top of page
SJD Designs.
Design Engineer | NPD Specialist | CAD Prototyping | Sustainability Advocate
I am Stephen Donlon.
A Design Engineer with 4+ years experience transforming concepts into market-ready products through sustainable innovation and technical excellence. From generating 100+ product ideas and leading environmental initiatives at Medmix to creating a 1,000,000 sqft layout manufacturing facility for Hexafly, i deliverable measurable impact through CAD expertise, prototyping and cross functional leadership.
Named inventor on 8 published patents, I specialise in solving complex design challenges for industrial machinery, consumer electronic products and sustainably focused solutions.
So let’s create your next breakthrough, together.

Project Case Studies
My Services
1
Electronics
2
CAD Proficiency
3
Design For Manufacture
bottom of page