Sr Systems Architect- Billing Platform

T-Mobile • Frisco, TX

3d

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! 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!

Requirements

• Bachelor's Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience (Required)
• Acceptable areas of study include Technology (Required)
• 4-7+ years Experience with enterprise level database systems such as Teradata, Oracle, SQL Server or others, emphasis on Teradata. (Required)
• Database (Required)
• Data Modeling (Required)
• SQL (Required)
• Customer Service Management (Required)
• Problem Solving (Required)
• Microsoft Office (Required)
• Communication (Required)
• Information Architecture (Required)
• Experience with Tuxedo-based architectures
• Understanding of Oracle databases, including: Ability to read, understand, and guide changes in legacy codebases
• Architecture & Integration Skills: Enterprise system architecture and design patterns Batch, near-real-time, and asynchronous processing models Service-oriented and integration-driven architectures Data consistency, reconciliation, and audit control patterns
• Leadership & Collaboration Skills: Proven ability to work technical direction across multiple teams Strong communication skills with both technical and non-technical stakeholders Ability to make high-impact architectural decisions under ambiguity Mentorship mindset with focus on building long-term internal capability

Nice To Haves

• Experience with telecom billing platforms
• Experience supporting modernization or transformation of legacy systems
• Familiarity with cloud or hybrid architectures (for future-state planning)

Responsibilities

• Develop and enforce architectural guardrails to ensure compliance and support reliable delivery of technology solutions
• Collaborate with business and technical teams to translate requirements into optimized technology solutions
• Create and present high-level solution designs and technical documentation to guide development and leadership decisions
• Mentor and coach team members on best practices to strengthen technical capabilities and promote knowledge sharing
• Own the evaluation and implementation of infrastructure, processes, and tools to evolve technology services
• Support solution implementation by coordinating with development, infrastructure, testing, and support teams
• Also responsible for other duties/projects as assigned by business management as needed
• Provide technical direction to solution architects, design analysts, developers, and testers
• Review and approve high-impact designs and complex system changes
• Guide teams working with ProC, C, C++, Java, Tuxedo, and Oracle technologies
• Ensure architectural decisions support performance, scalability, resiliency, and auditability
• Partner with Product, Billing Operations, Finance, Revenue Assurance, and Compliance teams
• Translate complex billing and pricing requirements into architecturally sound solutions
• Ensure systems meet financial accuracy, regulatory, and audit requirements
• Support billing cycle readiness and risk assessments

Benefits

• 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.
• Employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role.
• Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee’s eligible earnings in the prior year.
• Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance.
• We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually - 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, and voluntary long-term care insurance.
• eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level