About me

I am a passionate technology enthusiast with a strong analytical foundation, holding a Bachelor’s degree in Mathematics and a Master’s degree in Computer Science. My journey in software development has been driven by curiosity and a desire to apply technology to solve meaningful problems. I have hands-on experience in programming with C#, building applications, and improving software processes, and I enjoy exploring how different technologies can be combined to create efficient and innovative solutions.

I thrive in environments that challenge me to learn and grow, constantly seeking to expand my knowledge in software development, testing, and emerging technologies. Analytical thinking and creativity guide my approach to problem-solving, allowing me to tackle both technical and conceptual challenges, optimize workflows, and design solutions that are reliable, scalable, and deliver real value, while combining technical expertise with curiosity and a drive for continuous improvement.

MY EDUCATION

CARDINAL STEFAN WYSZYNSKI UNIVERSITY IN WARSAW

Site Web

University College of Enterprise and Administration in Lublin

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Certifications

CURRENT PROJECTS AND DEVELOPEMENT

Exploring the Potential of Unity and VR for Creating a Medical Suturing Simulation

Standalone medical VR application developed in Unity for Meta Quest devices, designed to teach and refine surgical suturing skills in an immersive virtual environment. The simulation features a highly realistic deformable skin model with advanced shaders, directional needle-tip interaction, and entry/exit point tracking. Physics-based deformation mimics the force and angle of puncture, ensuring authentic responses to user input.

Users interact with surgical tools such as needles, sutures, and forceps in a risk-free environment that closely replicates real-world procedures. The system guides users through all steps of the suturing process-from wound preparation to needle handling and knot tying-with integrated physics ensuring realistic tool-tissue interactions. Multiple training modes support progression from guided tutorials to complex techniques.

The application includes a built-in assessment system for tracking precision, movement accuracy, and procedural correctness. Developed with modular, testable architecture, the project supports scalability and includes an extensive Edit Mode unit testing suite. Performance is optimized for standalone VR headsets, making it ideal for real-time training scenarios in clinical education.

In addition to its training capabilities, the simulation also serves as a practical study of Unity’s potential for creating high-fidelity medical simulations, demonstrating how the engine can be leveraged to meet both technical and educational demands in the medtech field.

Video 1 (online-video-cutter.com).mp4

Nagrywanie 2025-04-01 194149.mp4

VID-20250520-WA0001(1) (online-video-cutter.com).mp4

hospital.mp4

Repository

GitHub

American & Chinese Kitchen VR Environments

Two standalone Unity VR applications developed for Meta Quest headsets, focused on realistic kitchen interior simulations with interactive elements. The projects involved complete interior design layouts, user interaction scenarios, and observation of user behavior while operating embedded appliances. I created and implemented C# scripts to handle interactive systems, UI, and logic flow. Particular emphasis was placed on scene optimization for VR, including light baking, texture atlases, LODs, and shader adjustments to maintain smooth performance at 70+ FPS. These simulations served both for showcasing architectural design and for evaluating the usability of virtual appliances in immersive environments.

Video from jrkewelina@gmail (online-video-cutter.com).mp4

American Kitchen Repository

GitHub

Video from jrkewelina@gmail (1) (online-video-cutter.com).mp4

Chinses Kitchen Repository

GitHub

3D Arena Builder (ongoing)

The 3D Arena Builder is a prototype multiplayer VR application created in Unity, demonstrating a modular and testable client-server architecture using WebSocket communication. The Unity client connects to a Node.js server via secure WebSocket and exchanges real-time JSON messages for player identification, movement, and chat. The project features a decoupled architecture with interfacebased design (INetworkService) and uses unit tests with mocking to ensure component correctness. The player’s session is managed via persistent playerID, stored locally to support reconnections. This project showcases skills required for the PeriVision role: modular Unity development, WebSocket-based client-server communication, and automated testing strategies.

