Principal Engineer, Cybersecurity - Data Loss Prevention

About the role

This role is critical to protecting T-Mobile’s digital assets by designing, implementing, and strengthening data protection capabilities across software, systems, cloud platforms, endpoints, and infrastructure. The role requires a strong understanding of how data is created, classified, managed, stored, accessed, transmitted, and retained across the enterprise, as well as the ability to identify risk and recommend practical remediation strategies. The individual will conduct security assessments, evaluate data protection gaps, and partner with engineering, technology, and business teams to implement scalable controls across mobile devices, cloud services, networks, and enterprise applications. Experience with Microsoft Purview is required, along with broader knowledge of leading data loss prevention, data security, and cybersecurity technologies. The ideal candidate will also bring insight into emerging AI security practices, including risks associated with sensitive data used by generative AI and machine learning applications, and provide informed recommendations on tools, controls, and operating practices that support T-Mobile’s evolving security journey. Success will be measured by the effectiveness of security controls, reduction of data exposure and vulnerabilities, and the ability to drive timely, sustainable remediation of data protection risks.

Responsibilities

• Conducts security assessments and testing to identify and mitigate risks within current security tools, current AI, and emerging AI.
• Architects proactive security measures and strategies to enhance the security posture across various technologies including Microsoft Purview, Zscaler, and Island Browser.
• Collaborates with engineering teams to integrate security practices into data posture, data security, and implementation guidelines.
• Serves as an authority in cybersecurity, providing guidance and leadership to various business units.
• Drives strategic security initiatives to protect against cyber threats and ensure compliance with security standards.
• Evaluates new technologies and processes for potential security vulnerabilities and recommends corrective actions.
• Performs other duties/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.

• 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 various technologies including mobile and IoT devices, cloud services, and network technologies (Preferred).
• 7-10 years leading and collaborating with engineering teams to enhance security postures and strategic cybersecurity initiatives (Preferred).
• U.S. citizenship is required for this role.
• At least 18 years of age.
• Legally authorized to work in the United States.

Skills

• Artificial Intelligence (AI)
• Cybersecurity
• Escalation Management
• Security Automation
• Security Engineering
• Security Incident Management
• Stakeholder Management
• Threat Modeling

Qualifications

• Certified Information Systems Security Professional (CISSP) (Preferred)
• Certified Information Security Manager (CISM) (Preferred)
• Certified in Risk & Informational Systems Control (CRISC) (Preferred)

Pay

The base pay range is $127,800 - $230,700. The successful candidate’s actual pay will be based on various factors, such as work location, qualifications, and experience. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance, set at a percentage of the employee’s eligible earnings in the prior year. This role has a corporate bonus target of 20%.

Benefits

Full and part-time employees have access to the same benefits when eligible, including:

• Medical, dental, and vision insurance
• Flexible spending account
• 401(k) with company match
• Employee stock grants and employee stock purchase plan
• Paid time off and up to 12 paid holidays (about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually)
• Paid parental and family leave
• Family building benefits
• Back-up care and enhanced family support
• Childcare subsidy
• Tuition assistance and college coaching
• Short- and long-term disability
• Voluntary AD&D, accident, life, disability, and long-term care insurance
• Mobile service & home internet discounts
• Pet insurance
• Commuter and transit programs
• Free, year-round money coaches