Anyone can switch his career from system support admin to a salesforce developer. Salesforce is an easy tool to learn and use. One can become a salesforce developer even without prior experience. But it is not easy to clear salesforce certification. There are several skills like data modelling, analytical, administration skills and so on that a professional must possess to acquire a salesforce certification. Doing certification adds more value to resumes which creates great impression during interviews.
The best way to become a salesforce developer is to enroll in an industry standard Salesforce Certification Course from reputed training institutions like Intellipaat.
Along with that do check out this video on how Intellipaat helped Poonam in switching her career from System Support Admin to a Salesforce Developer -