As an interviewer, I would prioritize candidates who can demonstrate hands-on experience with high-availability financial systems. Key evaluation points would include: deep understanding of distributed transaction patterns, proven performance optimization skills, and the ability to articulate solutions for message reliability and idempotency. Practical experience with the exact tech stack (Java 21, Spring Boot 3.x, Nacos) would carry significant weight. I'd particularly value examples of past work involving 10K+ QPS systems or financial data processing.