system test plans, implementation of automated test and installation scripts, and execution of System Test (ST), User Acceptance Test (UAT), and Operations Readiness Test (ORT) for successfully managing production deployments.
• Leads the design, development, and execution of test automation across the team for performing code verification of software applications and feature functionality according to input specifications and analyst requirements.
• Provides strategic direction for the test design execution and incorporates traffic simulators with attack replay scenarios for verification of data processing, generation of custom metadata, and application of cybersecurity algorithms as part of repeatable automated processes.
• Performs extensive analysis and comparisons of processed protocol packets and generated metadata output as part of enhanced validation methods to ensure data integrity as required for analyst investigations.
• Demonstrates and leverages extensive knowledge of testing design, approach, and analysis principles to easily identify and resolve defects early in the test cycle for ensuring delivery of high-quality software applications meeting security analyst needs.
• Reviews and provides recommendations to enhance application quality including methods to reduce and resolve security vulnerabilities.
• Documents test case methods and procedures maintaining across releases to guarantee thorough understanding of feature functionality and allow re-use for consistency in verification of results.
• Works closely with Network Operations and Customer Support teams on production applications and services to support software release deployments, incorporate key operational procedures, develop/present training overview sessions, and troubleshoot/resolve complex network and customer related issues.
• Develops and integrates automation in processes for installations and execution of maintenance procedures to minimize system downtime and reduce configuration errors for continued successful operation of the platform.
• Ensures security compliance as part of configuration management and patching support for vulnerability protection.
• Applies best practices and incorporates new concepts for advancing/improving existing methods and procedures.
• Mentors team members on establishing processes/procedures and gives guidance on secure network architecture design and test strategy from proof-of-concept phase to production deployment.
• Supports the design/prototyping of platforms and cybersecurity applications for future technology strategies for large-scale distributed network architectures, identifying opportunities for greater cost effectiveness while improving overall system processing capability and efficiency.
Required Skills:
• Demonstrates strong analysis and troubleshooting skills.
• Demonstrates excellent leadership skills involving team interaction, communication, documentation, and complex problem-solving ability.
• Independent and self-directed with a solutions-oriented focus.
• Collaborator within the organization to meet business objectives.
• Preferred education is a Bachelor or Master of Science degree in the field of Computers, Software, Engineering, or Cybersecurity. Security certifications also preferred.
Technical skills and background include:
• Detailed knowledge of UNIX/Linux systems.
• Detailed knowledge of system design and test/evaluation principles.
• Detailed knowledge of network protocols (IP/TCP/UDP/ICMP/DNS/SIP/Mobility GTP/PFCP).
• Detailed knowledge of programming with shell/AWK/Python/Perl.
• Detailed knowledge of relational databases and Hadoop preferred.
• Application of security policies, traffic filtering/forwarding techniques, intrusion detection, device hardening and data encryption (transit and at-rest).
• Ability to perform traffic analysis, investigation, and troubleshooting for security related events.
• Detailed knowledge of multi-vendor devices such as servers, routers, switches, firewalls, and packet monitoring/inspection as part of a secure network architecture.
• Detailed knowledge of IP/Mobility data flow and session-based system transactions.
• Detailed knowledge of “Big Data” platforms and large-scale, distributed network security architectures.
• Detailed knowledge in the design and implementation of network security monitoring services, automation, threat analysis and detection, and packet analysis tools.
• Knowledge of Agile processes.
Supervisory: No
Our Principal Cybersecurity earns between $141,300-$211,900 USD Annual Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.
Joining our team comes with amazing perks and benefits:
- Medical/Dental/Vision coverage
- 401(k) plan
- Tuition reimbursement program
- Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
- Paid Parental Leave
- Paid Caregiver Leave
- Additional sick leave beyond what state and local law require may be available but is unprotected
- Adoption Reimbursement
- Disability Benefits (short term and long term)
- Life and Accidental Death Insurance
- Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
- Employee Assistance Programs (EAP)
- Extensive employee wellness programs
- Employee discounts up to 50% off on eligible AT&T mobility plans and accessories,
- AT&T internet (and fiber where available) and AT&T phone.
#LI-Onsite – Full-time office role-
Ready to join our team? Apply today
Weekly Hours:
40Time Type:
RegularLocation:
USA:NC:Charlotte / Research Dr - Dat:9139 Research DrSalary Range:
$141,300.00 - $211,900.00It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.
Job ID R-80069 Date posted 08/25/2025
Benefits
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- Paid Time Off
- Tuition Assistance
- Insurance Options
- Discounts
- Training & Development
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