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

Overview In this role you will design, develop, and integrate backend solutions to support programmatic advertising operations at scale. You’ll work within the App team to build APIs and tools that enable DSP campaigns, contributing across the full SDLC. You’ll apply engineering best practices to deliver reliable software and improve performance, while collaborating with peers to uphold high engineering standards. This is a hands-on role in a fast-moving, customer-centric environment that powers a global advertising platform. You’ll be part of a mission to build great advertising software and support many DSPs on FreeWheel’s platform. Compensation / Benefitsbest-in-class BenefitsTotal RewardsBonus eligibilityBase pay within a structured rangeCommission potential for sales roles ResponsibilitiesWrite and maintain efficient code for software components following development best practicesContribute to design and development of new applications aligned with business goalsImplement testing frameworks (unit and integration) to ensure qualityDocument software development processes to enable knowledge sharingAnalyze integration needs and plan system architecture to meet specificationsReview practices and literature to inform solutions with sound engineering methodsCollaborate with QA to ensure requirements are metTroubleshoot issues to improve performance and user satisfactionExercise independent judgment in significant mattersMaintain regular attendance and flexibility to work nights/weekends as neededAlign with operating principles and customer-first mindset Key requirements2-5 years of relevant software development experienceProven experience with backend Python developmentFamiliarity with APIs, system design, and SDLCAbility to create and run unit and integration testsStrong problem-solving and debugging skillsExcellent collaboration and communication abilitiesBachelor's Degree (preferred) or equivalent experiencecollaborationwillingness to learnteamworkPython backend developmentAPI design and integrationSoftware testing (unit/integration)