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Senior AS400 Engineer-ITProposal • Amsterdam, North Holland, Netherlands
Senior AS400 Engineer-

Senior AS400 Engineer-

ITProposal • Amsterdam, North Holland, Netherlands
24 dagen geleden
Functieomschrijving
Sr AS400 Engineer Amsterdam Netherlands

Location: Amsterdam Start: Immediate Contract: 6 months Experience: 46 years Role Type: DevOps / Engineering

About the Role

We are seeking a Senior AS400 Engineer to join a DevOps team responsible for maintaining enhancing and stabilizing AS400/IBM i applications. You will work across legacy ERP systems complex integrations and lowdocumentation environments ensuring business continuity and high system reliability. The role also includes mentoring engineers and occasionally stepping into Team Lead responsibilities.

Key Responsibilities

  • Maintain and enhance AS400 applications (fixes improvements new logic).
  • Develop and support RPG III RPG IV RPG ILE and RPG Free Format programs.
  • Work with CLP programming DB2/400 embedded SQL and AS400 file systems.
  • Manage job processing batch jobs scheduling and system performance.
  • Analyze data flows APIs and integration dependencies across ERP and enterprise systems.
  • Support interfaces between AS400 and SAP POS logistics and other systems.
  • Perform incident triage troubleshooting and root cause analysis.
  • Work within ITSM processes to meet SLA MTTR and incident reduction targets.
  • Mentor junior engineers and contribute to DevOps delivery KPIs (DORA metrics).
  • Ensure stability-first operations with zero disruption during transitions.

Must-Have Skills

AS400 / IBM i Technical Expertise

  • RPG III / RPG IV / RPG ILE / RPG Free Format
  • AS400 Lansa
  • CLP programming
  • DB2/400 (DB400) embedded SQL
  • AS400 job processing batch jobs scheduling
  • File systems data structures database design

Integration & Application Knowledge

  • Legacy ERP systems and custom-built applications
  • Interfaces with SAP POS logistics systems
  • Data flow analysis API understanding integration dependencies

Incident & Production Support

  • Incident triage and resolution
  • Root Cause Analysis (RCA)
  • ITSM tools and ticketing workflows

Good-to-Have Skills

Automation & AI Enablement

  • Automation tools for repetitive support tasks
  • Knowledge graph/documentation tools
  • AI-assisted troubleshooting or reverse engineering

Modernization Awareness

  • SAP S/4HANA migration exposure
  • Legacy system decommissioning strategies
  • Coexistence scenarios (AS400 SAP transition)

DevOps & Observability

  • Monitoring logging observability
  • CI/CD and release management concepts

Soft Skills

  • Strong problem-solving in ambiguous low-documentation environments
  • Ability to work with complex legacy systems and unclear dependencies
  • Effective collaboration with SMEs SAP teams and multi-vendor ecosystems
  • High learning agility and comfort with reverse engineering
  • Ownership mindset with a stability-first approach
  • Commitment to zero disruption during operations

Why This Role Matters

You will be working at the core of mission-critical enterprise systems ensuring stability reliability and smooth operations across interconnected business processes. Ideal for engineers who thrive in legacy environments and enjoy deep technical problem-solving.


Employment Type : Full Time
Experience: years
Vacancy: 1
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Senior AS400 Engineer- • Amsterdam, North Holland, Netherlands

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