Coding Specialist (Fluent in Spanish - Spain) - Freelance AI Trainer Project

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

Job summary

Invisible Technologies is seeking a Coding Specialist fluent in Spanish (Spain) to shape the future of AI by testing and refining language models. You will work remotely on advanced coding challenges, covering async programming, RESTful APIs, memory management, and secure coding practices.

Ideal candidates hold a bachelor’s, master’s, or PhD in CS or SE, with real-world coding and Spanish technical writing experience. You’ll document failures and contribute to model evaluation at scale.

Qualifications

• Bachelor’s, master’s, or PhD in computer science, software engineering, or a closely related technical field is ideal.
• Real-world coding experience and technical writing in Spanish are valuable.
• Open-source contributions signal fit; show your work clearly.

Responsibilities

• Converse with the model on software engineering tasks and technical scenarios in Spanish (Spain).
• Verify logical accuracy and coding fluency, assess naturalness and correctness of Spanish usage.
• Capture reproducible error traces and document failures for model improvement.
• Suggest improvements to prompt engineering and evaluation metrics.

Skills

Algorithms

Data structures

Software architecture

Frontend development

Backend development

Cloud infrastructure

Systems programming

RESTful API

Asynchronous programming

Memory management

Secure coding

Distributed systems debugging

Spanish fluency

Education

Bachelor's degree in computer science or related field

Job description

Are you a coding expert fluent in Spanish (Spain) 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 Spanish (Spain). 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 Spanish (Spain), verify logical accuracy and coding fluency, assess naturalness and correctness of Spanish 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 Spanish, or open‑source contributions signal fit. Clear, metacognitive communication—“showing your work”—is essential.
Ready to turn your coding and Spanish language expertise into the knowledge base for tomorrow’s AI? Apply today and start teaching the model that will teach the world.

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.

Job title: Coding Specialist (Fluent in Spanish - Spain) - AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid‑Senior Level