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16 followers · 8 following

Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx4Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex3Achievement: Pull Sharkx4Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Highlights

  • Pro

Organizations

@STEKRA-Apps @labeltech-dev @hiero-ledger @Quantum-Resistant-Identity-Labs

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Harasz/README.md

👋 Hi, I’m a Senior Software Engineer — Node.js & TypeScript

I build scalable, high‑performance backends focused on reliability, security, and maintainability.
From APIs and data platforms to cloud infra and full‑stack apps — I ship production‑ready solutions across domains, including e‑commerce, fintech, SaaS, and web3. 🚀

⚙️ What I work with

  • Backend: Node.js, TypeScript, Express, REST, GraphQL
  • Frontend: React, Next.js, Tailwind CSS, Vite
  • Data & Messaging: PostgreSQL, MongoDB, Redis, RabbitMQ / Kafka
  • Cloud & DevOps: Docker, Kubernetes, CI/CD, IaC
  • Architecture: Microservices, Event‑Driven, DDD
  • Quality: Testing, Performance, Observability

🧰 Tools & Tech

Node.js TypeScript Express.js GraphQL PostgreSQL Redis Kafka Docker Kubernetes GitHub Actions React Next.js TailwindCSS Vite

✍️ Publications & Articles

🎓 Academic

  • Emotion Recognition from Tweets — CEUR Workshop Proceedings http://ceur-ws.org/Vol-3092/p07.pdf
  • Efficiency of information transfer in computer systems. Comparative analysis for different natural languages — Scientific Papers of Silesian University of Technology http://dx.doi.org/10.29119/1641-3466.2024.213.1

🏭 Industry

  • How to build a React and Node custom Shopify app using Shopify CLI
    https://gorrion.io/blog/how-to-build-a-react-and-node-custom-shopify-app-using-shopify-cli/
  • Boost your sales with Shopify Apps
    https://gorrion.io/blog/boost-your-sales-with-shopify-apps/
  • Which e‑commerce platform should you choose in 2022?
    https://gorrion.io/blog/which-ecommerce-platform-should-you-choose-in-2022/

📊 GitHub at a glance

Stats Top Langs

🤝 Let’s connect

Visitors

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  1. crypto-api crypto-api Public

    Demonstration cryptography API created using the Nest.js framework.

    TypeScript 1

  2. turbo-adventure turbo-adventure Public

    TypeScript

  3. eventelo eventelo Public

    Communicate React components using event-based hooks.

    TypeScript 3

  4. use-async-modal use-async-modal Public

    Show promised based modal programmatically using hook for React.js.

    TypeScript 5

  5. simple-blockchain simple-blockchain Public

    Forked from SzymCwy/simple-blockchain

    Python

  6. An attempt in Node.js to create a si... An attempt in Node.js to create a simple example of how Bitwarden works under the hood. Based on [Bitwarden Security White Paper](https://bitwarden.com/help/bitwarden-security-white-paper/)
    1 
    import {
    2 
      createHmac,
    3 
      createCipheriv,
    4 
      createDecipheriv,
    5 
      randomBytes,