Sofia Navarro
About
Sofia Navarro is a language certification specialist at Examinizer, where she focuses on certification requirements across different hiring markets: which certificates employers actually accept, how CEFR equivalence systems work, and what separates an online certificate from an institutional one.
With experience across Spain, Mexico, and Argentina since 2015, she brings a practical perspective on how language certification works in very different contexts.
Areas of expertise
CEFR certification
A1-C2 equivalences, and which certificates employers and administrations actually recognize.
Language exams
DELE, SIELE, Cambridge, DELF, and online alternatives: differences, cost, and validity.
Hiring markets
Language requirements in job postings across different countries and industries.
Online vs. institutional certificates
When a digital certificate is enough, and when you need an in-person exam.
Editorial policy
All articles are written from direct professional experience. External sources link to primary research, official government guidance, or certification body documentation. Articles are reviewed periodically to ensure accuracy.
Selected articles
- How to Add a Language Certificate to Your CVCertification · Updated May 2026
- Free English Proficiency Test Online — Complete GuideTesting · Updated May 2026
- What CEFR Level Do Employers Expect?Career · Updated May 2026