I build high-performance CLI tools and secure backend services, focusing on bridging terminal productivity with cloud-native architecture.

Production-Ready URL Shortener A high-concurrency service focused on distributed systems challenges like ID pre-allocation and shuffled security.

• Scalability: Range-based ID generation (DB segments) to minimize Redis network overhead.
• Security: LCG-shuffled IDs to prevent sequential scraping and protect business intelligence.
• DevOps: Full Dockerization, Makefile automation, and Flyway-managed schema migrations.

Context-Aware Command Runner for Zsh. Forgetting commands? Never again 😎
An interactive "Second Brain" for the terminal that turns cheat sheets into dynamic commands with fuzzy-search, placeholder injection, and dry-run protection.

Secure Note-Taking API. A production-ready vault for personal data with JWT-based auth, rate-limiting, PostgreSQL persistence, and Redis-backed caching.

High-Concurrency Backend Service A scalable URL shortening service leveraging Redis for global ID generation.

Unified System Dashboard. A modular command center for unifying hardware vitals, habits, and productivity metrics across macOS and Raspberry Pi.

• Languages: Kotlin, Zsh, Python, Bash
• Backend: Spring Boot, PostgreSQL, Redis, MySQL DevOps: Docker, Docker Compose, Gradle, Raspberry Pi OS CLI Tools: FZF, Bat, Ripgrep, Coreutils

• Integrating secretstash as the encrypted backend for howdo snippets.
• Building a central Pulse API for cross-device data sync.
• Refining my local-first cloud architecture on a Raspberry Pi cluster.

• 📧 Email: Tohidfla@Gmail.com
• 🖥️ GitHub: TohidHeshmati

“Building secure, modular systems—one terminal command at a time.”