Carlos Almonte

Software Engineer & Systems Architect

Venezuela [email protected] haarls.dev github.com/Haarls

Full-Stack Software Engineer focused on performance and systems-level architecture. Specialist in building fault-tolerant POS systems, desktop-native offline-first infrastructures (Rust/Tauri), and high-concurrency multi-currency financial architectures. Passionate about solving business bottlenecks with clean code and modern engineering.

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Technical Experience & Featured Projects

Software Architect Engineer | Razor Desktop POS 2023 - Present

  • Designed and programmed a native desktop POS system (Offline-First) using Rust and Tauri to evade critical network dependency in unstable retail environments.
  • Built an automated multi-currency engine from scratch that syncs BCV rates in the background, enabling legal and secure mixed payment operations.
  • Implemented SQLite in WAL mode, guaranteeing sub-millisecond atomic transactions and preventing database corruption during unexpected power outages.
  • Developed a satellite PWA for employees to track commissions and integrated real-time Push alerts for every register clear.
  • Orchestrated advanced cryptographic security via Hardware Fingerprinting for anti-piracy software licensing.

Full-Stack Developer | WilGo Parts (Custom POS) 2026 - 2026 (6 Months of Development)

  • Led the migration of a legacy system to a high-performance SPA architecture using React 19, Zustand, and NestJS.
  • Solved severe counter bottlenecks (zero-latency) by managing the cart state locally before committing to the PostgreSQL database.
  • Ensured financial integrity by creating two-way interceptors with CryptoJS to encrypt HTTP payloads, making network price tampering impossible.
  • Established live synchronization (mobile-first) enabling on-the-go sales and delivery invoicing with instant inventory adjustments.

Core Skills

Languages
Rust, TypeScript, JavaScript, SQL, HTML/CSS
Frontend
React 19, Astro, Tailwind CSS, Zustand, Framer Motion
Backend & DB
NestJS, PostgreSQL, SQLite (rusqlite), TypeORM
Architecture
Tauri (Desktop Apps), Offline-First, Microservices, RESTful APIs, End-to-End Encryption
Tools
Git, Vite, CryptoJS, jsPDF

Education

Software Engineering / Self-Taught

  • Continuous deep-dive education focused on developing critical systems, resilient architectures, and resource optimization.