Senior IBM i Specialist | Complex Legacy Systems Analysis & Modernization | RPG ? SQL ? APIs | Freelance Consultant | Open to Remote (EMEA)
Aktualisiert am 04.05.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 04.05.2026
Verfügbar zu: 100%
davon vor Ort: 100%
IBM AS/400
ILE RPG
SQL
Software
REST
JSON
Dutch: Native
English: Fluent
French: Fluent
German: Professional
Spanish: Basic/currently studying

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 1 Monat
2025-04 - heute

Involved in the migration of the IBM i codebase

  • Involved in the migration of the IBM i codebase to GitLab, acting as a key test user
  • Contributing to GitLab pipelines setup for automated build and deployment
  • Being trained in Git and modern DevOps practices
  • Backend development and modernization in an insurance ERP environment
  • Analysis and implementation of new functionalities in legacy systems
  • Focus on maintainability, quality, and future-proof architecture
DAS Insurance
Belgium
28 Jahre 4 Monate
1998-01 - heute

Delivering high-impact consulting and development services

Freelance IBM i Consultant / Architect
Freelance IBM i Consultant / Architect
  • CHC-DEV BV
  • Delivering high-impact consulting and development services for enterprise clients across Europe
1 Jahr 9 Monate
2023-07 - 2025-03

Backend development

  • Backend development using RPG Full Free + SQL
  • Implementation of REST APIs between IBM i and front-end systems
  • Migration from YAJL to SQL JSON processing
  • Contribution to modernization of financial systems
Belfius Lease
Brussels
1 Jahr 6 Monate
2022-01 - 2023-06

ERP optimization and system integration

  • Integration of WMS (Locus/Centric) via web services
  • Development of reusable service programs
Solucious (Colruyt Group)
Bornem
5 Monate
2021-08 - 2021-12

Implementation of XML-EDI

  • Implementation of XML-EDI for automated invoice processing
Antverpia Apotheken (ADC)
Kontich
6 Monate
2021-01 - 2021-06

SAP ? IBM i integration

  • SAP ? IBM i integration for production planning
Alcon / Novartis
Puurs
2 Jahre 10 Monate
2018-03 - 2020-12

ERP enhancements

  • Full lifecycle: analysis ? development ? implementation
  • ERP enhancements (orders, billing, warehouse)
  • SAP integrations
Arvesta
Leuven
10 Jahre 2 Monate
2008-01 - 2018-02

SAP FICO & Retail integration

  • Full lifecycle: analysis ? development ? implementation
  • Developed, improved, and supported invoice control systems & user groups
  • Agile collaboration (Jira, Confluence)
Carrefour
Belgium ? Evere

Aus- und Weiterbildung

Aus- und Weiterbildung

information technology
Bachelor?s in information technology
PHHI Hasselt (PXL)

Position

Position

  • SENIOR IBM i (AS/400) ARCHITECT
  • LEGACY MODERNIZATION SPECIALIST

Kompetenzen

Kompetenzen

Top-Skills

IBM AS/400 ILE RPG SQL Software REST JSON

Produkte / Standards / Erfahrungen / Methoden

Profile:

  • Senior IT consultant with 35+ years of experience, including 28 years as a freelance expert, specialized in IBM i (AS/400) environments
  • Expert in analyzing complex legacy systems, defining modernization strategies, and delivering robust, scalable backend solutions integrating IBM i with modern technologies (REST APIs, SQL, JSON)
  • Strong experience across finance, insurance, retail, logistics, and ERP environments


CORE EXPERTISE:

  • IBM i / AS400 Architecture & Development (RPG IV / Full Free)
  • Legacy System Analysis & Modernization
  • DB2 for i & Advanced SQL (incl. SQL JSON)
  • API & System Integration (REST, JSON, XML)
  • ERP Systems (Finance, Insurance, Retail, WMS, SAP)
  • Performance Optimization & Refactoring
  • DB2 SQL modernization
  • Complex Debugging & Root Cause Analysis


IBM i Ecosystem:

  • RPG IV (Full Free) ? Expert
  • CL, COBOL
  • DB2 for i, SQL


Integration & Modern Technologies:

  • REST APIs, JSON, XML
  • YAJL ? SQL JSON migration
  • Curl, Web Services


Tools & Environment:

  • Git, GitLab
  • VsCode
  • RDi, ARCAD Skipper
  • Jira, Confluence, ServiceNow
  • Control-M


Additional Technologies:

  • C, C#, Java, ABAP
  • TIBCO BusinessWorks / BusinessMatrix
  • Python, VBA


ADDITIONAL VALUE:

