Partnership Marketing Assistant Manager

CASETiFY Open · verified Aug 17, 2026

Tokyo Prefecture Full-time Manager General Marketing

Mid-level General Marketing role at CASETiFY. Tokyo Prefecture · full-time.

Role brief

Growth Roles summary, based on the employer's posting.

What you'll do

Create and run campaigns for anime, IP, fashion, and other portfolio categories
Find partners, negotiate terms, and finalize agreements within company policies
Align senior leaders and internal teams around partner relationships
Manage partner contacts, budgets, timelines, and campaign delivery
Track and report results from co-created content, lead sharing, and events

What you bring

Bring at least five years of partnership or brand marketing experience
Know the anime, IP, and fashion industries and their key players
Manage projects, multiple partner accounts, and campaigns with large corporate brands
Communicate in business-level English, both verbally and in writing
Work independently while contributing well within a team

Who this fits

You’ll suit this role if you bring partnership or brand marketing experience, understand anime, IP, and fashion, and enjoy technology, fashion, and lifestyle brands. You’ll work full time in Tokyo Prefecture, Japan, within a growing start-up team. The role calls for independent work, collaboration, strong problem-solving, and effective interpersonal communication.

From the employer

CASETiFY is one of the leading global lifestyle brands to offer customizable tech accessories. We're industry leaders when it comes to trend forecasting and protecting what matters most; the community platform for creativity and self-expression.

We are seeking an experienced Partnership Marketing Assistant Manager to join our team. The Partnership Marketing Assistant Manager will be responsible for developing and executing marketing strategies to promote our company's intellectual property portfolio, such as anime, IP, Fashion category etc.
The ideal candidate will have a strong background in partnership marketing or brand marketing and experience in relevant industry.

Job Description

Develop and execute marketing strategies to promote our company's intellectual property portfolio, with a focus on various categories such as anime, IP, fashion etc.
Identify and establish partnerships with key players in the relevant industry, including publishers, distributors, and streaming platforms
Research/identify potential partners, negotiate and finalize deals in accordance with company’s contract guidelines and policies
Collaborate with senior management and other marketing team/cross functions to align our internal goals with new and existing partner relationships
Developing and implementing strategic partnerships with other companies to promote products and services
Coordinating with internal departments to develop new products or services in response to customer demand
Manage relationships with external partners and serve as the primary point of contact for partnership marketing matters
Deliver a great experience to our partners when working with our organization - you will represent our brand and be our partners’ liaison internally
Forecast, measure, and report the results of various projects with partners, including co-created and/or co-branded content promotions, lead sharing, and/or event partnerships
Manage budgets and ensure campaigns are delivered on time and within budget

Requirement

5 years of relevant experience in partnership marketing/brand marketing
Strong knowledge of the anime/IP/fashion industry and key players
Experience with project management and managing multiple partner accounts at once
Experience working with large corporate brands on partnership campaigns
Passionate about technology, fashion, lifestyle brands, and be part of a growing start-up team
Great problem-solving skills and interpersonal skills
Proficient in both verbal and written business-level English communication
Ability to work independently and also a good team player