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Principal Cybersecurity Network Engineer - Critical Infrastructure at ATT

Dallas, Texas, USA -

Full Time

Start Date

Immediate

Expiry Date

24 Nov, 25

Salary

237400.0

Posted On

24 Aug, 25

Experience

3 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Security Controls, Mitigation Strategies, Creativity, Fortinet, Cisco, Oscp, Network Traffic Analysis, Teams, Data Collection, Python, Security Tools, Security, Automation, Security Operations, Computer Science, Arista, Threat Modeling, Juniper, Knowledge Sharing, Scripting

Industry

Information Technology/IT

Description

Responsibilities

Perform penetration testing and pressure testing on pre-production network infrastructure and document remediation required for production deployment
Research adversarial tactics, techniques and procedures relevant to critical infrastructure in use or in consideration for use
Lead and design adversary simulation exercises and targeted penetration testing to certify pre-production network infrastructure across multi-vendor network environments and telecom critical infrastructure
Identify, exploit, and weaponize network vulnerabilities such as BGP hijacking, ACL bypasses, segmentation flaws, and misconfigurations in routers, firewalls, and network segmentation for pre-production environments.
Leverage Python scripting to automate ongoing security testing on various network elements
Mentor and develop offensive security mindsets with the current Network Security Blue Team members
Collaborate closely with blue teams, SOC, and incident response teams to provide actionable intelligence, improve detection capabilities, and refine defense mechanisms.
Engage with internal stakeholders and executive leadership to communicate findings, risks, and strategic recommendations based on Network Element vulnerability assessments