AS400 Developer

U3 INFOTECH PTE. LTD.; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

U3 INFOTECH PTE. LTD. in Singapore seeks an experienced AS400 Developer with 3–5 years of hands-on experience to support delivery, enhancements and UAT for critical IBM AS400 applications.

You will lead technical delivery of AS400 enhancements, perform impact analysis, develop and maintain RPGLE, CLLE, SQLRPGLE, and DB2/400 components, and coordinate activities to meet project timelines. Expected involvement includes SIT/UAT, production deployment, and thorough documentation.

Qualifications

• SKILLS: AS400 RPGLE/SQLRPGLE/CLLE, DB2/400, Query/400, DDS, Subfiles, Embedded SQL.
• EXPERIENCE: 3–5 years hands-on AS400/iSeries development and support.
• PROCESS: familiarity with source control and change management.

Responsibilities

• Lead technical delivery of AS400 enhancements and projects.
• Perform impact analysis, effort estimation, and technical solution design.
• Develop, enhance, and maintain AS400 applications using RPGLE, CLLE, SQLRPGLE, and DB2.
• Coordinate development activities and ensure adherence to project timelines.
• Support SIT, UAT, and production implementation activities.
• Manage deployment planning, migration, and post-implementation verification.
• Work with business stakeholders to translate requirements into technical solutions.
• Prepare technical documentation, deployment plans, and handover documents.

Skills

RPGLE

SQLRPGLE

CLLE

DB2/400

Query/400

DDS

Subfiles

Embedded SQL

Source control

Change management

Batch processing

Job scheduling

System integrations

Job description

We are looking for 3-5 years of hands-on experience in IBM AS400/iSeries development and support for this role.

We are seeking an experienced AS400 Developer to support application delivery ,enhancement projects, and User Acceptance Testing (UAT) activities for critical business applications running on the IBM AS400 platform.

Project Delivery

• Lead technical delivery of AS400 application enhancements and projects.
• Perform impact analysis, effort estimation, and technical solution design.
• Develop, enhance, and maintain AS400 applications using RPGLE, CLLE, SQLRPGLE, and DB2.
• Coordinate development activities and ensure adherence to project timelines.
• Support SIT, UAT, and production implementation activities.
• Manage deployment planning, migration, and post-implementation verification.
• Work closely with business stakeholders to understand requirements and translate them into technical solutions.
• Prepare technical documentation, deployment plans, and support handover documents.

UAT Support

• Coordinate and support UAT execution with business users.
• Analyze and troubleshoot UAT defects and production issues.

Production Support

• Investigate application incidents and performance issues.
• Conduct root cause analysis and implement permanent fixes.

Strong knowledge of:

• RPGLE, SQLRPGLE, CLLE, DB2/400 Database, Query/400, DDS, Subfiles, Embedded SQL
• Experience with source version control and change management processes.
• Good understanding of batch processing, job scheduling, and system integrations.

Other Information

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