Principal Systems Architect – Salesforce

T-Mobile

Principal Systems Architect leading architecture strategy for T-Mobile's B2B platforms. Designing secure and scalable digital experiences for enterprise customers.

Posted 4/29/2026full-timeBellevue • Texas, Washington • 🇺🇸 United StatesLead💰 $123,800 - $223,300 per yearWebsite

Tech Stack

Tools & technologies

AngularAWSAzureCloudDockerERPJavaKubernetesOracleSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Architect 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 ecosystems
Define and maintain software development processes to ensure consistent application architecture, API-first integration strategies, and technology standards
Translate business requirements into technical specifications and support team members in solution implementation across onboarding, servicing, and commerce domains
Provide architectural leadership for scalable, secure, and compliant B2B digital experiences across web and mobile platforms
Stay ahead of industry trends, including cloud-native architectures and customer experience technologies, through continuous learning and professional engagement
Understand and analyze business processes related to assigned projects to align technical solutions effectively across enterprise customer lifecycle needs
Take ownership of new requests and see opportunities to enhance job outcomes, platform scalability, and organizational value
Act as a domain expert and provide architectural guidance on platform evolution, integration strategies, and emerging technologies
Also responsible for other duties/projects as assigned by business management as needed

Requirements

What you’ll need

Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience
Acceptable areas of study include Computer science or related field
Technology certifications (such as Java, Microsoft, Oracle) a plus
7-10 years experience in business environment.
7-10 years experience as software or systems architect, engineer, programmer.
4-7 years experience in B2B online e-commerce systems architecture and design.
4-7 years experience in web experience management technologies including but not limited to self-services, content management, search, analytics, and marketing automation.
4-7 years experience in architecture and design of mobile web applications including responsive design and hybrid model for device native applications.
Experience 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.
At least 18 years of age
Legally authorized to work in the United States

Benefits

Comp & perks

Medical, dental and vision insurance
Flexible spending account
401(k)
Employee stock grants
Employee stock purchase plan
Paid time off and 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 & home internet discounts
Pet insurance
Access to commuter and transit programs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

software architectureB2B e-commerce systemsweb experience managementmobile web applicationsAPI-first integrationcloud-native developmentcontainer orchestrationSalesforce integrationERP systemsBSS/OSS systems

Soft Skills

leadershipcommunicationproblem-solvingteam collaborationbusiness analysistechnical guidanceadaptabilityownershipstrategic thinkingcustomer focus

Certifications

Java certificationMicrosoft certificationOracle certification