Principal Engineer, Software - Platform Automation [T500-20373]

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 :

As Principal Engineer – Platform Automation, you will be a key member of the CFL Platform Engineering and Operations team ,you will lead architecture and development of automation frameworks, self-service tooling, and infrastructure-as-code systems that power scalable, resilient, and developer-friendly platforms. You will build automation-first solutions that drive velocity, observability, and operational excellence across CI / CD, provisioning, and cloud-native infrastructure.

What You’ll Do :

Architect and build reusable automation services for provisioning, config, lifecycle, and compliance

Develop internal developer tooling and APIs for self-service workflows

Lead event-driven automation using GitLab CI / CD, Argo Workflows, or Spinnaker

Drive adoption of Infrastructure-as-Code via Terraform, Helm, Pulumi, and GitOps pipelines

Integrate automation with CI / CD, service catalogs, and platform orchestrators

Embed observability, traceability, and telemetry into automation frameworks

Build systems for automated failure detection, triage, and remediation

Define platform-wide automation standards, architecture patterns, and best practices

Collaborate across SRE, DevOps, cloud, and security teams to automate operations

Mentor engineers and guide platform engineering strategy for automation at scale

What You’ll Bring :

Bachelor’s or Master’s in Computer Science, Engineering, or related field

7-12 years in software / platform / automation engineering roles

Expertise in building large-scale automation systems and developer tooling

Strong programming / scripting skills in Python, Go, Bash, or equivalent

Experience with CI / CD platforms (GitLab, ArgoCD, Jenkins), job orchestrators, and workflow automation

Deep knowledge of Kubernetes, containers, service orchestration, and IaC (Terraform, Helm, Pulumi)

Familiarity with event-driven automation using AWS Lambda, Azure Functions, or EventBridge

Experience building self-service developer platforms or internal portals

Understanding of platform security, secrets management, and compliance automation

Hands-on experience integrating observability, alerting, and incident workflows

Strong leadership, communication, and technical decision-making across cross-functional teams

Passion for platform simplicity, operational excellence, and empowering engineering teams

Must Have Skills :

Application & Microservice : Java, Spring boot, API & Service Design

Any CI / CD Tools : Gitlab Pipeline / Test Automation / GitHub Actions / Jenkins / Circle CI

App Platform : Docker & Containers (Kubernetes)

Any Databases : SQL & NOSQL (Cassandra / Oracle / Snowflake / MongoDB)

Any Messaging : Kafka, Rabbit MQ

Any Observability / Monitoring : Splunk / Grafana / Open Telemetry / ELK Stack / Datadog / New Relic / Prometheus)

AI / Machine learning : Anomaly detection

Nice To Have :

Closed-loop remediation (vendor integration : Akamai, Cequence, FICO)

ML governance (bias, audit, rollback)

Org-wide AIOps vision & roadmap

ROI storytelling (Incident / Change / Problem s prevented, $$ saved)

Vendor strategy, build-vs-buy