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J
John

John

Fullstack Developer

Nigeria flagLekki, Nigeria
$150.00/hrEntry LevelMercorMicro1

Key Skills

Software

MercorMercor
Micro1

Top Subject Matter

Healthcare – Medical Records & Patient Data
Finance – Risk Analysis & Fraud Detection
E-commerce – Product Categorization & Customer Support

Top Data Types

Computer Code ProgrammingComputer Code Programming

Top Task Types

Computer Programming/CodingComputer Programming/Coding

Freelancer Overview

Full-stack developer with over 6 years of professional experience working on complex digital products, data-driven workflows, and quality-focused execution. Skilled in analyzing large datasets, following detailed guidelines, and delivering accurate outputs under structured review processes. Experienced in problem-solving, research, and maintaining high consistency across repetitive or precision-based tasks. Brings strong technical understanding of AI systems, prompt evaluation, data annotation standards, and model performance feedback. Comfortable working independently in remote environments, learning new tools quickly, and contributing to projects that improve machine learning model accuracy, usability, and real-world performance.

Entry LevelEnglish

Labeling Experience

Frontend Developer — UI Interface Implementation

Computer Code ProgrammingComputer Programming Coding
Designed and developed responsive single-page HTML interfaces focused on usability, performance, and clean visual structure. Worked closely with product requirements to translate functional specifications into intuitive UI layouts using semantic HTML, modern CSS, and lightweight JavaScript interactions. Ensured cross-browser compatibility, mobile responsiveness, and fast load performance across different screen sizes and devices. Applied strong attention to detail in layout consistency, spacing systems, typography hierarchy, and user interaction flows. Conducted iterative refinements based on feedback and testing outcomes to improve accessibility, clarity, and overall user experience. Delivered maintainable and scalable interface components suitable for integration into larger web applications and remote development workflows.

Designed and developed responsive single-page HTML interfaces focused on usability, performance, and clean visual structure. Worked closely with product requirements to translate functional specifications into intuitive UI layouts using semantic HTML, modern CSS, and lightweight JavaScript interactions. Ensured cross-browser compatibility, mobile responsiveness, and fast load performance across different screen sizes and devices. Applied strong attention to detail in layout consistency, spacing systems, typography hierarchy, and user interaction flows. Conducted iterative refinements based on feedback and testing outcomes to improve accessibility, clarity, and overall user experience. Delivered maintainable and scalable interface components suitable for integration into larger web applications and remote development workflows.

2026 - Present

Education

A

AUD Comprehensive School

SSLC, Science

SSLC
2017 - 2019

Work History

M

Muvn

Fullstack Developer

Lekki
2024 - Present
M

Meprotocol

Full-stack Developer

Lekki
2022 - 2024