Sr Engineer, Software [T500-22828]

About T-Mobile:

T-Mobile US, Inc. (NASDAQ: TMUS), headquartered in Bellevue, Washington, is Americas 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 companys 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.

What Youll Do:

• Design, build, and operate secure, cloud-native services and automation platforms that reduce cyber risk and eliminate manual security processes.
• Develop backend services and APIs (Java/Spring, C#/.NET Core, or Go) to orchestrate identity, detection, response, and compliance workflows.
• Build event-driven and data-driven automation integrating security tools, cloud platforms, and enterprise systems.
• Design and implement scalable, high-availability components, making sound decisions on performance, resilience, and failure handling.
• Integrate AI-enabled capabilities (LLMs, RAG, embeddings) to improve automation accuracy, analyst productivity, and response effectiveness.
• Deploy and operate services on AWS and Azure, leveraging managed services, serverless components, containers, and Kubernetes.
• Contribute to CI/CD pipelines, infrastructure-as-code, and DevOps practices to enable reliable, repeatable releases.
• Participate in design, code, and security reviews, ensuring secure-by-design and engineering best practices.
• Collaborate with cybersecurity architects, product partners, and SRE teams to deliver reliable, observable, production-ready systems.
• Troubleshoot production issues, implement fixes, and continuously improve reliability, performance, and security posture.
• Mentor engineers and help raise overall engineering quality and security maturity.
• Participate in innovative efforts and recommend tools, patterns, and process improvements.
• Perform additional duties and projects as assigned.

What Youll Bring:

• 5+ years of professional software engineering experience, or an advanced degree with equivalent experience.
• Bachelor's or master's degree in computer science, Software Engineering, Information Management, or equivalent practical experience.
• Proven experience building enterprise-grade software applications, including full-stack delivery.
• Strong experience building automation platforms or event-driven systems that orchestrate workflows across multiple services.
• Deep backend engineering expertise using Java/Spring, C#/.NET Core, or Go, including API design and development.
• Proficiency with at least one major backend stack and one modern frontend framework.
• Hands-on experience with AWS and/or Azure, including managed services and serverless architectures.
• Strong understanding of cloud-native design, distributed systems, and integration patterns.
• Experience with CI/CD pipelines, DevOps practices, automated testing, Docker, and Kubernetes.
• Solid experience with relational and NoSQL databases, including:
• Strong SQL skills and query optimization
• Data modeling for automation and event processing
• Experience with ETL, data integration, or data migration projects, including workloads with critical SLAs.
• Background building systems for migrations, conversions, or enterprise-scale B2C platforms.
• Experience designing internal frameworks, shared libraries, or reference architectures.
• Working knowledge of secure coding practices, IAM, secrets management, and remediation of security findings.
• Experience working with security-focused systems or domains (identity, vulnerability management, detection/response, compliance automation).
• Familiarity with metadata-driven or low-code data integration frameworks.
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Must Have Skills:

• Strong backend development using Java/Spring, C#/.NET Core, or Go
• Experience building cloud-native, enterprise-grade applications
• Proven work on automation or event-driven systems
• Hands-on experience with AWS and/or Azure
• Solid understanding of distributed systems and integration patterns
• Experience with CI/CD, DevOps, Docker, and Kubernetes
• Strong experience with APIs, relational/NoSQL databases, and SQL
• Knowledge of secure coding, IAM, secrets management, and fixing security findings
• Experience with security-related platforms or domains
• Experience with automated testing (unit, integration, security)
• Experience building or supporting UI components (e.g., React)

Nice To Have:

• Experience with AI-enabled automation (LLMs, RAG, embeddings)
• Experience building security automation or SOAR solutions
• Familiarity with observability, reliability, or SRE practices
• Experience with infrastructure-as-code (Terraform, ARM, Bicep)
• Exposure to AIOps or anomaly detection
• Experience working in containerized Linux environments (Kubernetes, OpenShift)
• Experience mentoring engineers or building shared frameworks