
Worked on the ASE-UIT/congchungonline-be repository, delivering a robust suite of backend features for online notarization management. Over three months, developed and enhanced APIs for document verification, analytics, and blockchain-backed notarization, integrating technologies such as Node.js, MongoDB, and Express.js. Implemented wallet and NFT lifecycle management, streamlined approval and session workflows, and improved authentication and email services. Refactored core services for maintainability, modernized CI/CD pipelines, and enriched documentation. Addressed data aggregation, validation, and error handling to support reliable admin and user experiences. The work emphasized scalable architecture, secure integrations, and efficient data flows, reducing technical debt and supporting business growth.
December 2024 - ASE-UIT/congchungonline-be: A focused set of API enhancements, blockchain notarization capabilities, wallet/NFT lifecycle, and robust CI/CD/documentation improvements that deliver measurable business value and stronger engineering discipline. Highlights include Notary API enhancements with a Get Document endpoint, authentication refinements, and controller/service refactors; blockchain-backed notarization flow with Alchemy/Pinata config; wallet/NFT integration with minting fixes; approval history simplifications and improved session/file lifecycle management; and CI/CD modernization plus branding/documentation refresh.
December 2024 - ASE-UIT/congchungonline-be: A focused set of API enhancements, blockchain notarization capabilities, wallet/NFT lifecycle, and robust CI/CD/documentation improvements that deliver measurable business value and stronger engineering discipline. Highlights include Notary API enhancements with a Get Document endpoint, authentication refinements, and controller/service refactors; blockchain-backed notarization flow with Alchemy/Pinata config; wallet/NFT integration with minting fixes; approval history simplifications and improved session/file lifecycle management; and CI/CD modernization plus branding/documentation refresh.
November 2024 (ASE-UIT/congchungonline-be): Delivered core backend improvements to accelerate document verification and notarization workflows, strengthened data models, and enhanced communications. Key features include auto-forwarding of pending documents to verification and cron-driven session status updates; notarizations listing now includes status tracking and pagination; and comprehensive user/document model enhancements with richer JSON representations and document counts. Refactored session/notarization services and the email/notification system to improve reliability and developer experience. Implemented payment status retrieval, improved API documentation, and bolstered test infrastructure. Fixed critical issues in getAllNotarizations response status and header validation; added product-focused hardening through test cleanups and obsolete service removal. These changes collectively deliver faster, more reliable data access, better UX for auditors and end users, and reduced technical debt.
November 2024 (ASE-UIT/congchungonline-be): Delivered core backend improvements to accelerate document verification and notarization workflows, strengthened data models, and enhanced communications. Key features include auto-forwarding of pending documents to verification and cron-driven session status updates; notarizations listing now includes status tracking and pagination; and comprehensive user/document model enhancements with richer JSON representations and document counts. Refactored session/notarization services and the email/notification system to improve reliability and developer experience. Implemented payment status retrieval, improved API documentation, and bolstered test infrastructure. Fixed critical issues in getAllNotarizations response status and header validation; added product-focused hardening through test cleanups and obsolete service removal. These changes collectively deliver faster, more reliable data access, better UX for auditors and end users, and reduced technical debt.
October 2024: Delivered core backend enhancements for admin analytics, document history, and notarization workflows in ASE-UIT/congchungonline-be. Implementations focused on expanding reporting capabilities, enriching data with latest statuses, and increasing robustness of file uploads. These changes improved admin decision-making through period-based metrics and growth insights, reduced manual checks, and lowered maintenance overhead via targeted refactors.
October 2024: Delivered core backend enhancements for admin analytics, document history, and notarization workflows in ASE-UIT/congchungonline-be. Implementations focused on expanding reporting capabilities, enriching data with latest statuses, and increasing robustness of file uploads. These changes improved admin decision-making through period-based metrics and growth insights, reduced manual checks, and lowered maintenance overhead via targeted refactors.

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