Sr. Manager Finance - Ad Platform

About the role

The Sr. Manager Finance - Ad Platform role is part of the FP&A organization at T-Mobile, where we invest in our employees. Total Rewards includes a competitive base salary, a variety of wealth-building opportunities, and access to financial coaching.

Responsibilities

• Lead and develop a geographically distributed team of Finance Business Partners supporting T-Mobile Ad Platforms, ensuring consistent and scalable performance management deliverables.
• Oversee consolidated P&L management across all Ad Platform country and product P&Ls, including Budgeting, Forecasting, Long Range Planning, and Month End Close.
• Align with the T-Ads consolidation FP&A Team on corporate deliverable inputs including R&O management, Forecast, Budgets and LRP’s.
• Partner with leaders across Business and Operations to align on metrics, assumptions, and strategic decision drivers.
• Deliver monthly and quarterly performance reviews including spend analysis, KPI tracking, and insights for executive decision-making, including presentation to executive leadership team members.
• Serve as senior review and approval point for Trade Deal structures; partner with Commercial Teams on complex deals, reviewing client profitability models, approving deal terms, and ensuring alignment with financial targets.
• Own the KPI framework and performance measurement approach across the Ad Platform portfolio, ensuring consistency across all business partner reporting including Take Rates, Media Mix, Customer Trends, and Market Insights.
• Set the strategic pricing framework across Ad Platforms; own commercial approvals and lead pricing, revenue, and market expansion initiatives for relevant products and geographies.
• Provide governance oversight for Quota Planning and incentive compensation processes, partnering with P&L Owners and Sales Leads to ensure data-driven quota setting across all markets.
• Partner with Ad Platform business leaders to align approval process for headcount management.
• Continued involvement & ability to influence the integration milestones for Blis and Vistar operations in so far as impact FP&A people, systems, tools & processes.

Qualifications

• Bachelor’s degree in Finance, Accounting, Economics, or related field; MBA or CPA a plus.
• 10+ years of experience with 5+ years in financial planning & analysis (FP&A), preferably supporting Advertising, Media, or Marketing organizations.
• Proven experience leading and developing geographically distributed finance teams.
• Strong communication skills; able to translate data-heavy insights into executive-ready narratives.
• Proven cross-functional collaborator in fast-paced, dynamic environments.
• Ability to scenario plan & align with multiple parties on optimal path forward related to people, process and systems.
• Experience with Trade Deal structuring, pricing frameworks, or commercial finance in an Advertising or Media business.
• Advanced Excel and financial modeling skills; experience with ERP and planning tools (e.g., SAP, Oracle).
• Demonstrated ability to build reporting or measurement infrastructure, not just maintain existing tools.

The Successful Candidate Will Possess the Following Traits

• 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.
• Detail-oriented with strong process management skills; able to manage multiple priorities and deadlines in a fast-paced environment.
• 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.