if you are very good, nothing is a must per se
• Product-minded engineer: you turn messy workflows into clean product, then ship the code.
• Enterprise integration depth: OAuth, consent, scopes, service accounts, webhooks, rate limits, and strange API behavior do not scare you.
• Customer ownership: you can take a named customer or product surface from first conversation to live usage.
• AI native: you have built with language models, built for language models, and have opinions on agents, MCP, evals, and tool choice.
• Systems judgment: you think in rollout paths, rollback paths, security exposure, version skew, and maintainability.
• Clear writer: your specs, docs, and customer updates earn trust under deadline.