Mizuki Arai
Tokyo
Summary
Senior Digital Marketing & Communications Specialist with 5+ years of experience driving brand growth through strategic media, social, influencer, and D2C initiatives. Currently leading full-funnel digital marketing programs for global audio brands including JBL, Harman Kardon, and AKG at Harman International Japan. Experienced in managing large-scale campaigns, cross-channel media planning, and e-commerce optimization, with a strong focus on data-driven marketing and measurable business impact.
Overview
8
8
years of professional experience
Work History
Senior Marketing Communication Specialist
Harman International
Tokyo
09.2024 - Current
- +60% YoY EC traffic and +40% YoY online sales growth through D2C site optimization and digital media activation.
- Lead digital media strategy and activation with ¥150M annual budget ownership, driving full-funnel campaigns across product launches and seasonal initiatives; partner with agencies and support creative direction, OOH, and event planning.
- Own social and influencer strategy across Instagram, X, TikTok, and YouTube, expanding brand reach and engagement through always-on and campaign activations.
- Manage EC content governance with global development and local EC teams; initiated and led site refresh projects for four key brands as Content Quality Manager.
- Manage sponsorship activations (e.g., Billboard Live), coordinating external partners, artist teams, and media to maximize digital, PR and social amplification.
- Partner with global marketing analytics to measure local campaign effectiveness and report actionable insights to stakeholders.
Digital Marketing Specialist
SThree
Tokyo
06.2021 - 09.2024
- Managed marketing efforts for five GTM brands in the Japanese market and led employee branding initiatives for the parent company, SThree.
- Created and executed brand and content strategies aligned with business objectives.
- Implemented and optimized social media strategies across LinkedIn, Instagram, Facebook, and X (organic & paid), including the successful launch of a new Instagram account and performance analysis.
- Developed web content strategies tailored for technical SEO optimization and ensured localization for cultural relevance and resonance.
- Orchestrated successful email marketing campaigns.
- Planned and executed webinars and on-site events in collaboration with the sales team to boost brand visibility and customer engagement.
- Oversaw customer experience management initiatives.
- Supported rebranding, brand launches, and website upgrade projects, collaborating with global teams.
Content Quality Controller (Part-time project)
In Marketing We Trust
Remote
07.2023 - 09.2024
- Reviewed and evaluated AI-generated Japanese content for a major flight search engine client, ensuring linguistic accuracy, relevance, and cultural appropriateness.
- Identified improvement areas in AI-generated outputs through qualitative assessment and analytical tools.
- Provided structured feedback to support AI model refinement and improve overall content quality and user experience.
SEO Content Writing Intern
Kcabo inc.
Tokyo
12.2020 - 06.2021
- Created SEO-optimized content for lifestyle, beauty, and finance websites and conducted keyword and performance analysis using Google Analytics, Search Console, and Ahrefs.
Marketing Intern
BANG Media International
London
06.2020 - 07.2020
- Produced short-form digital content and conducted market research on Asian media markets while supporting outreach to potential partners in Japan and Korea.
Intern
DEOW Japanese study abroad agency
London
04.2018 - 09.2018
- Managed website updates using WordPress, supported social media management, and assisted with student orientations and client coordination.
Education
Bachelor of Arts (Honors) - Global Business Management
Coventry University
London, UK02-2021
Foundation Degree - Hospitality and Tourism Management
Greater Brighton Metropolitan College
Brighton, UK09-2019
Skills
- Digital media strategy
- Influencer & social media marketing
- D2C / E-commerce growth
- Marketing analytics & performance reporting
- Google analytics
- SEO
- Meta Ads Manager
- Agency & budget management
- CMS/EC platforms
- Salesforce
- Creative direction and copywriting
- Illustrator
Languages
- Japanese, Native
- English, Professional
Timeline
Senior Marketing Communication Specialist
Harman International
09.2024 - Current
Content Quality Controller (Part-time project)
In Marketing We Trust
07.2023 - 09.2024
Digital Marketing Specialist
SThree
06.2021 - 09.2024
SEO Content Writing Intern
Kcabo inc.
12.2020 - 06.2021
Marketing Intern
BANG Media International
06.2020 - 07.2020
Intern
DEOW Japanese study abroad agency
04.2018 - 09.2018
Bachelor of Arts (Honors) - Global Business Management
Coventry University
Foundation Degree - Hospitality and Tourism Management
Greater Brighton Metropolitan College