Principal Engineer, Site Reliability

T-Mobile•Frisco, TX

2d•$125,300 - $226,000

About The Position

This role supports organizational goals by enhancing system reliability and resilience to improve software development and deployment efficiency. It applies site reliability engineering principles and automation to reduce manual work and prevent operational incidents. The position requires strong problem-solving and analytical skills to resolve complex technical issues. Success is measured by system stability, incident reduction, and acceleration of software delivery processes. The work directly impacts the performance and reliability of the organization's digital infrastructure and customer experience.

Requirements

Bachelor's degree and 7 years of related work experience, or an equivalent combination of education and experience.
Required knowledge or skills in application monitoring, automation, CI/CD, capacity planning, cloud infrastructure, incident management, infrastructure as code (IaC), mentorship, scripting, and system reliability.
At least 18 years of age.
Legally authorized to work in the United States.

Nice To Haves

Study in Computer Science, Engineering, or a related field.
7–10 years of experience working in operations or development environments.
7–10 years of experience troubleshooting customer-related issues and managing customer relationships.
7–10 years of experience with scripting (such as Bash or PowerShell), other programming languages (such as Java or C#), and preferably SQL.
Google Cloud Certified – Professional Cloud Architect certification.
AWS Certified DevOps Engineer certification.
Certified Kubernetes Administrator (CKA) certification.

Responsibilities

Implement site reliability engineering practices and automation tools to improve system reliability and resilience.
Collaborate with cross-functional teams to support Agile and DevOps methodology adoption.
Apply problem-solving and analytical skills to resolve complex technical challenges.
Use advanced technologies and tools to accelerate software development and deployment.
Engage in continuous learning to maintain technical expertise and adapt to emerging technologies.
Reduce operational incidents by minimizing manual effort through automation and effective problem resolution.
Perform other duties or projects as assigned by business management.

Benefits

Competitive base salary and compensation package.
Annual stock grant and employee stock purchase plan.
401(k) and access to year-round money coaches.
Annual bonus or periodic sales incentive or bonus, depending on role and eligibility.
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, backup care, enhanced family support, and childcare subsidy.
Tuition assistance and college coaching.
Short- and long-term disability coverage.
Voluntary AD&D, accident, life, disability, and long-term care insurance.
Mobile service and home internet discounts for eligible employees.
Pet insurance for eligible employees.
Commuter and transit programs for eligible employees.