Edwin Gitau

Key Skills

Software

Micro1

Mercor

Other

Top Subject Matter

AI Reasoning and Modelling

Engineering- Electrical, Physics and Mathematics

Software Development

Top Data Types

Text

Image

Video

Top Task Types

Prompt + Response Writing (SFT)

Classification

RLHF

Text Summarization

Question Answering

Object Detection

Data Collection

Text Generation

Freelancer Overview

Image Annotator. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Mercor, and Micro1. Education includes Bachelor of Science, Jomo Kenyatta University of Agriculture and Technology (2022) and Diploma, Kenyatta University (2022). AI-training focus includes data types such as Image and Text and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Robotics Generalist (AI Data Contributor)

Micro1ImageData Collection

As a Robotics Generalist (AI Data Contributor) at Micro1, I generated and validated datasets for robotics AI systems. My work focused on evaluating outputs for correctness and edge case handling. I performed iterative dataset refinement to improve model accuracy and consistency. • Built and updated annotated datasets specific to robotics tasks • Validated logical consistency in AI outputs • Identified and documented model edge cases • Refined data workflows to enhance AI training quality

As a Robotics Generalist (AI Data Contributor) at Micro1, I generated and validated datasets for robotics AI systems. My work focused on evaluating outputs for correctness and edge case handling. I performed iterative dataset refinement to improve model accuracy and consistency. • Built and updated annotated datasets specific to robotics tasks • Validated logical consistency in AI outputs • Identified and documented model edge cases • Refined data workflows to enhance AI training quality

2026 - Present

Domain Expert (AI Evaluation & Training)

MercorTextPrompt Response Writing SFT

As a Domain Expert (AI Evaluation & Training) at Mercor, I designed and evaluated prompts to test AI reasoning and problem-solving. I assessed AI outputs for depth and accuracy across complex scenarios. My role included identifying and analyzing model failure patterns for improvement. • Crafted prompts to challenge AI reasoning • Evaluated structured and nuanced responses • Analyzed approximation vs. correct logical processes • Provided detailed feedback for model tuning

As a Domain Expert (AI Evaluation & Training) at Mercor, I designed and evaluated prompts to test AI reasoning and problem-solving. I assessed AI outputs for depth and accuracy across complex scenarios. My role included identifying and analyzing model failure patterns for improvement. • Crafted prompts to challenge AI reasoning • Evaluated structured and nuanced responses • Analyzed approximation vs. correct logical processes • Provided detailed feedback for model tuning

2025 - Present

AI Data Specialist / AI Trainer

OtherText

As an AI Data Specialist and AI Trainer at RWS TrainAI, I conducted multilingual and technical dataset annotation and evaluation tasks. I assessed model outputs using structured rubrics and provided comparative feedback to enhance model quality. My responsibilities contributed to greater accuracy, clarity, and consistency in AI performance. • Annotated multilingual and technical data • Applied structured rubrics in evaluation • Provided feedback to improve models • Enhanced clarity and consistency in results

As an AI Data Specialist and AI Trainer at RWS TrainAI, I conducted multilingual and technical dataset annotation and evaluation tasks. I assessed model outputs using structured rubrics and provided comparative feedback to enhance model quality. My responsibilities contributed to greater accuracy, clarity, and consistency in AI performance. • Annotated multilingual and technical data • Applied structured rubrics in evaluation • Provided feedback to improve models • Enhanced clarity and consistency in results

2024 - Present

Image Annotator

OtherImageClassification

As an Image Annotator at Handshake, I was responsible for labeling and classifying images used for training computer vision models. I consistently ensured accuracy across large volumes while flagging challenging or edge-case inputs. My work contributed to improving the robustness and reliability of annotated datasets. • Labeled and classified images for computer vision models • Maintained high consistency and attention to detail • Flagged ambiguous cases for review • Improved dataset quality for model training

As an Image Annotator at Handshake, I was responsible for labeling and classifying images used for training computer vision models. I consistently ensured accuracy across large volumes while flagging challenging or edge-case inputs. My work contributed to improving the robustness and reliability of annotated datasets. • Labeled and classified images for computer vision models • Maintained high consistency and attention to detail • Flagged ambiguous cases for review • Improved dataset quality for model training

2025 - 2025

Physics & Mathematics AI Trainer

OtherTextText Generation

As a Physics & Mathematics AI Trainer at Outlier, I developed and evaluated STEM-specific training data to support AI learning. I reviewed model outputs for mathematical and scientific accuracy, correcting errors and ensuring logical structure. The role required detailed problem-solving and rigorous quality review processes. • Developed STEM-focused training datasets • Reviewed and corrected model outputs • Ensured logical consistency in problem-solving • Performed structured evaluation of mathematical and physics data

As a Physics & Mathematics AI Trainer at Outlier, I developed and evaluated STEM-specific training data to support AI learning. I reviewed model outputs for mathematical and scientific accuracy, correcting errors and ensuring logical structure. The role required detailed problem-solving and rigorous quality review processes. • Developed STEM-focused training datasets • Reviewed and corrected model outputs • Ensured logical consistency in problem-solving • Performed structured evaluation of mathematical and physics data

2023 - 2024

Education

Work History