We're seeking a skilled Full Stack Engineer to join a growing team focused on building AI-powered SaaS products. This is a hands-on engineering role ideal for someone passionate about creating scalable systems and working across the full development lifecycle—from backend to frontend.
Responsibilities:

• Design, develop, and maintain web-based SaaS applications
• Build and scale backend services and APIs
• Develop responsive frontend interfaces using modern frameworks
• Collaborate closely with product, design, and AI teams
• Write clean, testable, and maintainable code

Tech Stack:

• Backend: TypeScript, Node.js, Python
• Frontend: React, TypeScript, Next.js
• Infrastructure: GCP, Firebase, Docker

Requirements:

• 3+ years of experience in full stack web development
• Proficiency in both backend and frontend technologies
• Experience with cloud infrastructure and CI/CD
• Strong communication and collaboration skills
• Business-level English (Japanese is a plus but not required)