Manager - Product & Engineering - Public Key Infrastructure

T-Mobile • Frisco, TX

84d • $134,300 - $242,200

About The Position

The Manager, Product & Engineering – PKI leads the team responsible for designing, building, and evolving enterprise Public Key Infrastructure (PKI) services, including certificate lifecycle management, cryptographic platforms, and integrations with 4G/5G networks and cloud services. This leader blends product strategy, engineering execution, and operational reliability, ensuring PKI remains a foundational enabler of identity, trust, and secure communications across T-Mobile’s enterprise and nationwide network. You will drive modernization of PKI architecture for hybrid and multi-cloud environments, partner with vendors such as Keyfactor and Garantir, and expand automation and self-service capabilities. This role is critical to supporting T-Mobile’s zero-trust security model, 5G rollout, and enterprise cloud adoption.

Requirements

• Bachelor’s Degree in Computer Science, Engineering, IT, or equivalent experience.
• 7+ years of experience in security infrastructure, PKI, or cryptographic engineering, with at least 3 years in a leadership/people manager role.
• Proven track record of defining product roadmaps and delivering security infrastructure at enterprise scale.
• Deep knowledge of PKI protocols (X.509, OCSP, CRL), HSMs, and certificate lifecycle management.
• Experience with Keyfactor, Garantir, or equivalent PKI platforms.
• Strong understanding of cloud-native PKI capabilities (AWS, Azure, GCP).
• Agile product management expertise — backlog grooming, sprint planning, roadmap delivery.
• Strong leadership, communication, and stakeholder management skills.
• Ability to balance strategic thinking with hands-on technical and operational oversight.

Nice To Haves

• Familiarity with telecom, 4G/5G networks, and zero-trust security models.
• Certified Scrum Master (CSM) Scrum Product Owner Certification (CSPO).
• CISSP, CISM, or cloud/PKI-related certifications.
• Agile Certified Practitioner (PMI-ACP).

Responsibilities

• Lead, mentor, and grow a high-performing team of PKI engineers and product managers.
• Define and own the PKI product strategy, roadmap, and lifecycle, aligning with enterprise security and network initiatives.
• Drive engineering excellence in building and scaling PKI services, including certificate lifecycle automation and developer adoption.
• Oversee vendor engagement and integration, ensuring effective delivery of features from partners like Keyfactor SaaS and Garantir Enterprise.
• Partner with cross-functional stakeholders (Security Architecture, Network Engineering, Application Development, Cloud Engineering, Compliance) to ensure PKI services meet business and technical needs.
• Balance product management and operational leadership — from roadmap planning and stakeholder alignment to incident response and certificate health.
• Establish and mature metrics/reporting for PKI product health, adoption, compliance, and operational reliability.
• Promote a culture of innovation, collaboration, and technical excellence, with a focus on scalability and security.

Benefits

• Medical, dental and vision insurance.
• Flexible spending account.
• 401(k).
• Employee stock grants.
• Employee stock purchase plan.
• Paid time off and 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Manager
• Education Level: Bachelor's degree
• Number of Employees: 11-50 employees