Platform Engineer

Overview

At T-Mobile, we invest in YOU. The Platform Engineer designs and optimizes infrastructure that supports internal services and platforms, building resilient and scalable systems to ensure robust infrastructure and enterprise-wide governance. The role focuses on implementing CI/CD pipelines and enhancing data platform interoperability. Success is measured by system reliability, efficient software deployment, and seamless technology migrations and integrations. The work enables adaptability and operational excellence in a dynamic technological environment.

We are a team that encourages innovation and advocates an agile and open approach, truly working in the Un-carrier way!

• Designs and develops resilient and scalable infrastructure systems
• Own day-to-day operations of hybrid infrastructure supporting T-Mobile’s platform services
• Ensure uptime, performance, and security across on-prem, AWS, and Azure environments
• Troubleshoot complex infrastructure, configuration, and deployment issues impacting platform reliability
• Lead patching, updates, and configuration management with minimal oversight
• Participate in on-call rotation and drive improvements in incident response and postmortem practices
• Optimizes existing infrastructure to enhance functionality and interoperability
• Ensure system reliability, performance, and security through proactive monitoring, automation, and performance tuning
• Troubleshoot complex platform and application integration issues impacting performance or availability
• Develop, execute, and tune DML logic — queries, data migrations, transformations, and batch operations — for performance and reliability
• Drive incident analysis and reliability reviews to improve operational posture and system resilience
• Implements and maintains CI/CD pipelines for efficient software deployment
• Support containerization and orchestration technologies, including Docker and Kubernetes, to standardize deployment practices
• Design, develop, and maintain automation using Python, Bash, or Power Shell to increase operational efficiency
• Implement and manage Infrastructure-as-Code (IaC) using Terraform, Ansible, or equivalent frameworks
• Build and maintain CI/CD pipelines for platform infrastructure and environment deployments (Git Lab CI/CD, Jenkins)
• Establish documentation standards and reusable modules for consistent automation delivery
• Collaborates within Agile teams to drive continuous improvement and operational excellence
• Contribute to Agile ceremonies, driving infrastructure readiness and delivery excellence
• Advocate for Dev Ops and automation best practices across engineering teams
• Participate in on-call rotations and lead incident resolution and root cause analysis
• Lead efforts in automation for self-healing, scaling, and performance tuning
• Facilitates seamless migrations and integrations across different technologies
• Develop and manage observability solutions leveraging Prometheus, Grafana, Cloud Watch, Azure Monitor, or ELK
• Implement proactive monitoring, log analysis, and metrics-based alerting for early issue detection
• Collaborate with SREs to improve MTTR and overall platform reliability
• Execute and optimize DML operations within Postgres, Oracle, and Cassandra environments under existing organizational DDL structures
• Develop and maintain integrations with Kafka for event-driven data pipelines, message publishing, and asynchronous workloads
• Implement caching strategies (Redis, in-memory caches) to reduce query latency and improve application performance
• Support database performance tuning, data ingestion, and transformation activities aligned with enterprise governance standards
• Partner across engineering, Dev Ops, and data teams to design scalable solutions and resolve complex issues

• Bachelor’s Degree plus 2 years of related work experience OR combination of education and experience deemed equivalent (Required)
• Acceptable areas of study include Computer Science, Data Science or Related Field (Preferred)
• 2-4+ years - Designing and developing scalable and resilient infrastructure systems
• 2-4+ years - Implementing and managing CI/CD pipelines for enterprise applications
• 2-4+…