Job Title

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.This role ensures the reliability and resilience of digital infrastructure to support efficient software development and deployment. It involves automating processes and reducing manual effort to prevent operational incidents and improve system performance. The role requires expertise in programming, scripting, incident response management, and various technical tools to maintain system robustness. Success is measured by system stability, incident reduction, and continuous improvement in operational efficiency. The work directly impacts organizational stability and customer experience by maintaining high-performing and reliable systems. The Sr Engineer, Site Reliability is the core operations engineer, capable of resolving complex incidents, improving automation, and mentoring Engineer(s). They bridge operations and engineering by identifying recurring issues and creating scalable fixes.Responsibilities: Resolve escalated incidents across Kubernetes, API Proxy, WAF, DBs, and infra platforms. Design and improve runbooks, automating manual steps wherever possible. Lead and contribute to building self-healing systems and self-service tooling for users. Analyze incident trends, propose improvements in monitoring, capacity, and reliability. Collaborate with engineering teams on deployment, upgrades, and performance optimization. Conduct postmortems, document RCA, and ensure learning is captured. Mentor and coach Engineer(s)Skills: Mandatory Skills (Must-Have) Advanced Incident Troubleshooting & Resolution: Expectation: Diagnose and resolve escalated incidents that Engineer(s) cannot handle, often across multiple layers (infrastructure, application, network). Example: For an API outage, identify if the root cause is in Kubernetes pod networking, API gateway misconfig, or backend DB latency — and apply fixes.Kubernetes & Container Orchestration Expertise: Expectation: Comfortable with deployments, scaling, networking, and debugging cluster-level issues. Example: Troubleshoot why pods are pending by checking node capacity, taints/tolerations, and cluster autoscaler logs.Automation & Scripting (Python, Go, Bash, Ansible, Terraform): Expectation: Write scripts and automation to reduce manual toil, enhance monitoring, and improve incident resolution speed. Example: Develop a Python script to automatically collect pod and system logs when a service crashes.Observability & Monitoring Tooling: Expectation: Deep understanding of monitoring, alerting, tracing, and logging systems. Example: Build Prometheus alert rules to detect DB query spikes; configure Grafana dashboards for API latency.CI/CD & Infrastructure as Code (IaC): Expectation: Familiarity with GitOps workflows, CI/CD pipelines, and infrastructure provisioning. Example: Enhance Jenkins pipeline to add automated smoke tests before promoting Kubernetes deployments.Database Troubleshooting (SQL & NoSQL): Expectation: Identify performance bottlenecks, connection issues, and basic tuning opportunities. Example: Run queries to detect slow-running SQL statements causing latency in an application.Incident Management & RCA: Expectation: Act as incident commander for escalated issues, lead bridge calls, and produce Root Cause Analyses. Example: After a WAF misconfiguration causes downtime, lead the investigation, document the timeline, and propose preventive actions.Mentorship & Runbook Improvement: Expectation: Coach Engineer(s), refine runbooks, and introduce new automated workflows. Example: Update a runbook to add automated Kubernetes log collection instead of manual steps.Preferred Skills (Nice-to-Have): Cloud Platform Engineering (AWS, Azure, GCP): Expectation: Hands-on skills in provisioning, scaling, and securing cloud workloads. Example: Diagnose why an AWS ALB is misrouting traffic after a deployment.Security & WAF Management: Expectation: Understand WAF rules, common attacks (SQL injection, XSS), and how to apply fixes. Example: Investigate false positives in WAF logs and adjust rule sets with security teams.Capacity & Performance Engineering: Expectation: Anticipate scaling needs, tune resource utilization, and propose optimizations. Example: Identify that a Kubernetes deployment is CPU-throttled and adjust HPA (Horizontal Pod Autoscaler) configs.Automation Platform Integration (AIOps, ChatOps): Expectation: Integrate AI/ML-powered tools for anomaly detection and auto-remediation. Example: Implement a ChatOps bot that runs predefined Kubernetes troubleshooting commands in Slack.Cross-Platform Expertise (Hybrid Infra): Expectation: Experience supporting both on-prem and cloud environments seamlessly. Example: Compare latency patterns between on-prem DBs and cloud-hosted APIs to identify bottlenecks.Qualifications: 7+ years in SRE/DevOps/Systems Engineering as Senior or Principal Engineer Strong hands-on experience with Kubernetes, container orchestration, and API management. Working knowledge of WAFs, networking security, and database technologies (SQL/NoSQL). Proficient in automation and scripting (Python, Go, Ansible, Terraform, etc.). Strong observability/monitoring experience. Experience with CI/CD pipelines, GitOps, and infrastructure as code. Solid problem-solving and collaboration skillsTMUS India Private Limited, operating as TMUS Global Solutions, has engaged ANSR, Inc. ("ANSR") as its exclusive recruiting partner. That means that any communications regarding TMUS Global Solutions opportunities or employment offers will be issued only through ANSR and the 1Recruit platform. If you receive a communication or offer from another individual or entity, please notify TMUS Global Solutions immediately. TMUS Global Solutions will never seek any payment or other compensation during the hiring process or request sensitive personal data (such as bank details or government-issued identification numbers) prior to a candidate’s acceptance of a formal offer.