Full Stack AI Engineer - Remote

Overview

As a Full Stack AI Engineer at BJAK, you will bridge machine learning and software engineering to deliver real AI-powered features into users’ hands, working remotely from anywhere in Japan.

In Short

• Build and deploy full-stack applications that incorporate ML models.
• Work with data scientists and ML engineers to integrate models into scalable backend systems.
• Develop APIs, backend services, and real-time data pipelines for intelligent features.
• Design clean, performant, and intuitive UIs that surface AI insights to users.
• Own the full development lifecycle from architecture to monitoring.
• Collaborate with cross-functional teams to deliver polished, end-to-end solutions.
• Continuously improve the performance, usability, and reliability of applications.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• 2 - 4 years of experience in full stack development (frontend + backend).
• Strong programming skills in Python and JavaScript (Node.js, React, or similar).
• Experience integrating ML models into production systems.
• Familiarity with REST APIs, cloud deployment, and scalable architecture.
• Comfortable working with SQL/NoSQL databases and distributed systems.
• Strong grasp of software design patterns, testing, and debugging.
• Must be based in Japan and open to remote collaboration with international teams.

Benefits

• Competitive salary and performance-based bonuses.
• Remote-first setup with flexibility to work from anywhere in Japan.
• High-impact, high-ownership role in a product-led AI company.
• Flat structure where your ideas are valued and your code is seen.
• Fast-track growth with real visibility across engineering, data, and product.
• Regional exposure across Southeast Asia and the chance to shape products at scale.