R&D Senior Engineer- Senior DB and Backend Developer -India Development Center

Design, write, and optimize PostgreSQL queries including: Stored functions Triggers Views Complex joins and window functions High-performance queries Optimize PostgreSQL performance through: Index tuning Query plan analysis Partitioning (when needed) Build backend services using C# .NET and Python, integrating with PostgreSQL. Develop and maintain GraphQL APIs using Hasura connected to PostgreSQL. Apply strong transaction handling, error control, and concurrency management. Build both REST and GraphQL endpoints with proper validations and structured responses. Maintain database schemas, table designs, and relational structures. Troubleshoot issues related to: PostgreSQL performance Hasura metadata or GraphQL behavior Backend API logic Write unit tests, integration tests, and database tests. Document SQL routines, backend logic, and GraphQL schema structures. Hitachi Energy is a global technology leader in electrification, powering a sustainable energy future through innovative power grid technologies with digital at the core. Over three billion people depend on our technologies to power their daily lives. With over a century in pioneering mission-critical technologies like high-voltage, transformers, automation, and power electronics, we are addressing the most urgent energy challenge of our time – balancing soaring electricity demand, while decarbonizing the power system. Headquartered in Switzerland, we employ over 50,000 people in 60 countries and generate revenues of around $16 billion USD. We welcome you to apply today.