5+ years of professional backend development experience with Go (Golang), Python, or Java Experience building large-scale, high-load distributed systems with strong performance optimization skills Knowledge of cloud platforms such as AWS, GCP, or similar Familiarity with containerized environments (Docker, Kubernetes) Familiarity with databases and messaging systems (PostgreSQL, Redis, Kafka, MongoDB) Strong problem-solving abilities and ability to work independently Excellent communication skills Self-driven, proactive, and capable of managing multiple priorities