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

Hitachi Automotive Systems Americas, Inc.; Chennai; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Hitachi Automotive Systems Americas, Inc. is seeking an R&D Senior Engineer specializing in DB and backend development located in Chennai, Tamil Nadu, India. This role focuses on optimizing PostgreSQL queries, building backend services with C# .NET and Python, and developing GraphQL APIs. The ideal candidate should have strong skills in PostgreSQL performance tuning and experience in both REST and GraphQL endpoint development. This full-time position offers an engaging work environment where innovative solutions are encouraged.

Qualifications

• Experience optimizing PostgreSQL queries and performance.
• Strong knowledge of building backend services with C# .NET and Python.
• Skilled in creating and maintaining GraphQL APIs.

Responsibilities

• Design and optimize PostgreSQL queries and performance.
• Build backend services and develop GraphQL APIs.
• Troubleshoot PostgreSQL performance and backend logic issues.

Skills

PostgreSQL

C# .NET

Python

GraphQL

Database performance optimization

Job description

.R&D Senior Engineer- Senior DB and Backend Developer -India Development Center page is loaded## R&D Senior Engineer- Senior DB and Backend Developer -India Development Centerremote type: Onsitelocations: Chennai, Tamil Nadu, Indiatime type: Full timeposted on: Posted Todayjob requisition id: R0127537**Location:**Chennai, Tamil Nadu, India**Job ID:**R0127537**Date Posted:**2026-04-30**Company Name:**HITACHI ENERGY TECHNOLOGY SERVICES PRIVATE LIMITED**Profession (Job Category):**Engineering & Science**Job Schedule:**Full time**Remote:**No**Job Description:*** 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.## Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process.## This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.Our people love technology – and they love making a difference. They have a passion for finding new solutions and working with brilliant colleagues. Every day they dedicate themselves to a huge range of exciting projects, contributing to the Hitachi vision around the globe.From engineering new sustainability solutions that conserve water and energy to creating the infrastructure for the smart cities of tomorrow, there’s no challenge too great for our pioneers. And there’s no shortage of opportunities for you to make a difference.Come and experience the dynamic, collaborative and creative environments where your ideas are welcome and new discoveries are waiting. To help you grow to your full potential, we strive to support our employees in their career aspirations and promote the freedom to explore new horizons.