Principal Engineer, Systems Architecture - Fixed Wireless Access

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 Responsibilities:

Technical System Expertise:

• Serve as the broadband domain authority across Fixed Wireless Access systems, with deep technical knowledge of broadband CPE architecture (including RDK, OpenWRT, and SOC/firmware integration), device management protocols (TR-369/USP), and scalable cloud infrastructure. Architect and document systems that span millions of endpoints, including telemetry pipelines, real-time customer-facing APIs, and backend service layers. Drive root cause analysis and architectural remediation for complex performance, scale, and reliability issues. Develop system-wide models of service behavior, and continuously evaluate component interactions, cost tradeoffs, and design scalability.

Technical Engineering Services:

• Lead end-to-end architecture execution by transforming strategic concepts into actionable technical roadmaps. Coordinate across multiple internal and external engineering teams (including SOC vendors, OEMs, and cloud partners) to deliver interoperable broadband solutions. Author architecture specifications, interface contracts, and sequencing documents to support service integration and delivery. Oversee architectural implementation and validation for key subsystems including CI/CD platforms, telemetry ingestion layers, broadband analytics, and lifecycle management services.

Innovation:

• Identify and prototype disruptive broadband solutions that improve performance, reliability, or operational simplicity at scale. Influence product direction by tracking emerging standards and vendor capabilities across the broadband industry. Engage with silicon, hardware & cloud vendors early in the product lifecycle to ensure architecture alignment and long-term supportability. Lead cross-functional investigations into broadband service bottlenecks or innovation opportunities, including next-gen device provisioning, cloud-native orchestration patterns, and lifecycle intelligence.

Technical Writing:

• Produce clear and comprehensive architecture documents that define broadband subsystems, data flows, edge/cloud interaction patterns, and operational behaviors. Write and maintain high-quality technical artifacts including API definitions, interface specs, sequence diagrams, and architecture review decks. Prepare and deliver presentations tailored to technical audiences, executive stakeholders, and external partners. Contribute to standardization artifacts (e.g., Broadband Forum, RDK community), and lead technical content for PoC evaluations and RFIs.

Technical Leadership:

• Establish and drive broadband architecture strategy across multi-vendor ecosystems, internal platform teams, and national-scale broadband operations. Represent T-Mobile in industry working groups and influence global technology direction for home internet. Mentor and guide engineering teams on technology decisions, coding standards, and architecture principles. Conduct architectural reviews, evaluate design decisions, and ensure consistent application of system-level best practices. Lead vendor technical assessments, ensuring architectural integrity and high-quality deliverables.

Technology Strategy:

• Evaluate emerging technologies and standards relevant to T-Mobile's broadband evolution. Formulate architecture positions and technology roadmaps that align with FWA growth, nationwide scale, and business model evolution. Define long-term service architecture strategies-including disaggregation, telemetry intelligence, and cloud-native scalability-and influence platform direction across partner and internal teams. Collaborate with finance, product, and operations stakeholders to drive capital-effective design decisions grounded in NPV, ROI, and long-term TCO.

Education and Work Experience:

• Bachelor's Degree Engineering, Computer Science (Required)
• 7-10 years Technical engineering experience Required

Knowledge, Skills and Abilities:

• Focus: Able to develop and communicate goals in support of the business' mission. (Required)
• Drive: Self-motivated and able to work well under pressure with minimal supervision - including the ability to simultaneously support multiple strategically significant tasks under fixed/accelerated deadlines. (Required)
• Teamwork: Ability and desire to work cooperatively with others on a team. Develop, maintain, and strengthen partnerships that can provide information, assistance, and support. (Required)
• Communication: The ability to ensure that information is passed on to others who should be kept informed. Express self clearly in conversations and interactions with others. Clear business and technical writing skills. The ability to plan and deliver oral and written communications that make an impact and persuade their intended audiences. (Required)
• Customer Focus: The ability to demonstrate concern and meet external and/or internal customers' needs. (Required)
• Analytical: The ability to tackle a problem by using a logical, systematic, sequential approach. (Required)
• Technical Expertise: The ability to demonstrate depth of knowledge and skill in a technical area. (Required)
• Forward Thinking: The ability to anticipate the implications and consequences of situations and take appropriate action to be prepared for possible contingencies. (Required)
• Influencing Others: The ability to gain others' support for ideas, proposals, projects, and solutions. (Required)
• Motivational Support: The ability to enhance others' commitment to their work. (Required)
• Inspiring Others: Ability to convey confidence in employees' ability to be successful, especially at (Required)
• Conceptual Thinking: The ability to find effective solutions by taking a holistic, abstract, or theoretical perspective. (Required)
• Strategic Thinking: The ability to analyze the organization's competitive position by considering market and industry trends, existing and potential customers (internal and external), and strengths and weaknesses as compared to competitors. (Required)
• Fostering Innovation: The ability to develop, sponsor, or support the introduction of new and improved method, products, procedures, or technologies. (Required)

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

Travel:
Travel Required (Yes/No): Yes

DOT Regulated:
DOT Regulated Position (Yes/No): No
Safety Sensitive Position (Yes/No): No

The pay range above is the general base pay range for a successful candidate in the role. The successful 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.

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 www.t-mobilebenefits.com.

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, 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 ApplicantAccommodation@t-mobile.com or calling 1-844-873-9500. 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.