We are seeking a Backend Engineer with 2+ years of experience in building scalable and reliable server-side applications. The candidate should be comfortable working with Java, Spring Boot, PostgreSQL, Docker, Kafka, MQTT, and REST APIs to develop and maintain backend systems for data-intensive applications. Key responsibilities include designing and optimizing APIs, ensuring secure data exchange, integrating with databases and messaging systems, and collaborating with cross-functional teams to deliver high-quality solutions. A strong problem-solving mindset and the ability to work on real-time data processing and IoT-style workloads are highly valued.