Software Engineer (Eng3), Experimentation Platform
Philadelphia, Pennsylvania
Overview
Make your mark at Comcast -- a Fortune 30 global media and technology company. Become part of our award-winning, international engineering 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. You’ll do the best work of your career right here.
Success Profile
What makes a successful Software Engineer (Eng3), Experimentation Platform at Comcast? Check out these top traits and explore role-specific skills in the job description below.
- Results-driven
- Adaptable
- Inventive
- Entrepreneurial
- Team Player
- Problem-Solver
Responsibilities
Software Engineer (Eng3), Experimentation Platform
Job Summary
We are seeking a highly skilled and collaborative Engineer 3 to join our team focused on building and scaling our experimentation platform. In this role, you will design and maintain core services that enable experimentation at scale, integrating with feature flagging, segmentation, and data systems. You’ll work closely with product, data science, and engineering teams to deliver reliable, high-performance solutions that drive innovation and decision-making. As a mid-level engineer, you will contribute to the technical direction of the platform, participate in architecture discussions, and help ensure operational excellence through incident response and continuous improvement.Job Description
About Us
At DevX, we’re on a mission to transform the developer experience. Our team builds the foundational tools and services that empower developers to create, deploy, and manage applications efficiently and with confidence. We focus on scalability, reliability, and innovation—so developers can focus on building what matters.
About the Team
The SE team owns and evolves the Experimentation Platform, among other central platforms, enabling teams across the company to make data-informed decisions with speed and precision. Our platform integrates with feature flagging, cohort segmentation, and analytics systems to support experimentation at scale, ensuring that developers, product managers, and data scientists can test, learn, and iterate rapidly.
What You’ll Do
As a Software Engineer on the Experimentation Platform team, you will:
- Design, build, and maintain core services that power experimentation at scale.
- Develop integrations with feature flagging, segmentation, and data systems.
- Ensure reliability, performance, and scalability of the experimentation platform.
- Collaborate with product, data science, and engineering teams to understand their needs and deliver impactful solutions.
- Contribute to technical direction, best practices, and documentation for the platform.
- Participate in code reviews, architecture discussions, and incident response to ensure platform excellence.
What We’re Looking For
- Proficient in software engineering with expertise in the following languages: Go, TS Fullstack, and Python..
- Experience developing distributed systems, backend services, or developer platforms using cloud technologies.
- Familiarity with experimentation, feature flagging, or A/B testing systems (a plus).
- Understanding of APIs, event-driven systems, and data pipelines.
- Commitment to writing clean, maintainable, and testable code.
- Strong collaboration and communication skills.
Why Join Us
- Work on a high-impact platform used by developers and product teams across the organization.
- Be part of a team that values innovation, learning, and empowering developers.
- Tackle exciting technical challenges at scale, from distributed systems to data-driven decision-making.
- Join a culture that invests in growth, collaboration, and developer experience.
Disclaimer:
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 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.
Skills:
Infrastructure As Code (IaC); TypeScript; Experimentation; DevOps; AWS Devops; Python (Programming Language); Containerization
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 to eligible employees. 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.
Education
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
5-7 Years
Hear from our people
Culture
At Comcast you can have work/life balance in an inclusive environment where you can be your authentic self.
Comcast provides many opportunities to build skills and grow in your career and a top-notch benefits, time off and perks package.
We are committed to delivering reliable, effortless experiences to our customers no matter how they choose to interact with us.
You will build personal relationships on a growing team that while making Xfinity a best-in-class, most-loved brand.

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