RPC LEGACY MODERNISATION

RPG Legacy Modernisation for IBM i / AS400 Systems

Wild Impala Enterprises helps organisations modernise, maintain, and migrate legacy RPG, IBM i / AS400, System/38, and mainframe-based business systems with a practical, low-risk approach.

Discuss a Modernisation Project View Services
~8M
clients & policies migrated
1000s
RPG programs remediated
System/38 → IBM i
platform experience
POLICYPREM.RPGLE
RPG II · fixed RPGLE · free 
// modernised from RPG2 fixed-format
**free
dcl-proc CalcPolicyPremium export;
  dcl-pi *n packed(11:2);
    policyId  char(10) const;
    riskBand  int(5)   const;
  end-pi;

  premium = baseRate(riskBand)
          * loadFactor(policyId);
  return premium;
end-proc;
Business logic preserved
audit-controlled delivery
WHO WE ARE

Wild Impala Enterprises supports organisations that depend on mature, business-critical IBM i / AS400 and RPG systems. The focus is on controlled modernisation, reliable maintenance, and carefully managed migration support — preserving proven business logic while improving structure, maintainability, and long-term system resilience.

Based in South Africa · Enterprise legacy specialists
SERVICES

Specialist RPG & IBM i modernisation services

Migration support, legacy RPG modernisation, and ongoing development and maintenance for business-critical systems.

MIG

IBM i / AS400 Migration Projects

Support for complex legacy system migration projects involving financial accounting, client administration, and insurance policy systems across IBM System/38, mainframe, and IBM i / AS400 environments.

Migration support for high-volume enterprise systems
Financial accounting system migration experience
Client and policy data migration support
RPG recompilation and remediation
Before-and-after audit control support
Production stability and controlled delivery focus
RPG

Legacy RPG Modernisation

Practical, low-risk modernisation of legacy RPG-based systems, including controlled movement from RPG2 fixed-format programs to RPGLE.

Controlled conversion of legacy RPG logic
RPG2 to RPGLE modernisation
RPGLE service programs and reusable procedures
Service catalogue-based structures
Coexistence with existing legacy systems
Preservation of business logic
Improved maintainability and clarity
DEV

RPG Development and Maintenance

New RPG software development, enhancements, and ad hoc maintenance based on client requirements, business rules, and production system needs.

RPG program development
Legacy code analysis
Production support
System enhancements
Reliability improvements
Controlled change delivery
Maintenance of business-critical applications
TRACK RECORD

Proven Legacy Migration Experience

Wild Impala Enterprises brings hands-on experience from major legacy migration and modernisation projects involving financial accounting, client, and insurance policy systems across IBM System/38, mainframe, and IBM i / AS400 platforms.

SYSTEM/38 → MAINFRAME

Financial Accounting Migration

Supported the movement of financial accounting systems from an IBM System/38 platform to a Persetel mainframe environment.

~8 MILLION RECORDS

Large-Scale Insurance Policy Migration

Supported the migration of approximately eight million clients and insurance policies from the Southern Life mainframe environment to Momentum Life’s IBM i / AS400 platform. Responsibilities included recompiling thousands of RPG programs after mainframe files were expanded, together with supporting before-and-after audit control processes.

SOUTHERN HEMISPHERE

Major Insurance Migration

Supported the migration of clients and insurance policies from the Metropolitan Life mainframe environment to Momentum Life’s IBM i / AS400 platform — a project understood to be one of the largest insurance-sector migration projects completed in the Southern Hemisphere.

METHODOLOGY

A Practical, Low-Risk Modernisation Approach

Legacy modernisation works best when it respects the systems that already run the business. Wild Impala Enterprises focuses on practical, controlled transformation — preserving proven business logic while improving program structure, maintainability, and future readiness.

01

Preserve What Works

Protect critical business logic and avoid unnecessary disruption to stable production systems.

02

Modernise in Controlled Steps

Move from legacy RPG structures toward RPGLE, reusable procedures, and service-based designs in an auditable manner.

03

Support Coexistence

Allow modernised components to coexist safely with existing applications during phased transition.

04

Improve Maintainability

Refactor and structure code so future enhancements, support, and knowledge transfer become easier.

WHO IT'S FOR

Built for Organisations Running Critical Legacy Systems

If your organisation relies on long-standing RPG or IBM i / AS400 systems, Wild Impala Enterprises can help you maintain stability today while preparing the system for tomorrow.

Insurance companies
Financial services organisations
Large enterprises
Companies running IBM i / AS400
Businesses with RPG2, RPG3, RPG400, or RPGLE systems
Organisations planning legacy migration projects
Teams needing RPG support or maintenance
Long-standing client, policy, accounting & administration systems
WHY US

Why Work With Wild Impala Enterprises

Deep, hands-on legacy expertise combined with a disciplined, audit-aware delivery mindset.

Deep legacy RPG and IBM i / AS400 experience
Migration experience across System/38, mainframe, and IBM i environments
Practical understanding of high-volume financial and insurance systems
Controlled, audit-aware approach
Focus on preserving business logic
Strong production stability mindset
Modernisation without unnecessary disruption

Planning an RPG, IBM i / AS400, or Legacy Migration Project?

Wild Impala Enterprises can assist with legacy RPG modernisation, IBM i / AS400 support, migration preparation, program maintenance, and controlled system enhancement work.

Contact Wild Impala Enterprises
GET IN TOUCH

Let's talk about your legacy systems

Tell us about your legacy system, current challenge, or upcoming migration project.

EMAIL
[email protected]
PHONE
+27 75 162 7803
LOCATION
South Africa