Professional Summary

Passionate mobile and web developer with 5+ years of experience creating innovative applications. Specialized in React Native, Flutter, and modern web technologies. Strong focus on user experience, performance optimization, and clean code architecture. Proven track record of delivering high-quality solutions for startups and enterprise clients.

Work Experience
Jun 2024 - Present

Owner & Lead Developer

App Craft - Wojciech Biłka

Building custom mobile and web applications. Currently focusing on medical sector and public funding administration. Feel free to check my latest project: Esculap

Jul 2021 - Present

Full-Stack Developer

TDCM Sp. z o.o.

Leading mobile application development. Built cross-platform solutions using React Native and Flutter. Collaborated with designers and product managers to deliver user-centric features.

Apr 2021 - Jun 2021

Junior Software Developer

TDCM Sp. z o.o.

Building responsive websites and working on data processing and web scraping using JavaScript and Python. Contributed to various client projects.

Feb 2017 - Feb 2020

Junior Test and Validation Engineer

ZF Steering Systems Poland Sp. z o.o.

Conducted testing and validation for automotive systems. Collaborated with cross-functional teams to ensure product quality and reliability.

Skills & Technologies

Mobile Development

React NativeExpoFlutterSwiftKotlinGoogle Play ConsoleApple App Store Connect

Web Development

ReactNext.jsTypeScriptTailwind CSSFigma

Backend & Database

Node.jsFirebasePostgreSQLMongoDBAzure

Tools & Platforms

GitAWSVercelDocker
Projects

Maritime Logbook App

10 months

Developed a cross-platform mobile app for maritime professionals to record and manage sea service data. Implemented offline data sync, authentication, and in-app purchases.

React NativeFirebaseAuth0RevenueCatCrashlytics

Real Estate Video Automation App

8 months

Built a mobile app enabling real estate agents to instantly generate branded social media videos from property listings. Integrated Shotstack API and OpenCV for automated video rendering and image processing.

PythonAWSOpenCV

AI-driven Music Discovery App

7 months

Built a mobile app connecting music fans with emerging artists through AI-driven song recommendations and interactive swiping mechanics. Implemented authentication, media streaming, and artist profile management.

React NativeRuby on RailsHerokuAuth0RedisAWS

Series of Dictionary Apps

12 months

Built a series of mobile applications. Implemented features such as offline access and search functionality, and worked on complex UI setups due to the use of multiple fonts required for different dictionary languages.

React NativeFirebaseExpoSQLite

Music Education & Play-Along App

17 months

Built a mobile app enabling musicians to practice and improvise alongside professional jazz performers through dynamic backing tracks and interactive playback features. Implemented looping, tempo control, transposition, and multichannel mixing for realistic play-along sessions.

FlutterFirebaseSupabaseRevenueCat
Education

Master of Science in Automotion and Robotics

Cracow University of Science and Technology

2015 - 2017

Bachelor of Science in Automotion and Robotics

Cracow University of Science and Technology

2011 - 2015