Senior Mobile Systems Architect, MVNO & Roaming

Comcast; Philadelphia (Philadelphia County); On-site; USD 150,000 - 230,000; Full time

Job summary

Comcast is seeking an experienced Principal Engineer to provide technical leadership for Xfinity Mobile across multi-MNO environments. This role focuses on international roaming, service assurance, and translating network capabilities into scalable software solutions.

The role requires strong architecture skills, hands-on software collaboration, and the ability to lead cross-functional teams across engineering and operations in a fast-paced telecom ecosystem.

Qualifications

• Extensive experience in telecommunications, wireless systems, software architecture, systems engineering, or related engineering disciplines.
• Strong understanding of mobile network and MVNO architectures.
• Experience designing solutions in multi-MNO, MVNO, or carrier-integrated environments.
• Demonstrated ability to translate network, product, and partner capabilities into system and software requirements.

Responsibilities

• Lead end-to-end solution architecture for Xfinity Mobile capabilities spanning multiple MNOs, Comcast applications, and business/product partner integrations.
• Translate network capabilities, partner interfaces, service behaviors, and product needs into system architecture and clear, testable software requirements.
• Serve as a technical bridge between MVNO/network engineering and software development teams, helping translate telecom capabilities into scalable software solutions.
• Evaluate differences in MNO capabilities and interfaces and develop solution patterns that support common Xfinity Mobile capabilities while accommodating MNO-specific requirements where needed.
• Develop architecture diagrams, end-to-end call flows, interface specifications, APIs, event flows, and functional and non-functional requirements.
• Provide technical leadership for international roaming and roaming product service assurance, including monitoring, observability, troubleshooting, and operational capabilities.
• Define requirements for highly available and resilient applications, including scalability, security, configuration management, failure handling, recovery, logging, monitoring, and alerting.
• Partner with software engineering teams throughout architecture, design, development, and production readiness.
• Analyze complex issues spanning MNO capabilities, partner platforms, Xfinity Mobile applications, and supporting infrastructure and drive cross-functional technical resolution.
• Evaluate solution alternatives and technical trade-offs considering customer experience, reliability, operational complexity, extensibility, cost, and time to market.
• Lead architecture and design reviews and provide technical guidance and mentorship across engineering teams.
• Influence technical direction across product, engineering, operations, MNO, and partner organizations.

Skills

MVNO Architecture

Application Development

Software Architectures

Wireless Systems

Distributed System Design

Mobile Core Network

Education

Bachelor's Degree

Tools

Kafka

Job description

Comcast is seeking an experienced Principal Engineer to provide technical leadership for Xfinity Mobile across multi-MNO environments. This role focuses on international roaming, service assurance, and translating network capabilities into scalable software solutions.

The role requires strong architecture skills, hands-on software collaboration, and the ability to lead cross-functional teams across engineering and operations in a fast-paced telecom ecosystem.