What Happens to Tech Professionals Over 30? A Three‑Stage Career Theory

Many readers wonder what becomes of programmers who are still in technical roles at age 30. Drawing on nearly 20 years of experience, the author (old K) proposes a "Gong" theory that divides most tech careers into three roughly 3‑5‑year phases, visualized as the Chinese character "工".

In the first phase, called "独善其身" (self‑cultivation), graduates spend the first 3‑5 years transitioning from students to workplace adults. The focus is on mastering professional and soft skills, often with mentorship from larger companies. The author advises joining big firms that invest in junior talent, using the abundant time to deepen domain knowledge.

The second phase, "独挡一面" (taking charge), occurs after 3‑5 years of experience when engineers become core contributors and often face intense workloads (the notorious 996). They lead important projects and must decide between a technical or managerial track. The author recommends enhancing management abilities and seeking fast‑growing, especially unicorn, companies to open higher‑level positions.

In the third phase, "兼济天下" (serving the world), after a decade or more, professionals have accumulated experience, industry vision, and energy. They typically hold senior titles (e.g., CTO, VP) and are expected to drive competitive advantage, influence the industry, and leverage networks. The author outlines three possible paths: maintaining current role, taking on larger responsibilities, or entrepreneurship, noting that success rates are higher for those who have survived earlier competitive stages.

The theory emphasizes that earlier stages are more controllable through personal effort, while later stages depend increasingly on opportunities, limited senior positions, and external factors such as industry connections.