invisal


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Hi, I am Visal, a software engineer currently based in Lisbon. I wrote my first program 27 years ago, and since then programming has always felt like a game to me—one big puzzle that rewards curiosity, experimentation, and patience. I am grateful to be able to make a living doing something I genuinely enjoy.

PROJECTS

JOURNEYS

  • Present - 2025
    Cloudflare
    Cloudflare
    System Engineer
  • 2025

    Move to Lisbon, Portugal
  • 2025 - 2024
    O
    Outerbase
    Full Stack Developer
  • 2024 - 2010
    L
    L192
    Chief Technology Officer
  • 2010
    M
    Manich Enterprises
    Software Engineer
  • 1999

    Start writing first line of code
  • 1989

    Born

INTERACTIVE ARTICLES

Algorithm tutorials with interactive demos and animations for clear, concise, and engaging learning experiences.

HyperLogLog

Coming Soon

Approximates distinct elements memory-efficiently using probabilistic hashing, merging easily, enabling fast cardinality estimates for large streaming datasets.

Places that I have traveled to.
❤️ Made with love by invisal