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Language Specialist - Japanese

Tokyo💼 Full-time🗓 2026-08-28 → 2026-09-25

Core

Linguistic consultant for Japanese shaping AI translation products, evaluating data quality, and guiding the freelance linguist network.

Role type

Senior IC Japanese linguist (AI/ML product)

Builds

DeepL's Japanese language AI platform and translation features

Domain

AI / Machine Translation / Linguistics

Deliverable

production ML models | product features

Required skills

Japanese (native-level), English (C1+), machine translation error analysis, linguistic quality assessment, experiment design, AI prompting, stakeholder communication

Preferred skills

NLP/LLM experience, research best practices, cultural context of Japan

Technologies

AI, LLMs, NLP

Responsibilities

Test and evaluate DeepL's products and features before and after launch; Assess linguistic quality of data generated by humans and machines; Design tests to identify suitable freelancers for linguistic projects; Evaluate freelance linguist work and provide actionable feedback; Investigate user language complaints and offer linguistic analysis; Partner with stakeholders on experiment and evaluation design; Explain linguistic phenomena to diverse audiences

Seniority

Senior, hands-on IC

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