Certifications demonstrate structured knowledge, commitment, and a foundational understanding of industry standards—making them valuable for regulated fields or getting past initial ATS screening.

Proof of work—such as open-source code, live portfolios, published case studies, or revenue-generating side projects—proves you can translate theory into tangible business outcomes. While certifications show you passed a test, real-world assets show you solved an actual problem under real constraints.

​In short: Certifications earn you a spot at the starting line by validating your knowledge, but proof of work closes the deal by proving your performance.