Principal Data Modeler Architect

Comcast Advertising; Reston (VA); On-site; USD 167,000 - 251,000; Full time

Job summary

Comcast Advertising is seeking a Principal Data Modeler Architect to lead data modeling efforts and shape enterprise data architecture. You will drive conceptual, logical, and physical models, collaborate with engineering, product, and governance teams, and guide modernization toward Snowflake-based solutions.

The role emphasizes leadership, scalable design, and adherence to data standards, with a strong focus on performance, security, and cost optimization across the data platform.

Qualifications

• Extensive experience in enterprise data modeling across conceptual, logical, and physical layers.
• Experience defining data governance, metadata, and data quality practices.
• Strong knowledge of Snowflake data modeling and migration from legacy systems.
• Proven ability to lead complex data initiatives and mentor teams.
• Collaborative skills to work with Data Engineering, Product, Architecture and Business teams.

Responsibilities

• Lead development of enterprise data models (conceptual, logical, physical) to support scalable data solutions.
• Define and enforce enterprise modeling standards, naming conventions, and data governance.
• Architect and optimize Snowflake data models for analytics, reporting, and AI/ML workloads.
• Partner with Data Engineering, Product, Architecture, and Business stakeholders to translate requirements into data models.
• Lead modernization initiatives including legacy data warehouse migrations to Snowflake.
• Conduct architecture and data model design reviews and mentor engineers.
• Evaluate new data modeling methods and cloud technologies to improve data maturity.

Skills

Enterprise Data Modeling

Data Modeling Tools

Snowflake Architecture

Data Architecture & Governance

Technical Leadership

Education

Bachelor's Degree

Tools

ERwin

ER/Studio

SAP PowerDesigner

Lucidchart

Job description

Principal Data Modeler Architect

Location Reston, Virginia

Req ID R442533

Job Type Full Time

Category Computer Engineering

Date posted 08/12/2026

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

This job entails leading the development of software and web applications in line with business and user needs. It involves integrating new systems, The Data Modeling & Data Engineering is responsible for defining and maintaining enterprise data models and architecture that enable scalable, reliable, and governed data solutions. The team partners closely with Data Engineering, Platform Engineering, Product, Governance, and Business teams to translate business requirements into effective data structures and solutions. The team also plays a key role in Snowflake modernization, legacy data warehouse migration, data standardization, and optimization across the enterprise.

Job Description

Must Have Skills:

• Enterprise Data Modeling – Strong experience with conceptual, logical, and physical data modeling, dimensional modeling, 3NF, and data warehouse design.
• Data Modeling Tools – Hands-on experience with tools such as ERwin, ER/Studio, SAP PowerDesigner, or equivalent for creating, maintaining, and governing enterprise data models.
• Snowflake Architecture – Strong knowledge of Snowflake data modeling, performance optimization, security, scalability, and migration from legacy platforms.
• Data Architecture & Governance – Ability to define data architecture standards, naming conventions, metadata, data lineage, data quality, and governance practices.
• Technical Leadership – Proven ability to lead complex data initiatives, influence architecture decisions, mentor engineers/modelers, and collaborate effectively with business and technology stakeholders

Job Details:

• Lead the design and implementation of enterprise conceptual, logical, and physical data models using industry-standard data modeling tools (e.g., ERwin, ER/Studio, SAP PowerDesigner, Lucidchart) to support scalable and governed data solutions.
• Define and enforce enterprise data modeling standards, naming conventions, metadata, and data governance practices to ensure consistency, quality, and maintainability across the organization.
• Architect and optimize Snowflake data models, including dimensional, normalized, and hybrid schemas, to support high-performance analytics, reporting, and AI/ML workloads.
• Partner with Data Engineering, Product, Architecture, and Business stakeholders to translate business requirements into scalable data models and enterprise data architecture.
• Lead data architecture for strategic initiatives, including legacy data warehouse modernization and migration to Snowflake, ensuring performance, scalability, security, and cost optimization.
• Conduct architecture and data model design reviews, mentor engineers and data modelers, and provide technical leadership to ensure adherence to enterprise best practices.
• Drive continuous improvement by evaluating emerging data modeling methodologies, cloud technologies, and automation capabilities to enhance the organization's data architecture and engineering maturity.

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:

Data Lake; Teradata SQL; Cloud Platform; Big Data Hadoop; Data Warehousing (DW); Collaboration; Technical Knowledge

Salary:

Virginia Pay Range: $167,383.91 - $251,075.87

Comcast intends to offer the selected candidate base pay within this range, dependent on job-related, non-discriminatory factors such as experience. The application window is 30 days from the date job is posted, unless the number of applicants requires it to close sooner or later.

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

10 Years +