Mindrift

PhysicsExpertwithPythonExpertise-FreelanceAITrainer

South Africa PART TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Entry candidates.

The Brief

“Physics Expert with Python Expertise - Freelance AI Trainer at Mindrift. Skills: Physics expertise, Python programming, Specialized physics package usage. Design computational physics problems to challenge a frontier AI model. Ensure problems have answers verifiable by code and require specialized tools”

What You'll Achieve.

Design tasks that challenge AI models; Achieve a specific AI agent success rate (10-30%); Ensure high task quality through review and feedback

Industry & Context.

Problems you'll solve

Designing challenging physics problems; Tuning problem difficulty; Analyzing simulation issues; Understanding how AI agents cut corners

Eligibility Requirements

Project-based, not permanent employment, Work within a sealed Linux container, Willingness to independently learn tools if not already fluent

What They're Looking For.

Must Have

Degree in Physics (Theoretical, Experimental, or Computational) or related, 2+ years of research, applied, or teaching, Python proficiency for writing reference, Ability to design problems that genuinely require a specialized simulation, written English (C1+)

Nice to Have

Fluency with — or willingness to independently learn — at least one scriptable physics package: FEniCS / DOLFINx, OpenFOAM, Meep, MPB, openEMS, Geant4, PYTHIA8, ROOT / PyROOT, WarpX, REBOUND, MESA, CAMB, CLASS

What You'll Do.

Design computational physics problems to challenge a frontier AI model

Ensure problems have answers verifiable by code and require specialized tools

Write Python reference solutions

Supply input files and domain/initial condition definitions

Decide numerical answers and appropriate tolerances

Test problems against AI models in batches

Tune problem difficulty for a specific success rate (10-30%)

Rewrite field configurations

and solver parameters

Analyze AI agent behavior and simulation issues

How You'll Work.

Team & Collaboration

Tasks reviewed by senior reviewers in the subfield; Provide feedback to ensure task quality is high

Communication Scope

English proficiency (C1+)

Full Job Description

_**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 design computational physics problems to challenge a frontier AI model. The problem must have an answer verifiable by code, and the problem has to require a specialized tool like FEniCS, OpenFOAM, Meep, REBOUND, CAMB, or others. Generic numerical libraries on their own won't cut it. Each problem runs inside a sealed Linux container with the tool pre-installed and a programmatic judge that grades the model's answer. As an expert author, you: • Pick an anchor tool and design a problem that hinges on its physics models, integrators, Monte Carlo kernels, or PDE discretisations. • Write a Python reference solution, supply input files and domain or initial condition definitions where needed. • Decide the numerical answer and how close the model needs to get — with a domain-appropriate tolerance — to count as right. • Test the problem against the model in batches of parallel attempts, tuning the problem difficulty until the agent only succeeds in a small number of attempts. • Once you're happy with the task, and it scores within range, the task goes to a senior reviewer in your subfield. They will provide feedback to ensure task quality is high. Calibration requires patience. You're tuning the problem against batches of parallel runs of the agent, aiming for a pass rate in the 10–30% band. Reaching that means rewriting field configurations, tightening initial conditions and solver parameters, and watching how the agents act. You'll learn how these agents cut corners, where a simulation stalls, where an integrator converges. This time compounds in two directions. You come out of each task with deeper command of the anchor tool itself, and a

Free ATS check

Applying for this Physics Expert with Python Expertise - Freelance AI Trainer role?

Most applicants get filtered before a human reads their resume. See if yours makes the cut.

ANONYMOUS · UNFILTERED

What do employees actually say about Mindrift?

Real rants from real employees. Read before you apply.

Read Company Rants →