Sr. Network Engineer - Core IP Engineering

Interface with Network Evolving Architecture teams to help lead technical direction for backbone and CRAN evolution, including development of scalable routing architectures (ISIS, BGP, LDP, RSVP TE/Segment Routing), optical transport integration (CDC ROADM, coherent optics, OTN), and the adoption of new IP, MPLS, and Ethernet standards across the Transport and IP layers. Responsibilities include defining and validating architectural roadmaps, leading lab and field trials, and driving beta and launch cycles for integrated voice, video, and data platforms across the converged IP network.

Additional responsibilities include backbone and CRAN telemetry architecture, real time analytics, automated network assurance, and optimization of traffic flows across global peering, private interconnects, and major content ecosystems to assist in escalations of troubleshooting network issues. You will influence standards alignment with IETF, MEF, OIF, and key industry forums, leading the integration of emerging technologies that improve cost efficiency, programmability, resiliency, and scalability across Comcast's national footprint.

This role operates within a fast paced Fortune 50 technology environment, contributing to end to end engineering that supports millions of customers. You will help drive continuous network evolution through automation, reliability engineering, and high velocity innovation. Responsibilities also include supporting Comcast's global peering ecosystem and ensuring seamless connectivity between Converged Regional Area Networks (CRANs) and the broader internet. The position plays a key role in advancing world class entertainment and connectivity experiences, while working within a collaborative, forward thinking culture that emphasizes teamwork, technical leadership, and industry innovation., * Applies tactical and strategic approaches to design and new product introduction; balances constraints and opportunities to drive engineering consensus for new product introduction and methodology.

• Interfaces across the ecosystem to ensure thorough vetting of solution.
• Leads matrixed teams and serves as network technical liaison with adjacent product and engineering teams to ensure smooth introduction of new products.
• Produces, reviews and coaches junior engineers' job roles in detailed design work, SMOP creation and operations execution of complex change across converged environment.
• Work in a heavily matrixed environment and act as integrated team member or leader with virtual teams to shorten R&D and Design cycle for new products and network evolution.
• Creates and documents high-level, detailed network designs.
• Communicates applicable design guidelines and provides guidance to ensure compliance.
• Strong initiative to build relationships both internally and externally with minimal supervision/direction from management.
• Consistent exercise of independent judgment and discretion in matters of significance.
• Regular, consistent and punctual attendance. Must be able to work nights and weekends, variable schedule(s) and overtime as necessary.
• Other duties and responsibilities as assigned.

• Senior-level expertise in core networking technologies, including:

• RIB/FIB architectures
• ISIS, BGP, LDP
• MPLS and Segment Routing
• RSVP and QoS
• Full-stack network knowledge spanning physical through application layers

• Strong analytical and problem-solving skills with the ability to troubleshoot complex networking environments

Preferred Skills & Qualifications

• Strong programming and automation experience with Python, Go, and Shell scripting, including translating complex networking workflows into automated solutions using tools such as Ansible, Puppet, Chef, and Zero-Touch Provisioning
• Experience with NoSQL databases (e.g., MongoDB, ArangoDB), and familiarity with CI/CD pipelines, DevOps practices, and Linux environments
• Proven ability to lead complex technical initiatives, interpret requirements, and drive operational integration while ensuring alignment with business and lifecycle standards
• Experience engaging with vendors for platform evaluation, feature alignment, and roadmap planning; ability to collaborate effectively with SMEs and cross-functional teams
• Strong organizational and project management skills, with the ability to operate effectively in matrixed environments
• Excellent verbal and written communication skills
• Industry certifications such as CCNA, CCNP, CCIE, JNCIA, JNCIP, or JNCIE are a plus
• Flexibility to support off-hours work, including nights, weekends, and overtime as needed
• Excellent attention to detail with a commitment to high-quality delivery, Automation, Networking Technologies, Problem Solving, Bachelor's Degree

While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.

Here's a look at just some of the perks and benefits we make available to our US-based employees:

• Medical & Dental
• 401(k) Savings Plan
• Generous paid time off
• Life Milestones - from adoption assistance, childcare resources, pet insurance, and more, Comcast supports you at all life stages.
• Courtesy Services - We offer all of our full-time employees in serviceable areas free digital TV and internet.
• Discount tickets for Universal Resorts, including theme park tickets and onsite hotel rooms., Primary Location Pay Range: $107,370.57 - $161,055.85

This job can be performed in Denver Campus with a Pay Range of $107,370.57 - $161,055.85

Comcast intends to offer the selected candidate base pay within this range, dependent on job-related, non-discriminatory factors such as experience. The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.

Make your mark at Comcast -- a Fortune 30 global media and technology company. From the connectivity and platforms we provide, to the content and experiences we create, we reach hundreds of millions of customers, viewers, and guests worldwide. Become part of our award-winning technology team that turns big ideas into cutting-edge products, platforms, and solutions that our customers love. We create space to innovate, and we recognize, reward, and invest in your ideas, while ensuring you can proudly bring your authentic self to the workplace. Join us. You'll do the best work of your career right here at Comcast. (In most cases, Comcast prefers to have employees on-site collaborating unless the team has been designated as virtual due to the nature of their work. If a position is listed with both office locations and virtual offerings, Comcast may be willing to consider candidates who live greater than 100 miles from the office for the remote option.)