AI tools, scored for your job
Get paid to train AI
Hiring now · posted today Tech Contract · Remote

Junior Machine Learning Engineer

$60–$120/hr

Published pay. The final rate depends on your test, experience and country.

Remote · Worldwide 100 openings Language: English Posted 12 Nov 2026

Junior Machine Learning Engineer is remote AI-training work for data scientists, paying $60–$120/hr, open to applicants worldwide. Posted 12 Nov 2026, still open on 13 Nov 2026. Zekai lists it for free; the application goes to the employer's platform.

About this role

Preparing for this role? See the best AI tools for data scientists, practise with ready-made prompts for data scientists, read The 12 Best AI Tools for Data Scientists in 2026 (Tested) and take the free 30-day AI challenge.

Junior Machine Learning Engineer

Pay: $60–$120/hour

Location: Global, fully remote

Job Type: Contractor (~15 hours per week)

Schedule: Flexible—you choose the hours and days you work, including weekends if desired

We are looking for highly skilled Machine Learning Experts to contribute to an AI training project involving model development, training and inference systems, numerical computing, performance optimization, and Python.

The work involves creating, solving, reviewing, and validating challenging machine-learning engineering tasks. A representative task may require implementing or modifying a model, constructing a reproducible training or inference workflow, optimizing memory or throughput, debugging numerical or system-level failures, and verifying that the resulting implementation satisfies objective correctness and performance requirements.

This is a very coding heavy role. Candidates but have experience using coding agents with python in their workflow.

What You’ll Work On

  • Develop and validate machine-learning models, training pipelines, inference systems, and supporting infrastructure.
  • Implement model components, data pipelines, evaluation systems, and numerical methods.
  • Build reproducible programmatic workflows using Python and command-line tools.

Required Qualifications

  • A BS in Computer Science, Machine Learning, Artificial Intelligence, Applied Mathematics, Statistics, Engineering, or a closely related quantitative discipline.
  • Strong professional or research experience in machine learning.
  • Practical proficiency with Python and coding agents.

Equivalent tools may also be considered when the candidate demonstrates directly relevant depth.

Experience at a well-established technology company, AI laboratory, research organization, or other recognized engineering environment is strongly preferred. Exceptional open-source or academic experience may also qualify.

Process

  • Apply to the role and complete the screening questions.
  • Complete an AI interview of approximately 30 minutes.
  • Complete the hiring manager review.

Compensation Structure

Compensation is output-based. Experts are paid per task that meets the project specifications. The time required to complete each task may vary depending on the expert’s experience and workflow.

Minimum submission requirements apply.

Start Timeline & Availability

  • We typically fill roles within 48 hours and are looking for experts who are ready to begin immediately. If selected, you will be expected to start your first task within 24–48 hours of completing onboarding.

This is a 100% remote contract role, open to applicants worldwide in the countries the employer accepts.

Machine Learning

How applying works

  1. Click Apply now and enter your email.
  2. You go straight to the application. We email you a copy of this role and your link.
  3. Most platforms ask for a CV and a short skills test or AI interview in your field.
How to get this job

Your plan for “Junior Machine Learning Engineer”

Are you ready? Check what you have

Taken from this listing's own requirements.

0 / 3

What to know before you apply

Pay
At the published rate, 10 hours a week would be about $600–$1,200 and 20 hours about $1,200–$2,400 before tax. Hours depend on the project, so treat this as a ceiling, not a promise.
Openings
100 openings means this is a high-volume project. You are not competing for one seat: if you pass the test, there is room for you.
Location
Open worldwide in the countries the employer accepts. Payments usually go out through services like PayPal or Wise, so check one of them works in your country.
Timing
This listing is new today. Projects can close once they have enough people, so it is worth applying while it is open.
Test tips for data scientists
  • Check data leakage, metric choice and baselines before anything else.
  • Rebuild key numbers in a notebook when you can.
  • Explain trade-offs in plain language; reviewers value clarity.
Prepare free with Zekai

3 steps to stand out as one of the best data scientists

  1. 01

    Know the AI tools data scientists use

    Reviewers judge AI answers in your field. Knowing the tools people in your profession actually use helps you spot what good output looks like.

    All 593 AI tools for data scientists →
  2. 02

    Practise with real prompts

    Many tests ask you to write or judge prompts in your field. Practise on these first.

    Plot ROC Curve and Calculate AUC

    Using y_test (true labels) and y_pred_proba (predicted probabilities for the positive class from my classifier), generate a Python script to: 1. Calculate the AUC (Area Under the Curve) score. 2. Plot the ROC (Receiver Operating …

    Get Global Feature Importance

    I have a trained RandomForestClassifier model named model. My features have the names [[LIST_OF_FEATURE_NAMES]]. Generate Python code to extract the feature importances from the model, match them with their names, and create a ho…

    Prompt library for data scientists →
  3. 03

    Take the free 30-day AI challenge

    Five minutes a day to get confident with AI in your own work. Day 1 is open now, no card needed.

    Start Day 1 free →

    Guides for data scientists

Data Scientists

More paid AI roles for data scientists

Confidential clientAI training · Data Scientists

Competitive Data Scientist (Kaggle)

Top pay50 open
  • Remote · Worldwide
  • Contract · flexible hours

We're looking for data scientists, machine learning practitioners, and applied mathematics experts with competitive D…

$60–$120/hr
31d ago
Confidential clientAI training · Data Scientists

Scientific / ML Engineer

Top pay
  • Remote · United States
  • Contract · flexible hours

Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels th…

$90–$140/hr
3d ago
Confidential clientAI training · Data Scientists

Data Analysis Expert

Top pay
  • Remote · United States
  • Contract · flexible hours

The research teams behind the best-known AI models come to our partner for data judgment they can't generate on their…

$70–$120/hr
59d ago
Confidential clientAI training · Data Scientists

Agent Engineer

Top pay
  • Remote · United States
  • Contract · flexible hours

We are looking for engineers who build and operate LLM agents in production, and who have real visibility into how ag…

$100–$500/hr
92d ago
Confidential clientAI training · Data Scientists

Data Scientist Talent Network

Top pay
  • Remote · United States
  • Contract · flexible hours

Our partner is building a network of experienced data scientists for potential future projects with leading AI resear…

$100–$150/hr
107d ago
Confidential clientAI training · Data Scientists

Machine Learning Engineer Talent Network

Top pay
  • Remote · United States
  • Contract · flexible hours

Join our Machine Learning Engineer Expert Network to connect with leading AI labs and companies seeking your expertis…

$70–$250/hr
259d ago
new in the last 24 hours

New roles in your inbox every morning

Pick your field. One short email a day, only when new roles open. Unsubscribe any time.

Roles come from public listings and change daily. Pay is what the listing shows; offers depend on your test, experience and country. If you join through a Zekai link, the platform may pay Zekai a fee. Your pay stays the same.

$60–$120/hr
Get paid to train AI →

See Zekai first in Google