AI-driven Development Engineer (Full-Stack Engineer)
Monstarlab · Tokyo ·
- Work mode
- Remote
- Seniority
- Lead
- Category
- Fullstack
- Experience
- 3+ years
Monstarlab · Tokyo ·
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.
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