Job Description

Salary: $130,996.11 - 242,585.38 per year Requirements:

• We seek a bachelors or masters degree in computer science, engineering, or a related field, or equivalent practical experience.
• We require 13+ years of professional software engineering experience, including 2+ years in a staff or lead engineering role.
• We require expert proficiency in a compiled, high-performance language such as C++, Go, Java, or Rust.
• We require a proven record designing, operating, and troubleshooting large-scale distributed backend systems in production.
• We require deep knowledge of concurrency, multithreading, memory management, networking protocols, and performance profiling on Linux.
• We seek experience developing containerized, cloud-native services using AWS, Kubernetes, ECS, or equivalent technologies, with robust metrics, tracing, and logging.
• We value experience with ultra-low-latency, real-time decisioning systems, such as AdTech, financial trading, real-time analytics, or high-frequency auction systems.
• We value experience with petabyte-scale datasets or systems processing millions of requests per second.
• We value familiarity with distributed datastores and storage platforms, such as Aerospike, Snowflake, and event-streaming architectures.
• We value experience modernizing legacy architectures and advancing cloud-native adoption.
• We expect regular, punctual attendance and flexibility to work nights, weekends, or variable schedules as needed.
• We expect employees to follow our operating principles, prioritize customers, learn and advocate for our technology, collaborate as a team, drive results and growth, support inclusion, and act responsibly toward colleagues, customers, investors, and communities.

• We expect you to lead the architecture, design, and delivery of scalable, low-latency backend services for our Buyer Cloud platform.
• We expect you to drive multi-team initiatives focused on platform reliability, system decomposition, scalability, and operational excellence.
• We expect you to identify and resolve performance bottlenecks in distributed workflows operating within strict latency limits.
• We expect you to partner with Product, Infrastructure, SRE, and Data Engineering to shape technical roadmaps and connect technical strategy with business goals.
• We expect you to establish engineering practices for design reviews, code quality, testing, observability, and incident root-cause analysis.
• We expect you to mentor senior and mid-level engineers through design coaching, code reviews, and architectural guidance.
• We expect you to exercise independent judgment and discretion in significant matters and take on other duties as assigned.

• AWS
• Backend
• Cloud
• Support
• Java
• Kubernetes
• Linux
• Rust
• Snowflake
• Backbone
• DevOps

More:

We are Comcast, and FreeWheel is our advertising technology company serving publishers, advertisers, and media buyers. Our global ad platform combines premium video content, data, and technology to support transactions across screens, data types, and sales channels, with offices in nine countries. We are hiring a Lead Software Engineer (ENG 5) as a principal-level individual contributor to guide the technical direction of our Buyer Cloud Ad Serving platform. This high-throughput system processes billions of ad auctions daily and returns responses in single-digit milliseconds. The role has no direct people-management responsibilities. The position may be performed in Colorado or California. The posted base-pay ranges are $160,106.35–$240,159.53 in Colorado and $130,996.11–$242,585.38 in California; pay depends on job-related factors. Eligible employees may receive a bonus and access to benefits supporting physical, financial, and emotional well-being. The application window is generally 30 days from posting, subject to change based on applicant volume. We are an equal opportunity employer.

last updated 43 week of 2026

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