John S.

Key Skills

Software

Other

Top Subject Matter

Computer Vision / Object Detection (video-based)

Data Operations & Reporting (structured datasets)

MIS reporting & documentation (operational spreadsheets)

Top Data Types

Video

Text

Document

Image

Top Task Types

Tracking

Classification

Data Collection

Text Summarization

Question Answering

Freelancer Overview

Video Annotator / Data Annotation Specialist (Freelance, Remote). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other and Microsoft Excel. Education includes Bachelor of Science, Federal University of Technology, Minna (2023) and Certificate, Joseph Sarwuan Tarka University, CIPESS (2024). AI-training focus includes data types such as Video, Text, and Document and labeling workflows including Tracking, Evaluation, and Rating.

Labeling Experience

Data Entry and Documentation Support (S2dio Developers)

TextTranscription

Entered, organized, and maintained operational data using Microsoft Excel and digital records in support of documentation workflows. Prepared structured spreadsheets for tracking records, activities, summaries, and internal documentation. Reviewed data entries for errors, duplicates, and incomplete information, and supported data cleaning and record validation tasks. • Data entry and spreadsheet organization • Data cleaning and validation • Error/duplicate/incomplete record checks • Documentation support and internal summaries

2020 - Present

Data Operations & Reporting Coordinator (Radio Housing Project)

Text

Annotated, cleaned, structured, and validated project-related datasets using Microsoft Excel. Built and maintained Excel-based productivity trackers and management reports using formulas, filters, conditional formatting, and structured spreadsheets. Reviewed datasets for accuracy, completeness, and consistency, escalating discrepancies such as duplicates and missing entries for correction. • Dataset cleaning, validation, and formatting checks • Productivity and progress reporting for management • Discrepancy identification (missing, duplicate, inconsistent records) • Confidential record keeping and documentation workflows

2024 - Present

Video Annotator / Data Annotation Specialist (Freelance, Remote)

OtherVideoTracking

Performed video frame-by-frame review to identify, label, and validate objects according to provided annotation guidelines and SOPs. Checked completed annotations for errors such as missing labels, mislabeling, and inconsistent entries to ensure dataset quality. Organized annotation records, task progress, and quality feedback while maintaining confidentiality of project and client data. • Bounding box/object labeling and frame-level verification • Dataset validation, error detection, and consistency checks • Productivity tracking via Excel/Google Sheets • Coordinated corrections and feedback to improve annotation quality

2024 - Present

Excel Reporting & Data Documentation Assistant (Protiti Focus)

DocumentClassification

Managed and updated Excel-based data records, trackers, and reporting templates for ongoing reporting needs. Cleaned and validated spreadsheet data to ensure accuracy, completeness, and consistency before generating daily and weekly reports. Reviewed records to identify errors, inconsistencies, and missing information and organized summaries for management review. • Spreadsheet data cleaning and validation • Daily/weekly structured reporting • Error and gap identification • Use of sorting, filtering, formulas, and conditional formatting

2024 - 2024

Education

Work History