Sr Systems Reliability Engineer - Legal Technology

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The System Reliability Engineer (SRE) guides and mentors other SREs and improves and protects the software and systems behind T-Mobile's IT services, including scalability, availability, latency, performance, security, and capacity, while enabling faster, higher-quality software delivery.

In this role, you will support T-Mobile’s Legal & Emergency Response platforms—mission-critical systems that enable response to urgent law enforcement and emergency situations. These systems operate in high-stakes environments where reliability, speed, and accuracy truly matter. When these systems are up and running, they can help enable real-world outcomes that impact people in critical moments.

This is not a maintenance role. You’ll step into a modern, cloud-native platform that is still evolving—giving you the opportunity to shape how it scales, improves, and becomes truly resilient. You’ll work on meaningful problems, own production systems end-to-end, and directly influence how reliability is built into the platform.

You’ll also work in an environment that embraces modern engineering practices, including strong adoption of AI-assisted tools, and a culture that values ownership, collaboration, and continuous improvement.

If you’re someone who thrives in high-impact environments, enjoys solving complex reliability challenges, and wants your work to matter beyond just uptime metrics—this is a role where you can make a real difference.

T-Mobile requires U.S. citizenship for certain roles within the organization. This role requires U.S. citizenship. Individuals hired into this role will be required to submit documentation proving U.S. citizenship within the first 7 days of hire - failure to do so will result in termination.

Job Responsibilities:

• Apply DevOps automation for CI/CD, configuration management, and environment management (non-prod and prod)
• Provision and manage environments; configure pipelines and infrastructure (VMs/containers)
• Improve availability, scalability, latency, and efficiency of services, with emphasis on Legal Technology platforms
• Own reliability and performance of critical applications (LRS, E-Core, LEEP)
• Participate in on-call rotation (~1 week every 2 months); respond to alerts/incidents
• Lead incident response, root cause analysis, and post-incident improvements
• Build and enhance observability (dashboards, alerts), runbooks, and automation
• Partner with engineering to design for reliability and eliminate recurring issues in distributed systems
• Drive improvements in delivery and operations (cloud enablement, microservices, containerization, zero-downtime deployments)
• Mentor SREs and guide reliability practices across the team
   

Education and Work Experience:

• Bachelor’s Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience
• 4–7+ years relevant experience (Required)
• Experience in Agile/DevOps environments (Required)
• Proficiency in one or more: Java, Python, Go, C/C#, or scripting (Shell/Perl) (Required)
• Experience with DBMS (Postgres or Oracle) (Required)
• Experience with CI/CD tools (e.g., Jenkins) and DevOps tools (GitHub/GitLab, Chef/Puppet) (Required)
• Experience with Docker, Kubernetes (Required)
• Experience with APM/observability tools (e.g., Splunk, Grafana, AppDynamics) (Required)
• Experience in cloud environments (Preferred)
• Experience troubleshooting distributed systems using logs/metrics/traces (Required)
• Experience with high-availability or regulated environments (Preferred)
• Experience leveraging AI-assisted tools (e.g., Copilot, ChatGPT) (Preferred)
   

Knowledge, Skills and Abilities:

• DevOps (Required)
• Integration (Required)
• Cloud Computing (Preferred)
• Strong troubleshooting in distributed systems
• Ability to operate in production environments and respond to incidents
• Ownership mindset with focus on reliability and continuous improvement
   

Additional Role Context:

• Work on systems supporting law enforcement and emergency response
• Contribute to platforms with potential public safety impact
• Modern, evolving platform with opportunity to influence arch