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

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! 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 general inquiry form 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. Hitachi brings together the world’s greatest minds to help breathe life into new possibilities – and drive innovation for a better future. That’s why we look for individuals who share our pioneering spirit, have imaginative ideas and are fearless when it comes to tackling the world’s biggest challenges. 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. E-mail us for data privacy inquiries or technical support.