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David Villa

David Villa

Senior Machine Learning Engineer - AI & Data Science

KENYA flag
Nairobi, Kenya
$50.00/hrExpertAppenAxiom AIClickworker

Key Skills

Software

AppenAppen
Axiom AI
ClickworkerClickworker
CloudFactoryCloudFactory
Data Annotation TechData Annotation Tech
DataloopDataloop
Label StudioLabel Studio
RemotasksRemotasks
Scale AIScale AI

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Computer Code ProgrammingComputer Code Programming
DocumentDocument
Geospatial Tiled ImageryGeospatial Tiled Imagery
ImageImage
Medical DicomMedical Dicom
TextText

Top Label Types

Computer Programming Coding
Cuboid
Data Collection
Diagnosis
Entity Ner Classification
Evaluation Rating
Fine Tuning
Geocoding
Mapping
Object Detection
Polygon
Prompt Response Writing SFT
Question Answering
Relationship
Routing
Text Generation
Transcription
Translation Localization

Freelancer Overview

I have over 8 years of experience working with large-scale machine learning systems and AI-driven applications, with a strong focus on data quality, annotation, and model evaluation. My expertise includes building and optimizing data pipelines for NLP and recommendation systems, developing dataset validation tools, and designing automated evaluation frameworks to ensure high-quality training data. I am highly proficient in Python, SQL, Apache Spark, and cloud platforms like AWS and Azure, and have hands-on experience processing multi-terabyte datasets and billions of records. My background includes leading projects in LLM fine-tuning, real-time fraud detection, and large-scale data processing for companies such as Amazon, Microsoft, and Google. I am passionate about leveraging robust data labeling and annotation strategies to drive model performance and reliability in production environments.

ExpertEnglish

Labeling Experience

No Data Labeling experience added

David V. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

U

University of California, Berkeley

Bachelor of Science, Computer Science

Bachelor of Science
2013 - 2016

Work History

A

Amazon

Senior Machine Learning Engineer

Seattle
2021 - Present
M

Microsoft

Data Scientist

Seattle
2018 - 2020