Source description
About the role
Role: Full Stack Engineer(Backend Heavy) (Go + React) Function: Software Engineering / Full Stack Development Location: Tokyo, Japan Type: Full-time Industry: Marketing Research, Data & Consumer Insights, Technology About Company The company is a global marketing research and data insights firm with over 25 years of experience. It operates proprietary consumer research panels of 1.3 million in Japan and 36 million globally, plus 130 million+ panelists worldwide. It combines survey, digital behavioral, and daily purchase data to deliver comprehensive marketing intelligence. The company serves approximately 2,500 domestic and 1,500 overseas clients across the Asia-Pacific region. Backed by ~$848 million in funding, it is currently in a dynamic merger stage. Its culture is built on deep thinking, swift execution, transparency, and shared ownership. Position Overview As a Full Stack Engineer, you will be a core contributor to building and scaling the data platforms and internal tools that power the company's research and insights products. The role is backend-heavy, with Go at the center of service development, complemented by React-based frontend work to deliver end-to-end product features. You will work closely with product, data, and research teams to translate complex data workflows into reliable, performant systems. Role & Responsibilities Design, build, and maintain backend services and APIs in Go, handling high-throughput data ingestion and processing pipelinesDevelop and maintain responsive, component-driven frontend interfaces using React JSCollaborate with product and data teams to define technical requirements and translate them into scalable system designsOptimize backend services for performance, reliability, and maintainability at scaleWrite unit, integration, and end-to-end tests to ensure code quality and system stabilityParticipate in code reviews, architectural discussions, and contribute to engineering best practicesDebug and resolve production issues across the full stack, from database queries to UI rendering Must Have Criteria 57 years of full stack engineering experience with a backend-heavy focusHands-on production experience building backend services in Go2+ years of hands-on experience with React JS for building production-grade frontend interfacesDemonstrated TypeScript experienceDemonstrated experience designing and maintaining scalable, distributed backend systems Nice to Have Experience working with large-scale data pipelines or analytics platformsFamiliarity with the market research, consumer insights, or adtech domainExposure to containerization and orchestration tools (e.g., Docker, Kubernetes)Experience at a data-driven product company or SaaS environmentProficiency in Japanese (business level) given the Tokyo-based, Japan-market context What We Offer Opportunity to build data products used by 4,000+ global brands across the Asia-Pacific regionWork at the center of a high-impact merger, shaping engineering culture and platform architectureCollaborative, agile team culture with strong ownership and minimal bureaucracyExposure to unique, large-scale consumer data assets 130M+ global research panelists Role: Full Stack Engineer(Backend Heavy) (Go + React) Function: Software Engineering / Full Stack Development Location: Tokyo, Japan Type: Full-time Industry: Marketing Research, Data & Consumer Insights, Technology About Company The company is a global marketing research and data insights firm with over 25 years of experience. It operates proprietary consumer research panels of 1.3 million in Japan and 36 million globally, plus 130 million+ panelists worldwide. It combines survey, digital behavioral, and daily purchase data to deliver comprehensive marketing intelligence. The company serves approximately 2,500 domestic and 1,500 overseas clients across the Asia-Pacific region. Backed by ~$848 million in funding, it is currently in a dynamic merger stage. Its culture is built on deep thinking, swift execution, transparency, and shared ownership. Position Overview As a Full Stack Engineer, you will be a core contributor to building and scaling the data platforms and internal tools that power the company's research and insights products. The role is backend-heavy, with Go at the center of service development, complemented by React-based frontend work to deliver end-to-end product features. You will work closely with product, data, and research teams to translate complex data workflows into reliable, performant systems. Role & Responsibilities Design, build, and maintain backend services and APIs in Go, handling high-throughput data ingestion and processing pipelinesDevelop and maintain responsive, component-driven frontend interfaces using React JSCollaborate with product and data teams to define technical requirements and translate them into scalable system designsOptimize backend services for performance, reliability, and maintai