Backend Engineer / Architect (Member–Lead Level)

ExaWizards

Backend

Python

Next.js

About this role

This role sits on the team responsible for developing and operating RAG templates used on exaBase Studio, an AI development platform for building software and AI agents. The position covers technical vision, product-facing development roadmaps, and architecture for templates and agent applications intended to move AI projects from proof of concept into usable systems.

The work combines architectural leadership with hands-on implementation. Responsibilities include designing maintainable microservice architectures, investigating and improving RAG retrieval and security, researching and developing AI agents, and building template applications across backend, frontend, and infrastructure. The named stack includes Node.js, Python, Docker, Next.js, AWS, GitHub, AWS CodeCatalyst, GitHub Actions, CDK, and external LLMs.

Applicants must have experience designing software with microservice architectures and practicing system architecture, along with backend development using Node.js, Python, or similar technologies and frontend development experience. Business-level Japanese communication skills, approximately JLPT N1, are required.

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