.NET DEVELOPER

Contributed to the development and maintenance of large-scale CRM and enterprise systems for The University of Queensland (UQ) and University of Sydney (USYD) using .NET, ASP.NET Core, SQL Server, and Azure DevOps within Agile delivery environments.

Designed and developed responsive, accessible user interfaces using Angular, Knockout, SmartForm, JavaScript, HTML5, and CSS3, ensuring compliance with WCAG 2.0 AA+ standards and client-specific requirements.

Developed and maintained RESTful APIs, business logic and SQL Server database components, including stored procedures and performance tuning.

Collaborated with business analysts, testers and stakeholders to gather requirements, troubleshoot issues, and deliver scalable, high-quality solutions.

Participated in software testing, defect resolution and release activities, contributing to system reliability and continuous improvement initiatives.

SENIOR FULL STACK .NET DEVELOPER

Designed and developed a full-stack web application greencleaningservices.com.au using .NET Core MVC, C#, Entity Framework and SQL Server to manage customers, employees, and task allocation workflows.

Implemented core business features including user management, employee scheduling and task assignment, ensuring efficient operational workflow for the business.

Performed quality assurance testing, identified system issues and implemented fixes to improve usability and system stability.

Supported SEO improvements, e-commerce and website hosting management.

SENIOR FULL STACK .NET DEVELOPER

Developed and maintained key modules within a large-scale enterprise ERP system supporting IT, Human Resources, Finance, Accounting, CRM, Sales and Credit Management processes using .NET technologies and SQL Server.

Designed and developed core ERP modules including approval workflows, contract lifecycle management, e-invoicing, reporting dashboards, attendance management, vehicle booking, payment scheduling and financial reporting solutions.

Designed and implemented e-invoice digital signing system (XML/PDF) and integrated secure data exchange with Vietnam Tax Authority via API (JSON/XML).

Developed customer-facing portal ebill.chailease.com.vn for invoice and account management.

Provided API support for mobile application development teams.

Designed the main template for the ERP system. Integrated Highchairs, quick report.

Distributed knowledge of software development design patterns.

FULL STACK .NET DEVELOPER

Developed website jobfull.vn using .NET, C#, SQL Server.

Built internal systems including intranet services, FTP file management and lightweight server solutions.

Improved website visibility through SEO optimisation for targeted keywords.

Supported system deployment, hosting management and IT support.

FULL STACK .NET DEVELOPER

Developed e-Commerce platform flycampro.vn using .NET, C#, SQL Server.

Built internal sales and inventory management system.

Supported website operations, hosting and technical maintenance.