English summary for screening — check the original posting before applying.
Develop and improve features for AI SaaS web applications, integrating AI sales forecasting models and data pipelines. You will work across frontend, backend, data processing, and AWS infrastructure in a small, collaborative team.
Must-haves
- 3+ years of web application development experience
- Next.js (frontend/backend) development experience
- Python data processing experience
- AWS environment development and operation experience
- Infrastructure management experience with IaC (e.g., Terraform)
Nice-to-haves
- Requirements definition or specification refinement experience
- Experience utilizing Generative AI for high development productivity
- Machine learning model development and operation experience (especially time series forecasting)
- Data pipeline and ETL infrastructure design/building experience
- CI/CD pipeline construction experience (e.g., GitHub Actions)
- BtoB SaaS development and operation experience
- EC or apparel industry domain knowledge
- Startup environment development experience
Tech stack
Next.jsReactTypeScriptPythonLightGBMLSTMTimeMixerProphetAWSTerraformGitHub ActionsSlackNotionClaude CodeGitHub Copilot
Work style
Full remote available. Location: 2-42-10 Daizawa, Setagaya-ku, Tokyo. Standard working hours 10:00-19:00.
Other notes
Monthly salary: ¥550,000 - ¥1,000,000. Annual salary: ¥7,000,000 - ¥12,000,000. Overtime work expected (average 20 hours/month). All social insurances complete. No smoking on premises.