Open to opportunities

Japhter Osei

@japhterosei

Message

Customer-focused supervisor and data labeler with strong business administration foundation.

Ghana

Message

What I'm looking for

I seek a role where I can apply supervisory and data-annotation skills within a growth-oriented team, with opportunities for learning AI workflows and career advancement.

I am a Ghanaian professional with hands-on experience supervising retail food operations and performing data labeling for AI projects. I hold a Diploma in Advanced Business Certificate (Business Administration) and a WASSCE in General Arts.

At Waakye Guy Guy I stepped into a supervisory role, managing operations and supporting service delivery after the owner was temporarily unavailable, demonstrating leadership and reliability.

At Datamaker Ghana Limited I worked as a data labeler on projects spanning image, LiDAR, audio and text annotation, gaining exposure to AI-data workflows and quality standards.

I bring strong Microsoft Office skills, customer service, time management and problem-solving abilities, supported by several certificates including a Datamaker certification and awards recognizing community and professional engagement.

Experience

Work history, roles, and key accomplishments

Current

Data Labeler

Current

AYA Data Ghana Limited

Perform data labeling tasks using CVAT to prepare annotated datasets for machine learning pipelines, ensuring accuracy and consistency across projects.

Attention To Detail Data Labeling CVAT Image Annotation Quality Assurance Dataset Preparation

Data Labeler

Datamaker Ghana Limited

Mar 2023 - Mar 2024 (1 year)

Performed image, audio, text, and LiDAR annotation for AI training datasets, ensuring high-quality labels and meeting project accuracy and throughput targets from Mar 2023 to 2024.

Data Annotation Annotating Quality Assurance Attention To Detail Data Management

Food Service Supervisor

Waakye Guy Guy

Feb 2022 - Jun 2023 (1 year 4 months)

Supervised daily food service operations, coordinated staff during peak periods, and maintained service quality and hygiene standards from Feb 2022 to Jun 2023.

Team Leadership Customer Service Food Safety Scheduling Time Management Problem Solving

Education

Degrees, certifications, and relevant coursework

Lister Professional Institute

Diploma, Business Administration

2016 - 2018

Diploma in Advanced Business Certificate (Business Administration) covering modules in Marketing, Human Resources Management, Economics and Business Finance.

Preset Pacesetter High School

WASSCE, General Arts

2013 - 2016

Grade: C5, C6, C5, B3

Completed WASSCE studying General Arts with subjects including English Language, Mathematics, Social Studies and CRS; received grades C5, C6, C5 and B3 respectively.