Job Description
Role Title: Informix 4GL and .NET Developer
nLocation: Chennai
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nWe are seeking an experienced Informix 4GL and .NET Developer to support core application development, maintenance, production support, and modernization initiatives. The role requires solid hands-on technical capability across legacy 4GL platforms and contemporary 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.
nThe 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.
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nKey Responsibilities
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Application Development and Maintenancen
Develop, enhance, and maintain Informix 4GL programs, modules, forms, reports, and batch processes.n
Analyse and modify ALPS application logic, workflows, interfaces,



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

📌 Informix 4gl Developer Tamil Nadu
🏢 HCLTech
📍 Tamil Nadu