Hello aspirant, first of all congratulations on getting a seat in CSE seat in Amity Noida and UPES. Both institutes are private institutes and are good for software engineering. However UPES is mainly known for Petroleum related studies and Amity is slightly better for studying CSE. It has a huge infrastructure and good faculty. Amity also has  better placement records than UPES for CSE students. Many companies visit the college for placements because of its location in Greater Noida. Academics are also up to date with latest technology and so I will suggest you to go for Amity Noida.

For further details on both colleges visit - Amity University Noida: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

UPES Dehradun: Admission 2021, Courses, Fee, Cutoff, Ranking, Placements & Scholarship (careers360.com)

BEST OF LUCK!!