Joseph Popoola

Top-Rated Full Stack Developer on Upwork, focused on building beautiful web applications and mobile apps with extra attention to details

Ikeja, Lagos, Nigeria, GMT +1

JP

About

As a Top-Rated Full Stack Developer on Upwork, I have successfully built multiple web and mobile products from 0 to 1. I lead development teams effectively, ensuring an environment where people can do their best work. Currently, I work mostly with TypeScript, Next.js, React, React Native, and modern development technologies. I have over 6 years of experience in working remotely with companies all around the world, maintaining a 100% job success score and 5-star client ratings. I specialize in creating intuitive user interfaces for web applications, mobile apps, enterprise solutions, e-commerce platforms, and CRM systems that serve thousands of users.

Work Experience

Upwork - Freelancer
Remote
Top Rated

2019 - Present

Senior Frontend Developer

As a Senior Frontend Developer at Upwork - Freelancer I've:

•Achieved Top Rated status with 100% Job Success Score and 5-star client ratings across all projects
•Delivered high-quality React, Next.js, and React Native applications for diverse international clients
•Built responsive web interfaces and cross-platform mobile apps for e-commerce, SaaS, and enterprise solutions
•Specialized in converting Figma designs to pixel-perfect web applications and mobile app interfaces
•Consistently exceeded client expectations while managing complex frontend projects from design to deployment
•Successfully completed 50+ projects with 95% client retention rate and multiple long-term partnerships
Skills:- React | Next.js | React Native | TypeScript | TailwindCSS | Figma to Code | Mobile Development

RealtyView Bridge
Web Application
CRM Integration

2022 - Present

Lead Frontend Developer

As a Lead Frontend Developer at RealtyView Bridge I've:

•Built the user interface for the integration platform empowering CRMs and Brokerages to connect, exchange, and enrich listing data
•Developed responsive and intuitive frontend components for data synchronization management
•Implemented real-time data visualization and mapping interface with advanced filtering and sorting
•Created comprehensive dashboard UI for brokerages to manage their data connections and monitor sync status
•Built dynamic property listing interfaces handling thousands of listings with optimized performance
•Designed and implemented user interfaces for integration with major real estate platforms and MLS systems
Skills:- Next.js | React | TypeScript | TailwindCSS | REST API Integration | Real Estate Data Visualization

Retail Craft
E-commerce Platform
POS System

2023 - Present

Senior Frontend Engineer

As a Senior Frontend Engineer at Retail Craft I've:

•Developed user interfaces for comprehensive point of sale retail platform for businesses and stores
•Built responsive user management interfaces allowing businesses to set up profiles and manage staff accounts
•Created advanced product catalog UI with inventory management, search functionality, and real-time stock updates
•Implemented secure payment processing interfaces with multiple payment gateway integrations
•Designed and built responsive admin dashboard for sales analytics, reporting, and business insights with interactive charts
•Developed customer management interfaces with purchase history visualization and loyalty program features
Skills:- Next.js | React | TypeScript | TailwindCSS | Zustand | Stripe Integration | Data Visualization

Genswift - Pharmaceutical Solutions
Enterprise Application
Healthcare

2023 - Present

Lead Frontend Developer

As a Lead Frontend Developer at Genswift - Pharmaceutical Solutions I've:

•Built responsive user interfaces for enterprise web application serving pharmaceutical company operations
•Developed comprehensive staff management UI with role-based access control and intuitive navigation
•Created client relationship management interfaces with detailed interaction tracking and data visualization
•Implemented real-time messaging interface for internal team communication with modern chat UI
•Built notification system UI for critical updates, deadlines, and compliance reminders with priority indicators
•Designed memo distribution interface for company-wide announcements with rich text editor and file attachments
Skills:- Next.js | React | TypeScript | TailwindCSS | WebSocket | Real-time UI | Enterprise UX Design

FieldMaxPro - Enterprise Mobile Solutions
Mobile App
Enterprise

2023 - Present

Lead Mobile Developer

As a Lead Mobile Developer at FieldMaxPro - Enterprise Mobile Solutions I've:

