Three Steps to Legacy Expertise

1. Practice in simulated environments — Use terminal simulators for RPG, SQL, COBOL, and CL directly in your browser. No hardware, no setup.
2. Complete real-world exercises — Learn by solving problems based on actual enterprise workflows. 200+ exercises across multiple tracks.
3. Earn certificates — Track your progress and earn verifiable completion certificates for your training.

Structured Learning Paths

Learn the exact workflows used in enterprise systems:

• RPG & ILE RPG Programming — Core language for IBM i business applications
• COBOL Business Logic — Language still running trillions of transactions daily
• IBM i SQL & DB2 Queries — Master enterprise data management
• 3270 Terminal & JCL — Navigate mainframe-style environments

Certificates of Completion

Finish a training track and earn a professional certificate with a unique credential ID, publicly verifiable at greenscreen-academy.com/verify.

Pricing

• Free — First 3 exercises per track. No card required.
• Starter — 20 exercises per track. From £29/month or £249/year.
• Professional — Full curriculum with 200+ exercises. From £49/month or £399/year.
• Enterprise — Team training with admin tools. Contact sales.

Enterprise Training

Train your development teams safely before production system access. Track readiness, close skill gaps, and certify developers with measurable progress.