Sr Systems Reliability Engineer

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures employees receive a competitive base salary and compensation package, including multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches.

About the role

The Sr. System Reliability Engineer (SRE) guides and mentors other SREs and improves and protects the software and systems behind all of T-Mobile's IT services, including management of scalability, availability, latency, performance, security, and capacity, and delivering software faster, better, and cheaper.

From designing and maintaining CI/CD Pipelines to building the next generation of T-Mobile applications on cloud-native platforms, SREs enable great customer experience and product innovation through continuous improvement of operational support. We pride ourselves on encouraging a culture of innovation, advocating for agile methodologies, and promoting transparency.

The Compliance Campaign Management (CCM) team within T-Mobile's Identity Security and Access Management (ISAM) organization is leading a major transformation in logical access compliance. What was once a predominantly manual User Access Review process is rapidly evolving into a sophisticated, automation-driven platform powered by cloud technologies, APIs, workflow orchestration, and artificial intelligence.

Our team designs and builds solutions using Power Platform, Azure DevOps Pipelines, Microsoft Graph APIs, and AI-powered automation to streamline compliance operations while expanding risk visibility across the enterprise. As a Senior Systems Reliability Engineer (SRE), you will play a critical leadership role in shaping and operating the platform that powers this transformation.

You will own the reliability, scalability, observability, and continuous improvement of this compliance automation ecosystem, ensuring it remains highly available, performant, secure, and audit-ready as it grows across the enterprise. This role involves driving engineering excellence, establishing reliability standards, championing automation-first practices, and leading efforts to improve resilience, monitoring, incident response, and operational maturity.

Join a team that's not just supporting compliance but engineering the future of access governance. You'll solve complex enterprise-scale challenges, influence strategic technology decisions, mentor engineers, and help build intelligent automation capabilities that redefine how access risk is identified, reviewed, and remediated at T-Mobile.

Responsibilities

• Utilize DevOps automation tools to enhance continuous integration and continuous delivery pipelines for non-production environments.
• Manage environments through automated server provisioning and pipeline configuration to support virtual machines.
• Deliver software improvements that increase availability, scalability, latency, and efficiency of IT services.
• Create and maintain dashboards for continuous monitoring and health checks to improve service quality in non-production environments.
• Contribute to software delivery process improvements including cloud enablement and microservices containerization.
• Mentor and guide systems reliability engineers and vendor resources to support team development and performance.
• Architect scalable, modular automation frameworks that allow compliance workflows to expand across new control types, compliance frameworks, and operational domains without re-engineering.
• Design automated validation and accuracy verification patterns across agent and workflow pipelines, ensuring repeatable, measurable output quality that supports continuous improvement, operational agility, and audit readiness at scale.
• Perform other duties/projects assigned by business management as needed.

Requirements

• Bachelor's Degree plus 5 years of related work experience OR Advanced degree with 3 years of related experience.
• 4-7+ years of relevant experience.
• Experience working in an Agile and DevOps environment.
• Experience in one or more of: C, C#, Java, Perl, Python, Go, or scripting experience in Shell and Perl.
• Experience in Continuous Integration/Continuous Delivery tools, such as Jenkins, Cloudbees, etc., and other automation tools.
• Experience with DevOps tools, such as Ansible, Chef, Puppet, etc.
• Experience in Docker, Kubernetes, etc. is preferable.
• Experience in APM tools like AppDynamics, logging tools like Splunk.
• Experience working in a cloud environment (public/private).
• Experience in migrating to cloud or cloud-native environments is preferable.

Skills

• Required:
  • Python or comparable programming language experience.
  • Red Hat Ansible or comparable orchestration technologies.
  • Automation Architecture and Scalable Framework Design experience.
  • Platform Engineering and Reusable Pipeline Design.
• Preferred:
  • Agentic workflow design, orchestration, and operational governance.
  • Automated testing and output validation framework design.
  • Human-in-the-loop system architecture for regulated workflows.
  • API-first integration architecture for enterprise-scale automation platforms.
  • Compliance or regulatory workflow automation in identity, access, or financial controls environments.

Pay

Base Pay Range: $98,500 - $177,700. The successful candidate’s actual pay will be based on work location, qualifications, and experience. Corporate Bonus Target: 15%. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance.

Benefits

• Medical, dental, and vision insurance.
• Flexible spending account.
• 401(k) with company match.
• Employee stock grants and employee stock purchase plan.
• Paid time off and up to 12 paid holidays (about 4 weeks for new full-time employees and about 2.5 weeks for new part-time employees annually).
• Paid parental and family leave.
• Family building benefits.
• Back-up care and enhanced family support.
• Childcare subsidy.
• Tuition assistance and college coaching.
• Short- and long-term disability.
• Voluntary AD&D, accident, life, and long-term care insurance.
• Mobile service and home internet discounts.
• Pet insurance.
• Commuter and transit programs.