If you are interested in working in the industry (e.g. for a pharmaceutical company), I would recommend looking for internships during the summer and even during the winter break (if allowed). You can try internships in different companies throughout your education to learn more about various areas. Alternatively, you can continue to work with the same company till you graduate. Either way, it will help you gain work experience and meet with professionals in the industry, both of which are important when looking for positions.
Also if there are any career events, symposiums/conferences related to pharmaceutical chemistry, it would be beneficial for you to participate in them as much as you can. These will allow you to follow latest developments in your area as well as help you demonstrate your interest/passion for your future career.
Wishing you all the best!