Certificates can help you. However, you must be really competent. Companies pay more attention to hands-on experiences. Some people get certifcates by learning by heart, and that does not make much sense. For instance,
there has been an overproduction of MCSE. Companies won't give you a job offer simply because you have a
Java 2, OCP, or other certificates. At present, CCNP and CCNA have a relatively high reputation. The important thing is that you have some true skills. If you are really good at some fields, you don't need any certificates.