Minimalist Vector Illustrations for Engineering Books

I'm seeking a skilled graphic illustrator to create vector illustrations for engineering technical books. The illustrations need to be simple and minimalistic.

Core Requirements:
- Tools and machinery
- Diagrams and schematics
- Figures and characters
- Geological and mechanical illustrations

Skills and Experience:
- Proficiency in Adobe Illustrator and Photoshop
- Strong portfolio in technical illustrations
- Experience in engineering-related visual content
- Attention to detail and ability to follow specific guidelines

Please provide samples of similar work.