Pros
DSDP: great for anyone who's serious about building a variety of technical skills, you get to take classes at UMass CICS as a non-degree or Master's student, smaller tightly-knit group located in Amherst, emphasis on mentorship/development, gain business experience from working with a variety of internal MassMutual teams, great pay right out of college, career opportunities available after the 3-year program. I'm still excited to come to work every day. It has a research lab/startup, rather than a corporate office, vibe. A typical project lasts several months and has a few phases, so you're not stagnating on tasks--I'm constantly learning. I'm given both mentorship and autonomy, and have opportunities to touch all aspects of a data pipeline. The management/senior management is approachable, and my peers are pretty great. MassMutual in general: good employee benefits (particularly the federal credit union, life insurance obviously), accessible and helpful HR, a variety of interesting problems that need solving
Cons
Don't love the high deductible health plan options