The key differences between a System Engineer and a Senior System Engineer lie in experience, responsibility, and leadership. System Engineers typically hold entry-level positions, focusing on designing and maintaining computer systems. Senior System Engineers have more experience, lead projects, provide technical guidance, troubleshoot complex issues, mentor junior engineers.
If you are planning to get into this field then check out this video on how Akshay Borse
got a career switch as a Sr. System Engineer just after completing the Intellipaat Advanced Certification in Cloud Computing & DevOps