Hossam Moustafa

Backend-focused Software Engineer with 2+ years of experience building scalable APIs and business-critical systems in fintech and enterprise domains. Strong in NestJS, TypeScript, databases, and backend architecture, with practical frontend experience in React and Next.js. Looking to grow in backend engineering while continuing to work across the stack when needed.

Software Engineer at Wexcute (2024-07 – Present)

• Built the end-to-end merchant onboarding flow (multi-step business/document forms, validations, country/currency master data) across server and client.
• Implemented merchant draft lifecycle: resume-draft, 30-day draft retention, delete-in-draft, and admin "request changes" review workflow.
• Developed the audit-events API and user-activity tracking, surfaced in the portal via a real-time notifications dropdown over Server-Sent Events (SSE).
• Implemented merchant search, bulk status updates, and branch management (add/update/delete branches, bank accounts) in the back-office portal.
• Implemented the full RBAC layer: roles and permissions CRUD, CASL-based auth guard, role-to-admin assignment tracking, and super-admin protection rules.
• Built admin lifecycle management: create/update/list/details, status and suspension handling, and bulk delete endpoints.
• Developed the payment-transaction pipeline: listing, processing, accept/reject of pending transactions, and bulk rejection.
• Added an SSE-based notification system publishing live transaction-status updates to clients.
• Modeled and shipped the charging-card store domain (entities, create/list/patch endpoints) and applied a reusable repository pattern.
• Built the outbound credit-transfer module (DTOs, service, controller) bridging a bank's core system to the PAPSS network.
• Implemented FX-rate modules: get rate, rate configuration details, and rate updates.
• Added participant lookup, transaction-status queries, and stop/resume/recall transaction functionality.
• Set up the service foundation: health-check module, MongoDB integration, and configuration.
• Built the finance domain: chart of accounts rendered as a tree, general-ledger entries, payment terms with credit durations, and fiscal-year/company modeling with overlap validation.
• Implemented multi-currency support with buy/sell rules and safeguards (e.g. currencies in use cannot be deleted).
• Developed role/permission management with a custom multi-role select component, custom sidebar, and user forms; extracted shared decorators into libraries.
• Optimized query performance in delete and listing logic (tree fetching, reduced query counts).
• Contributed reusable org-wide libraries published via Nx release and consumed across multiple products to standardize cross-cutting concerns.

Backend Developer at الخليج مهام-Mham (2024-05 – 2024-07)

• Contributed to the development of backend services for an e-commerce platform using Express.js.

Bachelor of Engineering in Civil Engineering – Suez Canal University (2018 – 2023)