Aliaksandr H.
Warsaw, Poland
96%
Job Success
Top Rated Plus
Fullstack iOS/JavaScript/TypeScript/React/React Native/Cloud developer
$20.00/hr
Hello. I'm a full-stack iOS/Android/PHP/JavaScript/TypeScript/React/React Native developer and problem solver with more than 15 years of experience. Specializing in MERN and LAMP stacks, artificial intelligence (AI).
What I do: 📱 Mobile apps, 🖥️ Desktop apps, 🌐 Websites, ⚙️ Web services, 👨🏻💻 Admin Backends, 🧩 API for them, 🤖 ChatGPT integrations.
Kinds of software I've created: 🛍️ Shopping & online stores, 🏃 Sports, 🎮 Games, 🧘 Medicine & well-being, ✈️ Travel, 💰 Bank systems, 📣 Ad networks, 🛡️ Insurance, 🛬 Landing pages.
I have strong skills in the following programming languages: 📜 TypeScript, ☕ JavaScript, 🦅 Swift, 🎯 Objective-C, 🐘 PHP, 🐱 Kotlin, ☕ Java.
Frameworks and technologies: 🦕 Deno & Node, ⚛️ React, ⚛️ React Native, 🤖 ChatGPT API, 🐻 Zustand, ⚛️ Electron, 🆁 Redux, 🆁 Redux Toolkit, 🐆 Nest.js, 🅽 Next.js, 🆅 Vue, 🐆 Fastify, 🥤 Fresh, 🅰 Apollo GraphQL Client and Server, 🔌 Relay, 🅼 MobX, 🌳 Koa, 🅴 Express.js, 📈 GraphQL, 😎 Swagger, 💨 Tailwind, 🦅 SwiftUI, 🎥 Lottie Files, 🥤 Cocoa Touch, 🥥 Cocos2D, 🅻 Laravel, 🎵 Symfony, 🆈 YII and YII2, 🔥 CodeIgnitor, 🆉 Zend Framework, 📍 CoreLocation, 🎥 CoreAnimation.
Databases: 🍃 Mongo, 🐬 MySQL, 🪶 SQLite, 🍉 Watermelon DB, ⚡️ Supabase, 🔥 Firebase, 🐘 Postgres, 📄 TypeORM, ➡️ Doctrine, ⚪ DynamoDB/PartiQL, 🔴 Oracle, 🅲 CoreData, 🟣 Realm.
Cloud Computing: 🐳 Docker, ☸️ Kubernetes, ☸️ Google Kubernetes Engine, 🌊 DigitalOcean Cloud, 🅷 Heroku, 🆁 Render.com, ☀️ Netlify, 🅰 Microsoft Azure.
I have developed over 20 iOS apps, 15 React Native apps, several Android apps, APIs for some of them, over 20 websites.
I'm proficient in problem-solving and have solid track record of success in solving complex problems for teams that have struggled to do so on their own.
I like to explore modern technologies, build amazing user interfaces, develop software of any complexity. I always strive to create apps and sites according to the best practices, thoroughly test them and provide the best user experience. It's important to me to write clean and readable source code which is easy to understand and maintain for any other developer.
Work history
Work history
Mobile app MVP: bring data, AI & tech to home care
Jan 4, 2024
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Mar 12, 2025
"Alex is super professional and gets stuff done. He was instrumental in the success of MVP product."
Private earnings
React developer
Jan 24, 2023
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Mar 4, 2025
"Aliaksandr completed the project as expected. Communication was smooth, and we appreciate his efforts. We will working with him again in the future on a new project."
Private earnings
PHP & JavaScript Developer for User Tracking and API Event Integration (GA4, Meta, Google Ads)
Feb 19, 2025
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Feb 27, 2025
Private earnings
React Native, Expo, ReactJS consulting on our planned app stack selection
Feb 22, 2024
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Dec 17, 2024
Private earnings
FFR Application
Feb 10, 2024
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Sep 21, 2024
"Completed this project efficiently and exactly according to guidelines. I made additional requests midway of the project which resulted in the project's extension. Otherwise, it was nice working with Aliaksandr…
Private earnings
Mobile Development Overhaul
5.0
of 2 reviews
Feb 1, 2024
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May 2, 2024
5.0
"Aliaksandr is a professional programmer with a great set of skills. He is very honest and very cooperative with meeting your demands. Communication will never be a problem with him…
Private earnings
SWIFT app developer
Apr 11, 2023
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Feb 3, 2024
"Completed project as desired. May revisit this project again when updates are implemented. Thank you."
Private earnings
FullStack Developer to join our team (SaaS)
Nov 5, 2023
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Dec 6, 2023
"Great work!"
Private earnings
Expo / React Native Developer
Jan 2, 2023
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Jun 21, 2023
Private earnings
React Native Mobile App Developer / Part-time
Mar 23, 2021
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Feb 3, 2023
"Aliaksandr is highly skilled and responsible professional with solid understanding of system design and tools. He is always ready to jump into a problem and you could count on him…
Private earnings
CircularPET App Development
May 16, 2025
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Present
Job in progress
Private earnings
Website development - fixes and new features
Apr 30, 2025
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Present
Job in progress
Private earnings
Swift iOS Developer
Feb 24, 2025
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Present
Job in progress
Private earnings
Full Stack React Native for Mobile Application
Feb 17, 2025
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Present
Job in progress
Private earnings
Senior Full-Stack React Native Developer for Mobile Application
Nov 6, 2024
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Present
Job in progress
Private earnings
iOS app developer
Sep 30, 2024
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Present
Job in progress
Private earnings
Full stack developer for caregiving solution
May 3, 2024
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Present
Job in progress
Private earnings
Software development - Event Ticketing Site
Apr 22, 2024
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Present
Job in progress
Private earnings
React Native Mobile Developer
Sep 20, 2023
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Present
Job in progress
Private earnings
React Native Dev Needed to Join a Small Team
Aug 4, 2023
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Present
Job in progress
Private earnings
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Skills
Skills
- Hybrid App Development
- Objective-C
- Swift
- PHP
- Java
- MongoDB
- React Native
- Firebase
- API Integration
- iOS Development
- Laravel
- Database Development
- Yii
- UX & UI