Back End Developer

**Job Title:** Senior Backend Engineer (Java/Spring Boot, PostgreSQL Migration) **Work Mode:** 100% Remote **Employment Type:** Independent Contractor (hourly pay, no benefits, and you’re responsible for your own taxes) **Contract Duration:** 6 Months (with possibility of extension) **Work Hours:** 40 Hours Per Week **Time Zone:** PST **Interview Process:** One round of interview **Laptop:** Not provided; candidates must use their own device **About the Role:** This position requires exceptional database design and migration expertise to lead the transition of applications from HDI to PostgreSQL. It also demands strong backend engineering skills with Spring Boot and microservices, though the primary focus will be on schema design, query optimization, and large\-scale database migration. **Tech Stack:** **Backend Development:** Java, Spring Boot, Microservices **Database:** PostgreSQL (Schema Design, Tuning, Migration), HBase / NoSQL **Messaging \& Integration:** Kafka\-preferred, RabbitMQ **Cloud Platforms:** AWS/Azure/GCP **Requirements:** * 8\+ years of professional experience * Deep expertise in PostgreSQL including schema design, performance tuning, database design, and large\-scale migration * Strong Java ( **Spring Boot, microservices** ) development experience * Cloud deployment experience (AWS/Azure/GCP) * Familiarity with messaging/event\-driven systems ( **Kafka\- preferred** , RabbitMQ, etc.) * Exposure to HBase or other NoSQL databases is a plus * Prior HDI and Postgres experience