Principal Engineer - Identity Security

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That's how we're UNSTOPPABLE for our employees!

Job Overview
The Principal Identity Engineer will serve as the day-to-day technical and strategic lead for T-Mobile's identity verification program. This role blends deep technical engineering expertise with hands-on program and project management responsibilities. The ideal candidate is a proactive leader who will partner closely with stakeholders to deliver a vision for workforce identity assurance-while also independently crafting and executing strategic extensions of the program. This position requires extensive experience developing solutions within the Microsoft Azure ecosystem, including Entra ID. The Principal Identity Engineer will be expected to leverage Microsoft Graph API and other scripting interfaces (PowerShell, Python, Java) to integrate and optimize enterprise identity tools. This role provides leadership, mentorship, and technical authority across identity architecture, automation, and compliance.

Job Responsibilities

• Leads execution and evolution of identity verification programs across a wide range of enterprise platforms.
• Translates identity vision into technical requirements and implementation plans aligned with business outcomes.
• Develops and manages large-scale program plans, timelines, and collaborator communications.
• Designs and delivers automation solutions and integrations using PowerShell, Python, Java, and Microsoft Graph API.
• Serves as an expert in Microsoft Azure cloud identity tools, particularly Entra ID, Azure AD, and conditional access policy management.
• Surfaces insights from identity platform data to drive reporting, compliance, and service improvements.
• Collaborates with cybersecurity, IT, compliance, and engineering leadership to ensure alignment with enterprise strategy.
• Mentors engineers and analysts, promoting a strong culture of delivery, autonomy, and innovation.

Education and Work Experience

• Bachelor's Degree Computer Science or Information Technology or equivalent work experience.
• 7-10 years Experience with increasing responsibility with security related software and/or business process design.
• 4-7 years Experience with the following: project/team lead, formal implementation SDLC, facilitation of cross-functional solution design teams.
• 4-7 years Technical Project Management
• Previous Leadership experience
• Be authority in multiple security subject areas
• Experience with high level design architecture, security technologies, networking, web services and SOA.
• Domain expert in all facets of network & information security, including Firewall policy design, SSL Certificate management, vulnerability analysis & mitigation, and other topics as assigned.

Preferred Knowledge, Skills and Abilities

• Demonstrated ability to independently drive outcomes and strategic roadmap delivery
• Strong program and project management skill.
• Deep understanding of Microsoft Entra ID, Azure AD, Graph API, and enterprise access control models
• Expert-level automation and scripting skills (PowerShell, Python, Java preferred)
• Strong executive communication, multi-functional collaboration, and partner management

Licenses and Certifications

• Certified Information Systems Security Professional (CISSP) CISSP and/or CCSK and/or CCSP and/or CISA/CISM certification a plus (Preferred)
• Certified Information Security Manager (CISM) (Preferred)
• Certified Information Systems Auditor (CISA) (Preferred)

Our team is dynamic where no day is the same, and we are a diverse and inclusive team passionate about growth and innovation! If you're up to the challenge, apply today!

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

Travel :
Travel Required (Yes/No): Yes
DOT Regulated :
DOT Regulated Position (Yes/No): No
Safety Sensitive Position (Yes/No): No
Base Pay Range: $127,800 - $230,700 Corporate Bonus Target: 20%

The pay range above is the general base pay range for a successful candidate in the role. The successful candidate's actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay will vary within this range.

At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee's eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. To find the pay range for this role based on hiring location, click here.

At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually - 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, and voluntary long-term care insurance. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile's amazing benefits, check out .

Never stop growing!
As part of the T-Mobile team, you know the Un-carrier doesn't have a corporate ladder-it's more like a jungle gym of possibilities! We love helping our employees grow in their careers, because it's that shared drive to aim high that drives our business and our culture forward. By applying for this career opportunity, you're living our values while investing in your career growth-and we applaud it. You're unstoppable!
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, the 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 or calling . Please note, this contact channel is not a means to apply for or inquire about a position and we are unable to respond to non-accommodation related requests.