A leading cybersecurity company is looking for a backend developer in Warsaw. The successful candidate will enhance product features and collaborate with cross-functional teams, utilizing Python, PHP, or Ruby. Candidates must have over 4 years of backend experience, a strong understanding of system design, and familiarity with tools like Kubernetes and Kafka. A collaborative mindset is essential, along with the ability to build intuitive APIs. The role requires on-site presence three times a week.