Principal Systems Architect

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!Job DescriptionT-Mobile for Business IT is seeking a seasoned Principal Solutions Architect to lead architecture strategy and execution for its B2B consumer-facing platforms. This role is critically important in enabling differentiated, secure, and scalable digital experiences for enterprise and federal customers across commerce, onboarding, account servicing, and compliance domains.This role is essential for designing scalable systems and software solutions that meet business and technical requirements on web platforms, with a focus on B2B customer-facing experiences. It involves defining and maintaining architecture and technology standards for applications, middleware, and databases across in-house and third-party solutions. The role provides guidance to project teams to ensure alignment to established standards and guidelines while enabling secure, scalable, and compliant digital experiences. Success is measured by the effective evaluation and recommendation of technologies aligned with organizational systems and goals. The work impacts the organization by enabling consistent, efficient, and innovative technology implementations that support enterprise and federal business objectives.Job ResponsibilitiesArchitect End-to-End B2B Experiences: Design scalable and secure solutions across onboarding, servicing, and commerce flows for T-Mobile’s enterprise and federal customer base.Evaluate third-party products to determine suitability for integration into organizational technology solutions, including enterprise platforms and vendor ecosystemsDefine and maintain software development processes to ensure consistent application architecture, API-first integration strategies, and technology standardsTranslate business requirements into technical specifications and support team members in solution implementation across onboarding, servicing, and commerce domainsProvide architectural leadership for scalable, secure, and compliant B2B digital experiences across web and mobile platformsStay ahead of industry trends, including cloud-native architectures and customer experience technologies, through continuous learning and professional engagementUnderstand and analyze business processes related to assigned projects to align technical solutions effectively across enterprise customer lifecycle needsTake ownership of new requests and see opportunities to enhance job outcomes, platform scalability, and organizational valueAct as a domain expert and provide architectural guidance on platform evolution, integration strategies, and emerging technologiesAlso responsible for other duties/projects as assigned by business management as neededEducation and Work Experience:Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience (Required)Acceptable areas of study include Computer science or related field (Required) Technology certifications (such as Java, Microsoft, Oracle) a plus7-10 years experience in business environment. (Required)7-10 years experience as software or systems architect, engineer, programmer. (Required)4-7 years experience in B2B online e-commerce systems architecture and design.(Required)4-7 years experience in web experience management technologies included but not limited to self-services, content management, search, analytics, and marketing automation. (Required)4-7 years experience in architecture and design of mobile web applications included responsive design and hybrid model for device native applications. (Required)Preferred QualificationsExperience in telecom environments focused on customer-facing B2B product delivery.Architecting or integrating Salesforce, ERP, and enterprise backend systems.Working with customer-facing tools and ecosystems (e.g., Angular, Spring Boot, NBA).Experience with BSS/OSS systems, commerce engines, and 3rd-party vendor ecosystems.Strong understanding of federal compliance requirements, security standards, and data protection in the context of enterprise customers.Deep familiarity with cloud-native development (AWS, Azure), container orchestration (Docker, Kubernetes), and API-first integration strategies.Experience with federal and large enterprise customer constructs, including onboarding, account lifecycle management, and secure identity.Strong leadership presence and ability to communicate effectively across technical and executive partners.Knowledge, Skills and AbilitiesLeadershipSoftware DevelopmentProcess ManagementAnalyticsProblem SolvingAt least 18 years of ageLegally authorized to work in the United StatesTravel:Travel Required (Yes/No): NoDOT Regulated:DOT Regulated Position (Yes/No): NoSafety Sensitive Position (Yes/No): NoTotal Target Cash Earnings Opportunity: $148,560 - $267,960National Base Pay Range: $123,800 - $223,300The 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, 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 .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!T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, genetic information, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated.Talent comes in all forms at the Un-carrier. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please let us know by emailing View email address on click.appcast.io or calling View phone number on click.appcast.io. Please note, this contact channel is not a means to apply for or inquire about a position and we are unable to respond to non-accommodation related requests.SummaryLocation: Bellevue, Washington; Atlanta, Georgia; Frisco, TexasType: Full time