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Brandol Ruto

Brandol Ruto

Data Science Engineer - Machine Learning & Data Engineering

KENYA flag
Nairobi, Kenya
$20.00/hrExpertCVATLabelboxRemotasks

Key Skills

Software

CVATCVAT
LabelboxLabelbox
RemotasksRemotasks
Scale AIScale AI
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Top Data Types

Computer Code ProgrammingComputer Code Programming
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Geospatial Tiled ImageryGeospatial Tiled Imagery
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Top Label Types

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Classification
Computer Programming Coding
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Freelancer Overview

I am a data science engineer with hands-on experience in data annotation, labeling, and building high-quality AI training datasets for machine learning projects in domains such as computer vision and NLP. My background includes refining and labeling datasets to improve model accuracy, redesigning annotation tools for more efficient workflows, and collaborating with cross-functional teams to ensure data quality. I am skilled in Python, OpenCV, MongoDB, Apache Spark, and have used platforms like AWS and Azure for large-scale data engineering and model deployment. My work has directly contributed to the development of robust machine learning pipelines, from curating and preprocessing raw data to implementing data quality checks and validation processes. I am passionate about delivering clean, reliable training data that drives impactful AI solutions.

ExpertEnglish

Labeling Experience

Data Science Tutor

OtherComputer Code ProgrammingEvaluation RatingComputer Programming Coding
Evaluated and refined AI-generated code using Python and performance-profiling tools, ensuring efficiency, scalability, and reliability; delivered analytical writing feedback that clarified documentation and reduced review cycles Trained new machine-learning tasks with statistical inference methods in Apache Spark, collaborating with technical staff to deploy models that expanded the platform’s capabilities and supported additional use cases Collaborated with technical staff to redesign annotation tools using OpenCV and MongoDB, creating a more efficient workflow that lowered annotation time per image Provided detailed input and labeled datasets for project pipelines, improving training data quality and contributing to higher model accuracy

Evaluated and refined AI-generated code using Python and performance-profiling tools, ensuring efficiency, scalability, and reliability; delivered analytical writing feedback that clarified documentation and reduced review cycles Trained new machine-learning tasks with statistical inference methods in Apache Spark, collaborating with technical staff to deploy models that expanded the platform’s capabilities and supported additional use cases Collaborated with technical staff to redesign annotation tools using OpenCV and MongoDB, creating a more efficient workflow that lowered annotation time per image Provided detailed input and labeled datasets for project pipelines, improving training data quality and contributing to higher model accuracy

2024 - 2025

Education

B

Boston University

Master of Science, Data Science

Master of Science
2023 - 2024
K

Kenyatta University

Bachelor of Science, Computer Science

Bachelor of Science
2018 - 2022

Work History

S

Salabat P.

Data Science Engineer

Abu Dhabi
2024 - Present
D

Delsy Inc.

R&D Software Engineer Intern

Nairobi
2023 - 2023