Senior AI Engineer: Agentic AI & Gen AI Systems

T-MOBILE USA, Inc.; Frisco (TX); On-site; USD 133,000 - 240,000; Full time

Benefits offered by this job

Annual stock grant

Employee stock purchase plan

401(k)

Money coaches

Job summary

T-Mobile USA, Inc. seeks a Senior AI Engineer to architect and optimize agentic AI systems powering customer service. You will design production-grade AI that coordinates across models, APIs, and tools to deliver reliable workflows and intuitive interactions.

You will work on prompt engineering, model fine-tuning, evaluation frameworks, and system orchestration to improve accuracy, reliability, and reasoning across millions of conversations. Join a team focused on Un-carrier excellence.

Qualifications

• 5+ years of related work experience for Bachelor's degree, or 3+ years with advanced degree.
• Experience building production AI apps and prompt engineering.
• Strong understanding of AI model evaluation and reliability.

Responsibilities

• Design, develop, and deploy scalable Generative AI apps and agentic AI systems.
• Architect multi-agent orchestration workflows with LangGraph/LangChain.
• Develop Retrieval-Augmented Generation solutions with embeddings and semantic search.
• Build RESTful APIs and MCP connectors for enterprise data services.

Skills

Python

API Development

Generative AI/LLMs

Agentic AI

RAG/Data Management

Cloud Computing

DevOps/SRE

System Architecture

Data Analysis

AI Evaluation

Collaboration

Education

Bachelor's Degree + 5 years

Advanced degree in CS/AI/DS

Tools

Docker

Kubernetes

LangGraph/LangChain

Job description

T-Mobile USA, Inc. seeks a Senior AI Engineer to architect and optimize agentic AI systems powering customer service. You will design production-grade AI that coordinates across models, APIs, and tools to deliver reliable workflows and intuitive interactions.

You will work on prompt engineering, model fine-tuning, evaluation frameworks, and system orchestration to improve accuracy, reliability, and reasoning across millions of conversations. Join a team focused on Un-carrier excellence.