Sr Platform Engineer

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That's how we're UNSTOPPABLE for our employees!

Are you passionate about the power of AI and data to transform customer experiences?

Our team is searching for a Sr Platform Engineer who will be a strategic and hands-on technical leader, responsible for developing, deploying, and optimizing scalable, secure, and resilient platform services that support our core data workloads. You'll build and improve critical infrastructure across platforms including Databricks, Apache Spark, Snowflake, and Unity Catalog-ensuring performance, security, and cost-efficiency.

This role blends platform architecture with hands-on engineering and a strong emphasis on developer experience, automation, and operational excellence. You'll operate in an Agile environment, collaborating closely with engineering, data, and product teams to craft and evolve our platform capabilities.

We pride ourselves on encouraging a culture of innovation, advocating for agile methodologies, and promoting transparency in all that we do. Join us in embodying the spirit of the 'Un-carrier' and make a tangible impact! If you are passionate about driving excellence and want to make a significant impact, apply today!

Responsibilities:

Platform Architecture & Operations: Design, develop, deploy, and maintain platform infrastructure with a focus on scalability, fault tolerance, and observability. Spark, Databricks, and Snowflake Engineering: Lead the configuration, optimization, and support of Databricks workspaces, Apache Spark jobs, Snowflake workloads, and cluster performance across multiple environments.

Data Platform Migration: Support and manage migration use cases between Snowflake and Databricks, ensuring minimal disruption and architectural consistency.

Unity Catalog Governance: Administer and scale Unity Catalog with fine-grained access controls, lineage tracking, and compliance alignment.

Developer Experience & Automation: Develop internal tools, CI/CD pipelines, and infrastructure-as-code to streamline delivery and reduce toil.

AI/LLM Readiness: Understand emerging AI/LLM (large language model) platform features and ensure our infrastructure is prepared for future integration.

Workload Optimization & Cost Efficiency: Continuously monitor and optimize resource usage to improve performance and reduce infrastructure costs.

Incident Leadership: Lead incident response and root cause analysis with a focus on learning, transparency, and prevention.

Technical Mentorship: Provide code reviews, architectural guidance, and support for peers and junior engineers.

Agile Collaboration: Work in a 2-week sprint Agile model to deliver high-quality platform features and improvements.

Cross-Functional Partnership: Collaborate with data, security, compliance, and product teams to ensure alignment between technical solutions and business objectives.

Knowledge, Skills and Abilities:

*Required Qualifications

5+ years in platform engineering, DevOps, or SRE roles with exposure to data infrastructure

Strong development experience across infrastructure and platform services Hands-on expertise with Databricks, Apache Spark, and Snowflake in production environments

Proficiency in infrastructure-as-code (e.g., Terraform, Pulumi) and CI/CD pipelines

Deep understanding of cloud services (AWS, Azure, or Google Cloud Platform)

Skilled in scripting/programming (Python, Bash, Go, etc.)

Familiarity with observability tools (Datadog, Prometheus, Grafana, ELK, etc.)

Proven experience working in Agile environments using a 2-week sprint model Strong incident management and system tuning experience

Excellent communication and cross-functional collaboration skills

*Preferred Qualifications

Experience with Kubernetes and Spark-on-Kubernetes deployments Knowledge of Databricks REST APIs, workspace automation, and access controls Familiarity with regulatory environments (SOC2, HIPAA, GDPR) Experience in performance tuning and cost optimization of data applications Understanding of AI/LLM platform capabilities and integration readiness Governance and RBAC design in Unity Catalog

Education:

Bachelor's degree or equivalent

• At least 18 years of age
• Legally authorized to work in the United States

Travel:
Travel Required (Yes/No): No

DOT Regulated:
DOT Regulated Position (Yes/No): No
Safety Sensitive Position (Yes/No): No

Base Pay Range: $116,000 - $209,300

Corporate Bonus Target: 15%

The pay range above is the general base pay range for a successful candidate in the role. The successful candidate's actual pay will be based on various factors, such as work location, qualifications, and experience, so the actual starting pay will vary within this range.

At T-Mobile, employees in regular, non-temporary roles are eligible for an annual bonus or periodic sales incentive or bonus, based on their role. Most Corporate employees are eligible for a year-end bonus based on company and/or individual performance and which is set at a percentage of the employee's eligible earnings in the prior year. Certain positions in Customer Care are eligible for monthly bonuses based on individual and/or team performance. To find the pay range for this role based on hiring location, ;paradox=1

At T-Mobile, our benefits exemplify the spirit of One Team, Together! A big part of how we care for one another is working to ensure our benefits evolve to meet the needs of our team members. Full and part-time employees have access to the same benefits when eligible. We cover all of the bases, offering medical, dental and vision insurance, a flexible spending account, 401(k), employee stock grants, employee stock purchase plan, paid time off and up to 12 paid holidays - which total 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, enhanced family support, childcare subsidy, tuition assistance, college coaching, short- and long-term disability, voluntary AD&D coverage, voluntary accident coverage, voluntary life insurance, voluntary disability insurance, and voluntary long-term care insurance. We don't stop there - eligible employees can also receive mobile service & home internet discounts, pet insurance, and access to commuter and transit programs! To learn about T-Mobile's amazing benefits, check out ;br>
Never stop growing!
As part of the T-Mobile team, you know the Un-carrier doesn't have a corporate ladder-it's more like a jungle gym of possibilities! We love helping our employees grow in their careers, because it's that shared drive to aim high that drives our business and our culture forward. By applying for this career opportunity, you're living our values while investing in your career growth-and we applaud it. You're unstoppable!

T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, religious affiliation, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination, retaliation or harassment based upon any of these factors is wholly inconsistent with how we do business and will not be tolerated.

Talent comes in all forms at the Un-carrier. If you are an individual with a disability and need reasonable accommodation at any point in the application or interview process, please let us know by emailing or calling 1-. Please note, this contact channel is not a means to apply for or inquire about a position and we are unable to respond to non-accommodation related requests.