Software Engineer (JavaScript)

at Comcast
Published February 21, 2024
Location Englewood, CO
Category Default  
Job Type Full-time  


Make your mark at Comcasta 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
As a Software Engineer on the JavaScript Player-Platform team, you will develop client-side libraries that are used by millions of people to stream Live, On-Demand, and Recorded content on desktop web browsers, casting-enabled devices, and dozens of Smart TVs and Set-Top Boxes

The Player-Platform JS is an SDK written in Typescript, that powers the IP video playback experience on the X1 Platform set-top boxes, and Xfinity Stream on many platforms. It provides a video player that integrates with our video streaming, content protection (DRM), advertisement, emergency alert, and real-time analytics services. PlayerPlatform strives to provide a high quality, consistent playback experience across all our integrations.

Who will you work with?

Player-Platform software engineers collaborate with industry experts from many subject areas: software architects, software engineers, data scientists, and other video streaming technologists. Daily, you will be working on a small scrum team that consists of product owners, software engineers, automation engineers, and quality assurance engineers. You will work closely with other technical teams internal and external to Comcast VIPER

What are some interesting problems you'll be working on?

The JavaScript Player Platform is integrated into a high number of environments with a complex requirement surface area. The complexity we face in integration is closer to an enterprise system than it is to a video player app. Designing toward and completing more flexible APIs and implementations to allow us to expand our integration footprint will be a constant focus.

Working to improve the reliability, and features of our IP Video customers, and give our multi-billion dollar advertising business a driven edge, are also a central focus.

Where can you make an impact?

Your code will be responsible for all IP video playback streaming that is done at Comcast. It will be run on customers' devices millions of times a week and will be the primary Comcast product that they interact with. You can help improve our video playback experience by developing the most stable, and the highest quality video player in the industry. You'll be working with the brightest minds in Comcast building a video platform that will power Comcast for years to come. You will drive the future of the IP video industry.

Job Description

What You'll Do:

  • Build clean API's for video playback on supported devices
  • Work with HTML5 video Media Source and Encrypted Media API Extensions (MSE & EME)
  • Build reusable software components in TypeScript
  • Design and implement end to end components related to video playback
  • Analyze, optimize, and improve the code base
  • Demonstrate personal and team leadership by showing dedication to integrator and customer success
  • Support operations personnel in maintaining a high standard of reliability.
  • Regular and consistent attendance.
  • Other duties and responsibilities as assigned.

What You'll Need:

  • 5+ years software development experience with some experience with Java Script application development or other related
  • Bachelor's Degree preferred or equivalent experience.
  • Computer science fundamentals
  • Can solve hard problems quickly by writing code
  • Knowledge of JavaScript within Web Browsers strongly encouraged
  • Experience designing clean, concise, maintainable APIs
  • Experience with HTTP video a plus
  • Good communicator and able to clearly articulate complex issues and technologies
  • Familiar with a scripting language
  • Ability to design, develop, and integrate a solution to completion
  • Comfortable working in a fast paced agile environment
  • Customer and team-focused attitude

Core Responsibilities

  • Collaborates with project stakeholders to identify product and technical requirements. Conducts analysis to determine integration needs.
  • Designs new software and web applications, supports applications under development and customizes current applications. Assists with the software update process for existing applications and roll-outs of software releases.
  • Participates in training representatives and operations staff on internally developed software applications.
  • Researches, writes and edits documentation and technical requirements, including software designs, evaluation plans, test results, technical manuals and formal recommendations and reports.
  • Monitors and evaluates competitive applications and products. Reviews literature, patents and current practices relevant to the solution of assigned projects.
  • Provides technical leadership throughout the design process and guidance with regards to practices, procedures and techniques. Serves as a guide and mentor for junior-level Software Development Engineers.
  • Works with Quality Assurance team to determine if applications fit specification and technical requirements.
  • Displays in-depth knowledge of engineering methodologies, concepts, skills and their application in the area of specified engineering specialty.
  • Displays in-depth knowledge of and ability to apply, process design and redesign skills. Presents and defends architectural, design and technical choices to internal audiences.
  • Displays knowledge of and ability to apply, project management skills.
  • 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.

Employees at all levels are expected to:

  • Understand our Operating Principles; make them the guidelines for how you do your job.
  • Own the customer experience - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services.
  • Know your stuff - be enthusiastic learners, users and advocates of our game-changing technology, products and services, especially our digital tools and experiences.
  • Win as a team - make big things happen by working together and being open to new ideas.
  • Be an active part of the Net Promoter System - a way of working that brings more employee and customer feedback into the company - by joining huddles, making call backs and helping us elevate opportunities to do better for our customers.
  • Drive results and growth.
  • Respect and promote inclusion & diversity.
  • Do what's right for each other, our customers, investors and our communities.


  • 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.

Primary Location Pay Range: $113,052.32 - $169,578.49

Comcast intends to offer the selected candidate base pay dependent on job-related, non-discriminatory factors such as experience. 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. 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.

The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.

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.

Certifications (if applicable)

Relative Work Experience
5-7 Years

Comcast is proud to be 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.