AI-driven Development Engineer (Full-Stack Engineer)

Applications: candidates must already be in Japan. Visa sponsorship: not available. Japanese: Business level. English: Not required. Japan Dev tags: Engineering, Web / Full-stack, Flutter, AI, Java, Python, React, Typescript, Docker, Vue, IoT, Spring.

Jobdiscription

• You will lead the end-to-end process—from ideation to development—of innovative services and products that leverage cutting-edge technologies such as AI, MaaS, FinTech, IoT, and VR.

• As an exceptional AI talent, you will not only maximize the value of AI-driven development, but also demonstrate an order of magnitude higher productivity than traditional engineers—10 times more efficient, revolutionary, and future-ready.

Details

• Streamlining a wide range of development tasks—including requirements definition, design, implementation, and testing—by leveraging AI assistance and AI agents.

• Evaluating and promoting the adoption of AI-driven development tools, such as IDEs like Cursor and Windsurf, and agent-based platforms like Bolt.new and Devin.

• Collaborating with internal project managers, directors, and designers to drive business success from a technical perspective.

• As a tech lead, define the technical direction of projects and guide the development team.

• As a full-stack engineer, lead development teams based primarily in Japan and Vietnam, driving projects to successful delivery.

• Demonstrate leadership beyond your area of expertise to drive project success.

• Responsible not only for design and development, but also for building CI/CD pipelines, formulating and executing deployment strategies, and driving stable operations and continuous improvement of the service.

Development environment

• Languages: Python / TypeScript / Java / Golang, etc.

• Cloud Platforms: AWS / Azure (including OpenAI) / GCP

• Development Support Tools: Cursor / Windsurf / GitHub Copilot, etc.

• Others: React / Vue / Flutter / Terraform / Docker / GitHub Actions

• Generative AI Models: GPT / Claude / Gemini, etc.

• Cloud Generative AI Platforms: AWS Bedrock / Azure OpenAI Service

• AI-Related Technology Libraries: ADK, LangChain, etc.

Required Qualifications

• Minimum 3 years of practical experience as a technical leader in web system development projects

• Experience with cloud development using AWS, Azure, or GCP

Preferred Qualifications

• Basic knowledge of machine learning and deep learning, with experience using related Python libraries

• Experience developing applications or agents using LLMs (e.g., LangChain)

• Experience customizing LLMs themselves

• Experience using AWS Bedrock or Azure OpenAI Service

• Practical knowledge of design and development processes such as Domain-Driven Design

• Leadership experience in upstream processes such as requirements definition and basic design

• Backend development experience using frameworks like Django or Spring

• Experience with environment setup using Docker and Terraform

• Experience with test automation and test-driven development

• Experience with agile development methodologies such as Scrum and XP

Desired Attributes

• Proactive learner who actively acquires and applies new technologies like AI

• Someone who objectively analyzes the advantages and disadvantages of new technologies on a regular basis

• Business-minded individual who can contribute to company-wide development efficiency and quality improvement

• Team player who values collaboration and works well with colleagues to advance development efforts