Hitachi, Ltd.

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

Hitachi, Ltd.
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6 months ago
Chennai, IndiaSenior

Responsibilities

  • Design, write, and optimize PostgreSQL queries, stored functions, triggers, views, joins, and window functions.
  • Optimize PostgreSQL performance through index tuning, query plan analysis, and partitioning when needed.
  • Build backend services using C# .NET and Python, integrating them with PostgreSQL.
  • Develop and maintain GraphQL APIs using Hasura and PostgreSQL.
  • Build endpoints with validations and structured responses while applying transaction handling, error control, and concurrency management.
  • Maintain database schemas, table designs, and relational structures.
  • Troubleshoot PostgreSQL performance, Hasura metadata, GraphQL behavior, and backend API logic issues.
  • Write unit, integration, and database tests.
  • Document SQL routines, backend logic, and GraphQL schema structures.

Benefits

  • Full-time, non-remote position located in Chennai, Tamil Nadu, India.

Tech Stack

C#GraphQL.NETPostgreSQLPythonSQL

Categories

Hitachi, Ltd.

About Hitachi, Ltd.

10,000+ employees

Hitachi, Ltd. builds industrial, energy, rail, and digital systems for governments and enterprises, combining operational technology with IT, cloud, and data infrastructure services. Its portfolio spans power grids, factory automation, data centers, rail systems, and consulting delivered through units such as Hitachi Vantara, Hitachi Rail, and Hitachi Energy. Founded in 1910 and headquartered in Tokyo, it is listed on the Tokyo Stock Exchange and operates globally across critical infrastructure markets.

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