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T-Mobile Logo T-Mobile · IT - Software Development

Senior Software Engineer, Platform

United States, Philadelphia 116000.00 - 209300.00 USD / Year · Job Posted March 19, 2026
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Job Description

This role is essential for developing and optimizing platform services that support the software development lifecycle and cloud infrastructure. It involves designing, deploying, and enhancing platform architecture with a focus on security, cost-efficiency, and operational excellence. The position requires collaboration with engineering, data, and product teams within an Agile environment to improve platform capabilities. Success is measured by the robustness, efficiency, and automation of platform services that enhance developer and customer experience. The work directly impacts the technological framework that supports organizational objectives and customer solutions.

Job Responsibility

  • Design and deploy platform services to improve infrastructure performance, security, and cost-efficiency
  • Optimize existing platform services to efficiently handle core data workloads
  • Collaborate with engineering, data, and product teams to advance platform capabilities
  • Implement automation and operational improvements to enhance developer experience
  • Ensure robust platform architecture through practical engineering solutions
  • Participate in code review sessions to ensure the quality and security of code and configuration
  • Triage and remediate alerts from service monitoring and security events
  • Work within an Agile environment to streamline processes and increase productivity
  • Also responsible for other duties/projects as assigned by business management as needed

Requirements

  • Bachelor's Degree plus 3 years of related work experience
  • OR advanced degree with 1 year of related work experience
  • OR combination of education and experience deemed equivalent
  • Acceptable areas of study include Computer Science or Related Field
  • 4-7 years Developing and deploying platform services with a focus on automation and operational excellence
  • 4-7 years Optimizing infrastructure for performance, security, and cost-efficiency in a cloud environment
  • Expertise in applying Agile practices and principles
  • Ability to lead platform engineering teams, providing technical guidance and support
  • Strong analytical skills to solve complex technical issues
  • Effective in working cross-functionally with various teams
  • In-depth understanding of cybersecurity principles
  • Knowledge of cloud services and architectures to support scalable and secure platform solutions, AWS highly preferred
  • Skilled in automating processes to enhance platform efficiency
  • Experience with any (2) of the following languages: Go, Java, Scala, Python, JavaScript
  • At least 18 years of age
  • Legally authorized to work in the United States

Nice to have

  • 4-7 years Collaborating with engineering, data, and product teams in an Agile environment to advance platform capabilities
  • Skilled in automating processes to enhance platform efficiency
  • Certified Kubernetes Administrator (CKA)
  • AWS Certified Solutions Architect
  • Certified Information Systems Security Professional (CISSP)

What we offer

  • Competitive base salary and compensation package
  • Annual stock grant
  • Employee stock purchase plan
  • 401(k)
  • Access to free, year-round money coaches
  • Medical, dental and vision insurance
  • Flexible spending account
  • Paid time off and up to 12 paid holidays
  • 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
  • Voluntary long-term care insurance
  • Mobile service & home internet discounts
  • Pet insurance
  • Access to commuter and transit programs
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