Develop and operate mobile client SDKs for KARTE for App, supporting iOS, Android, Flutter, and React Native. Improve device compatibility, testing, CI/CD, and high-volume tracking.
About this role
The Platform Engineer will develop a data platform centered on first-party customer data collected through KARTE. The platform supports multiple products by collecting, analyzing, displaying, normalizing, and processing diverse user behavior data.
Responsibilities include developing a real-time analytics engine and designing and operating cloud infrastructure. The role also covers designing and implementing a tag manager service that distributes measurement scripts, building data analysis foundations that make behavior data easier to use across products, and implementing infrastructure that protects privacy and security. Additional work includes constructing and operating common application execution platforms and CI/CD foundations for individual products.
The technical challenges include creating a lightweight measurement script of several kilobytes that collects behavior data and displays distributed content within 0.x seconds. The role also involves building a backend foundation capable of real-time, low-latency analysis under traffic of approximately one million requests per second; a query execution foundation that enables interactive searches and visualizations across petabyte-scale behavior data in about one second; and an extensible data-processing pipeline that normalizes varied, petabyte-scale data for use across multiple products. With more than 30 microservices developed by distributed teams, the engineer will also design an architecture that considers the overall system and carry it through implementation to improve development and operations across teams.
The stated development environment includes GitHub, Docker, Kubernetes, GCP, AWS, BigQuery, Spanner, BigTable, MongoDB, Redis, Node.js, TypeScript, Java, Go, Vue.js, and React. The work includes systems handling large traffic and low latency, a tag manager for measurement and other KARTE product scripts, analytics infrastructure for more than 180 PB of monthly data, container infrastructure supporting product microservices, CI/CD workflow operations, and security improvements for the behavior data platform.
The position includes discretion in technology selection and work on performance and cost improvements affecting multiple products and business areas. The work location is the head office in Ginza, Chuo-ku, Tokyo. The posting describes a hybrid arrangement combining office and remote work, with the company able to request a certain number of office days depending on company and team circumstances. It states that business-side staff currently generally work from the office three days per week.
This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.
Similar jobs
Design and build iOS, Android, and Flutter SDKs, a native-app A/B testing platform, backend and infrastructure, and a React visual editor for a new SaaS product. Hybrid work in Tokyo.
Manage the operations of the information systems department, leading system improvements and proposals for company-wide efficiency.
Develop client-side systems for console game titles using an in-house engine, Unity, or Unreal Engine, including gameplay flow, player and enemy behavior, UI, and physics-based effects.
Supports quality assurance for amptalk’s core products by testing new features, retesting existing functionality after changes, and identifying defects before releases reach customers.
Lead architecture, design, development, and delivery for large-scale retail systems, guiding customers on cloud and modernization while optimizing business and technical architecture.