Repository

GitHub

Echo Room - simulator

The application serves as a simulator for echo reduction in office spaces. Its main function is to create room layouts along with their constructional elements, including acoustic panels, and to assess the ratio of total absorbing surface area to room surface area. Additionally, it allows users to experience a virtual walk-through in the created office and hear the difference in sound reverberation.

The simulator was developed in collaboration with Apico SA, involving a team consisting of a musician, graphic designer, project coordinator, client, and testers. My role at every stage of development was to determine client requirements, system design, implementation, testing, deployment, and documentation creation.

A unique feature of this project is the implementation of sound reverberation, which required special attention from a legal perspective. Web browsers employ their own sound management policies, which the application must adhere to. Additionally, an interesting aspect is the relationship between the level of reverberation and the ratio of panel surface area to room surface area.

The aim of the application is to visualize the assembly before carrying out the order, improve communication with interior designers, eliminate the need for hand-drawn room sketches, and provide a quick and accurate assessment of the minimum required absorbing surface area.

Repository

GitHub

Unity Platform

Unity Play

Team work

The documentation consists of two parts: the Project Design Document, which specifies the basic requirements of the client for the application, and the Project Plan, which is worked on and accessible to the entire team working on the project. The Project Plan is updated after each meeting based on meeting notes.

CattingOverIt

"CattingOverIt" is a touching and innovative adventure game where the player takes on the role of a cat, whose mission is to help its owner overcome depression. Through various interactions and activities, such as playing mini-games, the player helps their owner regain joy and peace of mind.

The game was created during the 9th edition of the Swiss Game Academy, a week-long intensive course where participants, divided into small teams, work on creating a game. A group of newly acquainted enthusiasts combined their skills and talents to realize this unique project in just one week.

Working on "CattingOverIt" was not only an opportunity to create a valuable game but also a chance to develop teamwork skills. Effective collaboration, clear communication, and task sharing were essential, providing valuable insights into team dynamics and improving problem-solving abilities.

The game won the Audience Award at this year's Swiss Game Academy, a testament to its exceptional impact on players and the recognition of the team's hard work.

Repositiory

GitHub

Unity Platform

Unity Play

Lottery Lotto - simulator

The game is a simulator of a popular lottery game, in which the player can draw 6 numbers from the range of 1 to 42, according to the rules of a real lottery. The player can go through the entire game cycle, restart it, or pause it during gameplay. After drawing all the balls, the lottery results are displayed in ascending order.

This is an independent project in which I created a game studio in a 3D space, a drawing machine, and balls with textures corresponding to their numbers. The implemented functionalities include:

Routines counting down the time to shuffle the balls and start drawing numbers,
User interface elements controlled through scripts, such as text fields, buttons, sliders,
Game scenario: Start, Pause, Restart,
Selection Sort algorithm for sorting the drawn numbers of balls.

Repositiory

GitHub

Unity Platform

Unity Play

Unity Junior Programmer Pathway Projects

While the Unity Junior Programmer course, I utilized various game mechanics, including, among others:

LateUpdate() - The camera follows the player and sustains smoothness of movement,

Camera switch - On player command camera is switched to the hoodCamera or the frontCamera view,
Multiplayer - According to Player ID, each player is assigned to side of screen.

Customized instantiation of enemies and projectiles,

Game scenario: life rate, gaining score events, losing life events, game over,
Game mechanics: shooting delay and enemy health bars.

Unity Platform

Unity Play

Sprite - seemingly endless,
2.5D - 3D models applied into 2D scene with side view camera,
Animator Controller - animations handling according to player behaviour,
Particles Effects - coordinated with player moving state,
Sound effects - background music and sound effects on events (jumping, falling).

Repositiory

GitHub

Unity Platform

Unity Play

Data persistence between scenes with DontDestroyOnload,
Data persistence between sessions with JSON files (Save and Load methods).

MY FAVOURITE BOOKS

Google Sites

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