Roee-Sivan - Builder

64 technologies

Tech stack

Grouped by what it is for, not by how impressive it sounds. Each row names the project it was shipped in; the few that name none came from coursework or an internship instead, and are marked as such.

By purpose

Six areas. Most of what is here is backed by a shipped project rather than a course exercise, and the rest is labelled honestly.

Languages

What I actually write day to day.

  • TypeScriptThe Block, Uni-Rate
  • JavaScriptNeon Highway, Hasidic Tower
  • C#The Block
  • PythonTable Tennis Analyzer, Teaching a Robot to Walk
  • JavaCoursework / work
  • CCoursework / work
  • SQLCoursework / work
  • HTMLCoursework / work
  • CSS / SCSSCoursework / work
  • GLSLCoursework / work

Real-time 3D & games

Engines, renderers and physics used to ship playable builds.

  • Unity 6The Block
  • Three.jsThe Block, Neon Highway
  • WebGLNeon Highway
  • Rapier physicsThe Block
  • Canvas 2DHasidic Tower
  • glTF / GLBNeon Highway
  • BlenderThe Block
  • Web Audio APINeon Highway, Hasidic Tower
  • WebAssemblyHasidic Tower

Web & full stack

Frameworks and services behind the production sites.

  • Next.js 16Uni-Rate
  • React 19Uni-Rate
  • App RouterCoursework / work
  • Tailwind CSSCoursework / work
  • SCSS ModulesUni-Rate
  • Node.jsCoursework / work
  • .NETCoursework / work
  • ViteThe Block
  • REST APIsCoursework / work
  • Server-Sent EventsCoursework / work

Data & backend

Persistence, auth and the services around them.

  • PostgreSQLUni-Rate
  • PrismaUni-Rate
  • SupabaseThe Block
  • SQLiteCoursework / work
  • OAuth 2.0Coursework / work
  • JWT / joseUni-Rate
  • ResendUni-Rate

AI & computer vision

Models and pipelines I have trained, hosted or called in anger.

  • YOLOv8Table Tennis Analyzer
  • UltralyticsTable Tennis Analyzer
  • OpenCVTable Tennis Analyzer
  • EasyOCRTable Tennis Analyzer
  • MediaPipeHasidic Tower
  • RoboflowTable Tennis Analyzer
  • PyTorchTeaching a Robot to Walk
  • Stable-Baselines3Teaching a Robot to Walk
  • GymnasiumTeaching a Robot to Walk
  • MuJoCoTeaching a Robot to Walk
  • Reinforcement learningCoursework / work
  • Genetic algorithmsCoursework / work
  • Neural networksCoursework / work
  • NumPyTeaching a Robot to Walk
  • MatplotlibTable Tennis Analyzer, Teaching a Robot to Walk
  • Gemini APIUni-Rate
  • MCPCoursework / work

Tooling & delivery

How the work gets built, checked and shipped.

  • GitCoursework / work
  • GitHubCoursework / work
  • VercelThe Block, Uni-Rate, Neon Highway, Hasidic Tower
  • ESLintCoursework / work
  • PrettierCoursework / work
  • VitestCoursework / work
  • PlaywrightCoursework / work
  • API testingCoursework / work
  • LinuxCoursework / work
  • BashCoursework / work
  • Claude CodeCoursework / work

Everything, alphabetically

  • .NET
  • API testing
  • App Router
  • Bash
  • Blender
  • C
  • C#
  • CSS / SCSS
  • Canvas 2D
  • Claude Code
  • ESLint
  • EasyOCR
  • GLSL
  • Gemini API
  • Genetic algorithms
  • Git
  • GitHub
  • Gymnasium
  • HTML
  • JWT / jose
  • Java
  • JavaScript
  • Linux
  • MCP
  • Matplotlib
  • MediaPipe
  • MuJoCo
  • Neural networks
  • Next.js 16
  • Node.js
  • NumPy
  • OAuth 2.0
  • OpenCV
  • Playwright
  • PostgreSQL
  • Prettier
  • Prisma
  • PyTorch
  • Python
  • REST APIs
  • Rapier physics
  • React 19
  • Reinforcement learning
  • Resend
  • Roboflow
  • SCSS Modules
  • SQL
  • SQLite
  • Server-Sent Events
  • Stable-Baselines3
  • Supabase
  • Tailwind CSS
  • Three.js
  • TypeScript
  • Ultralytics
  • Unity 6
  • Vercel
  • Vite
  • Vitest
  • Web Audio API
  • WebAssembly
  • WebGL
  • YOLOv8
  • glTF / GLB