Principal Engineer, Systems Architecture
About The Position
This role develops and evolves technical network and service architectures to maintain and enhance T-Mobile’s technology portfolio. The work includes creating and revising detailed architecture designs, selecting hardware and software, defining implementation processes, and interpreting network simulations, test results, and technology studies to inform design decisions. Success is measured by the effectiveness of architecture solutions and their alignment with business objectives. The role affects organizational technology capabilities and customer service quality through improved network design and strategy. The position is hybrid, requiring work in the office three days per week, and is not remote. The successful candidate will be located in the Seattle, Washington; Frisco, Texas; or Overland Park, Kansas area. Travel is required. The job also includes other duties and projects as assigned by business management.
Requirements
- Bachelor’s degree plus 7 years of related work experience, or an advanced degree with 5 years of related experience. Acceptable areas of study include Engineering and Computer Science.
- 7–10 years of technical engineering experience.
- 12+ years of experience across UCaaS, telecom, or cloud communications platforms.
- Cloud architecture expertise across Microsoft Azure, AWS, or GCP.
- 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.
- Knowledge and abilities in analytical thinking, communication, mentorship, network architecture, solution architecture, strategic objectives, systems architecture, systems engineering, technical writing, and telecommunications.
- At least 18 years of age.
- Legally authorized to work in the United States.
Nice To Haves
- Relevant cloud certifications.
Responsibilities
- Lead the development and evolution of network and service architectures.
- Create architecture designs to support technology portfolio enhancements.
- Analyze and interpret 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.
- Perform other duties and projects as assigned by business management.
Benefits
- Competitive base salary and compensation package.
- Annual stock grant and employee stock purchase plan.
- 401(k) and access to free, year-round money coaches.
- Annual bonus or periodic sales incentive or bonus for eligible employees; corporate employees may be eligible for a year-end bonus based on individual and/or company performance.
- Medical, dental, and vision insurance.
- Flexible spending account.
- Paid time off and up to 12 paid holidays.
- Paid parental and family leave.
- Family building benefits, back-up care, enhanced family support, and childcare subsidy.
- Tuition assistance and college coaching.
- Short- and long-term disability coverage, voluntary AD&D coverage, voluntary accident coverage, voluntary life insurance, voluntary disability insurance, and voluntary long-term care insurance.
- Mobile service and home internet discounts for eligible employees.
- Pet insurance and access to commuter and transit programs for eligible employees.
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Principal
