Senior Back-end Developer – Java

We're building an ERP system from scratch — and we need a Java engineer who treats financial precision as a non-negotiable.We are a Cairo-based technology company specializing in building enterprise-grade ERP and accounting software for small and medium-sized businesses. We design systems that are reliable, scalable, and fully compliant with regulatory requirementsRole OverviewWe are looking for a seasoned Java Back-End Developer to join our core team and help architect a comprehensive ERP system from Day 1. This is not a maintenance role — you will be involved in foundational architecture decisions, module design, and the technical choices that define the product for years to come. If you care about financial precision, clean architecture, and meaningful engineering work, this is the role for you.What You'll DoArchitect and develop core ERP modules: General Ledger (GL), Accounts Receivable, Accounts Payable, Inventory, HR & Payroll"Design and implement RESTful APIs consumed by the Angular frontend and external integrationsImplement financial calculation logic using BigDecimal — zero tolerance for rounding errorsBuild and maintain Spring Security layers: OAuth2, JWT, and role-based access controlDesign and optimize PostgreSQL schema for transactional financial data at scaleContribute to system architecture, API versioning, and technical decision-makingLead and participate in code reviews, upholding engineering and clean code standardsCollaborate with product and frontend teams to translate business needs into technical specsDebug, optimize, and upgrade existing modules as the product evolves