Software Engineer 3- GoLang- Chicago, IL or Reston, VA- ONSITE (4 days a week)

Company: Comcast
Location: Chicago
Posted on: May 20, 2025

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
FreeWheel's mission is to build great AdTech software. We are looking for an Engineer 3 to join our growing engineering team in FreeWheel. If you're excited to work with a tightly knit team of engineers solving hard problems the right way using cutting-edge technologies from backend to frontend for large-scale distributed business systems, and monitoring tools in the cloud, this opportunity is for you. Our Business engineering team works with huge provisioned datasets from several sources to help the world's largest programmers, measurement partners, and networks monetize their supplies. We build and maintain responsive and user-friendly interfaces using modern web technologies crossing various devices and browsers on the state-of-the-art Cloud-Native platform built on AWS. Our people are the most important part of our business, and none more so than our engineers. We are fundamentally looking for bright, enthusiastic problem solvers-people who love a challenge, constantly evaluate and question, and above all, love to ship a product that solves real problems.
Job Description
Core Responsibilities

• Collaborate with Product Management and Engineering leadership to gather requirements.
  
• Interface with global engineering teams/components when necessary.
  
• Use a combination of cutting-edge technologies to increase workflow flexibility and API responsiveness.
  
• Provide innovative end-to-end solutions for new business requirements.
  
• Write technical design documentation.
  
• Develop test case design documentation.
  
• Participate in technical and testing design reviews.
  
• Implement software solutions according to FreeWheel engineering standards.
  
• Develop and implement Unit Tests, Regression Tests, and Automation tests based on test case design.
  
• Implement integration tests spanning across component teams.
  
• Participate actively in code reviews.
  
• Incorporate instrumentation, monitoring, and alert mechanisms into the software.
  
• Ensure software solutions are always up and available.
  
• Handle product alerts and provide support.
  
• Implement bug fixes as necessary.
  
• Upgrade components, libraries, infrastructure, etc., as needed.
  
• Exercise independent judgment and discretion in matters of significance.
  
• Maintain regular, punctual attendance. Ability to work nights, weekends, variable schedules, and overtime as necessary.
  
• Perform other duties and responsibilities as assigned.
  
  Qualifications
  
  
• Bachelor's degree in Computer Science or a related field.
  
• 3-5 years of professional experience in software development.
  
• Strong understanding of software development principles, data structures, and algorithms.
  
• Proficient in web development, including HTTP, HTML, CSS, JavaScript, React.js, and SQL databases.
  
• Proficiency in Golang/Java with knowledge of design patterns such as GoF, MVC, SOLID, MVP, Flux.
  
• Strong testing principles and practices, with experience using Junit, Selenium, Cypress, JMeter, Jest, Mocha.
  
• Excellent problem-solving skills for frontend and backend, utilizing tools like Browser Developer Tools, Go PProf, JStack, JMap.
  
• Good communication and writing skills, with ability to thrive in a fast-paced environment.
  
• Familiarity with Scrum Agile, Jira, CI/CD tools, Git, Jenkins, and DevOps principles.
  
• Experience with RESTful APIs, microservices, large-scale web applications, and cloud platforms (plus).
  
  Additional Expectations
  

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• Understand and embody our Operating Principles.
  
• Own the customer experience and prioritize customer needs.
  
• Be enthusiastic about learning and advocating our technology and products.
  
• Collaborate effectively as a team.
  
• Participate in the Net Promoter System activities.
  
• Drive results and growth.
  
• Promote inclusion and diversity.
  
• Act ethically and responsibly for stakeholders and communities.
  
  Why Join FreeWheel?
  
  • 
    
  • Work with modern data stacks, cloud platforms, and real-time frameworks.
    
  • Collaborate with top industry professionals shaping ad tech's future.
    
  • Solve large-scale data challenges with high impact.
    
  • Enjoy a flexible, inclusive work environment supporting your growth.
    
    About FreeWheel
    FreeWheel, a Comcast company, is a leader in ad tech, enabling seamless transactions across screens and data types, operating in nine countries. We recently launched Universal Ads, a cross-publisher TV ad platform in collaboration with major media players. We are committed to innovation, inclusivity, and professional growth.
    Disclaimer
    This description provides a general overview of the role and is not exhaustive of all duties, responsibilities, and qualifications.
    We are an equal opportunity employer and consider all qualified applicants without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or other protected categories.
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Keywords: Comcast, Downers Grove , Software Engineer 3- GoLang- Chicago, IL or Reston, VA- ONSITE (4 days a week), IT / Software / Systems , Chicago, Illinois