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LEBOHANG RAMATLAPENG

@lebohangramatlapeng

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Data annotator and software developer focused on accurate, efficient ML-ready datasets.

South Africa

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What I'm looking for

I’m looking for a role where I can label and validate high-quality datasets for ML, while also building practical software to improve usability. I want a team that values accuracy, consistency, and continuous improvement through QA and collaborative development.

I’m a detail-oriented Data Annotator and Software Developer with hands-on experience preparing and labeling datasets for machine learning applications. I focus on accuracy, consistency, and efficiency, so training data stays reliable across projects.

In my current role, I annotate and label datasets for multiple machine learning model training efforts, maintaining high accuracy in tagging and performing quality checks and validation against project standards. I collaborate with developers and researchers to improve dataset structure and usability.

Alongside data work, I build software projects that strengthen my ability to deliver usable, user-friendly experiences. I’ve developed interactive applications, including a secure multi-page desktop GUI with authentication, a 3D futuristic city simulation using OpenGL, and a responsive frontend web application with form validation.

Experience

Work history, roles, and key accomplishments

Current

Data Annotator

Current

Human Signal

Jan 2026 - Present (4 months)

Annotate and label machine learning training datasets across multiple projects, maintaining high accuracy and consistent tagging. Perform quality checks and collaborate with developers and researchers to improve dataset structure and usability.

Data Annotation Data Quality Assurance Cross Functional Collaboration

Student Worker

Denel Dynamics

Dec 2013 - Jan 2014 (1 month)

Provided customer service and supported branch managers with administrative tasks and projects. Assisted with payroll and accounting duties, including collecting receipts, calculating taxes, and preparing reports, and coordinated with vendors for office supplies.

Vendor coordination Customer Service Administrative Support Payroll Assistance Tax Calculation Report Preparation Student Welfare Computer Aided Design (CAD)