Sr Systems Architect- Billing Platform

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! Are you ready to join the Un-carrier movement? T-Mobile is bringing ownership of its legacy Postpaid Billing platform in-house. This platform is a mission-critical, revenue-generating system supporting millions of postpaid customers and complex telecom billing scenarios. As a Sr Systems Architect – Post Paid Billing you will assist with transition from vendor dependency to internal ownership, and establish a sustainable architectural foundation that ensures accuracy, scalability, stability, and future modernization. This is a hands-on architectural role requiring deep legacy systems expertise, strong billing domain knowledge, and the ability to guide large, cross-functional engineering teams through high-risk transformation. This role is critical for designing and building enterprise-class business intelligence solutions that support organizational decision-making. It involves architecting, developing, and implementing technology strategies in collaboration with architecture and development teams. The role requires influencing stakeholders and ensuring compliance with architectural standards across multiple technology domains. Success is measured by the ability to deliver scalable solutions that meet business requirements and align with enterprise architecture principles. The work impacts the organization by enabling reliable, data-driven insights that enhance business operations and customer experiences. We pride ourselves on encouraging a culture of innovation, advocating for agile methodologies, and promoting transparency in all we do. Join us and embody the spirit of being 'Un-carrier and make a tangible impact!