To be clear, I am a patent agent, not an attorney (I'm pretty sure you understood that, but I hate to assume). I've worked in electronics cooling, data-center, and telecom industries for many years, and I currently work in the surge protection industry. My current title is Sr. Mechanical Engineer, but I have had titles such as "Mechanical Engineer, Patent Specialist", "Patent Agent"; "Mechanical Engineer/Patent Agent", and "Mechanical Engineer II" (all with that patent agent license).
It has definitely been something that makes a hiring manager take a second look. But it's hit or miss. Some companies do not put much value on IP whereas others understand the value of it very well. I'd say about half the time an employer will look at that and not really understand what it has to do with the engineering job they're hiring for (and I'm happy to walk away from them, not wanting to work with or for them). Start-ups typically do, but the pay is going to be pretty low, typically and a lot of times it's more economical for a start-up to hire a patent attorney that does transactional work as well, and they just get by, by hiring new or mid-level engineers.
But there is a whole other tract available to you if you do go for it. For example, I contract patent services through a sole proprietorship I started last year. I have also worked in-house in a law firm (which I would highly recommend before attempting to go it on your own). If you decide to really pursue the patent route, there is good money to be made working in a law firm, and most law firms that do patent work hire Patent Agents. Upward salaries in that arena were almost double what I could ever expect working as an Engineer in the same geographical area. However, I found that I missed doing engineering work too much so switched back to it. And I keep my patent role active by contracting and by doing a bit of patent work in-house. As a PE, now I can offer both engineering and patent services to potential clients. My business is really in its infancy and I don't know exactly where I want it to go yet, but now that I have my PE I have a lot more options.
Be aware of a couple things, if you get a patent agent license 1) no one knows what it is until you explain it to them (for some reason everyone immediately understands what a patent attorney is) 2) once you tell someone in casual conversation you're a patent agent, they will tell you all of their ideas they want to patent and expect you to do it at minimal cost for them.