applied to over 200 jobs and not a single interview

It sounds like you're putting in the effort but might need to refine your approach. Based on the most helpful WSO content, here are some actionable steps to improve your chances:

1. Targeted Networking Over Mass Applications

• Reduce the number of applications: Online applications can feel like a black hole. Instead, focus on building relationships through networking. Attend campus events, reach out to alumni, and schedule informational calls. A targeted approach often yields better results than mass applications.
• Leverage your past internships: Reach out to colleagues or managers from your previous roles at the BB, middle-market bank, or private credit fund. They might have connections or insights into opportunities.

2. Resume Optimization

• Tailor your resume: Customize it for each role. Highlight the most relevant experiences and skills for the specific job you're applying to. For example, if you're applying to IB roles, emphasize your BB IB/S&T internship and any transferable skills from your private credit operations role.
• Proofread meticulously: Investment bankers are known for their attention to detail. Ensure your resume is free of formatting or grammatical errors. Print it out to catch mistakes more easily.

3. Address the Red Flags

• Non-finance/econ major: Use your cover letter to explain how your unique background adds value. Highlight any coursework, certifications, or self-study (e.g., WSO guides) that demonstrate your technical knowledge.
• Lack of club involvement: While you can't change the past, focus on your internships and any other relevant experiences. If possible, join a finance-related club or organization now to show initiative.

4. Refine Your Interview Prep

• Even if you're not getting interviews yet, be ready when the opportunity arises. Practice common fit and technical questions out loud. Mock interviews with friends or mentors can help you sound natural and confident.

5. Follow Up Strategically

• After applying, follow up with a recruiter or someone at the firm. A polite email expressing your interest and asking for advice can make you stand out.

6. Consider a Broader Approach

• If you're set on IB, consider roles that could serve as stepping stones, such as corporate finance, valuation, or Big 4 advisory. These can help you build relevant experience and transition later.

7. Mindset Shift

• Remember, this is just the beginning of your career. One flubbed recruiting season doesn’t define your future. Stay persistent, keep refining your approach, and don’t hesitate to ask for help or advice.

By focusing on networking, tailoring your applications, and addressing potential red flags, you can significantly improve your chances. Keep pushing—you’ve got a solid foundation to build on!

Sources: Cover Letter + Resume Advice, A non-target's failure, Get an edge on the competition - ask Vantage Point MBA your business school application questions, Ask CompBanker, 6 Tips To Boost Your Confidence And Nail Your Next Job Interview