Principal Software Engineer - ServiceNow ITOM

Job Overview

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees receive the same big love we give our customers. All team members receive a competitive base salary and compensation package—this is Total Rewards—along with wealth‑building opportunities such as annual stock grants, employee stock purchase plans, 401(k), and free, year‑round money coaches. That’s how we’re UNSTOPPABLE for our employees!

This role is essential for designing, implementing, and deploying scalable Service Now ITOM software solutions that support high‑availability environments and enable accurate operational visibility across T‑Mobile. It involves collaborating with engineering teams to architect and develop ITOM components—including Discovery patterns, Service Mapping logic, CMDB integrations, orchestration workflows, and operational automation—leveraging technologies such as microservices, virtualization, infrastructure APIs, and modern data platforms.

Success is measured by the effectiveness of ITOM capabilities delivered, technical leadership contributions, and the ability to influence technology direction across teams.

• Lead design and development of Service Now ITOM capabilities, including Discovery, Service Mapping, CMDB enrichment logic, operational workflows, and infrastructure integrations, ensuring reliable, scalable, and high‑quality outcomes.
• Serve as principal technical authority for ITOM architecture, guiding senior and junior engineers in best practices for Discovery optimization, CMDB alignment to CSDM, integration frameworks, and operational automation.
• Assess and adopt emerging Service Now ITOM capabilities, infrastructure technologies, automation toolsets, and integration methods to support T‑Mobile’s operational and observability goals.
• Design enhancements to ITOM patterns, mapping logic, Discovery processes, and platform integrations to improve visibility, accuracy, and operational efficiency.
• Create comprehensive documentation outlining ITOM architectures, technical designs, integration models, system dependencies, and governance patterns to support cross‑team alignment and long‑term maintainability.
• Support adjacent Service Now domains—including CMDB, CSDM, ITAM, and operational automation initiatives—as required.

• Bachelor’s Degree in Computer Science or Engineering (Required)
• 7‑10 years of technical engineering experience

• Communication (Required)
• Customer Service (Required)
• Analytics (Required)
• Technical Writing (Required)

• Expert‑level experience with Service Now ITOM modules (Discovery, Service Mapping, Event Management, Orchestration)
• Deep knowledge of CMDB architecture, CSDM alignment, relationship modeling, and data lifecycle governance
• Strong background in infrastructure domains (network, compute, cloud, containers, load balancing, distributed systems)
• Advanced experience with integrations using MID Server, APIs, web services, and infrastructure tool chains
• Ability to define and govern ITOM architectural standards across large, diverse environments

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

Travel Required:

Yes

DOT Regulated Position:
No | Safety Sensitive Position:
No

Base Pay Range: $133,500 – $240,700 (Corporate Bonus Target: 20%)

Full‑time employees have access to medical, dental, vision, flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off, paid holidays, parental and family leave, family building benefits, disability insurance, and commuter programs. Additional voluntary coverage and discounts are available.

T‑Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, religious affiliation, marital status, citizenship status, veteran status, presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law.

Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated.

Talent comes in all forms at the Un‑carrier. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please let us know by emailing Applic or calling 1‑844‑873‑9500.