Apr 20, 2024

Principal Software Development Engineer - DOCSIS

  • Professional Diversity Network
  • Philadelphia, PA, USA
Full-Time Engineering

Job Description


Make your mark at Comcast -- a 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

Responsible for end-to-end ownership of projects across the entire stack. Build products with web frameworks, application programming interfaces, databases, and multiple Backend languages. Solve challenges that impact both the front-end and backend architecture, while delivering global customer experiences. Acts as a technical expert in own area within the organization. May work independently or as part of a team on more complex projects. Provides mentoring and guidance to more junior team members. May be responsible for leading a team, but does not directly manage people.

Job Description

The Technology, Product, Experience (TPX) organization works at the intersection of media and technology and our innovative teams are continually developing and delivering products and next-generation technologies that transform the customer experience.

The Comcast Network and CONNECTivity (CONNECT) organization is a highly agile, fast-paced, dedicated group at the forefront of change focused on innovating, building, and operating the best in class, most reliable access network for our customers.

About the Team:

This team is responsible for platform, infrastructure and networking of a complex ecosystem that delivers Comcast's New Generation Access Network, involving server racks, networking gear and all the software, configuration and operating systems that make them up. It's a fun-lovingstart-up mode team - partnering with new solution initiatives, bringing out new technology adaptations and always on a hustle.

Team Values:

  • Mutual respect and diversity of thought.
  • Curiosity, experimentation, and the pursuit of continuous improvement.
  • Team unity and minimal ego.
  • Leadership and the willingness to technically guide scrum teams.
  • Strong commitment to delivering projects on time.
  • Dedication to training and mentoring young engineers.
  • Simplicity in our architecture and coding, with a focus on details.
  • Finding joy in our work and maintaining a balance with personal life.
  • Ownership at both personal and team levels, building on mutual trust.
  • Thoughtful refactoring and challenging the status quo.

About the Role:

As a Principal Engineer specializing in DOCSIS and adept in modern software development methodologies, you will lead the development of cloud-native microservice architecture applications and virtual CMTS core features. Your main duties will encompass defining architecture and requirements, alongside designing, implementing, and supervising the development of vCMTS application features. This role involves not just software development but also managing operational technical challenges within our Core Virtualization project, requiring a developer who is team-oriented, results-driven, and skilled in development, operational analysis, and the Agile & DevOps life cycles.

What You'll Do:

  • Developing well-tested, ready-for-production code.
  • Contributing to design and architecture discussions.
  • Creating robust deployment and monitoring systems.
  • Providing support for production environments.
  • Conducting code reviews and engaging in agile software development activities.
  • Collaborating positively with team members.
  • Adaptable, proactive, and willing to take ownership.
  • Keen attention to detail and high level of commitment.
  • An ability to adapt quickly in a fast-paced agile setting.
  • Comfortable working in a fast-paced agile environment. Requirements change quickly and our team needs to constantly adapt to moving targets.
  • Excellent communication skills and the ability to articulate technical challenges and solutions to a diverse audience.

Preferred Qualifications:

  • Bachelor's degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.
  • 8+ years of experience in cable/telecommunications industry

Skills & Experience We're Looking For:

  • Proficiency in programming languages such as C++, Java, Go, Python.
  • Understanding of key networking protocols and technologies - DOCSIS, HTTP/S, TCP, UDP, multicast, BGP, ISIS
  • Familiarity with distributed systems, asynchronous messaging, and network protocols.
  • Familiarity with distributed systems, asynchronous messaging, and network protocols.
  • Familiarity with advanced software technologies and environments.
  • Experience in any of the following: Docker/Containerd, Kubernetes.
  • Strong problem-solving skills and the ability to communicate complex ideas effectively with a strong bias for architecting at scale.
  • Experience in code optimization and high-performance computing.

Additional "Nice to Have" Skills:

  • Experience in networking, particularly with Arista/Cisco/Juniper hardware.
  • Good current knowledge of Unix/Linux environments
  • Familiarity with data serialization formats like XML, JSON and protocol buffers
  • Experience with scripting tools such as Python is a plus
  • Knowledge of operational support tool technologies: ELK, Splunk, Prometheus, InfluxDB, Grafana
  • High level of accountability - takes ownership of problems and sees them through to resolution
  • Familiarity with CI/CD tools (Jenkins, GitLab CI, etc.) and version control systems (Git).

About Our Perks & Benefits:

We are determined to create an environment where our employees feel valued, understand our business goals, and are motivated.

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 of our full-time employees in serviceable areas free digital TV and internet.
  • Discount tickets for Universal Resorts, including theme park tickets and onsite hotel rooms.

Learn more at jobs.comcast.com/life-at-comcast/benefits

Reasonable Accommodation

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, perform essential job functions, and receive other benefits and privileges of employment. Please contact us to request an accommodation.


  • 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, genetic information, or any other basis protected by applicable law.


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

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 compensation and benefits summary on our careers site for more details.


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