Location:

Chennai, Tamil Nadu, India

Job ID:

R0129772

Date Posted:

2026-05-18

Company Name:

HITACHI ENERGY TECHNOLOGY SERVICES PRIVATE LIMITED

Profession (Job Category):

Engineering & Science

Job Schedule:

Full time

Remote:

No

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. Write unit, integration, and database tests, and document SQL routines, backend logic, and API schemas.
Responsible for ensuring compliance with applicable external and internal regulations, procedures, and guidelines.
Hitachi Energy's core values safety and integrity, which means taking responsibility for your own actions while caring for your colleagues and the business.

Your Background:

Required experience: 4 - 6 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.
Required 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.
Opportunities to learn, mentor, and grow through challenging product development work. Primary location: Chennai (India Development Centre (IDC)).

More about us:
Excited about a new opportunity If this sounds like you, we'd like to see your application! Our selection process is
ongoing, so don't wait-apply today!

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R&D Experienced Professional- DB & Backend Developer - IDC