CTF wins and cyber drill podiums are fun — they train pattern recognition, fast reading of protocols, and a healthy suspicion of user input. Production is slower: threat modeling, dependency updates, auth hardening, and review cycles.
The overlap is mindset: assume misuse, minimize attack surface, and prove controls with tests where you can. In AI-heavy backends, that also means thinking about prompt injection, tool abuse, and data exfiltration paths — not only traditional OWASP categories.
Security isn’t a layer you paint on at the end; it’s a constraint you design through — the same way you design for scale.