Yeah you can do with your job and only thing you do practice the questions . our job wont affect you anyway in preparing for service exams 'All the best'
You can do it with job. mera mantra yaad rakho. jab time mile tab padh lo. jitna time mile utna padh lo. life me excuses mat do. no one know better than him other than himself. if you think you can do it. than do not spend time in assesment of decision making. just go for it. if you have a disappointment in mind it is hard to manage for me. than do not jump in fire. just try to give whole ataintion in serching as good as possible job. and a permanent job.