Frontend Developer

🚀 Hiring: Frontend Engineer | Tokyo, Japan | Hybrid Work

Starting Salary Range: 5.000.000 ~ 9.000.000 JPY

Japanese level required: Intermediate

What if your frontend wasn't just an interface, but the core of the product itself?

We're looking for an experienced Frontend Engineer to build intuitive, data-intensive interfaces that help corporate R&D teams transform complex experimental results into structured, analyzable data.

At Alchemista Labs, AI handles the initial data extraction, while your UI empowers researchers to review, correct, and combine data seamlessly. Your work will directly shape how users interact with complex scientific workflows.

💻 What You'll Build

• Spreadsheet-like editable grids for efficient data manipulation
• Drag-and-drop interfaces for dataset composition and restructuring
• Complex workflows that feel intuitive, even for advanced users
• Modern frontend experiences for AI-powered R&D tools

🌟 Why Consider This Opportunity?

• Real ownership: Join a team with high autonomy and direct influence on product direction.
• Cutting-edge technology: Explore AI and secure computation technologies.
• Meaningful engineering challenges: Build sophisticated, data-heavy UIs beyond standard CRUD applications.
• Modern development practices: Work with strict TypeScript, typed API clients, and robust end-to-end testing.

✅ What We're Looking For

• 5+ years of software development experience
• Hands-on experience with React and TypeScript
• Experience integrating RESTful APIs
• Experience building UIs with component libraries or design systems
• Business-level English
• A strong interest in AI and secure computing
• Currently living in Japan, or previously lived in Japan and already decided to return

Bonus points if you have:

• Experience developing SaaS products on AWS
• Experience taking products from zero to one
• Experience building data-heavy interfaces, editable tables, drag-and-drop features, or complex forms
• Business-level Japanese

If you're a frontend engineer who enjoys solving complex UI challenges and wants to work at the intersection of AI, data, and secure computing, this could be your next opportunity.

📩 Interested? Send me a message or apply below!