**Approach:** (1) Build—side projects (DuckDB, dbt). (2) Read—blogs, RFCs, release notes. (3) Community—conferences, OSS. (4) Certs—AWS, Databricks. (5) Share—tech talks, RFCs. **Balance:** Depth in one area; breadth in ecosystem. **Why:** Tech evolves fast; DE must stay current....
The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like Adidas. The answer also includes follow-up discussion points that interviewers commonly explore.
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