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

Job description

The Opportunity Join Hitachi Energy’s India Development Centre (IDC), an R&D organization in Chennai and Bangalore. You will work with global R&D and research centers across 12 countries. You will help design and deliver digital solutions and product capabilities. You will build modern, secure, high-performing user interfaces. You will collaborate with cross-functional teams, contribute to engineering best practices, and mentor other developers. How You’ll Make An Impact • Design, write, and optimize complex PostgreSQL queries, including stored functions, triggers, views, joins, and window functions. • Improve database performance through index tuning, query plan analysis, and partitioning when needed. • Build backend services using C#/.NET and/or Python, integrated with PostgreSQL. • Develop and maintain GraphQL APIs using Hasura on top of PostgreSQL. • Build REST and GraphQL endpoints with validations and structured responses. • Apply strong transaction handling, error control, and concurrency management. Your background: • Education: (to be confirmed) • Experience: 8+ years working with relational databases, with deep expertise in PostgreSQL. • Strong experience with PL/pgSQL, stored routines, triggers, window functions, query tuning, and indexing strategies. • Strong knowledge of PostgreSQL locking, deadlocks, and concurrency/isolation levels. • 5+ years developing backend applications with C#/.NET and/or Python. • 2+ years working with GraphQL and Hasura on PostgreSQL. • Strong understanding of REST API design and backend architecture. • Experience using Git and standard development workflows. • Proficiency in both spoken & written English language is required. More about us • Work with global R&D teams across multiple countries and technology areas. • Opportunities to learn, mentor, and grow through challenging product development work. • Primary locations: Chennai (India Development Centre (IDC)). Publication date : 2026-04-30