(09 / 10 / 2025) Sr Engineer, Software - Agentic AI [T500-20453]

About T-Mobile :

T-Mobile US, Inc. (NASDAQ : TMUS), headquartered in Bellevue, Washington, is America’s supercharged Un-carrier, connecting millions through its strong nationwide network and flagship brands, T-Mobile and Metro by T-Mobile. Customers benefit from an unmatched combination of value, quality, and exceptional service experience.

About TMUS Global Solutions :

TMUS Global Solutions is a world-class technology powerhouse accelerating the company’s global digital transformation. With a culture built on growth, inclusivity, and global collaboration, the teams here drive innovation at scale, powered by bold thinking.

TMUS India Private Limited operates as TMUS Global Solutions.

About the Role :

The Sr. Agentic AI Engineer plays a key role in designing and delivering core connectivity, IoT, and cloud platform products tailored for B2B and enterprise customers. This role involves developing internal and external business applications, system interfaces, databases, reporting, and business intelligence systems that enable new functionality to support organizational objectives.

As part of the Emerging Technology team, the engineer works directly with business stakeholders, product managers, and architects to ensure architectural designs are effectively implemented. In addition, the role provides technical guidance to software development teams throughout the full development lifecycle.

What You’ll Do :

• Design, develop, and support TfB platform solutions and related tools and capabilities
• Work closely with business and product leadership, Architects, and DevOps engineers to execute strategy and roadmap
• Build and unit test systems functionality per technical specifications
• Facilitate walkthroughs of technical specifications and code
• Communicate design and limitations of systems / applications
• Implement and improve CI / CD processes, tools, and environments
• Provide accurate development estimates and updates on progress
• Collaborate with Testing, Release, BSA, PM, and Support teams
• Design APIs and microservices, work with front-end UI, and develop RESTful APIs

What You’ll Bring :

Minimum 4-7 years’ experience in application development

4-7 years designing and developing apps using RDBMS or NoSQL DB

4+ years using 3+ dev languages / tools (e.g., Java, ASP. Net, J2EE)

Experience on Unix or Windows and multi-tiered application design

Led at least 1 cross-functional project and participated in 4+ projects

Technical leadership for 3+ software engineers

Experience with 3+ business applications and tier-4 support

Knowledge of end-to-end security across cloud, network, data

Working knowledge of Agile and DevOps practices

Bachelor's degree in computer science or related field

Must Have Skills :

LLMs

Multi-agent frameworks

Autonomous agent design

Python

Prompt engineering