Sr. Software Engineer 4- GoLang OR Java OR Python- Chicago, IL or Reston, VA- ONSITE (4 days a week)

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 a Engineer 4 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 the large-scaled distributed business system, 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

• Be a leader in a certain technical field, able to develop the technical roadmap of the field and effectively promotes continuous optimization.
• Collaborate with Product Management and Engineering leadership to gather
• requirements.
• Interface with global engineering teams/components when necessary.
• Extensively use a combination of cutting-edge technologies to increase the workflow flexibility and API responsiveness.
• Develop technical/case design documentation.
• Actively participate in technical and testing design review
• Implement software solutions according to engineering standards.
• Develop and implement Unit Tests, Regression Tests, and Automation tests based on the test case design.
• Implement integration tests that span across component teams.
• Actively participate in code review.
• Incorporate appropriate instrumentation, monitoring, and alert mechanisms into the software.
• Ensure delivered software solutions are always up and available
• Handling product alerts and providing support.
• Implement bug fixes when necessary.
• Upgrade components, libraries, infrastructure, etc. as necessary
• Consistent exercise of independent judgment and discretion in matters of significance.
• Regular, consistent and punctual attendance. Must be able to work nights and weekends, variable schedule(s) and overtime as necessary.
• Other duties and responsibilities as assigned.

Qualifications:

• Bachelor's or Master's degree in Computer Science or a related field of study.
• 5-8 years of professional experience in software development.
• Proficient knowledge of software development principles, data structures, and algorithms.
• Proficient knowledge of web development, including hands-on experience with HTTP, HTML, CSS, JavaScript, React.js, and SQL databases.
• Proficiency in Golang/Java programming with a solid understanding of popular design patterns, such as GoF, MVC, SOLID, MVP, Flux, and so on.
• Strong understanding of testing principles and practices, ensuring code quality with tools such as Junit, Selenium, Cypress, JMeter, Jest, and Mocha.
• Excellent problem-solving skills for both frontend and backend, utilizing tools like Browser Developer Tools, Go PProf, JStack, JMap, etc.
• Good communication and writing skills, coupled with the ability to thrive in a fast-paced, dynamic environment.
• Good knowledge of the Scrum agile collaboration framework and experience using Jira.
• Good knowledge of CI/CD tools, Git, Jenkins, and understanding of DevOps principles.
• Experience with the knowledge of RESTful APIs and microservices architecture.
• Experience with Docker, Kubernetes, or cloud computing platforms is a plus.
• Experience in developing large-scale web applications is preferred.

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 - think and act in ways that put our customers first, give them seamless digital options at every touchpoint, and make them promoters of our products and services.
• 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.

Why Join FreeWheel?
Cutting-Edge Technology: Work with modern data stacks, cloud platforms, and real-time processing frameworks.
Innovation-Driven Culture: Collaborate with top engineers, data scientists, and industry leaders shaping the future of ad tech.
Growth & Impact: Solve complex, large-scale data challenges with tens of billions of daily events in a high-impact role.
Flexible & Inclusive Work Environment: We value diverse perspectives, work-life balance, and professional development.
About FreeWheel:
FreeWheel, a Comcast company, is a global leader in advanced advertising technology, enabling seamless transactions across screens, data types, and sales channels. Operating in nine countries, FreeWheel powers global ad insertion and recently launched Universal Ads, a cross-publisher TV advertising platform in collaboration with major media players like NBCUniversal, Warner Bros. Discovery, and Roku. Committed to innovation, inclusivity, and professional growth, FreeWheel fosters a dynamic work environment where diverse perspectives thrive while shaping the future of premium video advertising.
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.
Comcast is proud to be 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:
Technical Requirements; Back-End Development; Software Development
Salary:
Primary Location Pay Range: $126,788.71 - $190,183.07
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