★Full-Stack Engineer | Japan's Only Product

• Business Level Japanese Required (N2 Level)

★Hybrid Work & Flextime

★Start-up Company

★New Business

★In-house Products

◆ Annual Salary: 6 million ~ 15 million yen.

【About the company】

The company provides a service that allows anyone to easily create demo content by cloning and customizing software with no-code. The service communicates the true value of a product immediately, delivering its original value to customers without needing a production environment. The platform also enables per-content access analysis.

The company helps clients realize "customer communication through product demos" in a variety of scenarios, such as maximizing lead generation, standardizing sales demo skills, streamlining the order process, and creating templates for customer success onboarding.

In the future, the company plans to comprehensively cover all processes related to software sales and utilization in the AI era. By digitizing this process, they aim to create a world where "the concepts of selling and using software no longer exist, and everyone can simply enjoy the value of technology."

【 Job Description】

【The Company's Vision】

The company is tackling the fundamental challenge of software: "the value that should be communicated is not." No matter how excellent a product is, its value will be lost if its purpose and relevance are not properly conveyed. The evolution of AI will not automatically solve this problem. In fact, as general-purpose technologies like LLMs become more widespread, the relationship between products and users will become even more complex, making "how something is communicated" increasingly important. In this era, the company's mission is to design experiences that are not just "communicated" but are truly "understood."

The company's approach is to design experiences that start with a user's "Intent." They have a no-code product that automatically generates demos that are truly understood. Instead of simple explanations or screen recordings, it creates a story by working backward from what the user wants to do—their Intent. The company calls this the "Intent Experience," and it applies to the commercialization and utilization support of SaaS and other products.

This approach holds significant value in the LLM era. The product's role is to solve crucial challenges such as how to build a context that gives meaning to a generated answer, how to integrate AI responses and the UI into a consistent experience, and how to automate intent-based guides and navigation. The product's purpose is precisely to design the space "between" AI and the UI.

【What the Company is Working On】

The company designs experiences based on a user's "Intent," reinforces them with LLMs, and provides them as a product to help users:

・Intuitively determine if a product is what they need.

・Ensure Sales and Customer Success teams can reliably communicate the "core value" of a product.

・Achieve their goals without getting lost.

This approach is a solution to challenges common in the SaaS market, not just in Japan but worldwide.

【Compete in a Global, Massive Market】

Based on its domestic track record, the company is now seriously pursuing global expansion. They are conceptualizing a "value delivery platform" that combines the universal concept of Intent with the structural challenges of SaaS commercialization to create a service that is globally applicable.

The company aims to build a product portfolio with an ARR (Annual Recurring Revenue) of ¥50 billion by 2031. To achieve this, multiple projects are already underway, including:

・Rapid verification in virtual environments and market adaptation.

・The development of guides, analytics, and an "auto mode."

・Building a navigation and Q&A platform using LLMs.

【Your Role】

・Taking an active role in hypothesis testing and feature design in addition to coding as part of a small, startup team.

・Designing and implementing future products through discussions with the Product Manager and other team members.

・Building the foundation of the engineering organization to accelerate and stabilize business growth.

【Responsibilities】

・Implementing server-side, frontend, and Chrome extension features.

・Defining new feature requirements and specifications, as well as proposing and researching new hypotheses.

・Developing internal tools to boost the productivity of other teams.

・Building development and testing environments, and improving the efficiency of CI and testing.

・Shaping the future of the product by collaborating with the Product Manager and other team members.

【Development Environment】

For this new product, the company will decide on the tech stack in the future. However, for their existing flagship business, the development environment includes:

Architecture

・Customer-facing Web App: Single-Page Application (SPA)

・Admin-facing Web App: Multi-Page Application (MPA)

・Chrome Extension

Technical Stack

・Backend: Kotlin (Ktor), PostgreSQL, Redis

・Frontend: TypeScript, React, Chakra UI

・Chrome Extension: TypeScript, React

・Infrastructure: Google Cloud (primarily Cloud Run)

・Other: The company is in the process of shifting to a development framework that leverages generative AI tools like Claude.

■Development Team's Communication Cycle

・Weekly Planning: The team shares and discusses the development plan for the upcoming week.

・Weekly Product Meeting: The business and engineering teams come together to discuss customer feedback and upcoming release plans.

・Weekly Development Meeting: Members bring up topics related to technical improvements and team operations for discussion.

・Weekly Design Meeting: This is where the team discusses the necessary architecture and design for new features.

【 Requirements】

【Required】

Practical experience in web application development (Typescript)

Experience spanning requirements definition through specification development to implementation

SPA development experience

Development experience using web application frameworks

Team development experience utilizing Git

Development experience leveraging generative AI

【Preferred】

Extensive experience in infrastructure domains

Experience developing Chrome extensions

Deep knowledge of HTML specifications

Experience developing with React

Experience developing with server-side Kotlin

【Ideal Applicants】

Communicate effectively at the right time

Communicate appropriately whether via text or in person

Consciously create documentation that is easy for others to understand

Adapt flexibly to change and enjoy discussions

【Working Time 】

Flextime System

【Holidays】

Saturday/Sunday/National Holiday

Annual Paid Leave

New Year Holiday

【 Welfare 】

Full Social Insurance

Commuting Allowance

Telecommuting System