Sr Software Engineer

Comcast (CC) of Willow Grove; Reston (VA); On-site; USD 142,000 - 213,000; Full time

Job summary

Comcast's FreeWheel unit in Reston, VA seeks a Software Engineer 4 to lead design, development and delivery of scalable services and data pipelines. You’ll mentor engineers, drive architectural decisions, and ensure maintainability in cloud environments.

You will collaborate with product, architecture, SRE, QA and end-users to align technical solutions with business goals, applying cloud-native patterns and modern tooling to deliver resilient systems at scale.

Qualifications

• Bachelor's or master's degree in computer science or related field.
• 3+ years of hands-on experience coding in Go, Rust, Node.js, Python or Scala.
• 2+ years of experience with microservices, Kubernetes, or EKS (AWS or OCI).
• 2+ years of experience with enterprise cloud services (e.g., S3, OCI Object Storage, EMR, Glue, EC2, ECS, OCI Compute, IAM, Lambda, CodeBuild, Athena, OCI Dataflow, Redis, ElasticSearch, RDS, Aurora, and Airflow).
• Proficiency in CI/CD tools such as Jenkins, Terraform, or similar automation tools.

Responsibilities

• Lead the technical design and delivery of scalable services and data pipelines ingesting first-, second-, and third-party data.
• Apply hands-on expertise in major cloud platforms (AWS, OCI, Azure, or GCP).
• Own ingestion solutions from source onboarding through production operation and downstream publication.
• Demonstrate proficiency in multiple languages and platforms and lead by example in modern build, containerization, and databases.

Skills

Go

Rust

Node.js

Python

Scala

Java

Education

Bachelor's or Master's in CS

Tools

Snowflake

Databricks

Aerospike

Kubernetes

CI/CD

Terraform

Job description

FreeWheel, a Comcast company, provides comprehensive ad platforms for publishers, advertisers, and media buyers. Powered by premium video content, robust data, and advanced technology, we’re making it easier for buyers and sellers to transact across all screens, data types, and sales channels. As a global company, we have offices in nine countries and can insert advertisements around the world.

Job Summary

As a Software Engineer 4, you lead the design, development, and delivery of scalable, high-impact software systems. You are recognized as a technical leader who drives architectural decisions, mentors engineers, and influences engineering practices across teams. Your depth of experience enables you to proactively identify risks, guide solution design, and ensure long‑term maintainability/performance of engineered products. You collaborate effectively with a broad spectrum of stakeholders—including product development, architecture, project management, compliance, SRE, QA, and end‑users to align technical solutions with business outcomes. Additionally, you apply strong cloud engineering principles and architectural patterns to deliver resilient, scalable services in modern cloud environments.

Job Description

Core Responsibilities

Lead the technical design and delivery of scalable services and data pipelines that ingest first-, second-, and third‑party audience segment data, taxonomy data, metadata, and related activation artifacts. Apply deep, hands‑on expertise in one or more major cloud platforms (AWS, OCI, Azure, or GCP), driving the adoption of best practices in automation, CI/CD pipelines, infrastructure as code, and cloud‑native development. Own ingestion solutions from source onboarding through production operation, including data validation, normalization, transformation, deduplication, segment replacement, add/remove processing, and downstream publication. Demonstrate proficiency in multiple languages and platforms (e.g., Python, Java, JavaScript, Go), and lead by example in the use of modern build, containerization, and database technologies. Design and optimize Snowflake data models, warehouses, queries, tasks, streams, secure data‑sharing patterns, and workload‑isolation strategies for high‑volume audience datasets. Assume ownership for delivering end‑to‑end solutions which address business problems; proactively aligning engineering decisions with Freewheel’s strategic objectives and industry best‑practices. Serve as a technical thought leader in “buy vs. build vs. broker” evaluations, contributing to architectural reviews and guiding platform‑level decisions across the broader engineering ecosystem. Engineer ingestion systems to meet defined service‑level objectives for data availability, processing latency, freshness, throughput, accuracy, and recovery. Champion the design and development of robust, scalable, and highly available software systems, balancing short‑term delivery with long‑term maintainability. Establish and enforce test automation standards, designing comprehensive unit and integration test suites to ensure reliability and reduce escaped defects. Drive adherence to and evolution of Freewheel’s engineering best practices, contributing to the refinement of design patterns, code quality standards, and review processes. Act as a mentor to junior and mid‑level engineers, providing technical guidance, knowledge sharing, and support for professional development. Bring working knowledge or expertise in technologies such as Snowflake, Databricks, and Aerospike; exploring their application in data‑intensive, mission‑critical systems.

Qualifications

Bachelor's or master's degree in computer science or a related field. 3+ years of hands‑on experience coding in Golang, Rust, Node.js, Python or Scala. 2+ years of experience with microservices, Kubernetes, or EKS (AWS or OCI). 2+ years of experience with enterprise cloud services (e.g., S3, OCI Object Storage, EMR, Glue, EC2, ECS, OCI Compute, IAM, Lambda, CodeBuild, Athena, OCI Dataflow, Redis, ElasticSearch, RDS, Aurora, and Airflow). Proficiency in CI/CD tools such as Jenkins, Terraform, or similar automation tools. Strong SQL skills with hands‑on experience using data platforms such as Aerospike, Snowflake, Databricks, Spark, Presto, and EMR. Experience with monitoring tools like Datadog, Prometheus, Grafana, and ELK stack. Demonstrated ability to troubleshoot and resolve complex technical issues. Excellent communication and collaboration skills with the ability to work effectively across teams and regions. Ability to thrive in a fast‑paced, dynamic environment with strong adaptability to changing priorities. Experience working with distributed data systems (Snowflake or Spark strongly preferred). Experience in the advertising industry, particularly in audience targeting, is a plus.

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 - .
• 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.

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.

Skills

Aerospike Database, Amazon Web Services (AWS), AWS EKS Anywhere, Redis Database, Snowflake (Platform), Structured Query Language (SQL)

Compensation

Virginia Pay Range: $141,850.78 - $212,776.16 This job can be performed in Illinois with a Pay Range of $129,515.93 - $212,776.16 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

7-10 Years

Equal Opportunity Workplace

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.

At Comcast , you have the power to connect the world. Your career options are endless as you grow in your career. Explore your future with access to a variety of teams, locations, and resources in an expanding network. You can also explore additional opportunities at our company, NBCUniversal.