The opportunity:

Join Hitachi Energys 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 up-to-date, secure, high-performing user interfaces. You will collaborate with cross-functional teams, contribute to engineering best practices, and mentor other developers.

How youll 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)).

📌 R&D Senior Engineer- Senior DB and Backend Developer (Tamil Nadu)
🏢 Hitachi Energy
📍 Tamil Nadu