Proven IBM i to Java Migrations, Fixed Scope
Yes, moving your legacy RPG or COBOL from IBM i to Java on Linux is a well-understood project. We rewrite your code into clean, human-readable Java. Your legacy AS/400 stays active during testing.
The lowest-cost way off IBM i: our migration tooling automates the repetitive work —you pay senior engineers for judgment, not keystrokes.
How we support IBM i → Java on Linux after migration
- ✓Clean, maintainable Java code — not machine translation
- ✓Keep your legacy AS/400 live during testing
- ✓Fixed-scope project with senior platform engineers
- ✓40-70% savings on legacy platform support
- ✓24/7 US-based support before and after migration
- ✓Rewrite RPG/COBOL into modern Java microservices
No RPG Talent Available
The global shortage of RPG developers makes maintaining critical core business systems increasingly difficult and expensive.
High Cost, Low Integration
Legacy application maintenance costs are high, and integrating RPG screens with modern web or mobile APIs is impractical without a full rewrite.
Complex Legacy Code
RPG subfile screens, CL program interactions, and overlapping *IN indicators make machine-translated code unmaintainable.
IBM i → Java on Linux migration — your questions answered
How do I migrate IBM i to Java on Linux?+
Yes. This is a well-understood project. We first assess your legacy RPG/COBOL code (including subfile screens, CL program calls, and indicators). Then we rewrite it into clean, human-readable Java on Linux. You keep your legacy AS/400 live for end-to-end testing and rollback if needed.
What about RPG subfiles and *IN indicators?+
Subfiles (DSPF), CL program interactions, and global indicators (*IN) are common. But we decode every screen flow and control interaction into structured Java. The result is a maintainable application — not a one-to-one machine translation that's hard to support.
Do I have to cut over all at once?+
No. Your legacy IBM i stays under your existing VENDOR support as long as your vendor contract is active. That gives you time to test and validate the new Java system. If the vendor contract lapses before you finish, our third-party support covers most operational issues on the legacy platform while you complete the move.
What is the timeline and budget?+
Projects typically span 12-24 months with 6-12 senior platform engineers. Budgets range from $400,000 to $4,000,000 depending on code complexity and application scope. We deliver fixed-scope engagements — no surprises.
Start Your IBM i to Java Migration
Don't let a shortage of RPG developers, rising maintenance costs, or integration barriers stall your modernization. Our proven IBM i to Java migrations deliver clean, human-readable Java code on secure Linux infrastructure. No big-bang cutover required — your legacy AS/400 stays active during testing. Typical projects run 12-24 months with 6-12 senior engineers.