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# Principal Data Scientist

- **Company:** T-Mobile Us, Inc.
- **Location:** Bellevue, WA, United States
- **Experience:** Experienced
- **Salary:** $127,400.0 - $229,800.0
- **Contract:** Permanent contract
- **Skills:** Artificial Neural Networks, Computer Vision, Big Data, Information Engineering, Data Integration, Data Visualization, Relational Databases, Apache Hadoop, Apache Hive, Python (Programming Language), Machine Learning, Natural Language Processing, SQL Databases, Large Language Models, Random Forest, Apache Spark, Deep Learning, Generative AI, Data Strategy, Pyspark, Information Technology, Data Analytics, Xgboost, Apache Kafka, Machine Learning Operations, Databricks
- **Published:** October 4, 2026
- **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/18536687?backUrl=%2Fcareer%2F18536687%2FPrincipal-Data-Scientist-Washington-Bellevue

## 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 Quantitative Discipline (math, statistics, economics, computer science, physics, engineering), * 7-10 years Industry experience in predictive modeling, data science, and analysis in an ML engineer or data scientist role building and deploying ML models or hands on experience developing deep learning models
 * 4-7 years Experience writing and speaking about technical concepts to business, technical, and lay audiences and giving data-driven presentations
 * 7-10 years Experience articulating and translating business questions and using statistical techniques to arrive at an answer using available data
 * 4-7 years Experience with statistical methods and advanced modeling techniques. For example- SVM, Random Forest, graph models, Bayesian inference, NLP, Computer Vision, neural networks
 * 4-7 years Experience with big data architecture and pipeline, Hadoop, Hive, Spark, Kafka, etc.
 * 7-10 years Experience with data scripting languages (e.g., SQL, Python)
 * 4-7 years Experience in data visualization
 * 7-10 years Extended experience working with relational database using SQL

Preferred Experience

 * 4-7 years Experience in telecom industry

Required Knowledge, Skills and Abilities:

 * Advanced Analytics
 * Critical Thinking
 * Data Science
 * Data Visualization
 * Generative AI
 * Large Language Model (LLM)
 * Machine Learning (ML)
 * Statistical Analysis

Preferred Knowledge, Skills and Abilities:

 * Data Bricks
 * Deep Learning
 * XGBoost
 * LGBM
 * PySpark
 * Reinforced Learning

#LI-Corporate

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

## Description

* Extract, prepare, and model large, complex data sets to develop advanced analytics and machine learning solutions
 * Identify and evaluate new technologies to enhance data integration and quantitative analytics capabilities
 * Own the implementation and standardization of advanced analytics and modeling toolkits for data science teams
 * Collaborate with data engineering to shape data management strategies, architecture, governance, and infrastructure
 * Provide senior-level guidance on data science methodologies and approaches to technical teams
 * Communicate insights and technical information to business leaders through verbal, written, and visual means
 * Also responsible for other duties/projects as assigned by business management as needed


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