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.
About this role
AI Shift, a CyberAgent subsidiary in Shibuya, builds enterprise AI-agent solutions and the VoiceAgent phone-answering agent, and it hires a Full Stack Engineer for its AI Worker Platform, a platform for building enterprise AI agents. The role is backend-centred and covers design, development and operation.
The engineer builds applications in Node.js and TypeScript and, with field deployment engineers, customer success and product managers, handles priorities, design, development, testing and release, moving into frontend and infrastructure as interest allows. Recent examples include running autonomous AI agents headlessly, tracing agents with Langfuse, extending embedded objects in Python execution nodes and giving LLMs a standard web-search tool. The team thinks through how a feature is built, run safely and delivered to users, and gets direct feedback because the main users are in-house.
Applicants need four or more years of development, two or more years on a public cloud such as GCP or AWS, two or more years with containers such as Docker, and development lead experience. Go or TypeScript, deep understanding of AI agents and LLMs, Twilio or cloud PBX knowledge, speaking or writing publicly, and chat-service development are preferred.
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