Principal Engineer, Cybersecurity

Principal Engineer, Cybersecurity role in Frisco, TX (onsite) focused on securing mobile and IoT devices through testing, assessments, forensics, and security engineering leadership.

Responsibilities

• Lead end-to-end device security assessments and penetration testing across IoT, CPEs, hotspots, trackers, routers, and modems to identify and mitigate risks
• Develop proactive device security measures, solutions, and strategies to improve security posture across multiple technologies
• Collaborate with device engineering teams and OEMs to integrate security practices into hardware and software development, including deployment processes
• Perform digital forensics on compromised or suspect devices to determine root cause, scope, attacker methodology, and coordinate with threat response teams
• Drive strategic security initiatives to protect against cyber threats and support compliance with security standards
• Define and evolve T-Mobile device security assessment methodology, requirements, standards, and tooling roadmap
• Mentor and upskill junior and mid-level security engineers on device security techniques and best practices
• Complete other duties and projects as assigned by business management

Requirements

• Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience (Required)
• Acceptable areas of study include Computer Science or Information Technology (Required)
• 3-5 years hands-on experience conducting device security assessments and testing on IoT devices, routers, modems, or similar embedded platforms (Required)
• 3-5 years proficiency using security tools including Ghidra, IDA Pro, dotPeek, Burpsuite, Nmap, hashcat, OllyDbg (and more listed tools) (Required)
• 3-5 years hands-on knowledge of 4G LTE and 5G architecture (RAN and Core), including cloud environments and containerized applications
• 3-5 years proficient experience in Python, C++, C#, PHP, and shell scripting, including experience building scalable systems and automating workflows; familiarity with AI tools such as ChatGPT and Claude (Preferred)
• 7-10 years conducting security assessments and vulnerability testing to identify and mitigate risks in digital environments (Preferred)
• 7-10 years developing and implementing cybersecurity measures across mobile and IoT devices, cloud services, and network technologies (Preferred)
• 7-10 years leading and collaborating with engineering teams to enhance security posture and strategic cybersecurity initiatives (Preferred)
• Artificial Intelligence (AI) (Required)
• Leadership to guide and mentor teams (Required)
• Collaboration with cross-functional teams (Required)
• Problem Solving to troubleshoot and resolve complex security issues (Required)
• Strategic Thinking to develop long-term security strategies aligned to business objectives (Required)
• Cybersecurity (Required)
• Escalation Management (Required)
• Security Automation (Required)
• Security Engineering (Required)
• Security Incident Management (Required)
• Stakeholder Management (Required)
• Threat Modeling (Required)
• At least 18 years of age
• Legally authorized to work in the United States

Technologies

• Ghidra
• IDA Pro
• dotPeek
• Burpsuite
• Nmap
• hashcat
• OllyDbg
• Python
• C++
• C#
• PHP
• Shell scripting
• ChatGPT
• Claude
• 4G LTE
• 5G
• RAN
• Core
• Cloud environments
• Containerized applications

Benefits

• Competitive base salary and compensation package
• Annual stock grant
• Employee stock purchase plan
• 401(k)
• Access to free, year-round money coaches
• Medical, dental and vision insurance
• Flexible spending account
• Paid time off
• Up to 12 paid holidays
• Paid parental and family leave
• Family building benefits
• Back-up care
• Enhanced family support
• Childcare subsidy
• Tuition assistance
• College coaching
• Short- and long-term disability
• Voluntary AD&D coverage
• Voluntary accident coverage
• Voluntary life insurance
• Voluntary disability insurance
• Voluntary long-term care insurance
• Mobile service & home internet discounts
• Pet insurance
• Access to commuter and transit programs
• Annual bonus or periodic sales incentive or bonus (eligible employees)
• Year-end bonus (corporate employees)

Licenses and Certifications

• CISSP (Preferred)
• CISM (Preferred)
• CRISC (Preferred)

Location

• Frisco, TX (onsite)

Compensation Range

• National Base Pay Range: USD 127,800 - 230,700
• Total Target Cash Earnings Opportunity: USD 153,360 - 276,840
• Frisco, TX: USD 147,700 - 199,900
• Overland Park, KS: USD 139,200 - 188,400
• Bellevue, WA: USD 166,300 - 224,900

Travel

• Travel Required: No

DOT Regulated

• DOT Regulated Position: No
• Safety Sensitive Position: No