For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
W
Walter Achieng

Walter Achieng

ML Engineer

Kenya flagN/A, Kenya
$25.00/hrIntermediateAppenData Annotation TechImerit

Key Skills

Software

AppenAppen
Data Annotation TechData Annotation Tech
iMeritiMerit
Scale AIScale AI

Top Subject Matter

Document Classification
Wildlife Monitoring

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

ClassificationClassification
SegmentationSegmentation
Text GenerationText Generation
Question AnsweringQuestion Answering
Evaluation/RatingEvaluation/Rating
Computer Programming/CodingComputer Programming/Coding
Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

AI Engineering Intern (Capstone Project): Data preparation and image labeling for document classification. Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, American University in Cairo (2023) and Bachelor of Science, University of Cape Town (2020). AI-training focus includes data types such as Image and labeling workflows including Classification.

IntermediateEnglish

Labeling Experience

Wildlife Image Data Labeler (Project): Camera trap image annotation for species classification

ImageClassification
During a wildlife monitoring project, I fine-tuned a ResNet50 model using manually labeled camera trap images. I was responsible for curating the training dataset of 8,000 images, creating class labels for three mammal species, and validating label accuracy using domain expert feedback. The labeling process was fundamental for the reliable performance of the image classifier. • Hand-labeled thousands of images to support supervised model fine-tuning. • Integrated class labels into the training pipeline for efficient processing. • Coordinated with field researchers to verify label accuracy and relevance. • Optimized labeled dataset for balanced class representation.

During a wildlife monitoring project, I fine-tuned a ResNet50 model using manually labeled camera trap images. I was responsible for curating the training dataset of 8,000 images, creating class labels for three mammal species, and validating label accuracy using domain expert feedback. The labeling process was fundamental for the reliable performance of the image classifier. • Hand-labeled thousands of images to support supervised model fine-tuning. • Integrated class labels into the training pipeline for efficient processing. • Coordinated with field researchers to verify label accuracy and relevance. • Optimized labeled dataset for balanced class representation.

2023 - 2023

AI Engineering Intern (Capstone Project): Data preparation and image labeling for document classification

ImageClassification
I worked on a CNN-based computer vision system for document classification that relied on over 5,000 labeled images. My responsibilities included preparing and curating labeled datasets for training, ensuring labeling quality, and validating annotation consistency. I used custom scripts for labeling and validating image data prior to training the model. • Created image labels crucial for supervised learning of the classification model. • Conducted quality assurance reviews to ensure label accuracy and consistency. • Assisted with resolving difficult or ambiguous cases in the dataset. • Used internal tools and Python scripts for managing annotation workflows.

I worked on a CNN-based computer vision system for document classification that relied on over 5,000 labeled images. My responsibilities included preparing and curating labeled datasets for training, ensuring labeling quality, and validating annotation consistency. I used custom scripts for labeling and validating image data prior to training the model. • Created image labels crucial for supervised learning of the classification model. • Conducted quality assurance reviews to ensure label accuracy and consistency. • Assisted with resolving difficult or ambiguous cases in the dataset. • Used internal tools and Python scripts for managing annotation workflows.

2022 - 2023

Education

A

American University in Cairo

Bachelor of Science, Computer Science

Bachelor of Science
2020 - 2023
U

University of Cape Town

Bachelor of Science, Computer Science

Bachelor of Science
2017 - 2020

Work History

N

N/A

AI Engineering Intern

N/A
2022 - 2023
F

Freelance

Machine Learning Developer

Nairobi
2021 - 2022