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Senior Principal CDN Software Engineer, VIPER

Company: Comcast
Location: Denver
Posted on: December 5, 2019

Job Description:

Comcast's Technology. Product Xperience. organization works at the intersection of media and technology. Our innovative teams are continually developing and delivering products that transform the customer experience. From creating apps like TVGo to new features such as the Talking Guide on the X1 platform, we work every day to make a positive impact through innovation in the pursuit of building amazing products that are enjoyable, easy to use and accessible across all platforms. The team also develops and supports our evolving network architecture, including next-generation consumer systems and technologies, infrastructure and engineering, network integration and management tools, and technical standards. We are looking for engineers to join our Content Delivery team. Do you love to build massive, distributed, and amazing systems? Are you passionate about open source software, and building systems using it? Do you like to add immediate, tangible business value? As an engineer in the CDN team, you will help build the infrastructure and develop software to support the systems that deliver IP content for a wide range of mobile and first-screen television devices. As part of the larger Comcast engineering teams, you will help shape the next generation of IP content delivery and transform the customer experience. Using the tenets of DevOps, you will have the opportunity to own the entire stack, from architecture to production. Who does the CDN engineer work with?Apache Traffic Control is the Open Source CDN control plane for which we lead the development, and this project represents our primary focus. Want to learn more? Visit There you will find the documentation, source code, and every open bug. We're a small but growing team, delivering state-of-the-art software solutions at the leading edge of CDN technology. What are some interesting problems you'll be working on?We deliver petabytes of traffic and tens of billions of transactions every day. Our software and infrastructure must reliably deliver an excellent customer experience, automatically and seamlessly converge around network and system events and provide the necessary telemetry and instrumentation for operational, planning and engineering use. Where can you make an impact?Thinking out of the box and considering the customer experience are key to our success. We never want to impact service unless it is in a positive manner. We need additional team members to follow their passion of engineering thought leadership, coding and contributing to the delivery code at the heart of many organizations! Responsibilities:

  • Provide technical leadership in a fast-paced environment
  • Participate in and contribute to our architectural advancement
  • Interact with the Open Source community with focus on Apache Traffic Control
  • Create design and engineering documentation
  • Keep current with emerging technologies in the CDN and surrounding knowledge spaces
  • Help ensure the system can scale in any dimension quickly and safely
  • Develop and improve automated validation environments
  • Improve system reliability and stability
  • Drive to ensure all changes made are positive to customer experience
  • Collaborate with project stakeholders to identify product and technical requirements
  • Conduct analysis to determine integration needs
  • Diagnose performance issues and propose and implement code improvements
  • Work with Quality Assurance team to determine if applications fit specification and technical requirements
  • Other duties and responsibilities as assigned. Here are some of the specific technologies we use with the CDN team:
    • Linux (CentoOS)
    • Git
    • HTTP(s) including HTTP caching
    • SQL
    • DNS
    • TCP/UDP
    • BGP
    • IPv6
    • Adaptive Bitrate Video Protocols
    • MPEG
    • Add database technologies section
      • PostgreSQL
      • InfluxDB
      • ClickHouse Preferred Skills:
        • Experienced technical leader 4+ years of technical leadership (Leadership not Management)
        • Good communicator; able to analyze and clearly articulate complex issues and technologies understandably and engagingly
        • Great design and problem-solving skills, with a strong bias for architecting at scale
        • Strong troubleshooting skills, adaptable, proactive and willing to take ownership
        • Able to work in a fast-paced environment
        • Strong familiarity with industry standards, specifications, standards bodies and working groups
        • Advanced networking knowledge (protocols, routing, switching, hardware, optics, etc)
        • Advanced knowledge of current, state-of-the-art hardware systems (storage, CPU, memory, network)
        • Advanced knowledge of software development, including the software development lifecycle
        • Working to advanced knowledge of database technologies such as RDBMS, time-series and column-oriented
        • Deep knowledge of GNU/Linux, including kernel tuning and customization About the CDN Team:CDN is a passionate and high paced team within Comcast's Technology and Product Division and is based in Denver's LoDo district. Our technology is open-source based, and our products deliver video and other content over IP infrastructure to an array of connected devices in and out of the home. About Viper:VIPER (Video IP Engineering & Research), is a division within Comcast's Core Platform Technologies team and spun out from IP Video and online projects originated within Comcast Interactive Media is based in downtown Denver, CO. We are a cloud-based, IP video infrastructure that's been built to deliver a broad mix of on-demand video, live TV streams and an assortment of other digital media to an array of connected devices in the home. Job Specifications:Bachelors Degree or EquivalentEngineering, Computer ScienceGenerally requires 15+ years related experienceComcast is an EOE/Veterans/Disabled/LGBT employer

Keywords: Comcast, Denver , Senior Principal CDN Software Engineer, VIPER, IT / Software / Systems , Denver, Colorado

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