Senior .NET full-stack developer - ERP & e-commerce integrations, AI automation (English, remote)

Belgium-based senior .NET developer: web apps and REST APIs in C#/ASP.NET Core, ERP and e-commerce integrations, Odoo, and AI/n8n workflow automation. Async-first, written communication in English.

• .Net9 J.
• ASP.NET5 J.
• Backend2 J.
• C#7 J.
• E-Commerce4 J.
• Enterprise Resource Planning4 J.
• Full-Stack
• Microsoft SQL-Server (MS SQL)9 J.
• Postgresql
• Schnittstellenentwicklung

Belgium-based software engineer building business software end to end: web applications and APIs in C#/ASP.NET Core with SQL Server or PostgreSQL, and integrations between systems that don't talk to each other.

Delivered work includes a modular web ERP (purchasing, sales, export, finance, warehouse), real-time sync between marketplaces (Trendyol, Hepsiburada, N11) and Netsis accounting with automated e-invoices and e-waybills, a PrestaShop pipeline to accounting and four carriers, PLC/SCADA data collection for a machining facility, and EveryTranslate, Rui Codex's own AI translation SaaS. Rui Codex also publishes its own apps and games on Google Play.

I also offer Odoo implementation and customisation, and AI/n8n workflow automation. I work async-first in writing (English, Turkish, basic Dutch), in short milestones. Work done inside a client's own system (their Odoo, webshop or app) stays there as source code they can use and modify; Rui Codex's own products and reusable components are licensed for use (a source-code buy-out can be quoted on request).

C#, ASP.NET Core, .NET, SQL Server, PostgreSQL, REST APIs, Azure, Docker, Python, Hangfire, OpenAI / Azure AI / Claude API, n8n, Odoo, PrestaShop, ERP integration, e-commerce integration, PLC/SCADA/Modbus, Android, Flutter, Firebase, AdMob