Freelance Physicist & Python Expert - AI Trainer

Mindrift; São Paulo; On-site; BRL 83,131 - 118,398; Part time

Job summary

A technology solutions company is looking for contributors for project-based AI evaluations in São Paulo. The role requires a degree in Physics, strong Python proficiency, and 3+ years of experience in professional physics. Contributors will design physics problems, evaluate AI solutions, and validate simulations. Payment rates reach up to $14/hour based on expertise. Flexible working hours are expected at around 10-20 hours weekly during active phases.

Qualifications

• 3+ years of professional physics experience.
• Stable internet connection.
• Experience in international or applied projects preferred.

Responsibilities

• Design rigorous physics problems reflecting professional practice.
• Evaluate AI solutions for correctness and constraints.
• Validate calculations or simulations using Python.

Skills

Physics expertise

Python proficiency

Strong written English

Education

Degree in Physics or related fields

Tools

NumPy

Pandas

SciPy

Job description

Overview

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

While each project involves unique tasks, contributors may:

• Design rigorous physics problems reflecting professional practice;
• Evaluate AI solutions for correctness, assumptions, and constraints;
• Validate calculations or simulations using Python (NumPy, Pandas, SciPy);
• Improve AI reasoning to align with industry-standard logic;
• Apply structured scoring criteria to multi-step problems

What We Look For

This opportunity is a good fit for physicists with experience in Python and is open to part-time, non-permanent projects. Ideally, contributors will have:

• Degree in Physics or related fields, e.g. Engineering Physics, Thermodynamics, Statistical Mechanics, Optics and Acoustics, etc.
• 3+ years of professional physics experience
• Strong written English (C1/C2)
• Strong Python proficiency for numerical validation
• Stable internet connection

Professional certifications (e.g., CPhys, EurPhys, MInstP) and experience in international or applied projects are an advantage.

How It Works

Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid

Project time expectations

For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.

Payment

• Paid contributions, with rates up to $14/hour*
• Fixed project rate or individual rates, depending on the project
• Some projects include incentive payments
• Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project