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Hezekiah K.

Hezekiah K.

Undergraduate Research Assistant (Machine Learning pipeline for soil analysis)

Kenya flagNairobi, Kenya

Key Skills

Software

AppenAppen
ClickworkerClickworker
CloudFactoryCloudFactory
CrowdFlowerCrowdFlower
CrowdSourceCrowdSource
Data Annotation TechData Annotation Tech
Google Cloud Vertex AIGoogle Cloud Vertex AI
HiveMindHiveMind
Kili TechnologyKili Technology
LabelboxLabelbox
Img Lab
RemotasksRemotasks
Scale AIScale AI
TelusTelus

Top Subject Matter

Agricultural sciences / Soil analysis using NIR spectroscopy
Artificial intelligence and IoT
Science and technology

Top Data Types

ImageImage
DocumentDocument
VideoVideo

Top Task Types

PolygonPolygon
Object DetectionObject Detection
Text GenerationText Generation
TranscriptionTranscription
Computer Programming/CodingComputer Programming/Coding
Data CollectionData Collection
ClassificationClassification
Fine-tuningFine-tuning

Freelancer Overview

Undergraduate Research Assistant (Machine Learning pipeline for soil analysis). Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Science, University of Nairobi, Chiromo Campus (2025) and Kenya Certificate of Secondary Education, Kisii School (2020). AI-training focus includes data types such as Computer Code and Programming and labeling workflows including Evaluation, Rating, and Computer Programming.

Labeling Experience

ML-Based Soil Analysis System (Capstone / project work)

Other

Developed application-layer AI-enabled functionality as part of an ML soil-analysis system project under a broader capstone portfolio. Prepared and deployed code components for data-driven prediction using established ML algorithms. Ensured the solution met evaluation targets through model performance reporting. • Built prediction workflow using Python-based ML tooling. • Leveraged Random Forest, SVM, and Neural Networks for NIR-based soil property prediction. • Reported model performance metrics including R² values for pH, potassium, and phosphorus. • Included PCA-based variance retention (92.4% with 3 components) to support preprocessing.

2024 - 2025

Undergraduate Research Assistant (Machine Learning pipeline for soil analysis)

Other

Developed and evaluated an ML workflow for predicting soil properties from NIR spectroscopy data in a research setting. Applied feature engineering and model training to support accurate soil fertility assessment. Documented pipeline results and prepared technical materials for the project. • Implemented end-to-end ML pipeline and achieved reported accuracy (~92%). • Used PCA to reduce dimensionality while preserving variance explanation (92.4% with 3 components). • Trained models including Random Forest, SVM, and Neural Networks. • Produced technical reports and documentation for research deliverables.

2021 - 2025

Education

U

University of Nairobi, Chiromo Campus

Bachelor of Science, Microprocessor Technology and Instrumentation

Bachelor of Science
2021 - 2025
K

Kisii School

Kenya Certificate of Secondary Education, Secondary Education

Kenya Certificate of Secondary Education
2017 - 2020

Work History

I

Independent Contractor

Freelance Full-Stack Developer

Nairobi
2024 - Present
S

Solutech

Research Assistant

Nairoobi
2026 - 2026