GoLang Software Engineer, Identity Service- Freewheel

Comcast; Chicago (IL); On-site; USD 109,759 - 164,638; Full time

Benefits offered by this job

Best-in-class Benefits

Bonus potential for most non-sales positions

Commission eligible for sales positions

Job summary

Comcast is seeking a Software Engineer for their Identity Service Team in Chicago. In this role, you will design, develop, and deliver scalable backend systems using Golang within an AWS environment.

The ideal candidate will have 3+ years of experience in software engineering, strong knowledge of AWS, and a passion for building reliable platforms. You will work closely with various teams to implement identity services and ensure operational excellence.

Qualifications

• 3+ years of software engineering experience in backend services.
• Strong programming experience, preferably with Golang.
• Experience building low-latency microservices in cloud-native environments.

Responsibilities

• Design and implement identity services for audience building and identity resolution.
• Develop and maintain APIs and microservices for audience workflows.
• Ensure reliability of identity services through logging and metrics.

Skills

Golang

AWS

Java

Python

SQL

Collaborative skills

Debugging

Education

Bachelor's degree in Computer Science or related field

Tools

EKS/Kubernetes

Jenkins

Datadog

Prometheus

Grafana

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 on the Identity Service Team, you will contribute to the design, development, and delivery of scalable, cloud‑native backend systems that power identity resolution, audience targeting, and high‑throughput advertising workloads. You will build and maintain high‑performance, low‑latency microservices primarily using Golang within an AWS/EKS environment while helping drive reliability, scalability, and operational excellence across distributed systems. In this role, you will work closely with cross‑functional teams including Product, Architecture, SRE, QA, Compliance, and Data Engineering to deliver resilient and observable platform capabilities. The ideal candidate has strong experience developing cloud‑native microservices, managing CI/CD pipelines, working within modern data ecosystem technologies, and is a collaborative engineer who thrives in fast‑paced agile environments and passionate about building reliable, scalable backend platforms.

Core Responsibilities

• Design and implement identity services that support audience building, identity resolution, measurement, and targeting across multiple devices / channels.
• Develop and maintain APIs, microservices, and components for audience/identity workflows (e.g., ID mapping, audience lookup, segment evaluation).
• Own end‑to‑end features from design through deployment: requirements clarification, technical design, implementation, code review, automated testing, observability, and rollout.
• Ensure reliability and operational excellence of identity services by implementing robust logging, metrics, alerts, and dashboards.
• Optimize identity targeting performance and latency, including query patterns, matching strategies (linkages), and data‑access paths (e.g., Aerospike, Kafka, Snowflake, S3) to support high‑throughput ad‑serving and bidding workloads.
• Safeguard data quality across identity pipelines by adding validations, thresholds, and automated checks for ingest, transformation, and targeting logic.
• Collaborate closely with product, architecture, SRE, QA, and compliance to refine requirements, align on designs, ensure privacy, and validate the effectiveness of engineering solutions.
• Contribute to identity and audience‑domain architecture by reviewing designs, suggesting improvements, and helping evolve patterns for identity graph, IDS, audience manager, and F.I.T.S.
• Participate in escalation and production support workflows (P1/P2), performing root cause analysis for identity‑targeting issues, proposing fixes, and implementing durable preventative measures.
• Drive continuous improvement and tech‑debt reduction in the identity targeting codebase, simplifying complex logic, improving test coverage, and aligning services with modern cloud/platform standards.
• Mentor and collaborate with peers (junior engineers, data engineers, QA) by providing constructive code reviews, sharing domain knowledge on identity targeting, and contributing to onboarding and documentation.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent practical experience.
• 3+ years of software engineering experience building scalable backend services and distributed systems.
• Strong programming experience with Golang preferred; additional experience with Java or Python microservices is valuable.
• Experience building high‑performance, low‑latency microservices in cloud‑native environments.
• Strong experience with AWS infrastructure and container orchestration technologies, particularly EKS/Kubernetes.
• Experience implementing and maintaining CI/CD pipelines, preferably with Jenkins.
• Strong SQL skills with experience optimizing queries and working with large‑scale datasets.
• Experience with monitoring, logging, and observability platforms such as Datadog, Prometheus, Grafana, or ELK stack.
• Exposure to modern data platforms including Snowflake, Databricks, Spark, Presto, or EMR is a strong plus.
• Excellent troubleshooting, debugging, and cross‑functional collaboration skills.
• Experience in AdTech, identity resolution, audience targeting, or real‑time bidding systems is preferred but not required.

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.

EEO Statement

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

Collaboration; Software Releases; Software Development; Technical Issues; Go Programming Language

Salary

Primary Location Pay Range: $109,759.26 - $164,638.89. 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 the job is posted, unless the number of applicants requires it to close sooner or later.

Benefits

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