Bilingual Japanese Programmatic Support Trader

This Technical Solutions Engineer role at Appier in Tokyo focuses on ensuring optimal adoption of Appier's AI-powered ad solutions for Japanese-speaking clients. The engineer will guide clients through onboarding, troubleshoot technical issues, develop internal tools and scripts, and analyze data to provide insights. Requires native Japanese and professional English, SQL proficiency, and experience with mobile measurement partners like AppsFlyer or Adjust.

This role owns and grows a portfolio of mobile programmatic campaigns (UA/RT) across verticals like gaming, fintech, betting, and CTV, delivering CPA/ROAS targets while scaling FCT and protecting contribution margin. The trader uses deep analytical skills, SQL (must-have), Python/pandas (desirable), and LLM-accelerated workflows to optimize campaigns, build testing roadmaps, and shape trading playbooks. Key responsibilities include end-to-end campaign delivery, audience targeting, supply-side optimization, mobile attribution understanding, and cross-functional collaboration with CSM, Sales, Product, and Data teams.

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