Engineer 4, Software Development & Engineering - Backend Engineering

We are seeking a Senior Automation Engineer to design, build, and operate the automation, tooling, and platform services that power a large-scale Content Delivery Network (CDN). Our CDN delivers petabytes of video traffic and billions of transactions daily, supporting mission-critical, high-availability streaming and application workloads.

This role is responsible for the automation and reliability of systems built on Apache Traffic Control (control plane) and Apache Traffic Server (data plane caching proxy). The ideal candidate is a systems thinker with deep experience in distributed systems, infrastructure as code, and large-scale production environments.

You will work closely with CDN Operations, Network Engineering and Software Development teams to ensure scalable, secure, and highly automated delivery infrastructure., Platform Automation & Tooling

• Design and maintain automation frameworks supporting CDN provisioning, configuration management, and lifecycle management.
• Automate deployment, scaling, and upgrades of Apache Traffic Control and Apache Traffic Server clusters.
• Engineer automation to support traffic steering, configuration distribution, and edge node orchestration
• Build CI/CD pipelines for CDN configuration changes, application updates, and infrastructure rollouts.
• Develop APIs, scripts, and internal tools to streamline operational workflows.

Infrastructure & Reliability Engineering

• Architect highly available, fault-tolerant systems supporting petabyte-scale video delivery.
• Implement Infrastructure as Code (IaC) using tools such as Terraform, Ansible, or equivalent.
• Develop self-healing systems, health-check automation, and proactive remediation workflows.
• Lead efforts to improve system observability (metrics, logging, tracing) and reduce MTTR.

Operational Excellence

• Create runbooks, documentation, and automation to eliminate repetitive manual tasks.
• Participate in incident response and postmortems, driving systemic automation improvements.
• Collaborate with CDN Ops to ensure safe and reliable propagation of control plane (ATC) and data plane (ATS) changes.

Security & Compliance

• Implement secure automation practices including secrets management and certificate lifecycle automation.
• Enforce configuration consistency and auditability across distributed edge environments.

• 7+ years of experience in infrastructure engineering, DevOps, SRE, or automation engineering.
• Deep experience with Linux systems administration in large-scale distributed environments.
• Strong experience with:

• Infrastructure as Code (Terraform, CloudFormation, etc.)
• Configuration management (Ansible, Puppet, Chef)
• CI/CD platforms (Concourse, GitHub Actions, Jenkins, etc.)
• Scripting/programming (Python, Go, Bash, or similar)

Additional Desired Qualifications:

• Direct experience with Apache Traffic Control and Apache Traffic Server.
• Familiarity with BGP, Anycast, and advanced routing concepts.
• Experience with container orchestration (Kubernetes) and immutable infrastructure models.
• Experience operating in multi-cloud or hybrid environments., Content Delivery Networks (CDN), Linux, Scripting, Bachelor's Degree (Required)

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 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: $135,692.95 - $203,539.43

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