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# Full-Stack Developer (Remote) - Castilla León

- **Company:** Hired
- **Location:** Burgos, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Artificial Intelligence, Node.Js, TypeScript, ReactJS, Backend, Vue.js, AngularJS, Front End Software Development, NestJS
- **Published:** September 19, 2026
- **Apply:** https://www.buscojobs.com.es/full-stack-developer-remote-castilla-leon-en-burgos-ID-372159298

## About the Role

We are hiring for one of our clients, seeking a JavaScript / TypeScript Full-Stack Developer to work on a full-time basis., * Proficiency in JavaScript and TypeScript for full-stack development.

 * Experience with Node.js for backend development.
 * Familiarity with Nest.js as a progressive Node.js framework.
 * Knowledge of front-end frameworks such as React, Vue.js, or Angular.
 * Ability to write readable, reusable, and maintainable code.

## Description

Role:Full-Stack Developer (Remote)Location:Remote (Work from Anywhere)Role Overview:We are hiring for one of our clients, seeking a JavaScript / TypeScript Full-Stack Developer to work on a full-time basis.The role involves designing, developing, and maintaining efficient, high-quality code to train and optimize AI models.You will conduct evaluations to benchmark model performance and analyze results for continuous improvement.Key Responsibilities:* Design, develop, and maintain efficient, high-quality code to train and optimize AI models.* Conduct evaluations to benchmark model performance and analyze results for continuous improvement.* Evaluate and rank AI model responses to user queries across diverse domains, ensuring alignment with predefined criteria.* Develop comprehensive explanations and rationales for evaluations, showcasing excellent reasoning and technical expertise.* Lead efforts in supervised fine-tuning, including creating and maintaining high-quality, task-specific datasets.Required Skills & Qualifications:* Proficiency in JavaScript and TypeScript for full-stack development.* Experience with Node.js for backend development.* Familiarity with Nest.js as a progressive Node.js framework.* Knowledge of front-end frameworks such as React, Vue.js, or Angular.* Ability to write readable, reusable, and maintainable code.More About the Opportunity:This role offers a unique opportunity to work with a global leader in AI technology, contributing to the advancement and deployment of powerful AI systems.You will collaborate with cross-functional teams to improve model performance and contribute to product enhancements.Equal Opportunity Employer:We hire based on skills and expertise.All qualified candidates are welcome regardless of background, experience, or prior employment history.Applications are reviewed solely on demonstrated technical ability and qualifications.Apply Now!