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Martin Sikuku

Martin Sikuku

AI Data Annotation Specialist - Machine Learning

KENYA flag
NAIROBI, Kenya
$50.00/hrExpertAppenClickworkerCVAT

Key Skills

Software

AppenAppen
ClickworkerClickworker
CVATCVAT
Data Annotation TechData Annotation Tech
LabelboxLabelbox

Top Subject Matter

No subject matter listed

Top Data Types

3D Sensor
AudioAudio
Computer Code ProgrammingComputer Code Programming
DocumentDocument
Geospatial Tiled ImageryGeospatial Tiled Imagery
ImageImage
Medical DicomMedical Dicom
TextText
VideoVideo

Top Label Types

Action Recognition
Audio Recording
Bounding Box
Classification
Data Collection
Entity Ner Classification
Land Cover Classification
Segmentation
Text Generation
Transcription
Translation Localization

Freelancer Overview

AI Training & Data Annotation Specialist | LiDAR, CV & NLP | QA Reviewer** AI Training Specialist with 4+ years of experience supporting large-scale machine learning projects through Remotasks. Skilled in **data labeling, annotation, and quality assurance** for AI model training across LiDAR 3D point clouds, computer vision (bounding boxes, polygons, semantic & instance segmentation), and NLP tasks including text classification, sentiment analysis, and Named Entity Recognition (NER). Promoted to **Reviewer** after maintaining 95%+ accuracy, with expertise in auditing datasets, performing error analysis, resolving annotation ambiguities, and improving inter-annotator agreement to ensure high-quality training data. Proficient in **CVAT, Labelbox**, and **Python** for data preprocessing, validation, workflow automation, and preparing structured datasets (JSON/CSV) for AI/ML pipelines. Experienced in dataset curation for autonomous systems, NLP models, and computer vision projects, ensuring consistent, production-ready training data. Detail-oriented, analytical, and deadline-driven, I deliver high-accuracy datasets that directly improve model performance and reliability.

ExpertEnglish

Labeling Experience

CVAT

Option 1 (Balanced & Powerful)** Senior AI Data Labeling & Model Evaluation Specialist | 4+ Years in LiDAR, Computer Vision & NLP | 95%+ Accuracy | QA Reviewer | Python | CVAT | Labelbox **Option 2 (Highly Technical)** AI Data Labeling & Model Evaluation Expert | LiDAR 3D Point Cloud, Semantic Segmentation & NLP Annotation | Dataset QA, Error Analysis & Inter-Annotator Calibration | Python Automation **Option 3 (Authority Positioning)** AI Data Labeling & Quality Assurance Specialist with 4+ Years in Production ML Pipelines via Remotasks | Reviewer-Level Precision | LiDAR, CV, NLP | Python

CVATVideoBounding BoxPolygon
AI Data Annotation Specialist and Quality Reviewer with 4+ years of experience supporting production-level ML pipelines through Remotasks. Promoted to Reviewer after sustaining 95%+ accuracy across complex LiDAR, computer vision, and NLP projects. Expert in 3D point cloud annotation, semantic and instance segmentation, bounding box optimization, and NLP evaluation tasks including text classification, sentiment analysis, and Named Entity Recognition (NER). Experienced in auditing datasets, conducting error analysis, resolving annotation ambiguities, and improving inter-annotator agreement to ensure high dataset integrity. Proficient in CVAT, Labelbox, and Python for data validation, JSON/CSV structuring, and workflow automation. Strong understanding of model feedback loops, edge-case detection, and quality calibration processes critical for LLM and computer vision model evaluation

AI Data Annotation Specialist and Quality Reviewer with 4+ years of experience supporting production-level ML pipelines through Remotasks. Promoted to Reviewer after sustaining 95%+ accuracy across complex LiDAR, computer vision, and NLP projects. Expert in 3D point cloud annotation, semantic and instance segmentation, bounding box optimization, and NLP evaluation tasks including text classification, sentiment analysis, and Named Entity Recognition (NER). Experienced in auditing datasets, conducting error analysis, resolving annotation ambiguities, and improving inter-annotator agreement to ensure high dataset integrity. Proficient in CVAT, Labelbox, and Python for data validation, JSON/CSV structuring, and workflow automation. Strong understanding of model feedback loops, edge-case detection, and quality calibration processes critical for LLM and computer vision model evaluation

2019 - 2022

Education

M

Moi University

Bachelor of Arts, Economics

Bachelor of Arts
2021 - 2021
M

Moi University

DEGREE, IT & CYBER SECURITY

DEGREE
2018 - 2021

Work History

F

Fourth Generation Capital

Debt Collection Officer

Nairobi
2023 - Present
N

Newark Frontiers

Business Development Officer

Nairobi
2023 - 2023