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Masaki VarenneMV
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Masaki Varenne

@masakivarenne

Japanese localization lead at Amazon Prime and LILT, supporting approximately 150 marketing campaigns and reviewing Claude and enterprise software content.

France
Message

At Amazon Japan – Prime Retail Marketing, I supported Japanese localization and quality assurance for campaigns including Prime Day, Black Friday, and Monthly Deals. I supported the localization and launch of approximately 150 campaigns and A/B testing experiments, and led linguistic QA for emails, push notifications, and landing pages.

At Beyont, I coordinate Japanese localization for Pegasystems, reviewing websites, marketing emails, technical documentation, and other customer-facing content. At LILT, I perform linguistic review, QA, UAT, and language consultation for clients including Anthropic (Claude), Intel, Qualtrics, and Juniper Networks.

My work has also included Japanese MTPE for iHerb healthcare and marketing content, and auditing Japanese outputs generated by Large Language Models. Earlier, I managed Linguarama’s Japanese Language Department, overseeing instructor recruitment, training, scheduling, and curriculum development.

Experience

Work history, roles, and key accomplishments

LI
Current

Japanese Language Lead Linguist

LILT

Nov 2024 - Present (2 years)

Perform linguistic review, QA, UAT, and language consultation for AI, SaaS, software, marketing, healthcare, gaming, and DeFi content for clients including Anthropic and Intel.

SU

Japanese Auditor (LLM Project)

SuperAnnotate

Mar 2026 - Jun 2026 (3 months)

Audited Japanese outputs generated by Large Language Models, evaluating linguistic quality, consistency, and compliance while providing actionable feedback.

Education

Degrees, certifications, and relevant coursework

SU

Seitoku University

Associate of Arts, English Literature & Tourism

Associate of Arts in English Literature & Tourism from Seitoku University, Japan.

JE

Japanese Ministry of Education

Professional Japanese Teacher Training Course, Japanese Language Teaching

Completed a Professional Japanese Teacher Training Course (420 hours) certified by the Japanese Ministry of Education.

Tech stack

Software and tools used professionally

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