This is a job posting written in Korean.
[Refield] Cosmetics Japan E-commerce MD (Senior)
About the company
Hair care like skincare. Constant creates the scalp and hair care brand 'Refield'. We are looking for someone who will not only work within a well-structured framework but also grow that framework and change the market standards. [What We Create] Constant views hair loss not just as a problem of hair but as a 'quality of life issue.' Just as skincare has become a daily routine, we wanted to make scalp and hair care a habit of everyday life. The brand 'Refield' that we created has rapidly grown since its launch, achieving sales of 11.1 billion won last year and establishing a unique position in the domestic scalp care market. We are a 'brand commerce' company that combines quick execution with the long-term vision of the brand. While maintaining the essence of the brand (why), we constantly adapt the expression (message) to market responses, building a single brand asset over time. Now is the turning point for us to expand the strength we have built domestically into Japan and the United States, making a leap as a global brand. Fill the Real, Refilled. • Constant's working method: https://recruit.theconstant.co.kr/ • Interview with CEO Jeong Geun-sik: https://youtu.be/6J2v9CiOrZs [Market-Validated Direction] Refield has redefined hair loss and scalp management not as 'treatment' but as 'a daily routine.' This direction has also been confirmed in the investment market. Amorepacific chose Refield as its first investment in the hair care sector, and in 2026, a Series B investment led by Korea Investment Partners (amounting to 11 billion won) was completed. This decision was based on the growth structure and execution power that Refield has built, rather than short-term performance. • Amorepacific chooses Refield as its first investment in hair care: https://www.insight.co.kr/news/516439 • Refield secures 11 billion won Series B investment: https://www.venturesquare.net/1041693 [What Constant Excels At] • Visible results — Customers can directly verify their changes through our app and scalp scanner. We create products based on over 1 million accumulated scalp data and validate them with data. • Uncompromising R&D — The patented ingredient 'cADPR' independently developed by hair loss specialists. A paper proving its efficacy has been published in the international journal 'Applied Sciences.' We are creating products with ingredients that pregnant women can use safely. - Refield's independently developed 'cADPR' ingredient hair growth promotion paper published in an international journal: https://www.yakup.com/news/index.html?mode=view&cat=12&nid=325138 • Multi-channel operational capability — Achieved the number one position in hair care at Olive Young. We meticulously manage channel-specific data across our own mall, Coupang, Market Gonggu, and Qoo10 to expand growth. • Already global — Selected as Amazon Overall Pick and Amazon's Choice. We operate local businesses in the United States, Japan, and China. We are actively expanding globally into Southeast Asia, South America, and Europe. [Constant's Working Method] Constant transforms tasks that were previously done manually into systems. We rapidly introduce AI automation centered around our self-developed organization and make all decisions based on data. The speed of scaling up is supported by the system. We work based on impact rather than working hours, and we focus on what has been created and pushed through to the end rather than where someone comes from. Work at Constant does not end with 'assigned tasks.' The hypotheses you set become products, and those products leave a mark on someone's scalp and daily life. We provide an environment for intense contemplation and a stage for bold execution simultaneously. Failures that leave clear lessons are always welcome. Experience the joy of growing your career while directly cultivating the market at Constant, which is racing towards an IPO. 'Global Headquarters — People Opening the Next Market from Scratch' We are at the forefront of establishing products verified in Korea in the global market. We are setting up local channels primarily in Japan and North America, promoting the brand through influencers and content, and taking root in the market. The global headquarters is responsible for local businesses in Japan and North America, as well as expanding trading lines into Southeast Asia and South America through global B2B and B2C. Since there is no predetermined answer, we set hypotheses ourselves, and channel operations, MD, and content work as one team. This is a stage where achievements become clearer as the number of countries increases, opening the early stages of a large market with my own hands.
Responsibilities
• Operating Japanese e-commerce channels (Amazon, Qoo10, Rakuten, etc.) • Managing product pages, reviews, and listings tailored to Japanese consumer tone and continuously improving conversions • Optimizing SEO, meta ads, or advertising campaigns within platform channels through data analysis of traffic, conversion, ROAS, etc. • Designing SKU, packaging, and pricing strategies for the Japanese market in collaboration with the product team • Directly managing daily communication with Qoo10 MD and Amazon Vendor representatives
Requirements
• Over 2 years of experience in operating Japanese EC platforms • Experience as an E-Commerce MD or channel operator in the cosmetics/beauty category • A proactive problem solver with the ability to deliver results quickly • Experience in making SKU and promotion unit decisions based on data
Working conditions
• Employment Type: Full-time (3-month probation, 100% salary paid) • Compensation: Negotiable after interview • Working Days: Monday to Friday • Working Hours: Flexible working hours and staggered start times • Start Time: 8:00 AM to 10:00 AM (flexible) • Core Time: 10:00 AM to 5:00 PM • Working hours can be adjusted within 40 hours a week • Work Location: 122 Mapo-daero, Mapo-gu, Seoul, Front One, 15th Floor [We provide generous support for immersion and growth] • Remote Work — We offer opportunities to work efficiently anytime, anywhere • Flexible Working System — Come to work between 8:00 AM and 10:00 AM, and leave between 5:00 PM and 7:00 PM • Workation — You can work from anywhere in the country or abroad • Night Taxi Fare Support — Get home safely at late hours • Unlimited Growth Support — We generously support books, online courses, external training, etc. • Flexible Annual Leave — Use your annual leave freely, no questions asked • Coffee Chat (FIKA TIME) — Take a breather and chat with colleagues amidst your busy routine • Health Check-up — Comprehensive health check-ups are conducted annually • Ad-hoc Quantum Jump — Opportunities for compensation adjustments based on performance • Wedding/Birth Congratulations Fund — We sincerely celebrate weddings and births • (In-law) Parents' 60th Birthday Celebration Fund — We celebrate the special days of members' and spouses' (in-law) parents together https://recruit.theconstant.co.kr/
Benefits
• Ability to communicate in Japanese on a daily basis • Experience in starting a business and launching brands related to consumer goods • Experience in operating Japanese distributors / offline channels
Hiring process
1. Document screening 2. First interview (practical skills / non-face-to-face) └ Depending on the case, an additional assignment screening may be conducted. 3. Second interview (culture fit / face-to-face) └ Depending on the case, a coffee chat may be conducted additionally. 4. Final acceptance Constant is posting the same job advertisement on various recruitment platforms. In the case of duplicate applications, only one application will be reviewed, and a notification email may be sent for the other applications. Please note that this is unrelated to the actual screening results.