Mackenzie Martin

I'm an English content and localization quality specialist, shaped by 10 years inside European tech — editing content, creating standards, and standing up quality systems that make English work naturally in Swiss and DACH company contexts. As a dual French/US citizen based in Strasbourg, I am fully eligible for a Swiss cross-border G-permit, offering a low-friction hire with zero relocation or work-authorization delays.

At BlaBlaCar, I built and ran systematic QA operations covering 7,915 strings across 14 languages — delivering an 88.6% quality implementation rate and earning a 9.75/10 linguist satisfaction rating. I co-developed the company's first cross-functional English content guidelines, created multilingual glossaries, and used in-context reviews to identify issues, improve consistency, and raise the bar for UX-facing copy.

At FizzUp, I was the sole English specialist for five years — translating and localizing 310K words FR→EN — while building every English content standard from scratch. I delivered localization frameworks, language launch processes, and QA/bug resolution workflows that helped scale English adoption across global markets.

Now, I focus on terminology infrastructure, documentation, and workflow optimization: improving delivery efficiency by 45.5% and expanding coverage by 228%, maintaining governance across teams, and tracking quality through 1,100+ test cases. I combine native American English precision with deep European business culture fluency built over 13 years in France to help teams ship confident, high-quality English — reflected in a 9.75/10 linguist satisfaction rating across 16 respondents.