You don't mention what skills you acquired during your active service. So I'm taking a wild shot. Most areas of engineering also depend upon control systems an

You don't mention what skills you acquired during your active service. So I'm taking a wild shot. Most areas of engineering also depend upon control systems and software. Have you looked at project / site engineering as an option? Depending upon your interests you could train in chemical, mechanical, environmental or electrical engineering area. Then look for field work. In my experience working on large projects gives you the added satisfaction of being able to say you contributed to the creation of specific projects. Whenever I drive past a power station, sub-station, microwave tower that I worked on, I feel a sense of accomplishment.