Senior Python Developer (f/m/x)

We are looking for a skilled Senior Python Developer to join our team focused on developing cloud-native software solutions for large-scale telecommunications networks, including 5G technologies. You will participate in the entire software development lifecycle, collaborating with a diverse team of software developers, system engineers, data scientists, and telecommunications experts. This remote role offers the opportunity to work on innovative applications that analyze network data and support use cases such as RAN optimization and network self-healing. Your tasks Participating in the complete software development lifecycle, including requirements analysis, solution design, implementation, testing, and deploymentDeveloping cloud-native microservices and REST APIsProcessing and analyzing network configuration, performance, and telemetry dataWriting unit, integration, and system tests to ensure software qualityTroubleshooting application behavior in Linux and Kubernetes environmentsEvaluating new technologies and contributing to research and proof-of-concept activitiesCollaborating with cross-functional teams to deliver impactful software solutions Requirements Minimum 7 years of experience in software development with strong programming skills in modern Python 3Experience in designing, implementing, and maintaining production-quality softwarePractical knowledge of automated testing using pytest or similar frameworksExperience with Linux-based software development and troubleshootingUnderstanding of containers, Docker, and Kubernetes fundamentalsExperience in developing microservices or web APIs and familiarity with relational databasesGood problem-solving and debugging skills, along with the ability to use AI coding tools effectivelyAdvanced level of Polish and English Nice to have Experience in developing software for telecommunications systems, particularly 4G or 5G RANKnowledge of Kubernetes networking, ingress, storage, and security conceptsFamiliarity with public or private cloud platforms and experience with data analysis or machine learningExperience with message brokers or event-driven architecture Job no. JOB-7UBPM Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.