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# Principal Engineer, Systems Architecture

- **Company:** T-Mobile Us, Inc.
- **Location:** Parsippany-Troy Hills, NJ, United States
- **Experience:** Expert
- **Salary:** $130,400.0 - $235,200.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Systems Engineering, Microsoft Azure, VoIP, Cloud Engineering, Distributed Systems, Multimedia Messaging Services, Network Architecture, OpenAI, Systems Architecture, Agentic-AI, Microsoft Copilot Studio, Kubernetes, Information Technology, Microservices, Telco Cloud
- **Published:** October 23, 2026
- **Apply:** https://diversityjobs.com/career/18700977/Principal-Engineer-Systems-Architecture-New-Jersey-Parsippany

## About the Role

* Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience
 * Acceptable areas of study include Engineering, Computer Science

Required Work Experience:

 * 7-10 years Technical engineering experience
 * 12+ years of experience across UCaaS, telecom, or cloud communications platforms.
 * Cloud architecture expertise across Microsoft Azure, AWS or GCP; relevant cloud certifications are a plus.
 * Strong hands-on experience with IMS Core, SBC, SIP, VoIP, SMSC/MMSC, and related telecom integrations.
 * Proven experience designing, deploying, and operating large-scale, carrier-grade and enterprise communications platforms.
 * Experience with Agentic AI and AI-powered workflow automation.
 * Hands-on experience building AI agents or solutions using Microsoft Copilot Studio, OpenAI, or similar platforms.
 * Strong production troubleshooting and incident leadership skills, including diagnosing complex issues with limited data and driving critical incidents to resolution.
 * Experience with cloud-native architectures, including Kubernetes, containers, microservices, APIs, and distributed systems.

Required Knowledge, Skills and Abilities:

 * Analytical Thinking
 * Communication
 * Mentorship
 * Network Architecture
 * Solution Architecture
 * Strategic Objectives
 * Systems Architecture
 * Systems Engineering
 * Technical Writing
 * Telecommunications

#LI-Corporate

 * At least 18 years of age
 * Legally authorized to work in the United States

## Description

* Lead the development and evolution of network and service
 * Created architecture designs to support technology portfolio enhancements
 * Conduct analysis and interpretation of network simulations and test results to inform architecture decisions
 * Create and maintain technical documentation and presentations to communicate complex ideas to diverse audiences
 * Drive engineering projects by applying techniques, supervising engineers, and optimizing network architecture processes
 * Monitor industry technologies and standards to influence technology and policy decisions across the organization
 * Coach and mentor engineers on technology decisions and contribute to cross-functional technical investigations
 * Also responsible for other duties/projects as assigned by business management as needed