Developed and maintained a full-stack job portal using Next.js, React.js, and TypeScript, featuring a responsive mobile-first UI, REST API integration, multi-country support, and scalable architecture. Implemented secure JWT authentication, Bearer tokens, RBAC, Axios interceptors, automatic token refresh, and session management across multiple user roles. Engineered the HX Campus Dashboard with campus registration, bulk student onboarding, company collaboration, drives, events, and CRUD operations, along with Super Admin and Admin panels with zone-based access control. Built advanced job search and recruitment workflows, including filtering, pagination, resume search, job posting, applications, saved jobs, AES encryption, and localized country-based routing.

Developed scalable end-to-end e-signature workflows using Next.js, React.js, and TypeScript, covering documents, templates, multi-step forms, and draft management. Built interactive signing features with drag-and-drop PDF/image field placement, secure authentication, validation, progress tracking, and completion handling. Implemented role-based routing for Signers, CCs, and Approvers with sequential and parallel workflows, using diff-based payload updates to improve API efficiency. Engineered a centralized Axios API layer with token refresh, encryption/decryption, standardized error handling, and secure session management, supporting file conversion, dashboards, and audit trails.