> Markdown version of [/jobs/ext/2533786-principal-engineer-billing-systems-design](https://www.wearedevelopers.com/jobs/ext/2533786-principal-engineer-billing-systems-design). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Engineer- Billing Systems Design

- **Company:** T-Mobile Us, Inc.
- **Location:** Bellevue, WA, United States
- **Experience:** Expert
- **Salary:** $118,200.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Network Architecture, Network Planning and Design, Information Technology
- **Published:** August 4, 2026
- **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/17844722?backUrl=%2Fcareer%2F17844722%2FPrincipal-Engineer-Billing-Systems-Design-Washington-Bellevue

## About the Role

* Bachelor's Degree plus 7 years of related work experience OR Advanced degree with 5 years of related experience (Required)
 * Acceptable areas of study include Engineering/Computer Science (Required)
 * 7-10 years Technical engineering experience. (Required)
 * Telecom Billing Domain experience (Preferred)

Knowledge, Skills and Abilities:

 * Hands-on development experience with C and C+ (Required)
 * Analytical Thinking (Required)
 * Capacity Planning (Required)
 * Communication (Required)
 * Feasibility Studies (Required)
 * Mentorship (Required)
 * Network Architecture (Required)
 * Network Design (Required)
 * Systems Engineering (Required)
 * Technical Writing (Required)
 * Technology Roadmap (Required)

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

## Description

* Lead the design and validation of network systems to maximize reliability, performance, and cost efficiency
 * Develop and maintain technical documentation and presentations to communicate design benefits to diverse audiences
 * Drive engineering projects by applying techniques, conducting tests, and supervising engineering teams to meet objectives
 * Analyze and implement technology improvements to optimize network processes and support business requirements
 * Monitor industry technologies and standards to inform design decisions and influence organizational technology strategies
 * Evaluate new and existing technologies to align with business goals and support network evolution
 * Also responsible for other duties/projects as assigned by business management as needed


## Related Videos

- [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone)
- [Enabling intelligent logistics automation: home-grown Industrial IoT platform at Austrian Post](https://www.wearedevelopers.com/videos/2018-enabling-intelligent-logistics-automation-home-grown-industrial-iot-platform-at-austrian-post)
- [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process)
- [AI-Augmented DevOps with Platform Engineering](https://www.wearedevelopers.com/videos/1614-ai-augmented-devops-with-platform-engineering)
- [Future-Proofing FinTech With Blockchain Technology](https://www.wearedevelopers.com/videos/808-future-proofing-fintech-with-blockchain-technology)
- [It's not easy being green](https://www.wearedevelopers.com/videos/558-it-s-not-easy-being-green)

## Related Articles

- [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)
- [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)
- [IT Salaries in Germany](https://www.wearedevelopers.com/magazine/287-it-salaries-in-germany)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [What Jobs Can You Get with a Software Engineering Degree?](https://www.wearedevelopers.com/magazine/398-what-jobs-can-you-get-with-a-software-engineering-degree)
- [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know)