How your ethical hacking career begins depends on your current field of work.
If you’re not in an IT field you should definitely try shifting into one. Even though most jobs require you to have a Bachelor’s degree in computer science or cybersecurity-related field, exceptions are made for people with sound knowledge of operating systems, databases and networking! Also, it is nigh impossible to directly become an ethical hacker.
Most ethical hackers begin their career as tech support engineers who climb their way up, by earning certifications like CCNA and CISSP before working towards the ultimate CEH certification.
After earning your CEH certifications, it is time to market yourself as an ethical hacker!
Source : https://www.edureka.co/blog/ethical-hacking-career/