Simba Simbarashe

Key Skills

Software

Other

Mercor

Appen

Top Subject Matter

Physics Domain Expertise

Mathematics Domain Expertise

Stem Domain Expertise

Top Data Types

Text

Image

Computer Code Programming

Top Task Types

Bounding Box

Polygon

Object Detection

Prompt + Response Writing (SFT)

Transcription

Freelancer Overview

AI Trainer / Physics & STEM Expert (Outlier AI). Brings 15+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Mercor, and Handshake. Education includes Doctor of Philosophy, National Institute for Space Research (INPE) (2023) and Master of Science, Universidade Federal de Campina Grande (2018).

Labeling Experience

AI Trainer / Data Annotator (Handshake - Freelance)

Text

As a freelance AI Trainer and Data Annotator on Handshake, I labeled scientific content for AI/ML projects requiring domain expertise. My work involved evaluating and correcting AI model outputs in Physics and space science, focusing on accuracy and high throughput. Tasks covered binary labeling, ranking, summarization, and question answering. • Labeled and annotated scientific training data. • Evaluated model outputs and wrote corrections. • Maintained high annotation accuracy and throughput. • Executed diverse labeling including question answering and summarization.

As a freelance AI Trainer and Data Annotator on Handshake, I labeled scientific content for AI/ML projects requiring domain expertise. My work involved evaluating and correcting AI model outputs in Physics and space science, focusing on accuracy and high throughput. Tasks covered binary labeling, ranking, summarization, and question answering. • Labeled and annotated scientific training data. • Evaluated model outputs and wrote corrections. • Maintained high annotation accuracy and throughput. • Executed diverse labeling including question answering and summarization.

2026 - Present

AI Trainer / General Tasker (Mercor)

MercorText

At Mercor, I provided expert-level data annotation and AI training services across physics, data science, and programming domains. I was responsible for annotating, evaluating, and refining complex datasets to optimize AI model performance. Diverse responsibilities ranged from text classification to code review and benchmarking. • Annotated and evaluated datasets in science and programming. • Collaborated with project managers for annotation consistency. • Addressed benchmarking and fine-tuning of STEM datasets. • Performed general labeling including fact-checking and instruction evaluation.

At Mercor, I provided expert-level data annotation and AI training services across physics, data science, and programming domains. I was responsible for annotating, evaluating, and refining complex datasets to optimize AI model performance. Diverse responsibilities ranged from text classification to code review and benchmarking. • Annotated and evaluated datasets in science and programming. • Collaborated with project managers for annotation consistency. • Addressed benchmarking and fine-tuning of STEM datasets. • Performed general labeling including fact-checking and instruction evaluation.

2026 - Present

AI Trainer / Physics & STEM Expert (Outlier AI)

OtherText

As an AI Trainer and Physics & STEM Expert at Outlier AI, I generated high-quality STEM training data by solving advanced Physics problems for language models. I annotated datasets, provided detailed feedback, and performed structured labeling aligned with guidelines. Additional tasks included ranking model responses, scientific QA, and multi-domain annotation assignments. • Solved complex physics, math, and coding problems for model training. • Evaluated, annotated, and ranked AI-generated content for accuracy. • Applied structured feedback loops to improve model reasoning. • Completed general tasker assignments including text and code labeling.

As an AI Trainer and Physics & STEM Expert at Outlier AI, I generated high-quality STEM training data by solving advanced Physics problems for language models. I annotated datasets, provided detailed feedback, and performed structured labeling aligned with guidelines. Additional tasks included ranking model responses, scientific QA, and multi-domain annotation assignments. • Solved complex physics, math, and coding problems for model training. • Evaluated, annotated, and ranked AI-generated content for accuracy. • Applied structured feedback loops to improve model reasoning. • Completed general tasker assignments including text and code labeling.

2026 - Present

Education

Work History