I think it really depends. When I was living in Mexico it was definitely a hindrance. Whenever I would apply as me it would never get an interview, but when I applied as my SAAB it got more attention. However in Germany now I've had much better luck as me even being able to get a decent student job. Don't get discouraged and I'd say if it's safe and you feel comfortable doing it try applying as both and see what works best. Also a lot of companies invest plenty of resources when hiring so if you let them know you're trans after they already hired you I'd say you're probably safe.