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Senior LANSA Developer – IBM i AS400

ITProposal


Job Location:

Amsterdam - Netherlands

Monthly Salary: Not provided by the employer
Posted: 2 September 2026 (Yesterday)
Application Deadline: 30 November 2026
Vacancies: 1 Vacancy

Job Summary

Senior LANSA Developer IBM i / AS400

Requirement ID:
Location: Amsterdam Netherlands
Start Date: ASAP
Duration: 6 Months
Experience: 810 years
Employment Type: Contract
Language: Dutch & English

About the Role

We are looking for a Senior LANSA Developer with extensive experience in LANSA development and IBM i / AS400 environments.

The successful candidate will be responsible for developing maintaining and supporting business-critical applications running on LANSA and IBM i (AS400/iSeries) platforms. You will work with LANSA development frameworks RDML/RDMLX DB2/400 and SQL while supporting application performance production issues and ongoing enhancements.

This is a senior-level position requiring strong technical expertise analytical skills and the ability to work independently in an Agile environment.

Key Responsibilities
  • Design develop enhance and maintain applications using LANSA.
  • Develop applications using:
    • Visual LANSA
    • LANSA RDML
    • RDMLX
    • LANSA Frameworks
    • LANSA Repository
  • Develop and maintain application screens business logic and underlying processes.
  • Analyze business and technical requirements and translate them into effective LANSA solutions.
  • Work with IBM i / AS400 / iSeries environments.
  • Develop and maintain applications using DB2/400.
  • Manage and troubleshoot IBM i components including:
    • Job queues
    • Batch processing
    • Message queues
    • System monitoring
    • Application processes
  • Investigate and resolve production issues within LANSA and IBM i environments.
  • Perform application and database performance troubleshooting.
  • Develop and optimize SQL queries.
  • Analyze and resolve production data issues.
  • Support data modelling and database-related activities.
  • Collaborate with business users technical teams and other developers to deliver application enhancements.
  • Participate in Agile ceremonies and follow Agile development practices.
  • Maintain technical documentation and support application knowledge transfer.
  • Contribute to continuous improvement of existing applications and development processes.
Must-Have Skills & Experience
LANSA Development
  • 8 years of software development experience with strong experience in LANSA.
  • Extensive hands-on experience with:
    • Visual LANSA
    • RDML
    • RDMLX
    • LANSA Frameworks
    • LANSA Repository concepts
  • Strong experience developing screens and application business logic.
  • Ability to troubleshoot and maintain existing LANSA applications.
  • Experience working on enterprise-scale LANSA applications.
IBM i / AS400
  • Strong hands-on experience with IBM i / AS400 / iSeries.
  • Experience with DB2/400.
  • Understanding of IBM i job queues and batch processing.
  • Experience working with message queues.
  • Experience with system monitoring and operational support.
  • Strong production troubleshooting and performance analysis skills.
SQL & Database
  • Strong SQL development skills.
  • Experience with DB2 databases particularly DB2/400.
  • Understanding of data modelling and database structures.
  • Experience troubleshooting production data issues.
  • Strong query optimization and performance-tuning skills.
  • Knowledge of database administration and DBMS concepts.
Agile & Collaboration
  • Experience working within an Agile development environment.
  • Strong analytical and problem-solving skills.
  • Ability to work independently and take ownership of technical tasks.
  • Good communication skills when working with technical and business stakeholders.
  • Ability to document technical solutions and support knowledge transfer.
Technical Competencies
  • LANSA
  • Visual LANSA
  • RDML / RDMLX
  • LANSA Frameworks
  • LANSA Repository
  • IBM i
  • AS400 / iSeries
  • DB2/400
  • SQL
  • Database Administration
  • Data Modelling
  • Query Optimization
  • Batch Processing
  • Job Queues
  • Message Queues
  • System Monitoring
  • Production Support
  • Performance Troubleshooting
  • Agile Development
Language Requirements
  • Dutch: Required
  • English: Required

The candidate should be able to communicate effectively in Dutch and English in a professional working environment.

Ideal Candidate

The ideal candidate is a senior developer with deep expertise in LANSA and IBM i/AS400 environments. You should have strong hands-on development experience combined with the ability to troubleshoot production issues optimize SQL and database performance and maintain business-critical applications.

Experience with legacy and enterprise application environments combined with a modern Agile way of working will be highly valuable.

Contract Details

Role: Senior LANSA Developer
Requirement ID:
Location: Amsterdam Netherlands
Start Date: ASAP
Duration: 6 months
Experience: 810 years
Language: Dutch & English
Employment Type: Contract