Principal Engineer, Software

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. 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: We are building a modern, cloud-native platform to support critical applications across finance, credit, document, and AI-powered systems. As a Principal Engineer – Cloud Infrastructure, you will be a key member of the CFL Platform Engineering and Operations team, you will lead the architecture and execution of infrastructure platforms that enable reliability, scalability, security, and developer productivity at scale. This is a strategic technical leadership role, driving cloud adoption, automation, and infrastructure architecture across multiple business domains. You’ll partner with engineering, security, AI, and SRE teams to build robust platforms that support multi-cloud deployments, CI/CD automation, zero-downtime operations, and cost-effective scaling. What You’ll Do: Architect and evolve cloud-native infrastructure platforms supporting mission-critical services across AWS, Azure, GCP, or OCI Lead the design and implementation of automated provisioning, scaling, and observability systems using IaC (Terraform, Pulumi, or ARM) Define and maintain standards for network architecture, service mesh, IAM, and cloud resource management Drive adoption of immutable infrastructure, container orchestration (Kubernetes), and scalable infrastructure patterns Develop strategies for high availability, disaster recovery, and zero-downtime deployments Optimize CI/CD workflows across multiple environments, enabling safe and frequent releases Collaborate with SRE and DevOps teams to deliver resilient infrastructure that supports SLAs, SLIs, and SLOs Identify opportunities to reduce toil through automation, telemetry, and self-service tooling Embed cloud security best practices into architecture, including policy-as-code, identity, and data protection Partner with security and compliance teams to ensure audit readiness, guardrails, and platform governance Monitor cloud usage and drive cost optimizations, scaling plans, and accountability across environments Lead architectural decision-making and reviews for infrastructure initiatives across multiple domains Mentor engineers across teams in cloud architecture, DevOps, and scalable platform practices Collaborate with TPMs, Product, and Architecture leaders to align cloud strategy with business outcomes Represent cloud engineering in executive technical discussions, roadmap reviews, and enterprise platform forums What You’ll Bring: Bachelor’s or Master’s degree in Computer Science, Engineering, or related technical field 7-12 years of experience in infrastructure, DevOps, or cloud platform engineering Deep expertise in cloud platforms (Azure preferred; AWS, GCP, OCI also relevant) Proven experience architecting secure, scalable, and automated infrastructure for enterprise environments Hands-on experience with Terraform, GitLab CI/CD, Kubernetes, and cloud-native architecture patterns Familiarity with HAProxy, load balancing, service discovery, and API gateway solutions Experience supporting distributed microservices, hybrid workloads, and platform engineering initiatives Demonstrated ability to lead technical projects across large-scale, multi-team organizations 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) Cloud Infra: AWS & Azure Nice To Have: Data governance strategy: SQL Server/MongoDB encryption, masking, access policies Enterprise cloud reference architecture (Azure, AWS, Databricks) Exec reporting, risk registers, modernization strategy FinOps governance: showback/chargeback, cost optimization Resilience playbooks: chaos engineering, cross-cloud failover