Senior Backend Software Engineer (Python or PHP) - Chicago - ONSITE 2X Week- FreeWheel

Overview You will design and build scalable backend software to support programmatic advertising operations. You join a cross-functional App team that focuses on APIs, tooling, and ad serving, enabling efficient DSP workflows at scale. You’ll guide technical decisions, mentor engineers, and help drive reliable delivery in a fast-paced, transparent culture. This role offers the chance to work on critical backend systems that power a world-scale ad platform. You’ll contribute impactfully to our mission of building great advertising software. Compensation / Benefitsbest-in-class benefitsbase paybonus eligibilitycommission eligibility for sales rolescareer growth opportunitiescompetitive total rewards ResponsibilitiesCollaborate with stakeholders to define product and technical requirements and assess integration needsDesign and support new software and web applications, and tailor existing onesDevelop software update processes and assist in software releasesMentor junior engineers and contribute to internal documentationTrack performance metrics and ensure timely, on-spec, on-budget deliveryCoordinate with QA to verify specifications and feasibilityPresent architectural and technical decisions to internal and external audiencesProvide technical leadership and guidance throughout the design process Key requirements4+ years of Python and Django experienceExperience building RESTful APIs with DjangoPHP experienceKubernetes/EKS, AWS, with production deployments at scaleBachelor's degree in Computer Science or related field (or equivalent experience)collaborationmentoringclear communicationPythonDjangoRESTful APIs