Ealam Taher

Self-taught full-stack developer who designed, built, and commercially deployed FastPOS — a production-grade, multibranch Point of Sale and ERP system serving Iraqi retail businesses. The system spans 13 modules, a 50+ table PostgreSQL schema with double-entry bookkeeping, dual-currency (IQD/USD) support, EF Core Migrations, and a self-contained Windows deployment pipeline. Comfortable owning an entire product from schema design through React UI to client installation — and debugging it when it breaks in a live shop.

Independent Software Developer at FastPOS (2025-04 – Present)

Sole developer of FastPOS, a full-stack POS/ERP system deployed to commercial retail clients in Kirkuk, Iraq.

• Designed a 50+ table PostgreSQL schema supporting multi-branch inventory, dual-currency ledger (IQD/USD), double-entry bookkeeping, supplier/customer credit, loans, and stocktakes.
• Built a 4-project ASP.NET Core 8 backend (Domain / DataAccess / Business / API) with EF Core Migrations, race-safe invoice numbering via Postgres sequences, and a 13-check health script.
• Developed the React/TypeScript/Vite frontend: POS cashier screen, 13 business modules, and reports-style invoice printing at 80 mm thermal width with full RTL support.
• Implemented a complete data-migration pipeline: parsed a 1,038-item MySQL dump, derived opening stock from 22,000+ historical sale lines, and emitted a transactional PostgreSQL import script.
• Packaged FastPOS as a self-contained Windows exe (no.NET runtime required), registered as an NSSM service for auto-start, with Kestrel serving the React SPA from wwwroot — single process, single port.
• Diagnosed and fixed a pervasive dual-currency bug class: money values stored in one currency, read as another, affecting supplier/customer balances, profit reports, EOD summation, and loan installments.
• Commercially deployed to a first client (Dlko Vape, Kirkuk) including full data migration from the legacy system, barcode reconciliation, and live training.

Diploma in Measurement & Control – Kirkuk Oil Training Institute (2024)

High School – Qadam Kher High School (2022)