Plant & fabrication
Heavy materials processing, structural steel, sheet metal, pumps, pipework and coatings. Fabrication, breakdown response, preventative maintenance and practical fault-finding.
ABOUT / JOHANNES “MARNUS” DE WET
I learned to solve problems where the work happens: at the machine, on the floor and between departments. Building software is an extension of that experience.
THE SAME THINKING, DIFFERENT TOOLS
Drawings. Material. Fit-up. The physical reality.
People. Maintenance. Capacity. Delivery.
Ownership. Evidence. The next decision.
FROM THE FLOOR UP
I’m a trade-qualified boilermaker and fabricator with approximately 18 years across manufacturing, maintenance, production and operations in South Africa and Australia.
I started with fabrication, welding, plant repair and fault-finding. That work taught me to check the real conditions: the worn bearing, the pipe alignment, the drawing revision and the access nobody considered.
Production and maintenance leadership widened the picture. A local fix still has to respect the labour, material, quality, schedule and customer commitment around it. Someone needs to own the next action.
That is the thread running through my digital work. A schedule must understand the shift. A handover must carry the revision. A dashboard must tell someone what to do. AI must work from controlled evidence and leave the decision with an accountable person.
EXPERIENCE THAT CARRIES THROUGH
Hands-on knowledge, leadership responsibility and the ability to build the tools myself.
Heavy materials processing, structural steel, sheet metal, pumps, pipework and coatings. Fabrication, breakdown response, preventative maintenance and practical fault-finding.
Site measurement, practical 3D arrangements, fabrication planning, installation and commissioning carried as one information chain.
Planning, labour allocation, quality, maintenance and workflow across laser cutting, folding, fabrication, coating, fit-out and dispatch.
Quoting, materials, procurement, inventory, reporting, invoicing and customer communication. Understanding the cost of an unclear status or repeated failure.
HOW I BUILD TODAY
Sometimes the answer is a clearer process. Sometimes it is a spreadsheet, script, Microsoft workflow or small web application.
I use AI to help analyse and construct systems, with bounded tasks, test evidence and clear release decisions. I keep the same discipline I would expect of physical work: measure, check and verify.
See that thinking in practiceQUALIFICATIONS & STANDING
Based in the Hunter Region, New South Wales. Remote Australia-wide; onsite work by arrangement.
View professional résuméStart with the real problem
Bring the problem as it is. You don’t need a software brief or an AI use case.