21CTO

Apr 23, 2018 · R&D Management

Why Programmers Hit a Career Wall at 30 and How to Stay Irreplaceable

The article examines the "30‑year phenomenon" that many programmers face, explains how perceived value depreciation leads to career bottlenecks and unemployment risk, and offers practical paths—becoming a tech specialist, industry expert, or manager—to boost irreplaceability and sustain a long‑term career.