Mariya Koseki

Experience

• 

  Jupiter Telecommunications Co., Ltd.

  Apr 2011 - Jul 2012

  Customer Service Representative

  -Technical support for VOD, Internet and electronic services.-Troubleshooting for end users.

• 

  Bruce Clay, Inc.

  Aug 2012 - Mar 2016

  Senior Account Manager

  -Served as Sr.digital marketing consultant for domestic and international clients.-Optimized PPC, Display, DSP and ad network campaigns including Google Adwords and Yahoo Promotions in industries such as e-commerce, retail and entertainment.-AB test on Display ads, Landing Page and campaigns.-Reporting ad performance using Google Analytics and other data tools. -SEO consulting working closely with designers and web architects.-Won the MVP employee award for contributions to revenue growth.-Mentoring new hires to onboard as an account manager. Show less

• 

  C.C. Consulting KK

  Apr 2016 - Sept 2017

  Digital Product Marketing Specialist

  -Digital product marketing specialist for HR/Hiring Tech Platform for jobseekers and employers.-Analyzed website performance using Google Analytics and an internal tool.-Planned and activated paid media campaigns to achieve marketing KPI; including paid search(Google, Yahoo), paid social(LinkedIn), Display(Criteo, other Display Dynamic Ads) and email campaigns using HTML.-Collaborated cross-functionally with engineering, design, sales teams and senior directors.

• 

  Twitter

  Sept 2017 - Jan 2023

  -Twitter’s advertising product specialist for web and app promotions.-Go-to-market strategy for accelerating adoption rate of ad products (DeepLink, DynamicProduct Ads, ConversionAPI, and other ads measurement features).-Industry/vertical coverage includes Retail, Platform, CPG, E-commerce, Media and Entertainment and Agency.-Cross-functionally partnering with global stakeholders including the sales, research, engineering, legal and marketing teams.-Giving customer feedback and insights with quantitative and qualitative results to develop solutions. Show less -Managing top international eCommerce, Platform and Entertainment (Streaming, VOD, and Gaming) clients.- Use social listening tools (Brandwatch and CrimsonHexagon) to analyze audience segments and create insights-Report revenue growth using Tableau and Salesforce.-Manage API campaigns for clients. -Report branding campaigns with Nielsen Brand Lift Survey.-Responsible for revenue growth of $3M/quarterly.-Quantitative-Report digital marketing campaign results with Excel, Powerpoint and Keynote. Show less

  • Sr. Product Specialist | Revenue Product Specialist

    Jan 2022 - Jan 2023

  • Client Account Manager

    Sept 2017 - Jul 2022
• 

  Playwire

  Aug 2024 - now

  Product Manager

  - Product Manager for the launch of an advertising product in the retail domain.- Conduct market research and report to the parent (FreakOutHoldings) and group companies.