Build AI Worker VoiceAgent’s web frontend, designing visual interfaces and admin features, selecting architecture, and delivering releases with TypeScript and React in a hybrid office/home role.
Backend Engineer for Sales Support Platform (AI Operation Technology)
About this role
CyberAgent's AI Business division is hiring a Backend Engineer for its Sales Support Platform, an in-house system for the internet advertising business built with CRM and SFA concepts. It brings real-time views of ad results and delivery data together with deal management, and the team (AI Operation Technology) automates and streamlines ad operations with technology and generative AI.
The engineer works mainly on the Python (FastAPI) backend, covering requirements, design, implementation and operational improvement. The engineer also uses Snowflake and AWS to prepare data integration and system foundations for a large ad business, and builds new features and improves existing ones. The stack includes Next.js, Snowflake, AWS, GitHub Actions and Datadog, and a new development starts about every three months.
Applicants need five or more years of web application and API development, at least two years of practical Python, team development with GitHub, application development with Docker and a public cloud, and experience writing and running unit tests. Preferred are knowledge of internet advertising, Snowflake experience, Next.js frontend work, tech-lead or team-leader experience and use of AI coding agents such as Claude Code or Codex in daily work.
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