Ecommerce Manager Japan - THG Nutrition | Myprotien

About THG 

We are THG, a global ecommerce group on a mission to be the global online leader in beauty and sports nutrition. 

Our portfolio of leading retailers and brands such as LOOKFANTASTIC, Myprotein, ESPA, Perricone MD, and Cult Beauty form our two core businesses: THG Beauty and THG Nutrition. 

With us, you’ll go further, faster. What are you waiting for? 

What You’ll Be Doing:

As Ecommerce Manager Japan,  you will take ownership of Japan’s digital trading performance and customer journey, ensuring best-in-class ecommerce execution. 

Key Responsibilities:

Ecommerce Strategy & Growth

• Develop and execute the ecommerce growth strategy for the Japan market


• Drive revenue growth, conversion optimisation, and customer acquisition initiatives


• Identify new commercial opportunities to increase online sales performance

Website Trading & Merchandising

• Manage day-to-day trading performance across the Japanese ecommerce platform


• Optimise product merchandising, site navigation, and landing pages


• Build promotional calendars aligned with seasonal campaigns and product launches

Performance Marketing Collaboration

• Partner closely with paid media, CRM, SEO, and affiliate teams to maximise traffic and ROI


• Align digital marketing campaigns with ecommerce sales objectives


• Support customer retention and loyalty strategies

Customer Experience Optimisation

• Continuously improve website UX and customer purchase journey


• Analyse user behaviour and identify friction points impacting conversion


• Implement A/B testing and conversion rate optimisation initiatives

Data & Performance Analysis

• Monitor daily, weekly, and monthly ecommerce KPIs


• Analyse website traffic, customer behaviour, conversion funnel, and campaign performance


• Produce insights and recommendations to improve commercial performance

Market & Localisation Management

• Ensure all ecommerce content and campaigns are fully localised for Japanese consumers


• Monitor local market trends, competitor activity, and customer preferences


• Collaborate with global teams to adapt international strategies for the local market

What We’re Looking For

Required Experience:

• 4+ years experience in ecommerce, digital trading, or online retail management


• Proven track record driving online revenue growth in ecommerce businesses


• Strong understanding of ecommerce KPIs including conversion rate, AOV, CAC, retention, and ROAS


• Experience managing website merchandising and digital trading calendars


• Strong analytical skills with experience using Google Analytics, Shopify, Adobe Analytics, or similar platforms


• Experience working cross-functionally with marketing, CRM, and product teams


• Native or fluent Japanese language skills


• Strong business-level English communication skills

Preferred:

• Experience working in health, fitness, beauty, lifestyle, or FMCG brands


• Experience in DTC (Direct-to-Consumer) ecommerce brands


• Understanding of Japanese digital consumer behaviour and local ecommerce trends


• Experience with CRO, A/B testing, and UX optimisation

What You’ll Bring

• Commercial mindset with strong revenue ownership mentality


• Data-driven decision-making skills


• Entrepreneurial attitude with strong problem-solving ability


• Passion for ecommerce innovation and digital growth


• Ability to thrive in a fast-moving international environment


• Strong stakeholder management and leadership skills

What’s in it for me? 

Career Development 

• Access bespoke development programmes that have been designed and developed by our in-house L&D team. 


• Develop your expertise through our upskilling programme that is delivered in partnership with an industry-leading training provider. 

Enhanced Leave 

• 25 days annual leave plus bank holidays. 


• Don’t want to work on your birthday? We don’t either! Enjoy your day off on us! 


• Enhanced maternity and paternity pay, depending on length of service. 


• Up to 10 days compassionate leave. 


• Buy back up to 3 days each year. 


• Unlock 2 days volunteer leave after 12 months 

Wellbeing Support 

• Access face-to-face and virtual appointments with our in-house GP. 


• Access our 24/7 Employee Assistance Programme (EAP), which is provided by Bupa. 


• State-of-the-art on-site gym. 


• Access to our on-site physio. 

Other Perks 

• Save up to 12% on the cost of personal tech through our salary sacrifice scheme. 


• Subsidised bus pass from Manchester City Centre to our ICON office. 


• Up to 50% staff discount on THG brands. 


• On-site staff shop. 


• Access to on-site barber. 


• Know someone who would be perfect for THG? Refer them and get up to £1,000 when they pass their probation. 


• Anniversary gifts when you hit 5 and 10 years of service. 


• We are an equal opportunities employer. 

We’re committed to creating a diverse and inclusive workplace that allows everyone to thrive, and strongly encourage all candidates from all backgrounds and identities to apply. 

Please email [email protected] if you require any additional support or need to make any adjustments to our recruitment process. You don’t need to disclose your disability or condition; you just need to let us know what support you need or changes you need to make. If you’re not sure, we can work with you to explore the available options. 

THG is proud to be a Disability Confident Committed employer. If you are invited to interview, please let us know if there are any reasonable adjustments we can make to the recruitment process that will enable you to perform to the best of your ability.

THG is committed to creating a diverse & inclusive environment and hence welcomes applications from all sections of the community.

Because of the high volumes of applications our opportunities attract, it sometimes takes us time to review and consider them all. We endeavour to respond to every application we receive within 14 days. If you haven't heard from us within that time frame or should you have any specific questions about this or other applications for positions at THG please contact one of our Talent team to discuss further.