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Achievement: YOLOAchievement: Pair Extraordinairex2Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

Achievements

Achievement: YOLOAchievement: Pair Extraordinairex2Achievement: Pull Sharkx2Achievement: Arctic Code Vault Contributor

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@cpcdiu

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tahsiniftekhar/README.md

Hi, I'm Tahsin Iftekhar

Full Stack Software Engineer with 4+ years of experience building production-grade web applications.

Focused on backend system design, concurrency handling, and building reliable transactional systems.

🚀 What I’m Currently Building

Lynor — Scalable E-commerce System

  • Transactional order processing system with concurrency control
  • Preventing overselling using database-level consistency strategies
  • Exploring caching (Redis) and performance optimization
  • Designing fault-tolerant workflows for order and payment handling

🧠 Engineering Focus

  • Backend system design (Node.js, NestJS)
  • Concurrency & data consistency
  • API design & performance optimization
  • Database design & query optimization

🛠 Tech Stack

Backend: Node.js, NestJS, Express, PostgreSQL, MySQL
Frontend: React, Next.js, TailwindCSS
Tools: Docker, Git
Familiar with: AWS, Kubernetes

📌 Highlight Projects

🔹 Sneaker Drop — High-Concurrency Inventory System

  • Simulated concurrent purchase scenarios
  • Prevented race conditions in inventory updates
  • Ensured data consistency under load

👉 https://github.com/tahsiniftekhar/sneaker-drop

🔹 Lynor — E-commerce (In Progress)

  • Designing scalable order processing system
  • Handling concurrent transactions and system failures

📈 What I Care About

  • Building systems that don’t break under pressure
  • Writing maintainable and predictable code
  • Understanding trade-offs, not just using tools

📫 Connect

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