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About the Role

Mantra Inc. is a global AI startup dedicated to breaking down language barriers through entertainment. We envision a future where people around the world can enjoy the latest manga, anime, and games together, and engage in conversations that transcend national and cultural boundaries. We believe that the respect for other cultures born from a love for these works and interactions among fans will eventually foster mutual understanding across the globe. With this vision of a peaceful, smile-filled future in mind, we are committed to researching AI technology, translating manga, and developing language learning services.

Responsibilities

Downloading and uploading data related to translation work
Creating glossaries and other lists as needed
Other tasks as they arise

Requirements

Currently a sophomore or higher in college
Business-level English proficiency
English proficiency equivalent to a TOEFL score of 75 (as English is the company’s common language)
Able to work 2–3 days a week for at least 4 hours per day (negotiable)
On-site office work is required for the first 3 months after joining

Skills

Google Sheets
Notion
Discord
Strong interest in entertainment and manga
Translation experience or an understanding of the translation industry
Language skills in languages other than Japanese and English
Comfortable communicating in English

Location

Tokyo, Japan

Work Type

Part-time
Hybrid
Contract

Experience Level

Entry Level

Education Level

College Student

Salary/Compensations

¥1,250 - ¥2,000 per hour

Benefits

Full transportation expenses covered (actual costs paid based on company regulations)
Mac provided (with conditions)
Online medical consultation and support services
Lunch subsidy (weekly team lunch)

About the Company

Mantra Inc. is a global AI startup dedicated to breaking down language barriers through entertainment.
We envision a future where people around the world can enjoy the latest manga, anime, and games together, and engage in conversations that transcend national and cultural boundaries.
We believe that the respect for other cultures born from a love for these works and interactions among fans will eventually foster mutual understanding across the globe.
Specifically, through R&D in AI technology specialized for manga and entertainment, we provide services such as “Mantra Engine,” a translation tool that enables high-speed manga translation, and “Langaku,” an English extensive reading app that uses manga.
These achievements have earned us numerous awards, including the HONGO AI Award (2019), Weekly Toyo Keizai’s “100 Amazing Ventures” (2020), the AAMT Nagao Award (2021), the JEITA Venture Award Early Edge Prize (2022), and the “Google Play Best of 2025 Grand Prize in the Self-Improvement Category (Langaku).”
Due to a rapid increase in orders from major publishers and other clients, we are currently seeking translation assistants.
While we are leading the industry with cutting-edge technology, our workplace is characterized by an open and friendly atmosphere where employees feel comfortable speaking their minds.
English is our official language, and we have many international team members, making this an ideal environment for those who want to utilize their language skills and work in a global setting.