Japanese Editor & Localizers

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Custom Media is an award-winning, full-service B2B agency that connects Japan with the world, delivering data-driven, creative marketing solutions to help our clients in revolutionary industries—AI, Clean Energy, Fintech, Healthcare, Manufacturing and Technology—shape the future.
Our mission is to empower industries at the forefront of sustainable change to succeed in Japan by creating meaningful connections with their audiences through the power of storytelling.

We are looking for a Japanese Editor and translator to localize compelling, culturally relevant content for B2B clients across various industries. This role requires a deep understanding of the Japanese language, business communication, and marketing best practices.

・Native-level Japanese proficiency with exceptional writing, editing, and storytelling skills.
・Business-level English proficiency (ability to understand and translate complex concepts from English to Japanese).
・3+ years of experience in editing, translating, content marketing, journalism, or PR, preferably in a B2B environment.
・Strong understanding of Japanese business culture and marketing communication styles.
・Experience writing for industries such as technology, finance, professional services, or manufacturing is a plus.
・Familiarity with SEO best practices and digital marketing trends.
・Ability to manage multiple projects and meet deadlines in a fast-paced agency environment.
・Experience in creative localization, transcreation, or marketing copywriting.
・Ability to brainstorm, conceptualize, and adapt brand messaging creatively, not just translate it.
・Strong sense for emotional tone, nuance, and storytelling.
・Experience working with global brands and adapting messaging for local audiences is a strong plus.

Content Creation & Localization
・Translate and edit high-quality Japanese copy for websites, blogs, press releases, case studies, whitepapers, and marketing materials.
・Adapt global messaging and English content into Japanese while maintaining brand voice and cultural relevance.
・Develop persuasive ad copy, social media posts, and email campaigns that resonate with Japanese audiences.

Brand Storytelling & Messaging
・Collaborate with a Creative Director to craft engaging brand narratives that align with client positioning and business objectives.
・Ensure all content adheres to tone, style, and messaging guidelines.
・Collaborate with PR and marketing teams to develop thought leadership content for executives.

SEO & Performance-Based Writing
・Optimize content for search engines, ensuring strong keyword usage without compromising readability.
・Analyze content performance and adjust copy to improve engagement and conversion rates.

Collaboration & Strategy
・Work closely with account managers, PR specialists, and designers to produce integrated marketing materials.
・Stay up to date with industry trends, competitor content strategies, and best practices in Japanese B2B marketing.
・Provide insights on content trends and audience preferences to refine content strategies.

・Bachelor’s degree in Journalism, Communications, Public Relations, Marketing, or a related field.

If you're a driven professional eager to work with companies that are revolutionizing the world, and you're excited to inspire and be inspired by an amazing team, we'd love to hear from you!

Please apply with a cover letter to careers@custom-media.com explaining what about this position appeals to you. Only shortlisted candidates will be contacted for an interview. No telephone calls please.

Our agency is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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・ 9:30am to 6:30pm Monday to Friday
・ Work from home and / or office flexibility

Why Join Us?
・ Work with leading B2B brands in revolutionary industries
・ Be part of a dynamic, collaborative team passionate about storytelling and marketing innovation.
・ Enjoy a flexible, hybrid/remote work environment.
・ Opportunities for professional growth and continuous learning.
・ Attractive salary negotiable based on experience.
・ Transport allowance, work from home allowance.
・ Paid vacations, social insurance and benefits.
・ Full exposure to all aspects of our business.
・ Network of established professionals and senior leaders.
・ Friendly, comfortable environment at a central office in Kamiyacho.

Saturdays and Sundays, National Holidays in Japan, Paid Vacation

Country / Region

Japan

Prefecture (State)

Tokyo

Location (Address)

Toranomon 40MT Building 7F 5-13-1 Toranomon, Minato-ku Tokyo 105-0001

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Apply Send to a friend

Custom Media is an award-winning, full-service B2B agency that connects Japan with the world, delivering data-driven, creative marketing solutions to help our clients in revolutionary industries—AI, Clean Energy, Fintech, Healthcare, Manufacturing and Technology—shape the future.

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