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

Sr. Engineer, Software

United States, Frisco 113600.00 - 205000.00 USD / Year · Job Posted April 20, 2026
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Job Description

The FinTech Platform team is seeking a Senior backend development Engineer will collaborate with a team of software engineers to design, implement, and deploy complete, cloud-native systems that meet customer requirements. This role focuses on the creation, enhancement, and maintenance of software solutions, which typically include back-end services, microservices, databases, and the cloud infrastructure required to support deployment and operations. The engineer is responsible for owning the end-to-end software lifecycle — from development to deployment and support. As a generalist, the Senior Engineer is expected to have broad knowledge across the full technology stack. We take pride in fostering a culture of innovation, embracing agile methodologies, and promoting transparency in all aspects of our work. Join us in embodying the spirit of the Un-carrier and make a tangible impact! Our team is dynamic, diverse, and no two days are ever the same.

Job Responsibility

  • Design and develop end-to-end backend development solutions, covering both backend and frontend components
  • Conduct code reviews, provide technical guidance, and mentor junior and mid-level team members
  • Develop and schedule automated jobs and microservices, establishing new patterns and orchestration workflows
  • Design and implement data storage solutions using both relational (e.g., PostgreSQL) and non-relational databases
  • Deploy and manage cloud infrastructure using Infrastructure as Code (IaC) tools such as Terraform or CloudFormation
  • Evaluate and recommend emerging cloud services, tools, and architectural patterns to optimize system performance and scalability
  • Propose and champion innovative solutions to improve existing systems, processes, and services
  • Introduce and apply modern frameworks and technologies to enhance platform capabilities and technical velocity
  • Partner with product owners and engineering teams to break down features into user stories, estimate complexity, and plan sprints
  • Stay current with emerging technologies and continuously invest in skill development and cross-training
  • Effectively communicate technical ideas, constraints, and trade-offs to both technical and non-technical stakeholders
  • Demonstrate strong ability to quickly learn new tools and frameworks in dynamic development environments
  • Maintain awareness of the organization’s technology roadmap and contribute to long-term platform planning
  • Track and analyze industry trends, incorporating best practices and forward-thinking engineering techniques into day-to-day work

Requirements

  • Bachelor's Degree Computer Science or Engineering, or related technical field
  • 4-7 years Technical engineering experience
  • 4+ years of backend development experience, with strong proficiency in backend technologies such as Java and RESTful Web Services
  • 4+ years of software engineering experience delivering robust, scalable, and secure applications
  • 3+ years of hands-on experience designing and developing ETL pipelines for data ingestion, transformation, and integration
  • 3+ years of working experience with cloud platforms, primarily the AWS ecosystem — including services like EC2, S3, RDS, Lambda, CloudWatch, ECS/EKS, and IAM
  • 2+ years in DevOps and Infrastructure as Code (IaC) practices using tools like Terraform, CloudFormation, or AWS CDK
  • 3+ years of experience designing and maintaining both SQL and NoSQL database systems, including strong proficiency in PostgreSQL
  • Communication
  • Customer Service
  • Analytics
  • Technical Writing
  • At least 18 years of age
  • Legally authorized to work in the United States

Nice to have

  • 2+ years of professional experience in the FinTech industry, with a focus on regulated environments, compliance, or financial data platforms
  • Frontend experience is a plus

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
  • Employee stock grants
  • Employee stock purchase plan
  • Paid time off
  • 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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