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Job Details

Comcast Corporation

Sr. Software Engineer(C++, C), Trusted Computing Products and X1 Products - VIPER



Full Time

On Site


Philadelphia, Pennsylvania, United States

Comcast’s Technology, Product & Experience 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. Because our employees are our most valuable asset, we offer a flexible working environment to balance the need to work independently wherever you choose, with days that require collaboration at one of our offices. Our roles primarily reside inside or around one of our Tech Hubs (Philadelphia and surrounding suburbs, Denver, Austin, Silicon Valley, Washington DC/N. Virginia).

Job Summary

The Comcast Trusted Computing platform secures X1, the best Cable TV experience on the market. The Trusted Computing Products team is responsible for all aspects of the architecture, design, development, and operations of the identity provisioning and authentication, content encryption, and DRM license services that back the secure video delivery on Comcast's X1 platform. Our deliverables include client-side and embedded systems work that enables outstanding video experiences across a diverse set of platforms. TCP and X1 fall within Comcast’s Technology, Product, and Experience (TPX) organization. We are a diverse team with a laid-back work environment, casual attire, flexible work hours, and great benefits!

Job Description

As a Sr. Software Engineer on the Trusted Computing Products team is a hard-working and self-motivated individual with a strong technical background, showed talent in computer science fundamentals, and a history of successful contributions in a fast-paced and large-scale environment. Depending on the Engineer’s experience and interests, a project portfolio could include direct responsibility for architecture, development, and maintenance of client-side components. This is an outstanding opportunity to contribute to multiple platforms in a world class system and practice security systems engineering!

What You'll Do:

  • Work with internal customers and Trusted Computing Products team members to provide content security solutions.

  • Implement and test content solutions under the direction of technical leaders.

  • Observe industry software development standard processes: coding style/conventions, code reviews, static analysis, unit/integration tests, version control, etc.

  • Actively participate in design/code reviews providing feedback to ensure functionality, coding standards, accuracy, and testability targets are met.

  • Participate in Agile process ceremonies providing input for task definition, work estimates, planning, grooming, and retrospectives.

  • Provide technical assistance and mentorship to less experienced content protection engineers.

  • Provide ongoing support and maintenance of deployed products.

  • Participate in fixing/debug investigations and resolution efforts when necessary.

  • Pursue an active learning approach to content security, staying up to date on industry knowledge, trends, standard processes, and disseminates information to team members.

  • Regular, consistent and punctual attendance.

  • Other duties and responsibilities as assigned.

What You'll Need:

  • Minimum of 7 years of experience as an active contributor during all phases of the agile software development lifecycle with the ability to demonstrate specific and detailed individual contributions in the areas of architecture/design, development, testing, release, and maintenance.

  • A detailed understanding of common data structures and their usage within software applications. Experience and proficiency with common programming algorithms and their relative tradeoffs.

  • Proficiency with object-oriented development, data modeling, and common software design patterns.

  • Experience defining and employing document structures and data serialization techniques through one or more common formats (e.g., JSON, XML, or ASN1).

  • A sense of proud ownership and an ongoing desire to proactively enhance products and processes.

  • Strong English communications skills, with the ability to describe advanced technical concepts clearly, concisely, and accurately to diverse audiences in speech and in writing.

  • A Bachelor’s degree in Computer Science, Electrical Engineering, or a related field.

What Technology Skills Are Preferred:

  • Experience developing embedded software in a Linux/Unix environment, including basic system configuration, scripting, networking, and debugging.

  • Strong programming knowledge with C or C++

  • Experience with large scale open source-based software architectures and development practices.

  • Experience with SoC based software application development related to trusted applications completing in a dedicated TEE.

  • Experience working with standards-based cryptography and trust primitives (e.g., AES, RSA, Elliptic Curve, X.509 Certificates) applying standard cryptographic libraries e.g., OpenSSL.

  • Experience with IP video streaming protocols such as HLS or DASH and associated DRM content protection systems such as Widevine, PlayReady, or FairPlay DRM systems.

  • Experience developing applications for TVs, Set Top Boxes, Streaming devices, Android devices, iOS devices, and web applications.

  • Experience authoring and refining technical specifications.

  • Experience with development in languages such as Java, Kotlin, Swift, Objective C, and Javascript.

  • A Master’s degree in Computer Science, Electrical Engineer or a related field.

The VIPER team is an organization within Comcast’s grander Technology Product and Experience organization (TPX) which supports the Product Management, Research & Development, Engineering and Operations for Comcast’s Elite Video Experiences in use by Comcast and Syndicated Partners. We support both legacy QAM Video Delivery and the Next Generation IP Video Platform infrastructure from Content Acquisition to the Player consuming experiences we control the end-to-end Video delivery platforms. These platforms deliver video for live linear, video on-demand and cloud DVR services consumed by more than 20 million customers both in-home and out of home on stb’s, connected tv, mobile and desktop products.


  • 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 EOE/Veterans/Disabled/LGBT employer.

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, or any other basis protected by applicable law.


Bachelor's Degree, 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

7-10 Years

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 [Register to View] on our careers site for more details.