Principal Systems Architect

T-Mobile

. Design scalable and secure solutions across onboarding, servicing, and commerce flows for enterprise and federal customers .

Posted 9/30/2026full-timeUnited StatesLead💰 $123,800 - $223,300 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing scalable and secure B2B digital solutions, with a strong focus on web and mobile platforms. Proficient in translating business requirements into technical specifications and providing architectural leadership in cloud-native environments.

Highest-signal resume keywords

B2B Online E-Commerce Systems ArchitectureWeb Experience Management TechnologiesMobile Web Applications ArchitectureAPI-First Integration StrategiesSoftware Development Processes

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software ArchitectureSystems EngineeringProgrammingCloud-Native ArchitecturesResponsive DesignHybrid Mobile ApplicationsContent ManagementAnalyticsMarketing AutomationIntegration Strategies

Certifications & Qualifications

Java CertificationMicrosoft CertificationOracle Certification

Industry Keywords

Enterprise PlatformsVendor EcosystemsCustomer Experience TechnologiesBusiness Process AnalysisTechnical Specifications

Tech Stack

Tools & technologies

CloudJavaOracle

About the role

Key responsibilities & impact

Design scalable and secure solutions across onboarding, servicing, and commerce flows for enterprise and federal customers
Evaluate third-party products for integration into organizational technology solutions, including enterprise platforms and vendor ecosystems
Define and maintain software development processes, application architecture, API-first integration strategies, and technology standards
Translate business requirements into technical specifications and support solution implementation
Provide architectural leadership for scalable, secure, and compliant B2B digital experiences across web and mobile platforms
Track industry trends in cloud-native architectures and customer experience technologies
Analyze business processes to align technical solutions with enterprise customer lifecycle needs
Identify opportunities to improve job outcomes, platform scalability, and organizational value
Provide domain expertise and architectural guidance on platform evolution, integration strategies, and emerging technologies
Perform other duties and projects as assigned by business management

Requirements

What you’ll need

Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience (Required)
Computer science or related field (Required)
7-10 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, including self-services, content management, search, analytics, and marketing automation (Required)
4-7 years experience in architecture and design of mobile web applications, including responsive design and hybrid model for device native applications (Required)
At least 18 years of age
Legally authorized to work in the United States
Technology certifications such as Java, Microsoft, or Oracle are a plus

Benefits

Comp & perks

Competitive base salary and compensation package
Annual stock grant
Employee stock purchase plan
401(k)
Free, year-round money coaches
Medical, dental and vision insurance
Flexible spending account
Paid time off
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 and home internet discounts
Pet insurance
Commuter and transit programs
Career growth opportunities