Digital Advertising – Eastern
Developer, January 2025 – Present
Project description
- The client's web application is a platform that allows lower-budget and less tech-savvy users to launch programmatic advertising campaigns for their political efforts via a modern, clean and simple user interface that connects (via API) to their existing enterprise Demand Side Platform (DSP’s) and automates nearly all of the real-time-bidding (RTB) trading process.
Responsibilities
- Developing and optimizing features, addressing technical issues, and performing regular maintenance tasks related to third-party integrations – Demand Side Platforms (Basic, Stack Adapt).
- Managing the deployment process of all system environments (including DEV, UAT and PROD).
- Conducting code reviews and ensuring best practices for scalability and performance.
Technologies
- Programming languages/frameworks: C#, .NET 6 for the back end, ReactJS 16 for the front end.
- Software architecture: N-layer
- Deployment: Windows server, IIS
Cleaning Service and HRM Web System – Australia
Developer, March 2024 – December 2024
Project description
- Provides modules that allow ordering Cleaning Services.
- Provides modules to manage employees/users from Customers and Providers.
- Integrate with various third-party services (e.g.: Employment Hero Payroll API, CorrigoPro Direct AP) for larger project development in Australia and globally.
Responsibilities
- Integrating with the new third parties (Employment Hero Payroll API, CorrigoPro Direct API).
- Building a new development server to host the project for developers (set up Jenkins, IIS, MSSQL, SSL)
- Implementing new features, resolving bugs and issues, and maintaining features.
- Managing the deployment process of UAT and DEV environments.
Technologies
- Programming languages/frameworks: C#, .NET Core 3.1 for the back end, JavaScript, and jQuery for the front end.
- Software architecture: N-layer
- Deployment: Windows server, IIS, Jenkins
ERP Web System – Viet Nam
Leader & Developer, August 2021 – March 2024
Project description
Provide an ecosystem (14 systems) to manage all the company's processes, including:
- Identity: Implement Single Sign-On (SSO) with Identity and Two-Factor Authentication (2FA) to comply with ISO 9001 standards for secure login functionality.
- Employee management: Handle all employee information, including contracts, positions, personal details, skills, and resignations. Generate reports on Skills - Proficiency, and Positions.
- Timesheet management: Oversee timesheets, roster shifts, and employee efforts. Facilitate resource booking, planning, and requests for projects. Generate reports on Project Effort and Performance.
- Leave management: Administer leave and work-from-home requests. Integrate with timekeeping systems for accurate check-in and check-out data. Provide APIs for monthly payroll penalty calculations.
- Project and profit management: Manage projects and their profitability. Generate reports to monitor KPIs for each department.
- Payroll: Handle employee salaries efficiently and accurately.
- Recruitment: Create and manage recruitment campaigns. Automatically scan CVs from emails and process candidates through defined workflows. Generate KPI reports for the Talent Acquisition department.
Responsibilities
- Led a team (6-8 developers) to develop half of the ecosystem (6 systems).
- Researched, and transferred new technologies and services to teams, and applied to systems.
- Analyzed requirements and discussed with the team to find solutions and implement them.
- Resolved bugs and maintained large features, primarily hotfix tasks impacting employee salaries and managers' processes.
- Managed delivery process for all environments (Production, Staging, Development).
- Set up Verdaccio (local private NPM registry) for the Angular team and deployed it to Production.
- Supported team members and other teams by reviewing pull requests, codes, and solutions.
- Created a Git-flow diagram, deployment document, and toolkit API to retrieve tickets’ information from ClickUp for the development team. Migrated the old staging server to a new server with a detailed plan (defined What, When, Where, Why, How; collaborated with my manager and IT department).
- Worked as a Full-stack developer (C# - Angular)
Technologies
- Programming languages/frameworks: .NET Core 3.1 for Back-end, Angular for Front-end (additional: ReactJS, NodeJS, Java)
- Software architecture: N-layer, Clean Architecture
- Deployment: Windows server, IIS, Jenkins, Tomcat, PM2, Linux, Docker, K8s.
- Database: SQL Server, MySQL
Virtual machine management app – England
Developer, December 2021 – January 2022
Project description
- Manage and collect information on Virtual machine servers including Linux, Windows, and Solaris.
- Report the performance of their Virtual machine servers.
Responsibilities
- Implemented a new feature to import compressed files/folders and create reports based on it.
- Raise bugs and issues to the client and fix them.
- Presented and supported delivery for the client.
Technologies
- Programming languages/frameworks: C#, WPF, .NET Framework v4.6.1.
- Software architecture: N-layer.
Tracking maps web – Australia
Developer, February 2022 - March 2022
Project description
- Tracking maps from multiple select locations, get the postal code of all.
Responsibilities
- Implemented a new CRUD for the runsheet.
- Enhanced old features to track locations/regions.
- Deployed a new version to the client’s production.
- Worked as a Full-stack developer (C# - ReactJS).
Technologies
- Programming languages/frameworks: C#, .NET Core 3.1 for Back-end, ReactJS for Front-end.
- Software architecture: N-layer.
