Senior AS400 Application Engineer (IBM i)

STAFIDE

Amsterdam, Netherlands

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• Recruiter Assigned aswin.d@stafide.nl
• Industry Technology
• Function Others
• Work Experience 4-6 years
• City Amsterdam
• Country Netherlands

As a Senior AS400 Application Engineer (IBM i), you will:

• Maintain, enhance, and support enterprise AS400 (IBM i) applications by implementing application fixes, enhancements, and production changes.
• Develop and maintain applications using RPG III, RPG IV, RPG ILE, RPG Free Format, CLP, and LANSA.
• Design, develop, and optimize DB2/400 (DB400) databases using embedded SQL.
• Manage AS400 job processing, batch jobs, scheduling, file systems, and database structures.
• Analyze, troubleshoot, and resolve production incidents while conducting Root Cause Analysis (RCA) to prevent recurring issues.
• Support ITSM processes by managing incidents, service requests, problem management, and change activities while meeting SLA, MTTR, and other operational KPIs.
• Analyze and maintain integrations between AS400 and enterprise systems, including SAP, POS, logistics, and other business applications.
• Evaluate application interfaces, APIs, and data flows to ensure seamless integration across enterprise platforms.
• Collaborate with DevOps teams to support deployment activities, release management, monitoring, and operational improvements.
• Mentor junior engineers, provide technical guidance, and assume Team Lead responsibilities when required.
• Support legacy application modernization initiatives, including coexistence strategies with SAP S/4HANA migration programs.
• Participate in reverse engineering and knowledge discovery for legacy systems with limited documentation.
• Maintain technical documentation and follow development standards and operational best practices.
• Ensure business continuity by delivering stable, secure, and reliable application support with minimal operational disruption.

What You Bring to the Table:

• 4-6 years of experience in AS400 (IBM i) application development and production support.
• Strong hands-on experience with RPG III, RPG IV, RPG ILE, RPG Free Format, CLP programming, and LANSA.
• Expertise in DB2/400 (DB400) and embedded SQL development.
• Good understanding of AS400 job processing, batch scheduling, database design, file systems, and data structures.
• Experience supporting legacy ERP applications and custom-built enterprise systems.
• Knowledge of enterprise integrations involving SAP, POS, logistics, and other business applications.
• Hands-on experience with incident management, Root Cause Analysis (RCA), ITSM processes, and ticketing tools.
• Understanding of DevOps practices, monitoring tools, observability, CI/CD concepts, and release management.
• Exposure to automation tools, AI-assisted troubleshooting, and documentation platforms is an advantage.
• Familiarity with SAP S/4HANA migration initiatives and legacy system modernization strategies is desirable.
• Strong analytical, troubleshooting, and problem-solving capabilities.
• Excellent communication, collaboration, mentoring, and stakeholder management skills.
• Ability to work effectively in complex enterprise environments with limited documentation and evolving business requirements.

You Should Possess the Ability To:

• Develop, maintain, and enhance enterprise AS400 applications while ensuring high availability and system reliability.
• Troubleshoot complex production issues and implement sustainable solutions through effective Root Cause Analysis.
• Design and optimize DB2/400 databases and embedded SQL queries for performance and scalability.
• Support and maintain integrations between AS400 and enterprise platforms.
• Work effectively with business SMEs, SAP teams, vendors, and cross-functional engineering teams.
• Mentor junior engineers and provide technical leadership when required.
• Support DevOps initiatives, release management, monitoring, and continuous service improvement.
• Contribute to application modernization while ensuring uninterrupted business operations.
• Adapt quickly to undocumented legacy applications through reverse engineering and knowledge discovery.
• Deliver high-quality solutions while maintaining a strong focus on operational excellence and business continuity.

What We Bring to the Table:

• Opportunity to work on enterprise-scale AS400 (IBM i) applications supporting critical business operations.
• Exposure to modernization initiatives involving SAP S/4HANA migration, DevOps practices, and enterprise integration projects.
• A collaborative engineering environment focused on operational excellence, innovation, and continuous improvement.
• Opportunities to work with experienced technical professionals on complex legacy modernization programs.

Let’s Connect

Want to discuss this opportunity in more detail? Feel free to reach out.

Recruiter: Aswin Dhanvandhar

Phone: +31 20 369 0609 ; Extn :141

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