Freelance AI Trainer & Material Scientist with Python Expertise

toloka-aiRemote — València, Valencian Community, Spain

Remote Contract $29/hr - $29/hr

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Experience Level

Experience

Qualifications

Ideal candidates will possess a degree in Material Science or a related field, along with strong proficiency in Python for numerical validation. Experience with MATLAB, R, C, SQL, Numpy, Pandas, or SciPy will be considered equivalent. A minimum of 2 years of relevant experience (applied, research, or teaching) is required. Candidates should demonstrate a solid understanding of practical engineering constraints and possess excellent written English skills (C1+ level).

About the job

Please submit your CV in English and include your English proficiency level.

toloka-ai, in partnership with Mindrift, connects material science experts to project-based AI work for major technology companies. These freelance roles involve testing, evaluating, and improving AI systems. All work is project-based and does not constitute permanent employment.

Key Responsibilities

Design original materials engineering problems that mirror real-world engineering workflows
Create challenges that require Python programming for calculations or simulations
Develop computationally intensive tasks using numerical methods or iterative approaches
Formulate problems centered on system design, optimization, and analysis
Incorporate real research questions or practical engineering scenarios into problem sets
Validate solutions with Python and recognized engineering libraries
Document problem statements clearly and provide verified solutions

Requirements

Degree in Material Science or a closely related field
Strong Python skills for numerical validation (experience with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or similar libraries is a plus)
Minimum 2 years of professional experience, ideally in applied research or teaching
Solid grasp of engineering constraints and practical approximations
Excellent written English (C1 level or above)

How Projects Work

Submit an application
Meet the required qualifications
Join a project
Complete assigned tasks
Receive compensation

Time Commitment

During active project phases, tasks typically require 10 to 20 hours per week. Workload may fluctuate based on project needs.

Compensation

Contributors can earn up to $29 per hour, depending on project complexity, expertise, and individual pace. Rates may vary between projects on the platform.

Location: Remote , València, Valencian Community, Spain

About toloka-ai

At Mindrift, we bridge the gap between specialists and project-based AI opportunities within leading tech companies. Our focus lies in enhancing AI systems through rigorous testing and evaluation, ensuring that our contributors are engaged in meaningful and impactful work.

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