CraftOS
is developing advanced AI agents to help startups run their operations after they have built their product. It has never been easier to launch an MVP. But once the product is ready to scale, many founders (solo entrepreneurs and small teams) get bogged down by the day-to-day grind of running the company.
We want to provide them with AI agents that help founders operate their startups, making intelligent decisions and automating the process of building and running a business.
We are looking for passionate
AI engineers
who believe in this vision and want to help us invent the next generation of autonomous AI agents. Here are your
responsibilities
:
- Design and develop our agent framework (multi-agent orchestration and tool integration).
- Deploy production services, implement CI/CD, manage infra on GCP (and other cloud)
- Introduce original AI agent technologies to the market.
- Work closely with an international team in a fast-moving startup environment.
Required Qualifications:
- Bachelor degree in Computer Science or related technical field, or equivalent practical experience.
- 3+ years of experience in Software Engineering.
- 2+ years of experience in Machine Learning, Generative AI, with strong skills in PyTorch for training and inference.
- Strong development experience with
Typescript, Python
. - Experience with using AI agents and MCP.
- Hands-on experience with
RAG pipelines
,
Prompt Engineering
, and
agentic framework
(
LangGraph, GenAI)
. - Strong English communication (spoken and written).
Preferred Qualifications:
- Master's degree in Computer Science or related technical field, or equivalent practical experience.
- Research experience in Machine Learning or related field.
- Experience in
fine-tuning LLMs
(e.g., LoRA, QLoRA) and building training pipelines. - Experience deploying ML systems on
GCP
or other major cloud platforms. - Japanese language proficiency is a plus.
Benefits:
- Early employee
equity - salary.
- Flexible work (hybrid in Fukuoka or remote).
- Japanese social insurance and commuter benefits if on-site.
Remember: this is not just an engineering role, you are invited to lead, influence, and co-create the future of the company.
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