Here is an interesting story about a saint who was an engineer. St. Patrick has been an engineer by profession and is now the patron saint of engineers.
St. Patrick was born in what is the present Scotland, in the late fourth century AD. His father was a deacon in the Christian church, which at that time was widely accepted throughout Britain.
St. Patrick worked as a missionary to spread Christianity throughout the British Isles. As part of this mission, he built churches—including the first churches in Ireland. Before he arrived in Ireland, builders used a dry masonry technique that involved stacking flat stones on top of each other, gradually overlapping the stones to enclose the walls.
St. Patrick was more familiar with the Romanized forms of architecture. It has also been believed that he introduced the concept of arches to the Irish builders, giving them the knowledge they needed for building the traditional stone churches that still mark the Irish countryside today. Because of this, the Catholic Church has deemed him as the patron saint of engineers.