The Manager, Indirect Tax Technology serves as a core contributor to the Tax Operations & Solutions Team (TOAST), T-Mobile's Indirect Tax technology and operations function. The role supports configuration and administration of Vertex O Series and Communications Tax products integrated with Oracle Fusion and Amdocs billing platforms. It drives end-to-end enterprise project lifecycle delivery - from tax impact assessment and business requirements through UAT and post-production validation. The role also provides analytical support enabling tax decision validation, troubleshooting, root cause analysis, anomaly detection, and enterprise operational support. Success is measured by platform stability, project delivery quality, knowledge continuity, and the team's ability to scale through T-Mobile's ongoing tax technology transformation. Job Responsibilities: • Support configuration and maintenance of Vertex O Series and Communications Tax products, including imposition ID analysis, jurisdiction management, and transaction-level tax decision validation across Oracle Fusion and Amdocs billing platform integrations. • Deliver enterprise project lifecycle activities including tax impact assessment, business requirements documentation, UAT coordination, and post-production validation for small to medium initiatives. • Document Vertex configurations, integration decision history, and project lifecycle processes to build durable institutional knowledge; contribute to TOAST transformation roadmap execution and organizational resiliency planning. • Also responsible for other duties/projects as assigned by business management as needed. Education: • 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 Computer Science, Engineering or a related field. (Required) Work Experience: • 5-8 years Experience in indirect tax (sales and use tax, gross receipts, communications services tax) with hands-on work in tax technology systems. (Required) • 5-8 years Hands-on experience with a tax determination engine (Vertex O Series strongly preferred; Avalara or similar considered), including configuration, administration, and transaction-level troubleshooting (Required) • 3-5 years Active participation in enterprise project delivery including business requirements, UAT, and post-production validation in a cross-functional environment. (Required) • 3-5 years Proficiency in SQL and experience working in cloud data environments (Snowflake, Databricks, or equivalent). (Preferred) • Experience with Oracle Fusion ERP or Amdocs billing platforms in a tax technology context. (Preferred) • Background in Big 4 indirect tax technology consulting or a multi-platform enterprise tax technology role. (Preferred) • Experience supporting M&A indirect tax due diligence or system integration projects. (Preferred) • Experience in a formal leadership or team coordination role. (Preferred) Knowledge, Skills and Abilities: • Indirect Tax Domain Knowledge (Sales/Use, Gross Receipts, CST, 911/988, USF) (Required) • Vertex O Series - Configuration and Administration (Preferred) • Tax Engine Troubleshooting and Transaction-Level Analysis (Preferred) • Business Requirements Analysis (Required) • Project Management (Required) • Stakeholder Management (Required) • Strategic Thinking (Preferred) • Communication (written and verbal) (Required) • SQL and Cloud Data Environments (Snowflake/ Databricks) (Preferred) • Process Documentation and Knowledge Management (Required) • Business Acumen (Required) • Agile Methodology (Preferred) • Oracle Fusion ERP - Tax Integration (Preferred) • Amdocs Billing Platform - Tax Integration (Preferred) • Exemption Certificate Management (Preferred) • M&A Tax Due Diligence (Preferred) • Working Independently (Required) • Multitasking / Prioritization (Required) License/Certification: CMI (Certified Member of the Institute for Professionals in Taxation) (Preferred) • At least 18 years of age • Legally authorized to work in the United States Travel: Travel Required (Yes/No): Yes DOT Regulated: DOT Regulated Position (Yes/No): No Safety Sensitive Position (Yes/No): No Total Target Cash Earnings Opportunity: $109,595 - $197,685 National Base Pay Range: $95,300 - $171,900 The Total Target Cash Earnings Opportunity represents the expected total cash compensation for this role at target performance, combining base salary and annual incentive opportunity. Actual earnings may be higher or lower depending on individual performance and overall company results. The base pay range reflects the compensation component of this opportunity. The candidate's actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay will vary within this range. To find the pay range for this role based on hiring location, https://paylookup.t-mobile.com/paylookup?reqID=REQ371228¶dox=1 At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Corporate employees are eligible for a year-end bonus based on individual and/or company 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. The incentive component included in the Total Target Cash Earnings Opportunity reflects target performance. Actual earnings included in the Total Target Cash Earnings Opportunity reflect target performance; actual payouts may vary. At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. 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. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile's amazing benefits, check out www.t-mobilebenefits.com. Never stop growing! As part of the T-Mobile team, you know the Un-carrier doesn't have a corporate ladder-it's more like a jungle gym of possibilities! We love helping our employees grow in their careers, because it's that shared drive to aim high that drives our business and our culture forward. By applying for this career opportunity, you're living our values while investing in your career growth-and we applaud it. You're unstoppable!