It is okay if you want to switch your career, choosing your domain is all up to you. But let me tell you, the competition outside the market is really tough. Though you have work experience, the culture and the work environment will be different in IT firms. If you are determined to shift to technical zone, I would suggest you please, try taking up training or course on upcoming technology in some institution where they can provide reference based job as well. Many institutions have a tie-up with companies so that it will be a step easier for the candidates to search for a job.