No. Getting an ECA to meet the requirements of the Federal Skilled Worker Program does not mean that your work experience and professional credentials are automatically recognized in Canada. You must still go through the process of getting your license.
Each province or territory in Canada has the power to regulate and license professions. Licensing is generally done through provincial or territorial regulatory bodies.
If you plan to work in a regulated profession, you should contact the regulatory authority in the province where you plan to work to find out more about how to get a license.
Note: Completing an Express Entry profile is the first step to immigrate to Canada permanently as a skilled worker. Completing an Express Entry profile does not guarantee that you will receive an Invitation to Apply for permanent residence. An Invitation to Apply for permanent residence will be based on your score and rank in the Express Entry pool using the Comprehensive Ranking System.