Corporate HR & Attendance Portal

The largest system I have built: an internal portal that covers the full employee lifecycle for a large organization. Attendance is collected from Hikvision turnstiles through a dedicated onboarding flow, then aggregated into per-employee and per-department monitoring views. Beyond attendance it carries an employee directory, org-structure management, an appeals workflow with multi-step approval, internal news and messaging, OAuth client management for integrating downstream systems, an audit log, and an analytics layer built on Highcharts. Around 30 distinct pages, each with its own role-based access rules. ONNX Runtime runs in the browser for on-device inference without sending data to a server.