Mikołaj Płachta Email & Phone Number

Warszawa, Woj. Mazowieckie, Polska

Managing a mobile team responsible for the development of a mobile application for managing coworking spaces. Responsibilities the same as for the previous position plus:- setting development goals for members of the mobile team- overseeing the development of mobile applications in terms of technology

Warsaw, Masovian District, Poland

Development of mobile applications for managing coworking spaces (resource reservation, news, events, user support, community, access control, etc.) for iOS and Android platforms using the principles of Reactive Functional Programming, Dependency Injection and MVVM depending on the platform and: - work on rewriting iOS applications from Objective-C to Swift- implementation of a new UI with custom controls- automation of branding and deploying applications to stores using CI/CD processes… Show more Development of mobile applications for managing coworking spaces (resource reservation, news, events, user support, community, access control, etc.) for iOS and Android platforms using the principles of Reactive Functional Programming, Dependency Injection and MVVM depending on the platform and: - work on rewriting iOS applications from Objective-C to Swift- implementation of a new UI with custom controls- automation of branding and deploying applications to stores using CI/CD processes (Jenkins/fastlane) - integration with external service providers using their SDK or direct implementation of BLE / NFC solutions for building access control- writing unit tests and support in integration testing- partial management of mobile subteams- application distribution in mobile stores together with configuration of full CI/CD pipelinesUsed technologies: Objective-C, Swift, RxSwift, UIKit & Storyboard, Java, Kotlin, RxJava, Swinject, Dagger, Cocoapods, Fastlane, Jenkins, Firebase, BLE, NFC, Xcode, Android Studio Show less

Participation in a research project seeking detection methods for image steganography. The work on the project was linked to the research of a doctoral thesis, the purpose of which is to seek effective methods for detecting Internet threats using deep machine learning methods. The main responsibilities were:- literature analysis of available image steganography detection techniques- preparing the data used for research using steganographic algorithms into matrices from Matlab -… Show more Participation in a research project seeking detection methods for image steganography. The work on the project was linked to the research of a doctoral thesis, the purpose of which is to seek effective methods for detecting Internet threats using deep machine learning methods. The main responsibilities were:- literature analysis of available image steganography detection techniques- preparing the data used for research using steganographic algorithms into matrices from Matlab - developing of neural network models in different configurations of the number of layers, optimizers and activation functions using the Keras library- testing convolution layers and replacing them with advanced feature extractors like GFR, DCTR and PHARM- configuration of a test environment based on Ubuntu- preparation of a tool demonstrating the performance of the prepared neural network model in steganography detectionUsed technologies: Python, Keras, Tensorflow, scikit-learn, scipy, matplotlib, Matlab, C++ Show less

Warsaw, Masovian District, Poland

Creation and development of mobile applications for iOS and Android platforms that integrate the functionality of the sleep analysis mask with the user's phone. Applications were written in accordance with the rules of RFP, using patterns such as DI or MVVM. The applications were also natively integrated with a low-level library written in C++ via Swift and JNI. In addition to development work, support for internal tests, distribution of applications through the Fabric service for internal… Show more Creation and development of mobile applications for iOS and Android platforms that integrate the functionality of the sleep analysis mask with the user's phone. Applications were written in accordance with the rules of RFP, using patterns such as DI or MVVM. The applications were also natively integrated with a low-level library written in C++ via Swift and JNI. In addition to development work, support for internal tests, distribution of applications through the Fabric service for internal tests and to the store for general distribution. Three applications were developed:- Neuroon Open iOS - application for users of a sleep analysis mask, with modules for viewing extensive sleep statistics, profile management and creating alarms- Neuroon Research iOS - application for mask testers to collect data from sleep, having two modes of operation: preparation of the test program and conducting a study with data collection, an application designed to support two different view modes for iPhone and iPad- Neuroon Research Android - application for mask testers only for collect signals from this device Used technologies: Swift, RxSwift, UIKit & Storyboard, CoreData, RxBluetoothKit, Kotlin, RxKotlin&RxJava2, Swinject, Kodein, Cocoapods, SnapKit, Lottie, BLE, Xcode, Android Studio Show less

Warsaw, Masovian District, Poland

Development of mobile applications for iOS and Android platforms, support with internal and external tests at the client's site, contact with the client to determine the scope of the project and planned work, partial project management (separation of mobile / server-API tasks, etc.), requirements analysis and application distribution to Google Play / App Store, working with applications:- Gaspol Mobile - customer portal application for individual users, developing completely new version of… Show more Development of mobile applications for iOS and Android platforms, support with internal and external tests at the client's site, contact with the client to determine the scope of the project and planned work, partial project management (separation of mobile / server-API tasks, etc.), requirements analysis and application distribution to Google Play / App Store, working with applications:- Gaspol Mobile - customer portal application for individual users, developing completely new version of the application for iOS and Android platforms and subsequent minor rebranding changes- Gaspol Butle - application for individual users used to search for the nearest cylinder exchange points, implementation of new functionalities and creating a completely new rebranded version of the application- internal GRM Mobile project - customer portal for the GRM project on the Android platformUsed technologies: Objective-C, UIKit & Storyboard, CoreData, Java, GSON, ButterKnife, Google Play GCM, Maven/Gradle, Push Notification, CoreGraphic, CoreAnimation Show less

Warsaw, Masovian District, Poland

- work on relational database DB/2 on mainframe system AS/400- developing news system functionalities- fixing bugs- support on tests

Warsaw, Masovian District, Poland

Create website for order of external company written in PHP and HTML and using MySQL database, address of the website.

Doctor Of Science, Technical Computer Science And Telecommunication

Master Engineer (Mgr Inż.), Computer Science - Information Systems Engineering

Enginner (Inż.), Automation And Robotics - Industrial Computer Science