Senior Software Engineer IV (Python)

Description: Seeking a Senior Software Engineer IV with strong platform and cloud expertise to design and implement scalable integrations. Work on building audiences and segments capabilities for a cloud-based ad marketplace, focusing on AI-powered segment discovery and data marketplace features. Requirements: 5+ years of experience in building SaaS applications using Python. Proficient in database system design (RDBMs or NoSQL), cloud platforms (AWS or GCP), REST/GraphQL, and containerization (k8s, Docker). Communicative in Polish and English. Benefits: Employment contract or B2B options with competitive salary. Flexible working hours and remote work options. Annual performance bonus, private health care, and additional perks like training access and holiday allowance.