Comcast
Principal Engineer, Xfinity Mobile Systems & Software Architecture
PA - Philadelphia, 1800 Arch St · Principal · Full-time · Posted Oct 21, 2026
- Experience
- 10 Years +
- Education
- Bachelor's Degree preferred; Comcast may also consider some combination of coursework and experience, or extensive related professional experience.
About the job
Leads end-to-end architecture for Xfinity Mobile systems and multi-MNO integrations, initially focusing on international roaming and service assurance.
What you'll do
- Translate network, partner, and product capabilities into system architecture, software requirements, interface specifications, and end-to-end call flows.
- Provide technical leadership for roaming service assurance, including observability, troubleshooting, and operational capabilities.
- Lead architecture reviews, guide engineering teams, and drive cross-functional resolution of complex technical issues.
What they ask for
- Strong understanding of mobile network and MVNO architectures.
- Experience designing complex distributed systems and integrations.
- Experience designing highly available, resilient, scalable, and operationally supportable applications.
- Bachelor's Degree preferred; coursework and experience or extensive related professional experience may also be considered.
Nice to have
- Experience with international roaming products, systems, or service assurance.
- Knowledge of 4G/LTE and 5G architectures and mobile services.
Tools
REST APIs, Kafka, 4G/LTE, 5G, SIM/eSIM, microservices, OSS/BSS, MVNO
Model-written summary · the original posting is authoritative