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Sr. DevOps Engineer, Product Development Engineering at Comcast (Philadelphia, PA)

Comcast brings together the best in media and technology. We drive innovation to create the world's best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative and fascinating businesses and create career opportunities across a wide range of locations and disciplines. We are at the forefront of change and move at an amazing pace, thanks to our remarkable people, who bring cutting-edge products and services to life for millions of customers every day. If you share in our passion for teamwork, our vision to revolutionize industries and our goal to lead the future in media and technology, we want you to fast-forward your career at Comcast.

Are you passionate about finding and fixing issues in one of the largest and most complex networks in the world? Do you like the challenge of being in an on-call rotation in a high pressure 24/7 operations environment? Are you at your best when facing a complex issue at 3am and it is on you to mitigate the impact? If so, this role may be for you.

As a member of the LIVE (Linear Infrastructure Video Engineering) team within the VISE (Video Infrastructure and Security Engineering) organization, the primary task is to support operational engineering, data collection, analysis, monitoring and metrics configurations, application deployments, as well documentation and procedure development for Comcast Video Services and Video Platforms product lines.

In your role, you will bridge the gap between development and operations. Tasks will include but not limited to, implementing monitoring, metrics, and alerting configurations to quantify scope of reported linear video issues using tools and technology such as Grafana Kibana, InfluxDB, Prometheus, and Kubernetes. Create new metrics and identify monitoring deliverables to improve site reliability. Evaluate new code releases for basic reliability and provide systems integration support to our access network and divisional partners for deploying remote phy markets, and provide guidance to QA, Development, and Divisional/Regional stakeholder teams.

You'll be working with some of the best and brightest minds in Comcast to while we operate and improve the video delivery infrastructure that will power the next generation of television. Success in this role is characterized by a stable and robust platform, with fewer customer-facing issues, defects and outages.


  • Function as a key member of the team responsible for the day-to-day system administration and operation of Comcast's video delivery systems with concentration on metrics data collection, analysis, reporting, tools and solutions development (dashboard development), systems integration, and operational support.
  • Participate in 24/7 On-Call rotation.
  • Participate in the design review of new technical features and architecture changes to the Linear Video delivery systems.
  • Perform Linux system administration, installation, configuration, and troubleshooting on hundreds of bare metal servers.
  • Participate in planning, testing and execution of system and application level upgrades.
  • Perform troubleshooting of Linear Video issues and problem resolution activities with other support teams (e.g. network support, divisional support, and vendors).
  • Produce Root Cause Analysis that focuses on recommendations and lessons learned and avoid problem recurrence.
  • Become proficient with Kubernetes command line interface for running commands against Kubernetes clusters.
  • Assemble training materials for divisional support to enable divisional and customer care support capabilities.
  • Maintain productive relationships with peer organizations & and vendors.
  • Ability to travel required.

Here are some of the specific platforms and technologies we work with:

  • Linear Video
    • Audio/Video Compression MPEG
    • Multiplexing CAP1000
    • Edge QAM APEX1000, NSG
    • QAM to IP and IP to QAM Conversion
    • IP Video CIF Dash
    • Harmonic Prostream
    • SEMs
  • Linear Video DAI (Digital Ad Insertion)
    • Spotlight back office
  • CDN
    • Traffic Monitor
    • Traffic Router
    • Traffic Operations
    • Traffic Stats
    • ATS (Apache Traffic Server)
  • Cloud and Network Infrastructure
    • Cisco & Juniper Routers
    • F5 load balancers
    • VMWare, OpenStack
  • Logging/Monitoring/Host Management
    • ELK
    • Grafana
    • Prometheus
    • Puppet
    • Git

Skills & Requirements

  • 10+ years' experience in Linear Video
  • 5+ years UNIX/Linux administration
  • 3+ year's in-depth experience with IP networking (TCP/IP packet analysis with tcpdump and Wireshark, DNS, SNMP etc.)
  • Experience with open source tools and technologies such as Prometheus, Alert Manager, Elastic Search, Kibana, and Grafana
  • Experience with monitoring probes (Sentry, Sencore, Ineoquest)
  • Creation of shell scripts to automate tasks and perform basic data analysis.
  • Experience with Kubernetes/Docker is a plus

Comcast is an Equal Employment Opportunity/Affirmative Action/Drug-free workplace employer

by via developer jobs - Stack Overflow

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