Senior Instructional Designer ยท L&D Specialist

Marcus
Rummler

I turn evolving enterprise systems into training that gets users ready on time.

10+ years designing end-to-end learning for ERP & SaaS implementations and business transformations, including IFS Cloud, Duck Creek, Yardi Voyager, Oracle HCM and Salesforce. Kirkpatrick-certified, TAE40110 qualified, and fluent in AI-augmented content workflows. I build the tools as well as the training.

๐Ÿ“ Penrith NSW, Australia training@retsagroup.com.au +61 433 599 100
10+
Years in ID
15+
Enterprise rollouts
8
ERP / SaaS platforms
3
Live AI products
Selected Work01 / Portfolio
AI Builds02 / Shipped with AI

Tools and learning experiences I design and build using AI such as Claude and Codex, as part of my daily workflow. Proof that I don't just write about AI in L&D; I ship with it.

Experience03 / 2016 โ†’ Now
Tools & Systems04
What clients say05