  • 25+ years freelance experience
  • Strong ability to understand undocumented legacy systems
  • Proven expertise in IBM i modernization
  • Autonomous, reliable, remote-ready

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 1 Monat
2025-04 - heute

Involved in the migration of the IBM i codebase

  • Involved in the migration of the IBM i codebase to GitLab, acting as a key test user
  • Contributing to GitLab pipelines setup for automated build and deployment
  • Being trained in Git and modern DevOps practices
  • Backend development and modernization in an insurance ERP environment
  • Analysis and implementation of new functionalities in legacy systems
  • Focus on maintainability, quality, and future-proof architecture
DAS Insurance
Belgium
28 Jahre 4 Monate
1998-01 - heute

Delivering high-impact consulting and development services

Freelance IBM i Consultant / Architect
Freelance IBM i Consultant / Architect
  • CHC-DEV BV
  • Delivering high-impact consulting and development services for enterprise clients across Europe
1 Jahr 9 Monate
2023-07 - 2025-03

Backend development

  • Backend development using RPG Full Free + SQL
  • Implementation of REST APIs between IBM i and front-end systems
  • Migration from YAJL to SQL JSON processing
  • Contribution to modernization of financial systems
Belfius Lease
Brussels
1 Jahr 6 Monate
2022-01 - 2023-06

ERP optimization and system integration

  • Integration of WMS (Locus/Centric) via web services
  • Development of reusable service programs
Solucious (Colruyt Group)
Bornem
5 Monate
2021-08 - 2021-12

Implementation of XML-EDI

  • Implementation of XML-EDI for automated invoice processing
Antverpia Apotheken (ADC)
Kontich
6 Monate
2021-01 - 2021-06

SAP ? IBM i integration

  • SAP ? IBM i integration for production planning
Alcon / Novartis
Puurs
2 Jahre 10 Monate
2018-03 - 2020-12

ERP enhancements

  • Full lifecycle: analysis ? development ? implementation
  • ERP enhancements (orders, billing, warehouse)
  • SAP integrations
Arvesta
Leuven
10 Jahre 2 Monate
2008-01 - 2018-02

SAP FICO & Retail integration

  • Full lifecycle: analysis ? development ? implementation
  • Developed, improved, and supported invoice control systems & user groups
  • Agile collaboration (Jira, Confluence)
Carrefour
Belgium ? Evere

Aus- und Weiterbildung

Aus- und Weiterbildung

information technology
Bachelor?s in information technology
PHHI Hasselt (PXL)

Position

Position

  • SENIOR IBM i (AS/400) ARCHITECT
  • LEGACY MODERNIZATION SPECIALIST

Kompetenzen

Kompetenzen

Top-Skills

IBM AS/400 ILE RPG SQL Software REST JSON

Produkte / Standards / Erfahrungen / Methoden

Profile:

  • Senior IT consultant with 35+ years of experience, including 28 years as a freelance expert, specialized in IBM i (AS/400) environments
  • Expert in analyzing complex legacy systems, defining modernization strategies, and delivering robust, scalable backend solutions integrating IBM i with modern technologies (REST APIs, SQL, JSON)
  • Strong experience across finance, insurance, retail, logistics, and ERP environments


CORE EXPERTISE:

  • IBM i / AS400 Architecture & Development (RPG IV / Full Free)
  • Legacy System Analysis & Modernization
  • DB2 for i & Advanced SQL (incl. SQL JSON)
  • API & System Integration (REST, JSON, XML)
  • ERP Systems (Finance, Insurance, Retail, WMS, SAP)
  • Performance Optimization & Refactoring
  • DB2 SQL modernization
  • Complex Debugging & Root Cause Analysis


IBM i Ecosystem:

  • RPG IV (Full Free) ? Expert
  • CL, COBOL
  • DB2 for i, SQL


Integration & Modern Technologies:

  • REST APIs, JSON, XML
  • YAJL ? SQL JSON migration
  • Curl, Web Services


Tools & Environment:

  • Git, GitLab
  • VsCode
  • RDi, ARCAD Skipper
  • Jira, Confluence, ServiceNow
  • Control-M


Additional Technologies:

  • C, C#, Java, ABAP
  • TIBCO BusinessWorks / BusinessMatrix
  • Python, VBA


ADDITIONAL VALUE:

  • 25+ years freelance experience
  • Strong ability to understand undocumented legacy systems
  • Proven expertise in IBM i modernization
  • Autonomous, reliable, remote-ready

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

Das Freelancer-Portal

Direktester geht's nicht! Ganz einfach Freelancer finden und direkt Kontakt aufnehmen.