What is the difference between a senior and a junior developer?

A junior writes code that works on their machine; a senior ships systems that survive real users, bad input and 3 a.m. incidents. Seniors cost more per hour and less per project, because they avoid the rewrites and dead ends juniors learn on your budget.

Answered by

Ijaz Khan, Senior Full Stack Developer

4+ years shipping production SaaS, AI products and scalable backends for clients worldwide. Available for freelance projects and full-time roles.

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