Sr Commercial Marketing Manager: Offer Planning, Strategy & Modeling

About the position

Join the Future of Connectivity with T-Mobile Fiber. Are you ready to shape the future of high-speed connectivity? T-Mobile is expanding its game-changing Fiber services, and we're looking for a Senior Commercial Marketing Manager to help lead the charge. This is not your typical marketing role - this is a high-impact, strategy-first position that sits at the intersection of growth innovation and cutting-edge fiber technology. You'll be a key driver in developing and optimizing the offer strategy for our fiber portfolio, identifying new market opportunities, building robust business cases, and shaping go-to-market execution in a fast-paced, high-growth environment. This is a hybrid work environment with three days in the office expected.

Responsibilities

• Lead offer planning and strategy for T-Mobile Fiber, developing pricing, promotions, and product positioning that align with business goals.
• Partner across cross-functional teams - including Market Intelligence, Product, Engineering, and Marketing - to shape and execute a cohesive growth strategy.
• Dive into data to uncover insights that drive sustainable subscriber and revenue growth.
• Build detailed business cases (MRC, CLV, CapEx, tenure) to support new initiatives and optimize existing products.
• Present strategic recommendations to senior leadership, backed by clear rationale and forward-looking modeling.
• Align with channel leadership to ensure successful execution across all sales channels and market segments.
• Be a thought leader in product roadmap development, offer innovation, and customer experience strategy.

Requirements

• 7+ years of experience in marketing or strategic planning, ideally within tech, telecom, CPG, or related industries.
• Strong analytical background - you're comfortable building business models and making data-informed decisions.
• Proven experience in offer creation, pricing strategy, and cross-functional project leadership.
• Ability to thrive in a fast-paced, constantly evolving environment - you're proactive, adaptable, and resourceful.
• Bachelor's Degree required; Master's or MBA strongly preferred.

Nice-to-haves

• Experience in launching or managing subscription-based services.
• Background in fiber, broadband, or telecom industries.
• A passion for customer-centric innovation.

Benefits

• Medical, dental and vision insurance.
• Flexible spending account.
• 401(k).
• Employee stock grants.
• Employee stock purchase plan.
• Paid time off and up to 12 paid holidays.
• Paid parental and family leave.
• Family building benefits.
• Back-up care.
• Enhanced family support.
• Childcare subsidy.
• Tuition assistance.
• College coaching.
• Short- and long-term disability.
• Voluntary AD&D coverage.
• Voluntary accident coverage.
• Voluntary life insurance.
• Voluntary disability insurance.
• Voluntary long-term care insurance.
• Mobile service & home internet discounts.
• Pet insurance.
• Access to commuter and transit programs.