Hello,

The best way would be to get a position in your current company. If acquirung a direct position does not work out, then volunteer for BA roles within your organization.

Highlight BA roles and responsibilities in your resume (such as communication, writing requirements documents, working as a liaison between business and tech teams in validating systems solutions) and apply for BA positions elsewhere. To get a better understanding of BA roles and responsibilities, look for job descriptions - identify the skills that you have and highight them in your resume. I am not sure how useful would a BA certtification be - but you could check that out too. But I would suggest ensuring that you have some BA skills in your resume.

All the best.