Portfolio 2026

HelenaKosmajac

Artist who codes. Engineer who draws.

CS student at Toronto Metropolitan University: Building software while exploring the intersection of art and technology.

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01

About Me!

Growing up between music conservatories and computer labs, I learned early that precision and expression come from the same impulse.

I study Computer Science at Toronto Metropolitan University with a fascination for low-level systems, assembly, and anything that lives close to the machine.

Outside of code, I express myself through photography, mixed media, anything that rewards patience and a sharp eye. The two practices feed each other more than people expect.

Currently
3rd Year Computer Science
University
Toronto Metropolitan University
Background
Music & Art
Focus
Systems + Design
02

Stack

Web & Frontend
HTML / CSSAdvanced
JavaScriptBasic
TypeScriptBasic
ReactBasic
Low-Level & Systems
CIntermediate
C++Basic
AssemblyAdvanced
Bash / ShellAdvanced
RustBasic
High-Level
PythonAdvanced
JavaAdvanced
LispExperienced
HaskellBasic
ElixirBasic
03

Projects

001
Uber Simulation
Java OOP Systems
002
Live With Ease
HTML/CSS JavaScript Web
003
Spendly — Budget Manager
Python Finance Coming Soon
04

Experience

Apr 2025 - Present Part-time
Python & Java Instructor
WizRobotics
  • Prepared students with the technical programming skills necessary to compete in the Canadian Computing Competition (CCC) and First Robotics Competition (FRC).
  • Taught various programming curriculums, starting with basic syntax and building up to advanced concepts such as OOP, Data Structures, and Algorithms
  • Created interactive code-alongs and personalized tests, adapting to each students preferred learning style.
Sept 2025 - Dec 2025 Internship
Cell Manufacturing Controls Engineer
Tesla
  • Independently designed and partnered with leading engineers to implement new devices and control solutions, including a compressed air cleaning system that eliminated machine errors and reduced process contamination by 35%, improving uptime and product quality.
  • Designed and optimized control systems for Tesla’s cell manufacturing lines using Structured Text, Python, and C++, increasing automation reliability and production efficiency.
  • Developed software tools to monitor manufacturing data, showcasing adaptability and a drive for solving complex challenges in a cutting-edge environment.
Apr 2024 — Sept 2024 Freelance
AI Trainer - Coding and Mathematics
DataAnnotationTech
  • Enhanced AI chatbot performance by refining responses using Python and JavaScript, achieving a 25% improvement in NLP accuracy through detailed feedback and iterative problem-solving.
  • Applied CS fundamentals to analyze linguistic datasets for NLP model development, reducing error rates by 18% through high-quality annotations and data evaluation
  • Collaborated with AI teams to implement feedback loops, demonstrating adaptability across programming languages like C++ and Java.
05

Contact

Reach out, learn more!

Open to internships, collaborations, and interesting conversations about code, art, or the overlap between the two.