Python / AI Developer Middle Above - Infrastructure

Top 3 Reasons To Join Us

Opportunities to work directly with experts

Have a fun and flexible working environment

Excellent health insurance with Liberty Insurance

The Job

The company is scaling up its intake and delivery of AI/Python application projects for clients. This role requires a Python/AI Developer with hands-on, real-world experience and strong ability to work independently — directly developing AI products/features, taking over and operating part of the infrastructure (Infra), and providing technical support to other team members when needed.

Key Responsibilities

Directly develop Python applications for AI/AI projects (chatbots, LLM integration, RAG, etc.).

Integrate APIs from AI platforms (OpenAI, Claude, Gemini, etc.) into client systems.

Independently design implementation-level architecture for assigned features/projects, only needing to align with the AI Technical Lead at a high level rather than requiring detailed day-to-day guidance.

Takeover, operate, and be able to improve the existing infrastructure (Infra): server configuration, deployment, basic CI/CD, system monitoring.

Ensure code quality and write clear technical documentation to reduce dependency on any single individual within the team.

Provide technical support and code review for other team members when needed (especially for new Python/AI projects handled by others).

Participate in direct technical discussions with clients when needed, including when the AI Technical Lead is unavailable.

Reports to AI Technical Lead

Your Skills and Experience

Requirements

At least 3–5 years of hands-on Python development experience in a real-world environment (production experience preferred, not only academic/training projects).

Has independently delivered at least 1–2 real-world AI/GenAI/LLM projects (chatbot, RAG, AI model integration, etc.) — an important requirement, as this role works independently with limited close supervision.

Able to independently design system architecture at a basic-to-intermediate level without needing step-by-step guidance.

Experience with Infra/DevOps: Linux servers, Docker, CI/CD, production deployment.

Highly self-driven, able to work independently, self-learn, and troubleshoot technical issues.

Good communication skills, able to discuss technical topics directly with clients when needed.

Good English proficiency for reading technical/requirement documentation and speaking

Nice-to-have

Prior experience as a Tech Lead or mentor for other developers.

Experience working on outsourcing projects for Japanese clients.

Experience with FastAPI/Django.

Relevant AI/Cloud certifications (AWS, GCP, Azure AI, etc.).

Japanese and English certifications (e.g., JLPT for Japanese, TOEIC/IELTS/TOEFL for English).

Why You'll Love Working Here

The CEO/representative holds a doctor degree in the AI field

We use our own AI-driven development product internally

We're advancing AI research through industry-academia collaboration with a university, and we're working together with the Vietnam team's research as well

Active study sessions (we've been running seminars frequently lately, so I can explain more about that)

Opportunity to communicate in Japanese/English with native Japanese speakers.

Remote working fully.

Social insurance, regular health check-ups, 13th month salary according to Vietnamese law.