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Senior Data Science Engineer

United States, Philadelphia Employment contract 116500.00 - 210100.00 USD / Year · Job Posted June 03, 2026
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Job Description

At T-Mobile Advertising Solutions, we're building privacy-first advertising products powered by advanced machine learning, large-scale data processing, and cloud technologies. Our proprietary algorithms enable rich consumer insights, intelligent audience solutions, and measurable performance for advertisers while maintaining a strong commitment to consumer privacy. We are seeking a creative, and curious Senior Data Science Software Engineer to join our team. In this role, you'll work at the intersection of machine learning, software engineering, and big data, building AI and ML systems that directly impact our customers and business. You'll collaborate with engineers, data scientists, product managers, and other stakeholders to solve complex problems and deliver innovative solutions at scale. We embrace Lean Development principles, iterative experimentation, continuous learning, and a strong build-measure-learn feedback culture. The work you do will directly shape the future of our products and technologies.

Job Responsibility

  • Lead the end-to-end development of machine learning and data products aligned to business objectives, from problem framing through deployment and monitoring
  • Build scalable data, training, and inference pipelines using distributed processing and cloud technologies
  • Apply statistical methods, experimentation, and validation frameworks to ensure solution quality and business impact
  • Write production-quality code and contribute to engineering best practices, including testing, CI/CD, and observability
  • Collaborate across engineering, product, and business teams while leading other engineers and data scientists

Requirements

  • Bachelor's Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience
  • Acceptable areas of study include Quantitative Discipline (math, statistics, economics, computer science, physics, engineering, etc.)
  • 4-7 years experience building and deploying machine learning and deep learning solutions at scale
  • familiarity with MLOps and DevOps practices and tools
  • 4-7 years Experience working within big data architecture, modern analytical data platforms, and large-scale data warehousing technologies (e.g. BigQuery, Snowflake, Redshift)
  • 4-7 years Experience working with large-scale distributed data systems and cloud platforms (e.g. SQL, Python, Scala, AWS)
  • 4-7 years Experience solving complex data, machine learning, or algorithmic challenges in production environment using modern engineering practices
  • At least 18 years of age
  • Legally authorized to work in the United States

Nice to have

Experience in AdTech and GIS or geospatial data processing

What we offer

  • Competitive base salary
  • Annual stock grant
  • Employee stock purchase plan
  • 401(k)
  • Free, year-round money coaches
  • 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
  • Childcare subsidy
  • Tuition assistance
  • College coaching
  • Short- and long-term disability
  • Voluntary AD&D coverage
  • Voluntary accident coverage
  • Voluntary life insurance
  • Voluntary disability insurance
  • Voluntary long-term care insurance
  • Mobile service & home internet discounts
  • Pet insurance
  • Access to commuter and transit programs
  • Corporate bonus target: 15%

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