Senior LANSA Developer – IBM i / AS400 - 10941914

Itproposal; Amsterdam; On-site; EUR 85,000 - 120,000; Full time

Job summary

Itproposal is seeking a Senior LANSA Developer to join our team in Amsterdam, Netherlands. The role centers on LANSA development in IBM i / AS400 environments, with responsibilities spanning RDML/RDMLX, DB2/400, SQL, and performance optimization.

The candidate should have 8–10 years of hands-on LANSA experience, strong troubleshooting skills, and the ability to work independently in an Agile setting. Dutch and English language skills are required.

Qualifications

• 8+ years of software development experience with strong LANSA expertise.
• Hands-on with Visual LANSA, RDML, RDMLX, LANSA Frameworks and LANSA Repository concepts.
• Experience building enterprise LANSA applications and troubleshooting existing LANSA systems.
• Strong knowledge of LANSA screens, business logic, and performance optimization.

Responsibilities

• Design, develop, enhance, and maintain applications using LANSA.
• Develop applications using Visual LANSA, LANSA RDML, RDMLX, LANSA Frameworks and LANSA Repository.
• Develop and maintain screens, business logic, and underlying processes.
• Analyze requirements and translate into LANSA solutions.
• Work with IBM i / AS400 environments and DB2/400.
• Troubleshoot production issues and optimize SQL queries.
• Collaborate with stakeholders in an Agile environment and document solutions.

Skills

LANSA development

IBM i / AS400

RDML / RDMLX

SQL / DB2/400

Agile / Scrum

Tools

Visual LANSA

LANSA Frameworks

LANSA Repository

Job description

Senior LANSA Developer – IBM i / AS400

Requirement ID: 10941914
Location: Amsterdam, Netherlands
Start Date: ASAP
Duration: 6 Months
Experience: 8–10 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: 10941914
Location: Amsterdam, Netherlands
Start Date: ASAP
Duration: 6 months
Experience: 8–10 years
Language: Dutch & English
Employment Type: Contract