Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What This Opportunity Involves You'll create challenging coding test cases that push AI coding systems to their limits: * Review and refine realistic coding tasks based on provided production codebases with realistic scope, requirements and information sources * Write comprehensive functional tests that validate vigente end-to-end behavior and edge-cases, not just superficial checks * Craft "fair but hard" challenges where the AI has all the context it needs, but has to work for it (information scattered across files and external sources, complex reasoning required) * Analyze AI failures to understand what the model struggles with vs.



what it masters * Iterate based on feedback from expert QA reviewers who score your work on 7 quality criteria What We Look For This opportunity is a good fit for experienced developers, software engineers, and/or test automation specialists open to part-time, non-permanent projects. Ideally, contributors will have: * Degree in Computer Science, Software Engineering or related fields * 5+ years in software development, primarily Python (pytest, async/await, subprocess, file operations) * Background in Full-Stack development, with an equal focus on building React-based interfaces and robust Back-end systems * Experience writing tests (functional, integration - not just running them) * Docker containers (running evaluations locally in containers) * CI/CD understanding (GitHub Actions as a user: triggers, labels, reading results) * English proficiency - B2 How It Works Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid Effort estimate Tasks for this project are estimated to take 20 hours to complete, depending on complexity. This

📌 Senior Software Engineer in Test (Cataluña)
🏢 Mindrift
📍 Cataluña