Sr Business Analyst, Fiber Market & Regional

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T-Fiber is growing fast. As our Sr. Analyst, Business Intelligence, you will turn raw market data into a clear, honest story about how we’re performing and, more importantly, why. This isn’t a reporting-only role. You’ll dig into penetration rates, add rates, churn, preorder cancel rates, and competitive dynamics to surface the insights that drive real decisions. You’ll report to the Sr.

Commercial Marketing Manager and work closely with Fiber business leaders. You’ll own the data, build the analysis, and prepare the executive-ready presentation — your manager or a business leader will deliver it, but the clarity and credibility of that story starts with you. T-Fiber is T-Mobile’s push into fixed broadband, and we’re moving fast. You won’t be maintaining a legacy reporting stack.

You’ll be building the analytical foundation of a growing business, working with data that directly shapes how we compete across markets. If you want ownership, visibility, and the chance to see your work influence real decisions, this is the role.

• Market Performance Reporting
  • Build and maintain recurring performance reports covering penetration, add rate, churn rate, and preorder cancel rate across all active markets
  • Track performance vs. targets and clearly communicate where we’re winning, where we’re not, and what’s driving the gap
  • Prepare clean, executive-ready readouts that translate complex data into a simple narrative leaders can act on
  • Maintain and evolve dashboards that give stakeholders real-time visibility into market health
• Analysis and Insight Generation
  • Go beyond the numbers—layer in demographic, socioeconomic, and competitive data to explain the why behind performance trends
  • Identify underperforming markets early and provide context on root causes (competitive pressure, build maturity, pricing, demographics, etc.)
  • Run ad hoc analysis as business questions emerge, including A/B testing, market segmentation, and opportunity sizing
  • Collaborate with business partners to validate findings and pressure-test assumptions before they reach leadership
• Tools and Data Infrastructure
  • Extract, transform, and analyze data from internal sources using SQL, Power BI, Tableau, Amazon Quick Sight, and Excel
  • Build performance models and scenario analysis using Excel — pivot tables, trend modeling, and large dataset manipulation
  • Develop and standardize reporting templates that the team can rely on and replicate
  • Engage early on new initiatives to define data and reporting requirements before systems are built
  • Also responsible for other duties/projects as assigned by business management as needed
• Knowledge, Skills, And Abilities
  • Prioritization and organization: ability to manage multiple projects simultaneously and deliver under tight timelines in a fast-paced environment
  • Independent execution: self-direct, identify what needs to get done, and do it
  • Data analysis and interpretation: strong analytical mindset with ability to interpret trends across penetration, conversion, churn, and subscriber growth drivers
  • Business problem identification: strong business acumen and understanding of go-to-market performance levers
  • Communication across levels: translate complex datasets into clear, compelling executive narratives
  • Excel: pivot tables, large dataset modeling, performance trending
  • Power BI / Tableau / Quick Sight: proficiency in at least two
  • Performance modeling: building models that answer “what happens if” questions around market performance

• Bachelor’s degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience; acceptable areas include Business, Statistics, Economics, Data Analytics or similar
• 4 years of data analysis, business…