Qa jobs in Spain

About The Company

At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.

What We Do

The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.

About The Role

GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills.

Although every project is unique, you might typically:

• Analyze and understand existing code in Javascript and Typescript
• Migrate logic to idiomatic, safe Typescript while preserving functionality
• Adapt or port the test suite and ensure behavioral equivalence
• Document migration steps and technical decisions
• Can contribute to any project type including:
• Functional coding (building new features from requirements)
• Refactoring and maintainability improvements
• Repository-level/complex projects (multi-module, multi-repository codebases)
• Data/task pipelines and automation
• Frontend, backend, or full-stack development
  
  
  

How To Get Started

Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you'll help shape the future of AI while ensuring technology benefits everyone.

Requirements

• You have a Master's degree in Software Development, Computer Science, or other related fields.
• You have at least 3 years of professional experience with TypeScript
• You demonstrate solid understanding of systems programming (memory management, concurrency)
• Prompt engineering experience is a strong plus
• Your level of English is advanced (C1) or above
• Proficiency in TypeScript and modern JavaScript (ES6+), including experience in migration and refactoring of large JavaScript codebases to TypeScript.
• Experience with core TypeScript tooling (e.g., ESLint, Webpack, Jest/Cypress for testing).
• Familiarity with modern web application frameworks (e.g., React, Next.js, Node.js/NestJS).
• Ability to design, review, and optimize features where LLMs (e.g., ChatGPT, Claude, Copilot) are part of code creation, completion, or review workflows.
• Prompt engineering experience and/or validating AI-generated code outputs is a significant advantage.
• Participation in QA or review pipelines for LLM-generated software/data
• You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines
• Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge
  
  
  

Benefits

Why this freelance opportunity might be a great fit for you?

• Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments
• Work on advanced AI projects and gain valuable experience that enhances your portfolio
• Influence how future AI models understand and communicate in your field of expertise