Company DescriptionFlycomm develops advanced Cellular Intelligence systems operating at scale and integrated into both security and civilian environments. We are looking for a Senior Backend Engineer with strong development skills, ownership end‑to‑end and system‑level thinking. The role combines significant backend development with integration and adaptation of advanced system components.Role OverviewThis position blends:* End‑to‑end Backend development in Python.* Extending existing system capabilities and developing new components.* Integrating and adapting modules developed by leading defense‑sector technology teams.* Working in a dynamic environment with full responsibility for services, including basic DevOps tasks.* Collaboration with internal development teams and security‑sector partners.Responsibilities* Develop Backend services and microservices using Python / FastAPI.* Implement integrations across complex system components.* Work with Kafka / SQS, S3, ClickHouse, MongoDB and SQL databases.* Analyze existing architectures and apply required adaptations.* Own development tasks end‑to‑end through deployment in a secure environment.Requirements* 4+ years of experience in Backend development.* High proficiency in Python.* Experience with message queues (Kafka / SQS).* Experience with relational and NoSQL databases.* Experience working with complex, dynamic environments.Advantages* Experience with ClickHouse.* Knowledge of cellular technologies (4G/5G, RF).* Experience working with security‑sector organizations.* Familiarity with DevOps / CI/CD.* Active Level 2 security clearance (Advantage)