Citadel is a broad, modular ERP built to run an entire business. It ships full HRM, payroll, leave, recruitment, appraisals, double-entry accounting, CRM, project timesheets and inventory with barcode POS.
The interesting engineering is the module system: payment gateways, AI content generation, chat, Zoom, SMS and calendar sync compose onto a multi-tenant core without turning the platform into a tangle.
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Citadel ERP is the kind of product work I like: real operations, polished interfaces and software that teams can use without needing a tour every morning.