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https://github.com/rumax/rumax


https://github.com/rumax/rumax

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README 

          
# Hi, I'm Maksym Rusynyk 👋



**Senior Software Engineer | Mobile & Cross-Platform Apps | Reliability & Automation**



📍 Netherlands



I design and build **production mobile and web applications** used in regulated environments such as banking.

My focus is on delivering **stable, secure, and maintainable systems** while simplifying complex technical problems.



---



## What I Do



I help teams:



- Build reliable mobile applications for **iOS and Android**

- Improve **application stability and monitoring**

- Implement **CI/CD automation and DevOps pipelines**

- Refactor and modernize complex legacy systems

- Increase **engineering quality through testing and clean architecture**



---



## Tech Stack



### Mobile



[![Flutter](https://img.shields.io/badge/Flutter-02569B?style=flat&logo=flutter&logoColor=white)](https://flutter.dev)

[![React Native](https://img.shields.io/badge/React_Native-20232A?style=flat&logo=react&logoColor=61DAFB)](https://reactnative.dev)

[![Android](https://img.shields.io/badge/Android-3DDC84?style=flat&logo=android&logoColor=white)](https://developer.android.com)

[![iOS](https://img.shields.io/badge/iOS-000000?style=flat&logo=apple&logoColor=white)](https://developer.apple.com/ios)



### Languages



[![JavaScript](https://img.shields.io/badge/JavaScript-F7DF1E?style=flat&logo=javascript&logoColor=black)](https://developer.mozilla.org/en-US/docs/Web/JavaScript)

[![TypeScript](https://img.shields.io/badge/TypeScript-3178C6?style=flat&logo=typescript&logoColor=white)](https://www.typescriptlang.org)

[![Dart](https://img.shields.io/badge/Dart-0175C2?style=flat&logo=dart&logoColor=white)](https://dart.dev)

[![Flutter](https://img.shields.io/badge/Flutter-02569B?style=flat&logo=flutter&logoColor=white)](https://flutter.dev)

[![Kotlin](https://img.shields.io/badge/Kotlin-7F52FF?style=flat&logo=kotlin&logoColor=white)](https://kotlinlang.org)

[![Swift](https://img.shields.io/badge/Swift-F05138?style=flat&logo=swift&logoColor=white)](https://developer.apple.com/swift)

[![HTML5](https://img.shields.io/badge/HTML5-E34F26?style=flat&logo=html5&logoColor=white)](https://developer.mozilla.org/en-US/docs/Web/HTML)

[![CSS3](https://img.shields.io/badge/CSS3-1572B6?style=flat&logo=css3&logoColor=white)](https://developer.mozilla.org/en-US/docs/Web/CSS)



### Engineering



[![Azure DevOps](https://img.shields.io/badge/Azure_DevOps-0078D7?style=flat&logo=azure-devops&logoColor=white)](https://azure.microsoft.com/services/devops/)

[![CI/CD](https://img.shields.io/badge/CI/CD-Automation-blue)](https://en.wikipedia.org/wiki/CI/CD)

[![Testing](https://img.shields.io/badge/Test_Automation-important)](https://en.wikipedia.org/wiki/Test_automation)

[![Monitoring](https://img.shields.io/badge/App_Monitoring-Sentry-orange)](https://sentry.io)



---



## Experience



Currently working at **ING Wholesale Banking**, building mobile and web solutions for regulated financial environments.



Previously:



- Delivered **Flutter mobile apps** for Android and iOS

- Built **React Native investment applications** used in the Netherlands and Belgium

- Owned mobile platform stability, monitoring, releases and CI/CD pipelines

- Improved production reliability to **99.99% application stability**



---



## Mobile Apps



📱 Published cross-platform mobile applications and development experiments (available on Android):



- [CarLedger](https://play.google.com/store/apps/details?id=com.rumax.myauto) – personal project demonstrating architecture & mobile engineering

- [Other apps on Google Play](https://play.google.com/store/apps/developer?id=rumax)



---



## Speaking & Writing



🎤 **ING Mobile Conference 2024** — Cross-Platform Development for Mobile Apps

🎤 **InvestiCon 2019** — Developing ING Investing Cross-Platform App



✍ Technical articles published on

• [Medium](https://medium.com/@m.rusynyk)

• [ITNEXT](https://itnext.io)

• [DailyJS](https://medium.com/dailyjs)

• [ING Tech Blog](https://medium.com/ing-blog)



---



## Interests



- Clean architecture

- Engineering automation

- Application reliability

- AI-assisted development

- Simplifying complex systems



---



## Connect



[![LinkedIn](https://img.shields.io/badge/LinkedIn-Maksym_Rusynyk-blue?style=flat&logo=linkedin)](https://linkedin.com/in/maksymru)

[![Medium](https://img.shields.io/badge/Medium-Articles-black?style=flat&logo=medium)](https://medium.com/@m.rusynyk)

[![NPM](https://img.shields.io/badge/npm-rumax-red?style=flat&logo=npm)](https://www.npmjs.com/~rumax)

[![Email](https://img.shields.io/badge/Email-Contact-red?style=flat&logo=gmail)](mailto:m.rusynyk@gmail.com)



---



## Featured Projects & GitHub Stats



### GitHub Stats



![GitHub Stats](https://github-readme-stats.vercel.app/api?username=rumax&show_icons=true&hide_title=true&count_private=true&theme=radical)



### Most Used Languages



![Top Languages](https://github-readme-stats.vercel.app/api/top-langs/?username=rumax&layout=compact&theme=radical)



### Highlighted Repos



Some of my key projects that demonstrate **impact, reliability, and engineering ownership**:



| Project                                                                                                                                                                       | Description                                                          |

| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------- |

| [react-native-PDFView](https://github.com/rumax/react-native-PDFView) ![Stars](https://img.shields.io/github/stars/rumax/react-native-PDFView?style=social)                   | A React Native component for rendering PDF documents efficiently     |

| [react-native-PixelsCatcher](https://github.com/rumax/react-native-PixelsCatcher) ![Stars](https://img.shields.io/github/stars/rumax/react-native-PixelsCatcher?style=social) | Utility for capturing pixel data from views for testing or analytics |

| [react-native-SaveView](https://github.com/rumax/react-native-SaveView) ![Stars](https://img.shields.io/github/stars/rumax/react-native-SaveView?style=social)                | Save React Native view as an image, useful for snapshots and reports |



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💡 _I enjoy building solutions that improve reliability, simplify complexity, and help teams deliver better software._