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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Software Engineer (Python or PHP) - Chicago - ONSITE 2X Week- FreeWheel - **Company:** Xfinity - **Location:** Chicago, IL, United States - **Experience:** Expert - **Salary:** $129,516.0 - $194,274.0 - **Contract:** Permanent contract - **Skills:** PHP (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Software Applications, Cloud Computing, Django Web Framework, Python (Programming Language), Software Deployment, Software Engineering, Subsystems, Web Applications, Backend, Kubernetes, Information Technology, Restful APIs - **Published:** September 4, 2026 - **Apply:** https://www.careerjet.com/job/us02db24b28a1e066f50acd859b5736a4b/eaa ## About the Role * 4+ Years of experience working with Python and Django. * Experience creating/developing RESTful API's using Django. * Experience with PHP * Experience with Kubernetes/EKS, AWS, owning production deployments at scale for critical backend services. * Bachelor's degree in Computer Science or relatable technical field or experience equivalent., Collaboration; Back-End Development; Design, 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 ## Description Job Summary FreeWheel's mission is to build great advertising software. We offer the most extensible and transparent advertising buying platform in the world, operating at a massive global scale. We don't just operate a Demand Side Platform (DSP) - we are the platform that powers hundreds of DSPs! As a result, we process trillions of transactions to satisfy millions of dollars' worth of advertising campaigns every month. Our employees enjoy a culture of transparency and one with many challenging problems to solve. We value moving fast, building high-quality reliable software, and supporting each other in the service of driving success for our customers' businesses. Buyer Cloud (formerly Beeswax) is responsible for building and maintaining the services necessary to set up, configure, manage, monitor, and execute DSP digital real-time bidding campaigns. The App team focuses on APIs, support tools, and ad serving systems, supporting FreeWheel Engineering by enabling efficient and scalable programmatic advertising operations. We are looking for a Sr Backend Python Developer to join our team. You will be responsible for planning and designing new software and web applications. Analyze tests and assists with the integration of new applications. Oversee the documentation of all development activity. Train non-technical personnel. Assist with tracking performance metrics. Provide guidance and support to other engineers. Integrate knowledge of business and functional priorities. Act as a key contributor in a complex and crucial environment., * Collaborates with project stakeholders to identify product and technical requirements. Conducts analysis to determine integration needs. * Designs new software and web applications, supports applications under development and customizes current applications. Develops software update processes for existing applications. Assists in the roll-out of software releases. * Trains junior Software Development Engineers on internally developed software applications. * Oversees the researching, writing and editing of documentation and technical requirements, including software designs, evaluation plans, test results, technical manuals and formal recommendations and reports. * Keeps current with technological developments within the industry. Monitors and evaluates competitive applications and products. Reviews literature, patents and current practices relevant to the solution of assigned projects. * Assists with technical leadership throughout the design process and assists in guidance with regards to practices, procedures and techniques. Serves as a guide mentor for Software Development Engineers. * Assists in tracking and evaluating performance metrics. Ensures team delivers software on time, to specification and within budget. * Works with Quality Assurance team to determine if applications fit specification and technical requirements. Tests and evaluates systems, subsystems and components. * Acts as a technical contact and liaison for outside vendors and/or customers. * Presents and defends architectural, design and technical choices to internal and external audiences. * 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) as necessary. * Other duties and responsibilities as assigned. ## Related Videos - [10M Data Records Lost, Underwater Computing, and Psychedelic Fish - Matthias Geniar](https://www.wearedevelopers.com/videos/1908-10m-data-records-lost-underwater-computing-and-psychedelic-fish-matthias-geniar) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [DevOps at Netflix](https://www.wearedevelopers.com/videos/270-devops-at-netflix) - [Develop on Windows, Deploy on Red Hat Enterprise Linux](https://www.wearedevelopers.com/videos/1600-develop-on-windows-deploy-on-red-hat-enterprise-linux) - [Scaling: from 0 to 20 million users](https://www.wearedevelopers.com/videos/676-scaling-from-0-to-20-million-users) ## Related Articles - [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers) - [20 Essential Tools For Backend Development](https://www.wearedevelopers.com/magazine/218-20-essential-tools-for-backend-development) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)