Senior Analyst, Finance -- T-Ads Headcount

T-Mobile USA•Bellevue, WA

7h•Onsite

About The Position

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That’s how we’re UNSTOPPABLE for our employees! We’re looking for a detail-oriented, analytically strong Senior Analyst, Finance to serve as the central headcount finance resource for T-Ads. This role supports the full T-Ads organization and reports directly to the Senior Director, T-Ads. The primary remit is owning the end-to-end headcount forecast — from bottoms-up model builds and scenario planning through to actuals tracking, variance analysis, and consolidated reporting for senior leadership. This role will work cross-functionally with Finance Business Partners, HR, and business leaders across all T-Ads business units to ensure headcount data is accurate, complete, and actionable. The ideal candidate is highly organized, comfortable managing large datasets across a complex organization, and able to translate headcount data into clear narratives for executive audiences.

Requirements

Bachelor’s degree in Finance, Accounting, Economics, or related field; MBA or CPA a plus.
4+ years of experience in financial planning & analysis (FP&A), with demonstrated experience in headcount forecasting, workforce planning, or people cost analysis.
Hands-on experience with Oracle Workforce Planning required; broader familiarity with HR and workforce planning systems (e.g., Workday, Oracle HCM) strongly preferred.
Advanced Excel and financial modeling skills; experience with ERP and planning tools (e.g., SAP, Oracle).
Proficiency in building executive-ready reporting and dashboards; experience with Power BI, Tableau, or equivalent BI tools a plus.
Strong communication skills; able to translate data-heavy insights into executive-ready narratives.
Proven cross-functional collaborator in fast-paced, dynamic environments.
Comfortable building structure from scratch and creating clarity out of chaos.
Can operate at both the strategic “what should we measure?” level and the technical “how do we build it?” level.
Exceptionally organized and detail-oriented — able to manage large, complex datasets across a multi-business-unit organization without losing accuracy or timeliness.
Confident business partner who can influence without authority and drive alignment across teams.
Must be comfortable working with teams based in other locations, including international (UK & Australia).
Some flexibility will be required to collaborate effectively with time-zone differences.
At least 18 years of age
Legally authorized to work in the United States

Nice To Haves

MBA or CPA a plus.
Broader familiarity with HR and workforce planning systems (e.g., Workday, Oracle HCM) strongly preferred.
Experience with Power BI, Tableau, or equivalent BI tools a plus.

Responsibilities

Own the end-to-end headcount forecast for T-Ads, including bottoms-up model builds, scenario planning, and ongoing maintenance across all business units and planning cycles (Budget, Forecast, LRP).
Load and manage headcount changes in Oracle’s Workforce Planning on a monthly basis to ensure T-Ads is compliant with company-wide consolidations and scenario planning for Frontline/Support FTE.
Track headcount actuals vs. plan on a monthly basis, producing clear variance analysis and commentary that explains drivers and flags risks to Finance leadership.
Own consolidated headcount reporting for T-Ads leadership, producing monthly and quarterly HC packages for the Senior Director and Finance Leadership that are accurate, timely, and executive-ready.
Partner with HR and business leaders across T-Ads to manage headcount approvals, open requisition tracking, and position-level data — ensuring alignment between people plans and financial forecasts.
Maintain headcount data integrity across planning systems, ensuring consistency between HC actuals, open reqs, forecasts, and financial plans at all times.
Serve as the primary point of contact for headcount-related questions across T-Ads Finance, acting as a connective resource between Finance Business Partners, HR, and the Senior Director.
Build and maintain HC dashboards and reporting tools that provide real-time visibility into headcount trends, open reqs, and variances for T-Ads Finance and business leadership.
Support Risks & Opportunities (R&O) management related to headcount, identifying variances, modeling scenarios, and providing recommendations to Finance leadership.
Align with Finance Business Partners across all T-Ads business units to consolidate HC inputs and ensure accuracy of submissions for corporate deliverables including Forecast, Budget, and LRP cycles.
Additional analysis and ad hoc support as required for internal FP&A deliverables, including Investor Day preparation and Scenario Planning.