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Job description
The opportunity:
Hitachi Energy uses a very high-end system for its control, protection and monitoring. This system is called as MACH. This computerized system is built with the state-of-the-art electronics, microprocessors and digital signal processors, connected by high performance industry standard busses and fiber optic communication links. They operate on very high standard application software designed by the control design team for which there is a need for experienced control system engineers. The system being continuously evolving, becoming more complex and customized, great deal of test & verification are required.
How you'll make an impact:
We are seeking a highly motivated Computer Science Engineering graduate to join the IT team supporting Manufacturing, Factory Systems, and IT/OT environments. The role will be responsible for managing, supporting, and enhancing business applications, manufacturing systems, and digital solutions that enable factory operations, industrial automation, and operational excellence.
Technical Skills
Application Management
Experience supporting enterprise applications and business-critical systems.
Knowledge of application lifecycle management, change management, and release management.
Exposure to ERP systems such as SAP, Oracle, or equivalent.
Manufacturing & Factory Systems
Understanding of Manufacturing Execution Systems (MES).
Exposure to factory applications such as:
Production Management Systems
Quality Management Systems
Warehouse Management Systems
Traceability Solutions
Digital Factory Platforms
Understanding of Industry 4.0 concepts and Smart Manufacturing technologies.
IT/OT Integration
Basic understanding of Operational Technology (OT) environments.
Familiarity with:
Industrial Networks
PLC/SCADA Systems
Historian Systems
Industrial IoT Solutions
OPC-UA and industrial communication protocols
Ability to work with automation and engineering teams on IT/OT integration projects.
Database & Reporting
Knowledge of SQL Server, Oracle, PostgreSQL, or similar databases.
Experience with data analysis, reporting, and dashboarding tools.
Knowledge of Power BI desirable.
Software & Automation
Basic programming or scripting skills in:
Python
C#
Java
PowerShell
Experience in API integration and application troubleshooting.
Cybersecurity Awareness
Basic understanding of:
Cybersecurity principles
User access management
Application security
OT security concepts
Backup and recovery processes
Support and maintain factory and engineering applications.
Collaborate with Manufacturing, Quality, Engineering, and Operations teams to gather business requirements.
Manage application upgrades, patches, and system enhancements.
Lead or support digitalization and Industry 4.0 initiatives.
Ensure high system availability and user satisfaction.
Coordinate with vendors and global application support teams.
Support IT/OT integration projects across manufacturing facilities.
Maintain system documentation, governance, and compliance requirements.
Drive continuous improvement and automation opportunities within factory operations.
Your background:
Bachelor's degree in computer science engineering, Information Technology, Software Engineering, or a related discipline.
3-8 years of relevant experience in IT Applications, Manufacturing IT, Digitalization, or Industrial Systems (adjust based on position level).
We are a global leader in power technologies and energy systems. Customers across the utilities, transportation, IT such as data centers, industry and Smart Life sectors trust our world-class teams of experts to deliver pioneering and digital solutions across the power value chain. Our solutions help meet the growing demand for electricity – affordably, reliably, sustainably and in a modern way.
We help plan, build, operate, optimize and maintain their power infrastructure, whilst increasing overall flexibility and resilience. Our pioneering technologies and services enable safe and efficient integration, transmission and distribution of bulk and distributed energy generated from conventional and renewable sources.
This guide is for Indian job seekers preparing for Java backend roles, from freshers facing campus and first-job interviews to experienced developers moving into senior positions at product companies and IT services firms. It covers what interviewers ask most in 2025 and 2026 on Java 17 and 21 and Spring Boot 3: OOP, collections, equals and hashCode, streams, exceptions, concurrency and JVM memory, then dependency injection, auto-configuration, REST controllers, validation, JPA and Hibernate, security, microservices and testing. Questions are grouped as easy, medium and hard. Read each answer, compile the code yourself and practise explaining it aloud.
Questions you may be asked
What are the four pillars of OOP, with a Java example of each?
What is the difference between an abstract class and an interface in Java?
What is the difference between method overloading and method overriding?
What is the difference between == and equals() in Java?
