T-Mobile

Goal
I led UX for a central platform aimed at unifying all of T-Mobile‘s tools and systems into a single, cohesive experience, supporting enterprise-wide operations for approximately 90,000 employees. The project focused on streamlining access across fragmented systems and implementing AI-powered features including Glean‘s AI-driven search and genAI chat integrations.
Impact
Achieved a reduction in time-on-task by six minutes, contributing to as much as $50 million in savings through streamlined workflows, technology efficiencies, and reduced turnover.

Strategy & alignment
Aligned strategic direction across all organizational levels, from frontline managers to executives. Worked cross-functionally with product managers, researchers, and engineers to navigate the complexity of enterprise-wide system unification and secure buy-in throughout the organization.

Collaborated with research teams to create extensive research prototypes that facilitated usability testing and user research. Established clear learning goals with the research team and implemented iterative feedback loops to refine and validate designs throughout the development process.


Conducted comprehensive documentation of existing architecture, information structure, and templates to understand the full spectrum of UX journeys across multiple touchpoints. This enabled us to identify pain points, inconsistencies, and opportunities to streamline the experience across user types and personas.

Navigation
Global navigation empowered power users who rely on M-Pulse as their primary tool, while role-based navigation customization streamlined the experience for general corporate users by surfacing the most relevant content for their specific needs—without ever restricting access to other areas of the platform.


Templates
Restructured content around practical user needs to improve overall user experience. This included implementing intuitive on-page navigation, enhancing scannability and findability of information, and organizing content around specific use cases that aligned with how employees actually performed their daily tasks.


Resulting impact

The unified platform delivered significant organizational value, reducing time-on-task by up to 8 minutes per user interaction. This efficiency gain contributed to approximately $50 million in savings through streamlined workflows, technology efficiencies, and reduced employee turnover across T-Mobile‘s 90,000-person workforce.

Greg is an outstanding designer and leader, with purpose behind every design decision, and is passionate about having an impact. He not only elevates the user‘s experience but also boosts the entire team. He‘s an asset to any team.
Brian Rawls-McQuillan
Senior Manager, T-Mobile

Greg is a product manager‘s dream product designer. He is passionate about technology and sees the relationship between product and UX as foundational. In working with Greg I felt like I had a reliable teammate who helped me guide my stakeholders.
Stephanie Plesha
Technical Product Manager, T-Mobile