Senior Backend Engineer (Python or PHP) - Onsite

Salary: $129,515.93 - 194,273.89 per year Requirements: 4+ years of experience working with Python and Django. Experience developing RESTful APIs using Django. Experience with PHP. Experience with Kubernetes/EKS and AWS, including ownership of production deployments at scale for critical backend services. A bachelors degree in Computer Science or a related technical field, or equivalent experience. Relevant coursework or extensive professional experience may also be considered. 7–10 years of relevant work experience. AdTech or advertising experience is a plus. Responsibilities: Collaborate with project stakeholders to identify product and technical requirements, and analyze integration needs. Design and customize software and web applications, support applications in development, create update processes, and assist with software releases. Train junior software engineers on internally developed applications and mentor other engineers. Oversee research, preparation, and editing of technical documentation, including software designs, evaluation plans, test results, manuals, recommendations, and reports. Keep up with industry developments and assess competing applications, products, literature, patents, and current practices relevant to assigned projects. Provide technical leadership and guidance on design practices, procedures, and techniques. Track and evaluate performance metrics, and help ensure software is delivered on time, to specification, and within budget. Work with Quality Assurance to verify applications against specifications and technical requirements; test and evaluate systems, subsystems, and components. Serve as a technical contact for external vendors and customers. Present and explain architectural, design, and technical decisions to internal and external audiences. Exercise independent judgment on significant matters and maintain regular, punctual attendance, with flexibility to work nights, weekends, and variable schedules as needed. Carry out other duties as assigned. Follow our operating principles, prioritize customer experience, learn and advocate for our technology and services, collaborate as a team, contribute to customer and employee feedback practices, drive results and growth, support inclusion, and act responsibly toward colleagues, customers, investors, and communities. Technologies: AWS Backend Cloud Django Support Kubernetes PHP Python Web API More: We are hiring a Senior Backend Python Developer for FreeWheel, a Comcast company, through hackajob. FreeWheel provides advertising platforms for publishers, advertisers, and media buyers, operating globally with offices in nine countries. Our Buyer Cloud team builds and maintains services for configuring, managing, monitoring, and executing digital real-time bidding campaigns; the App team develops APIs, support tools, and ad-serving systems for scalable programmatic advertising. We work at global scale, value transparency, reliable software, speed, and collaboration, and tackle challenging problems in support of our customers. The Illinois base-pay range is $129,515.93–$194,273.89, with the selected offer depending on job-related factors. Total rewards may include a bonus for eligible non-sales roles and benefits for eligible employees, with options and resources to support physical, financial, and emotional well-being. The application window is generally 30 days from posting, subject to change. We are an equal opportunity workplace and consider qualified applicants without regard to protected characteristics. last updated 42 week of 2026