Chennai, Tamil Nadu

Job Summary

Role Summary

HCLTech is seeking an experienced Informix 4GL and .NET Developer to support core application development, maintenance, production support, and modernization initiatives. The role requires robust hands-on technical capability across legacy 4GL platforms and modern Microsoft .NET technologies, with the ability to analyze existing application logic, support business-critical systems, and contribute to secure, scalable, and high-performing solution delivery.

The successful candidate will be expected to demonstrate technical ownership, delivery discipline, production stability focus, and the ability to work effectively with cross-functional teams including business, infrastructure, DBA, testing, and support teams.

Key Responsibilities

Key Responsibilities
- Application Development and Maintenance
- Develop, enhance, and maintain Informix 4GL programs, modules, forms, reports, and batch processes.
- Analyse and modify ALPS application logic, workflows, interfaces, and business rules in line with approved requirements.




- Ensure application changes are designed, developed, tested, and implemented with appropriate quality controls.
- Database and Performance Management
- Write, maintain, and optimise Informix SQL queries, stored logic, and database interactions.
- Support SQL tuning, performance analysis, data validation, and reconciliation across integrated systems.
- Work with DBA and infrastructure teams to resolve database-related incidents and performance bottlenecks.
- Modernization and .NET Integration
- Contribute to application modernization by analysing legacy business logic and supporting migration or integration with .NET-based solutions.
- Design and develop hybrid solutions involving Informix 4GL, .NET, APIs, and supporting integration components.
- Production Support and Troubleshooting
- Investigate, troubleshoot, and resolve production incidents, application defects, batch failures, and performance issues.

📌 Development Lead (Chennai)
🏢 HCLTech
📍 Chennai