Dear applicant your selection into IT companies is totally led by your abilities, your communication skill and capabilities of hard work. When it comes to Online Courses, yes you can do some certified courses available in the online portals like Coursera, Udemy, HP, Udacity, IBM etc. That would make your CV rich, but that doesn't imply that if you do not pursue such courses you will not be selected. Since knowledge has no boundaries you can boost your skill, embrace your knowledge and showcase your talent.

Good luck!!