Carelon

Hello everyone, I'm a recent graduate from a Tier 3 college with a BTech in Computer Science and Engineering. I secured a position as an Associate Software Engineer at Carelon Global Solutions (Legato Health Technologies) with a starting salary of 4.25 LPA. I have learned that the company offers opportunities in Mainframe development using COBOL, but I am more interested in working on projects involving JavaScript and Python. I am wondering if anyone from the organization can provide insight into whether they strictly assign employees to specific technologies or if there is room for personal preference. Additionally, I am aiming to transition to a product-based company in the future. Could someone please advise me on the optimal timing for making this switch?