Welcome to my neatstack.dev

JustineSoftware Engineer

Building robust and scalable web & mobile applications with modern technologies like React, Next.js, and React Native.

ReactNext.jsReact NativeTypeScriptTailwindDrizzlepostgres

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Available for work

Open to new opportunities

I'm currently available for Full-time positions (Remote).

Full-time
GMT+3
Response: Within 24 hours
Get in touch
Scheduling a call is the fastest way to reach me
Preferred regions:
USA
Europe
Asia
Professional Skills

Skills & Expertise

My technical toolkit spans modern frontend and mobile technologies with a focus on delivering exceptional user experiences

Skills Overview

FrontendMobileDatabaseAuthentication

Frontend Skills

React
Expert
95%

Component architecture, hooks, context API, performance optimization

Next.js
Advanced
90%

App router, server components, SSG/SSR, middleware

TypeScript
Advanced
88%

Types, interfaces, generics, utility types

Tailwind CSS
Advanced
92%
Framer Motion
Advanced
85%
HTML/CSS
Expert
95%
JavaScript
Expert
92%

Technologies & Tools

Featured Work

Projects & Applications

A showcase of my development work across web platforms and mobile applications.

Rift Valley Contractors
Next
React
Tailwind CSS
Agency Website

Rift Valley Contractors

View Details
01

Professional website for an electrical installation agency, featuring their services, portfolio, and contact information.

Technologies

Next.js
React
Tailwind CSS
Framer Motion
TypeScript
View Live
Ole Stones Builders
Next
React
Tailwind CSS
Construction Agency

Ole Stones Builders

View Details
02

A comprehensive website for a construction company that showcases their projects, services, and expertise.

Technologies

Next.js
React
Tailwind CSS
TypeScript
postgres
View Live
Kashi and Karz
React
Next
Tailwind CSS
Car Dealership

Kashi and Karz

View Details
03

E-commerce platform for a car dealership with inventory management, search functionality, and customer inquiry system.

Technologies

React
Next.js
Tailwind CSS
TypeScript
postgres
View Live
Pixel Layout
React
Next
Tailwind CSS
Web Development Agency

Pixel Layout

View Details
04

Modern website for a web development agency that highlights their services, process, and past projects.

Technologies

React
Next.js
Tailwind CSS
TypeScript
Framer Motion
View Live
Fundi Wangu Website
React
Next
Tailwind CSS
Service Platform

Fundi Wangu Website

View Details
05

Companion website for the Fundi Wangu mobile app, allowing service providers to manage their profiles and listings.

Technologies

React
Next.js
Tailwind CSS
TypeScript
Convex
View Live
Exorbit Space
Next
Drizzle ORM
Neon Postgres
Space Simulation

Exorbit Space

View Details
06

Interactive platform simulating exoplanets, star systems, and various space travel techniques with detailed calculations.

Technologies

Next.js
Drizzle ORM
Neon Postgres
Three.js
TypeScript
View Live
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Expert Bug Solutions

Complex Bug Fixing & Optimization

Expert diagnostics and solutions for the most challenging issues in Next.js and React Native applications.

Bug Fixing Magic

Solving the unsolvable
Next.js
React
Prisma
API Routes
React Native
Expo
Navigation
Animations

Next.js App Rescue

Expert diagnostics and solutions for broken Next.js applications. From hydration errors to API routes problems and performance optimization.

Hydration Errors

Client/server state mismatch, content flashing, React tree errors

API & Data Flow Issues

Server components, data fetching bugs, cache invalidation

Performance Optimization

Bundle size reduction, code splitting, rendering strategies

React Native & Expo Fixes

Specialized in fixing complex React Native and Expo application errors. From crashes to performance issues and navigation problems.

Expo Build Errors

EAS build failures, dependency conflicts, native module issues

UI & Navigation Bugs

React Navigation issues, screen transitions, layout breaks

Performance Optimization

Render optimization, memory leaks, animation smoothness

Performance Optimization

Comprehensive performance audits and optimizations for web and mobile applications. Transform slow, resource-heavy applications into lightning-fast experiences.

Load Speed

Optimize assets, code splitting, and server response times

UI Responsiveness

Eliminate jank, optimize rendering, smooth animations

Resource Usage

Reduce memory leaks, optimize CPU usage, improve battery life

Having trouble with a persistent bug?

Let's connect to discuss how I can help identify and resolve the most challenging issues in your application.

Open Source Contributions

GitHub Activity

See my open source contributions, repositories, and coding activity over time

Total contributions in the last year

Current contribution streak

Longest contribution streak

Contribution Activity

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Featured Repositories

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Technology Stack

Tools & Technologies

The core technologies I use to build modern, performant, and beautiful web and mobile experiences.

Frontend

5 technologies

95%
React
90%
Next.js
88%
TypeScript
92%
TailwindCSS
85%
Framer Motion

Mobile

3 technologies

88%
React Native
85%
Expo
85%
React Navigation
Always learning new technologies

This tech stack enables me to build robust, scalable applications with exceptional user experiences. I'm constantly exploring new tools and frameworks to enhance my development capabilities.

Get in Touch

Let's Build Something Amazing Together

Have a project in mind or need help with your existing application? I'm here to help you turn your ideas into reality.

Multiple Ways to Connect

Choose the contact method that works best for you. I'm available through various channels to ensure convenient communication.

Phone Direct

Quick call for immediate assistance

+254 773 739 080

WhatsApp

Chat directly about your project

Message on WhatsApp

Email

Send me detailed project requirements

justinenia20@gmail.com

LinkedIn

Connect professionally

View LinkedIn Profile

X (Twitter)

Follow for updates and tech insights

@neatstack

GitHub

Explore my open source work

View GitHub Profile

Ready to discuss your project in detail? Click below to open the contact dialog and let's start the conversation.

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