Principal Data Engineer

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We're looking for a Principal Data Engineer who brings strong technical judgment, a product-oriented mindset, and the ability to own data solutions end-to-end—from architecture and modeling to implementation and delivery, in a dynamic AdTech environment. You'll join a fast paced team that builds, runs, and operates the T-Mobile Advertising Solutions (T-Ads) platforms, including our audience building, rideshare, and retail media network solutions.

This is a product used by all the major advertising agencies and many top consumer product brands in the United States.

This role leads the development and implementation of data pipelines critical to organizational data infrastructure and analytics capabilities. You'll combine technical leadership with hands‑on contributions to achieve data engineering initiatives. If you thrive on collaborating with multi‑functional teams to solve complex data challenges, designing scalable data architectures, and deploying robust data pipelines to the cloud, we want to talk to you!

• Lead the design and development of data warehouse and business analytics solutions to ensure scalable and reliable data infrastructure
• Collaborate with cross‑functional teams to analyze and architect data solutions that meet business requirements
• Research and recommend technical approaches to address complex data migration, development, and integration challenges
• Provide hands‑on leadership in data implementation projects and manage independent work streams to deliver project objectives
• Facilitate workshops and design sessions to build relationships and align data engineering efforts with organizational goals
• Mentor data engineers to develop their skills in data architecture and engineering practices
• Assist team management in defining projects, including helping estimate, plan and scope work and other duties/projects as assigned by business management as needed

• Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience (Required)
• Acceptable areas of study include Mathematics, Computer Science, Engineering, Finance, Statistics, or related technical field (Required)
• 7-10 years Related experience as a Data Engineer (Required)
• 5+ years developing cloud solutions using data services (Required)
• Minimum 3+ years of managing or leading/coaching data engineering teams (Required)
• Experience designing and building self‑service analytics and big data solutions using cloud technologies (e.g., EMR, Aurora, Redshift, Glue, S3, SWF, Quicksight etc.) (Required)
• Experience with the Software development Life Cycle (SDLC) and Agile/Scrum methods (Preferred)

• Cloud Computing (Required)
• Collaboration (Required)
• Data Architecture (Required)
• Data Engineering (Required)
• Databricks DBRX (Required)
• Engineering Leadership (Required)
• Project Scoping (Required)
• Snowflake (Platform) (Required)

• Cloud platform certification(s) (AWS Certified Solutions Architect, AWS Certified Cloud Practitioner, OR Microsoft Certified Solutions Associate (MCSA) (Required)

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

Travel Required (Yes/No):
No

DOT Regulated Position (Yes/No):
No

Safety Sensitive Position (Yes/No):
No

Base Pay Range: $125,600 - $226,600

Corporate Bonus Target: 20%

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, employees in regular, non-temporary roles are eligible…