Michael Pfeifer

Lead Large-Scale Consumer Product Initiatives to Bolster Customer Engagement, Loyalty, and Retention. Guide public-facing mobile, web, and loyalty products serving millions of customers. Leverage deep technical understanding to partner with engineering, User Experience (UX) collaboration to partner with marketing, legal, accessibility, and leadership stakeholders to deliver solutions that balance customer needs, business goals, and technical realities.

Spearhead complex initiatives holistically, encompassing all aspects of program, user-facing and internal, while coordinating cross-functional Agile teams to execute at scale.

Product Manager at T-MOBILE US, INC. (2020-01 – 2026-12)

Provided strategic direction for T-Mobile Tuesdays, a nationally scaled customer engagement platform with 40M+ offer redemptions. Partnered with engineering, UX, marketing, business stakeholders to deliver features through live, bi-weekly release cadence. Balanced tradeoffs between customer experience, technical constraints, marketing commitments, and partner requirements to dictate product decisions on scope, prioritization, and release timelines.

Served as primary product Subject Matter Expert (SME) with focus on customer-centric decision-making, clear communication, and effective alignment of diverse business priorities.

• Spearheaded development and launch of T-Mobile Tuesdays within T-Life, integrating flagship customer rewards experience into T-Mobile's super app and enhancing engagement through a unified digital customer experience.
• Led technical modernization of T-Mobile Tuesdays application, leveraging SME expertise to improve response times by 30%+, optimize code quality, and support development of T-Life platform.
• Collaborated with major international corporations (Samsung, Apple, diverse global partners) to transform strategic business goals into customer engagement initiatives, contributing to program delivery of $1.4B rewards over 10 years.
• Managed and launched T-Mobile VISA feature for Tuesdays portion of T-Life, driving 30%+ of all customer credit card applications and expanding program involvement.
• Evaluated product risk for 26 releases annually to a live production environment, acting as ultimate decision-maker in weekly nationwide launches to upwards of 5M users.
• Owned operational execution of live consumer product from launch through production support, serving as primary escalation point during off-hours and overnight war rooms, coordinating rapid incident resolution across teams, and reducing customer-facing issues by 20%.

Product Owner at DENALI ADVANCED INTEGRATION (2018-01 – 2020-12)

Built deep expertise across quality assurance, product ownership, and software delivery for T-Mobile Tuesdays. Established program's initial development and release cadence through ownership of backlog refinement, requirements definition, release validation, and sprint planning. Acted as primary functional and product SME, provided continuity across multiple organizational and personnel transitions.

• Led product requirements, backlog prioritization, and cross-functional delivery efforts to integrate Sprint customers into T-Mobile Tuesdays during T-Mobile / Sprint merger, expanding program availability and enabling seamless access for millions of customers.
• Oversaw the end-to-end redevelopment of the T-Mobile Tuesdays mobile applications and website, collaborating with engineering and UX teams to replace legacy codebases with modernized platforms and user interfaces / experiences that improved usability, supported customer growth, and strengthened user engagement.
• Directed UI modernization initiative that delivered enhanced user experience and versatility enhancements while maintaining platform stability and production continuity, reducing operational staffing requirements by 26%.

Test Lead at DENALI ADVANCED INTEGRATION (2016-01 – 2018-12)

Tester at DENALI ADVANCED INTEGRATION (2015-01 – 2016-12)

Bachelor of Arts (BA) in Mathematics – University of Washington

Agile Methodology Training – T-Mobile

Scrum Training – T-Mobile