Ugochukwu I.

Key Skills

Software

Don't disclose

Other

Top Subject Matter

Geoscience (hydrology, geochemistry)

Environmental modeling and soil microplastics

Soil microplastics analysis and polymer identification

Top Data Types

Text

Document

Top Task Types

Data Collection

Freelancer Overview

Bachelor’s Thesis data collection and measurement for geochemical analysis. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose, MATLAB, and Other. Education includes Master of Science, Chulalongkorn University (2024) and Bachelor of Engineering, Ladoke Akintola University of Technology (2019). AI-training focus includes data types such as Text, Geospatial, and Tiled Imagery and labeling workflows including Data Collection, Computer Programming, and Coding.

Labeling Experience

Master’s Thesis lab workflow generating labeled microplastic observations

OtherTextData Collection

Conducted soil microplastic sample processing and optical/spectroscopic quantification to generate labeled observations for polymer type and microplastic presence. The work included extracting microplastics, separating fractions by density, and recording microscope-based counts and FTIR-based polymer identifications. These measurements were then compiled into a distribution dataset for watershed analysis. • Performed digestion and density separation for microplastic extraction • Used microscopy to quantify and identify microplastics • Applied FTIR to analyze and categorize microplastic polymers • Created a database documenting soil microplastic distribution across land uses and the watershed

2022 - 2024

Master’s Thesis (Machine Learning) — spatial distribution prediction

Built and validated machine learning models to predict soil microplastic distribution patterns in a watershed. Prepared analytical datasets from laboratory results and applied ML workflows for spatial prediction using numerical features. The resulting models were used to assess spatial distribution patterns of microplastics. • Developed Random Forest and ANN models in MATLAB for microplastic distribution prediction • Curated and structured a watershed microplastic distribution database • Ran analytical pipelines that transform lab measurements into ML-ready features • Supported evaluation of spatial prediction outputs for the thesis objective

2022 - 2024

Bachelor’s Thesis data collection and measurement for geochemical analysis

Don't discloseTextData Collection

Collected and prepared geoscience field and lab data to support downstream analysis, including samples used for geochemical and water-parameter evaluation. The work involved collecting lacustrine sediment and measuring water chemistry using handheld/field instruments. These outputs served as labeled inputs for scientific modeling and interpretation workflows. • Sample collection and documentation for inorganic geochemical analysis • Measurement of pH, total dissolved solids, and electrical conductivity • Recording and organizing dataset fields for later analysis • Supporting interpretation of trace element concentrations

2014 - 2019

Education

Work History