Custom Media is an award-winning integrated marketing agency based in central Tokyo. We are seeking a reliable, detail-oriented, and proactive Finance & Office Assistant to support our financial operations and office administration.

This is a hybrid role suited to someone who enjoys variety, takes ownership of their work, and can manage both numbers and day-to-day office coordination with confidence.

This position supports both finance operations and office/administrative functions. The role is hybrid, requiring at least two days per week working from our Kamiyacho office.

The ideal candidate will be a native Japanese speaker with a good command of English and over three years of office administrative experience.

AIM B2B by Custom Media KK is an award-winning, full-service B2B agency helping global brands connect with decision-makers across Japan and APAC through data-driven, creative marketing—especially in high-growth industries like AI, Clean Energy, Fintech, Healthcare, Manufacturing, and Technology. We specialize in strategy, storytelling, PR, content, and digital marketing that drive meaningful engagement and business growth.

We’re looking for a strategic and hands-on Marketing Manager to build for our B2B Agency Division AIM B2B’s (https://aim-b2b.com/) brand visibility and demand generation—turning our thinking, work, and people into consistent momentum: awareness, credibility, and qualified inbound interest.

You’ll own the day-to-day marketing engine (strategy + content + campaigns + events) while partnering closely with leadership and business development to support pipeline gr...

AIM B2B by Custom Media KK is an award-winning, full-service B2B agency helping global brands connect with decision-makers across Japan and APAC through data-driven, creative marketing—especially in high-growth industries like AI, Clean Energy, Fintech, Healthcare, Manufacturing, and Technology. We specialize in strategy, storytelling, PR, content, and digital marketing that drive meaningful engagement and business growth.

We’re hiring a Business Development Manager to accelerate growth for our B2B Agency Division AIM B2B (https://aim-b2b.com/). You’ll be responsible for building and converting a high-quality pipeline—identifying the right accounts, opening doors, leading consultative sales conversations, and turning opportunities into long-term client relationships.

This is a hands-on role for someone who enjoys outbound + inbound conversion, can speak confidently about B2B mar...

Custom Media, an award-winning integrated marketing agency based in central Tokyo. We are seeking a part-time, detailed-oriented and proactive part-time finance assistant who can organize and execute their duties effectively.

We are seeking a Part-Time Finance Assistant to support our daily financial operations. Key Responsibilities include Invoice processing, Bank reconciliations, Expense management, and Managing accounts payable and receivables. The role is two days per week, offering a hybrid work arrangement (remote and office-based). The successful applicant will be required to work at least one day per week from our office in Kamiyacho.

The Ideal Candidate Profile requires a native Japanese speaker with a good command of English, and 2+ years of finance administration work experience.

Custom Media, an award-winning integrated marketing agency based in central Tokyo. We are seeking a part-time, detailed-oriented and proactive office administrative assistant who can organize and execute their duties effectively.

We are seeking a Part-Time Office Assistant to manage the company's administrative tasks. This role is a hybrid position, requiring the successful applicant to work three days a week, with a minimum of two days based in our Kamiyacho office.

The ideal candidate will be a native Japanese speaker with a good command of English and over three years of office administrative experience.

Custom Media is an award-winning integrated digital marketing agency based in central Tokyo. With more than 17 years of experience in the Japanese market, we offer full-service, integrated marketing solutions that unite data with creativity, and we harness local and international expertise to bridge the gap between Japan and the world.

We are looking for an experienced Editor / Copywriter to join our dynamic agency. This is an exciting opportunity for a talented content professional who wants to work at a leading marketing agency in Japan and play a central role in both editorial and creative content production.

In this role, you’ll work on the media side of the agency, focusing on creating content for GoConnect and Japan Luxury Lifestyle (JLL), our owned lifestyle and luxury platforms that serve the international community in Japan, and INTOUCH, the membership magazine for the...

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 PR Specialist to drive media relations efforts, craft compelling narratives, and secure high-impact media coverage for our B2B clients. This role is ideal for a strong communicator with a passion for storytelling and strategic PR.

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 an Account Manager to lead client relationships, develop strategic marketing and PR campaigns, and ensure seamless execution of projects. This role requires a mix of strategic thinking, client management, and hands-on execution. You will be working in our Client Success team, closely collaborating with internal and external stakeholders, and reporting to the Chief Client Success Officer.

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.

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 Project Manager to join our team and oversee the execution of integrated B2B marketing and PR campaigns. This role requires exceptional organizational skills, strong client communication abilities, and a deep understanding of multi-channel marketing strategies.