Sr engineer, site reliability [t500-20439]

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 Senior Systems Reliability Engineer (SRE) ensures the stability, performance, and reliability of T-Mobile’s IT services and infrastructure. This role combines software engineering and operations expertise to build and maintain highly available, scalable systems. As a leader in Dev Ops and cloud reliability practices, this engineer supports continuous improvement of automation, deployment pipelines, observability, and incident management, while mentoring junior engineers and optimizing production workflows.

The position plays a critical part in enabling software to be delivered faster, better, and more reliably in support of T-Mobile’s business and customer needs.

What You’ll Do :

Design and maintain CI / CD pipelines and Dev Ops automation solutions

Guide incident response and improve system resiliency and performance

Build monitoring tools, dashboards, and proactive alerting for non-production environments

Create and maintain infrastructure as code (Ia C) for scalable environments

Work with containerization and microservices in cloud-native platforms

Mentor junior engineers and collaborate across teams on cloud and Dev Ops initiatives

Improve software delivery processes through automation, cloud migration, and service orchestration

Perform other duties and technical projects as assigned

What You’ll Bring :

Bachelor’s degree in computer science, Software Engineering, or related field (master’s preferred)

4-7 years of experience in systems reliability, Dev Ops, or cloud infrastructure engineering

Experience with CI / CD tools like Jenkins, Git Lab CI, or Cloud Bees

Familiarity with infrastructure and configuration management tools (Ansible, Chef, Puppet)

Hands-on knowledge of public and private cloud platforms

Experience with application performance monitoring (APM) and log aggregation tools

Proven experience working in Agile and Dev Ops environments

Must Have Skills :

Security Testing – OWASP ZAP, Burp Suite, Fortify, Veracode

Monitoring and Observability tool - App Dynamics, Splunk, ELK, Prometheus, Grafana, Open Telemetry (OTel)

Nice To Have :

Experience with Kubernetes, Docker, or other container technologies

Understanding of service-level objectives (SLOs), SLIs, and error budgets

Experience in cloud migration and cloud-native systems architecture

Background in performance, security, or availability testing practices