•Built comprehensive enterprise field force management system for Sales and Marketing teams in retail businesses
•Developed cross-platform mobile app with React Native and Expo for consumer packaged goods distribution
•Implemented offline-first functionality allowing field representatives to work without internet connectivity
•Created real-time data synchronization for business intelligence and competitor analysis features
•Built intuitive mobile interfaces for retail visibility assessment and product availability tracking
•Designed collaborative work planning system connecting field representatives with their managers
Skills:- React Native | Expo | TypeScript | Offline Storage | Real-time Sync | Enterprise Mobile Architecture

Carrio (Quick Courier)
Mobile App
International

2024 - Present

Lead Mobile Developer → Product Owner

As a Lead Mobile Developer at Carrio (Quick Courier) I've:

•Developed mobile application connecting travelers with people needing international item transport
•Built secure user verification system with government ID and multi-factor authentication
•Implemented sophisticated matching algorithm connecting travelers and senders globally
•Created comprehensive escrow payment system with multi-currency support
•Developed real-time location sharing and in-app messaging for secure handovers
•Integrated payment processing with Stripe and international compliance features
Skills:- React Native | Expo | TypeScript | Supabase | Stripe API | Google Maps | Twilio

Errands App
Mobile App
Campus Solution

2024 - Present

Lead Mobile Developer → Founder

As a Lead Mobile Developer at Errands App I've:

•Built revolutionary peer-to-peer delivery platform for Caleb University students
•Developed seamless integration with existing campus food ordering system
•Implemented secure authentication system and escrow payment processing
•Created comprehensive runner matching algorithm and real-time tracking system
•Achieved 94% student interest rate and projected 30% adoption within first semester
•Built safety features including student ID verification and location tracking
Skills:- Expo | Supabase | TypeScript | Firebase | Google Maps API | Payment Integration

Skills

Languages

JavaScript (ES6+)
TypeScript
HTML5
CSS3/SCSS/LESS

Frontend Frameworks & Libraries

React.js
Next.js
Redux/Zustand
React Router
Context API

Mobile Development

React Native
Expo
iOS Development
Android Development
Mobile UI/UX
Cross-platform Development
Offline-first Apps
Push Notifications
App Store Optimization

API Integration & Data

REST APIs
GraphQL
Firebase
Supabase
API Integration
Data Fetching

UI Frameworks & Libraries

TailwindCSS
Chakra UI
Material-UI
Styled Components
Ant Design
Framer Motion
Shadcn/ui

Web Development Tools

Webpack
Vite
ESLint
Prettier
Storybook
Chrome DevTools
PostCSS

Payment & E-commerce

Stripe
Paystack
Flutterwave
PayPal
E-commerce Integration
POS Systems
In-App Purchases
Mobile Payments

Cloud & DevOps

AWS
Vercel
Netlify
Docker
CI/CD
GitHub Actions
Digital Ocean

Testing & Quality

Jest
React Testing Library
Cypress
Unit Testing
Integration Testing

Version Control & Project Management

Git
GitHub
GitLab
Jira
Trello
Slack
Linear

Design & UX

Figma
Adobe XD
Responsive Design
Web Accessibility
User Experience Design
Component Design Systems

Frontend Architecture & Performance

Component Architecture
State Management
Server-Side Rendering (SSR)
Static Site Generation (SSG)
WebSocket Integration
Frontend Performance Optimization

Specialized Frontend Skills

Progressive Web Apps
SEO Optimization
Frontend CRM Integration
Enterprise UI Development
Interactive Data Visualization
Real-time Frontend Features

Education

Caleb University

2021 - 2025
Bachelor's Degree in Architecture

The App Brewery, UK

2021 - 2021
Diploma in Mobile Development Bootcamp

Scrimba, Oslo, Norway

2022 - 2022
Front Development Bootcamp

Duke University, Coursera, USA

2022 - 2022
Programming Foundations with JavaScript, HTML, CSS, and React

The Polytechnic, Ibadan - Saki Campus

2017 - 2019
National Diploma in Architectural Technology

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