As per your request I am giving you information regarding opportunities after MCA degree.

As no doubt MCA is a better option after B.sc(IT), yet it will be better to continue with the job and join evening college for MCA. Practical experience with a good IT company will be definitely better then the new degree. Completing MCA gives you the development of the application software which are used in various organizations.

Career prospects of MCA:
Sr. Software Eng or Sr. Software developer,
Software Architech
Design Engineer
Sr. Design Engineer
Engineer Softwaer Testing
Sr. Eng. Soft Testing
Team Lead
Assistant Proj Manager
Proj Manager
Application Developer
Sr. Application Developer
Application Engineer
Sr. Application Engineer
Product Engineer
Sr. Product Engineer
Product Head
Sofware Analyst/ Analyst
Lead Analyst
Sr. Analyst
Tech Lead
Service Head
Directors and above
Consultant / Sr. Consultant

Top companies which provides software jobs to MCA students:
Google
HP
IBM
Microsoft
Juniper systems
Goldman Sachs
Adobe
CISCO
Intel
Amazon