Coding Specialist (Fluent in Japanese) - Freelance AI Trainer Project

Invisible Technologies Inc.; United States; Remote; USD 11,000 - 90,000; Full time

Job summary

Invisible Technologies is seeking a contractor who speaks fluent Japanese to test and shape AI model programming capabilities. You will engage with models on software engineering tasks, verify coding fluency, and document errors for reproducibility. A strong background in CS and real-world coding, plus technical writing in Japanese, is valued.

This is a remote, contract role with hourly pay. The position emphasizes clear, metacognitive communication and the ability to show work while evaluating

Qualifications

• Candidates must have strong coding expertise in algorithms and data structures.
• Experience across frontend and backend development and cloud infra.
• Proven ability to document failures and harden model reasoning.

Responsibilities

• Interact with language models to evaluate coding tasks in Japanese.
• Verify accuracy, naturalness, and correctness of code and language usage.
• Capture reproducible error traces and propose improvements to prompts and metrics.

Skills

Algorithms

Data structures

Software architecture

Frontend development

Backend development

Cloud infrastructure

Systems programming

Asynchronous programming

RESTful API integration

Memory management

Object-oriented design

Secure coding practices

Distributed systems debugging

Metacognitive communication

Education

Bachelor's / Master's / PhD in Computer Science

Job description

Are you a coding expert fluent in Japanese eager to shape the future of AI? Large‑scale language models are evolving from clever chatbots into powerful engines of scientific discovery. With high-quality training data, tomorrow's AI can democratize world‑class education, keep pace with cutting‑edge research, and streamline software development for engineers everywhere. That training data begins with you—we need your expertise to help power the next generation of AI.

We're looking for coding specialists who live and breathe algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming—and who can do so fluently in Japanese. You'll challenge advanced language models on topics like asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems-documenting every failure mode so we can harden model reasoning.

On a typical day, you will converse with the model on software engineering tasks and technical scenarios in Japanese, verify logical accuracy and coding fluency, assess naturalness and correctness of Japanese language usage, capture reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics.

A bachelor's, master's, or PhD in computer science, software engineering, or a closely related technical field is ideal; real-world coding experience, technical writing in Japanese, or open-source contributions signal fit. Clear, metacognitive communication-"showing your work"- is essential.

Ready to turn your coding and Japanese language expertise into the knowledge base for tomorrow's AI?

We offer a pay range of $8-to-$65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you'll supply a secure computer and high-speed internet; company-sponsored benefits such as health insurance and PTO do not apply.

Employment type: Contract
Workplace type: Remote
Seniority level: Mid-Senior Level