Network Reliability Engineer

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.)
Job Summary
Comcast is seeking an Engineer 2, Network Engineering to support the lifecycle management of critical core network infrastructure across one of the nation's largest telecommunications networks. This role is responsible for developing and supporting automation solutions that enable the deployment, augmentation, upgrade, migration, and decommissioning of core network devices throughout their operational lifecycle. The successful candidate will combine networking expertise with software development and automation capabilities to improve configuration management, compliance validation, deployment processes, operational visibility, and network reliability. Working closely with engineering, operations, and architecture teams, this individual will help accelerate the modernization and scalability of Comcast's core network infrastructure while ensuring operational excellence across multi-vendor environments.
Job Description
This position is ineligible for visa sponsorship. To be considered for this role, you must be legally authorized to work in the United States and not require sponsorship for employment now or in the future.
Responsible for supporting the engineering, automation, and lifecycle management of core network infrastructure. Contributes to the deployment, augmentation, modernization, migration, and retirement of critical network devices that support Comcast's core network environment.
Uses networking, software development, and automation expertise to design and improve platforms, processes, and tools that streamline device lifecycle activities, configuration management, compliance validation, operational reporting, and large-scale network deployments. Collaborates with cross-functional teams to deliver scalable automation solutions that enhance network reliability, operational efficiency, and service delivery.
What You'll Do:

• Support the full lifecycle of network infrastructure, including deployment, upgrades, migrations, modernization initiatives, capacity expansion, and decommissioning activities.
• Develop and maintain Python-based automation solutions for network provisioning, configuration management, validation, compliance, and operational efficiency.
• Assist with network audits, configuration validation, compliance reporting, and large-scale configuration deployment across multi-vendor environments.
• Analyze network telemetry, operational data, configurations, and system logs to identify trends, troubleshoot issues, and improve network performance and reliability.
• Collaborate with engineering, operations, architecture, and software development teams to integrate automation, telemetry, and data-driven workflows into network operations.
• Support network changes, software upgrades, and infrastructure transformation initiatives while ensuring operational stability and deployment quality.
• Build and enhance automation frameworks for network validation, anomaly detection, testing, deployment assurance, and lifecycle management.
• Contribute to CI/CD, release management, and continuous improvement initiatives supporting network automation platforms.
• Document network systems, processes, automation workflows, and operational standards to support scalable and efficient operations.
• Provide technical recommendations and support strategic initiatives focused on network growth, modernization, reliability, and performance.

What You'll Need:

• Bachelor's or Master's degree in Computer Science, Network Engineering, or a related technical field.
• 2-3 years of experience in networking, systems engineering, network automation, or related infrastructure roles.
• Strong understanding of networking fundamentals, including TCP/IP, subnetting, OSI model, packet flow analysis, and routing protocols such as BGP, OSPF, ISIS, and EIGRP.
• Experience troubleshooting network connectivity and routing issues while supporting network device configurations in multi-vendor environments (Cisco, Juniper, Nokia, etc.).
• Proficiency in Python or similar scripting languages for network automation, operational tooling, data processing, and workflow optimization.
• Familiarity with network audits, configuration deployment, compliance validation, and network automation frameworks.
• Working knowledge of DevOps concepts including CI/CD pipelines, Git version control, infrastructure-as-code, and exposure to Docker and Kubernetes.
• Understanding of SQL and/or NoSQL databases and the ability to analyze network telemetry, configuration data, and operational datasets to drive network performance and reliability.
• Relevant industry certifications preferred, such as CCNA, JNCIA, or equivalent networking certifications.
• Strong analytical, troubleshooting, and problem-solving skills with the ability to learn quickly in a fast-paced environment.
• Effective communication and collaboration skills with the ability to work across engineering, operations, and business teams.
• Nice-to-have experience with AI/ML-assisted tools, network simulation platforms, or lab environments used for testing and validation.

Disclaimer: This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.
Comcast is an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.
Skills:
Cisco IP; Stakeholder Management; Juniper MX; Communication; Transmission Control Protocol (TCP); Network Operations; Scripting
Salary:
New Jersey Pay Range: $78,505.90 - $117,758.85
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.
Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That's why we provide an array of options, expert guidance and always-on tools, that are personalized to meet the needs of your reality - to help support you physically, financially and emotionally through the big milestones and in your everyday life. Please visit the compensation and benefits summary on our careers site for more details.
Education
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.
Relevant Work Experience
2-5 Years