To be considered for a Senior Analyst position, you need strong analytical skills, domain knowledge in the relevant industry, technical proficiency in data analysis tools, problem-solving abilities, effective communication and presentation skills, leadership and mentoring capabilities, and business acumen to align analysis with organizational goals.
If you are planning to get into analytics domain then check out this video on how Manjunathareddy became a Senior Analyst with a good salary hike just after completing Intellipaat's Data Analytics For Business Program.