Human Engineers originate from their need to survive and adapt. While not inventing the Engineer or adding any real contribution to the Engineer’s advancement. Engineers started to appear around the time the information got around to them from the Asura or from slain Charr Engineers. Humans have been involved in their own research and development of technologies, but most of the technology is geared towards defense rather than offense or sheer experimental value like the Charr or Asura.
Human Engineers are most likely survivors who utilize whatever they are given as a means of surviving. Most, were likely thieves who found out about the technology and began to use it to further their survivability among the streets and slums of their respective capital cities. Others are soldiers who realize the powerful technology as a means of reclaiming Ascalon and taking out the Charr threat.
Despite not contributing anything major to Engineering, Human Engineers do contribute to the profession as a whole. Humans bring a number of things to the table that the Charr and Asura are unable to, such as hybridization of technology. Most likely, the Healing Turret and the mines/bombs are results of human tinkering due to being much smaller than their primary enemies, the Charr.
As of now, Engineers have been utilized to create siege engines to help take on the current threat of the Elder Dragons and defending their few remaining bastions. In addition, they serve a primary part of the military and scout teams in the defense of what remains of Human Civilization. We have seen use of Engineer technology is scout teams set up to utilize guerrilla warfare in ambushing potential invasions.
Roleplaying a Human Engineer is very flexible. Because there have been no real achievements from Human Engineers, there is no fixed pride in industrialization or alchemy like the Charr or Asura. Engineers can come from any walks of life, but are more likely soldiers or street rats. Nobles most likely become Engineers to make use of the fast growing technology in the fast evolving society.
Norn Engineers are few and far between. The Norn culture is one of Warriors who pride themselves in their physical prowess or mental capabilities. Basing themselves on their ability to combat foes using their natural capabilities and not relying upon gadgets to get the job done. However, since the threat of the Elder Dragons and the loss of all but 4 of their Primal Spirits and homeland, the Norn have grown desperate to defeat Jormag, who is the immediate threat to the Norn way of life.
While most of the Norn will shun the idea of using technology and outside forces to solve their problems. Unlike Guardians, Elementalists or any other type magic which is granted from their Primal Spirits, Engineers rely solely on outside technology. Those few who choose to become Engineers seek to find new ways to take down the ever pressing threat of Jormag and his mindless hordes. We see Eir taking advantage of Asura Engineering in Edge of Destiny as a means of fighting back against Jormag and the dwindling population of her village. Although Eir never actually developed any of the technology herself.
Roleplaying a Norn Engineer is a tricky task as you are essentially on the final brinks of desperation for defeating Jormag. You have attempted everything, lost many allies and friends on the battlefield, or even your patron spirit. You are willing to do anything, even if it means embracing outsider help with the threat of the Elder Dragons and their fearsome armies.
The Sylvari as a whole are a very curious race. Having only been around for the past 25 years, the Sylvari pursue all forms of knowledge with childlike wonder as to how their new world works. As such, any Sylvari who becomes an Engineer does so out of sheer curiosity of how it works rather than any means of creating or defending themselves. And while they will use the technology for combat, to them, it is another adventure in learning about the world.
Sylvari approach Engineering in a completely different way than the other races, in that the approach it from a side of wonder than a side for a purpose. Because of this approach, Sylvari Engineers can see things from a much different side than that of the Charr or Asura who over complicate things in the pursuit of knowledge or crafting the deadliest of weapons.
Roleplaying a Sylvari Engineer is the same as with any other type of Sylvari. You are driven by your curiosity much like a child.
Well, I will apologize for this one. In all honesty, this took the longest to write up due to there not actually being much information on Engineers of the other 3 races. Charr and Asura are the dominant forces in the Engineering world.
Anyways, I am going to start to make my posts shorter, but more concise when it comes to my arguments and opinions on various things. But honestly, how many of you readers actually enjoy reading those massive posts about my theories? Leave a comment below, I am interested if you guys even like to read them.