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J
Joseph Jaja

Joseph Jaja

Data Automation Specialist — Aya Data

Ghana flagRemote, Ghana
Intermediate

Key Skills

Software

No software listed

Top Subject Matter

General Machine Learning
Text Data Processing
Legal Services & Contract Review

Top Data Types

TextText
DocumentDocument

Top Task Types

ClassificationClassification

Freelancer Overview

Data Automation Specialist (Data Annotation & Quality Reviewer), Aya Data. Brings 5+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Associate Degree, Ho Technical University (2023) and Certificate, GCOM Information Institute Technology (2021). AI-training focus includes data types such as Text and labeling workflows including Classification.

Intermediate

Labeling Experience

Data Automation Specialist — Aya Data

TextClassification
Responsible for preparing and reviewing structured datasets for AI model training according to quality guidelines. Automated text data cleaning, transformation, and formatting using Python scripts to match the target annotation schema. Conducted comprehensive quality checks of annotated outputs in a remote, asynchronous environment. • Delivered datasets meeting specified quality standards for training machine learning models. • Managed multiple concurrent annotation task queues independently. • Followed detailed task rubrics and project-specific instructions with high accuracy. • Used Python and workflow automation to ensure dataset consistency and efficiency.

Responsible for preparing and reviewing structured datasets for AI model training according to quality guidelines. Automated text data cleaning, transformation, and formatting using Python scripts to match the target annotation schema. Conducted comprehensive quality checks of annotated outputs in a remote, asynchronous environment. • Delivered datasets meeting specified quality standards for training machine learning models. • Managed multiple concurrent annotation task queues independently. • Followed detailed task rubrics and project-specific instructions with high accuracy. • Used Python and workflow automation to ensure dataset consistency and efficiency.

2025 - 2025

Education

D

DataCamp

Professional Certification, Data Analytics

Professional Certification
2026 - 2026
I

Institute of ICT Professionals Ghana (IIPGH)

Scholarship Award, Machine Learning

Scholarship Award
2025 - 2025

Work History

S

Self-Employed

Data & IT Tutor

Remote & In-Person
2024 - Present
S

Self-Employed

Freelance Data & IT Tutor

Remote
2024 - Present