ERP Application System
Developer - Team Lead, Nov 2023 – Present
Project description
- A system that is split into 14 sub-systems using microservice-like architecture to handle the business logic of many domains such as human resource management, recruitment, training, project management, sales/loss & profit, finance, etc.
Highlights
- Lead a sub-team with 4 developers with good performance
- Implement a complete redo of the entire role system to give users a more dynamic and granular control over the app
Responsibilities
- Develop and maintain system modules while also supporting stakeholders as a team leader
- Define project conventions, and review code quality of team members to ensure a less than 15% re-open rate
- Join meetings to analyze and clarify tickets, define unforeseen risks, and suggest solutions
- Support BAs on clarifying the requirements and writing tickets. Suggested changes to documents and tickets; ranging from minor to medium changes like grammar checks, wording improvements, and new logic implementations
- Perform refactoring on legacy sections to ensure readability and optimal query performance
- Use Serilog as the logging library to log events to Application Insights
- Use Hangfire server as the background scheduler
- Manage and configure Windows servers for application hosting
Technologies
- .NET Core, EF Core, Dapper, Angular, Hangfire, Serilog, Application Insights, MS SQL, Jenkins, AWS SNS/SQS
Field Team Operation Management System - Australia
Developer, Oct 2022 – Nov 2023
Project description
- A multi-tenant SaaS to help field teams connect and manage their operations. The software suite features real-time schedules, dynamic paperwork, live maps, along with workforce and asset management etc.
Highlights
- Led the refactor phase including conventions cleanup, DB queries tuning and google APIs service cost optimizations
Responsibilities
- Worked directly with stakeholders as a full-stack engineer to develop and maintain system modules
- Collected requirements and defined tickets on Jira
- Worked with other developers from the mobile team to integrate between mobile client and API server
- Used Firebase as the real-time messaging and notification service
- Used Serilog as the logging library to log events to files
- Used S3 to upload and retrieve paperwork and documents
Technologies
- .NET Core MVC, Angular, PostgreSQL, Firebase, Serilog, Google APIs, AWS S3, AWS Elastic Beanstalk, React Native
Car Management System– Japan
Developer, Oct 2021 – Oct 2022
Project description
- An MVC web application to help manage cars along with their owners’ profiles.
Highlights
- Helped teammates in translating documents, clarifying requirements and communicating with stakeholders to improve project performance by 27% in 6 months
Responsibilities
- Wrote unit test cases to ensure the average test coverage of 91% across the code base
- Communicated directly with Japanese clients via emails to clarify issues
- Communicated with team members to find optimal solutions
- Worked as a back-end developer in a team with 30+ members
Technologies
- .NET Core, Razor Pages, MS SQL, xUnit, Java Spring
CMS Web
Developer, May 2021 – Oct 2021
Project description
- A complete blogging website to help publish and manage information about the team's new projects.
Responsibilities
- Studied requirements, and contributed to the database designing process
- Handled the development of both the back-end and front-end side
- Implemented Redis as the database for distributed caching in the system
Technologies
- .NET Core, Razor Pages, SQL Server, Redis, Docker, Git
Employee Skills Management system
Developer, Jan 2021 – June 2021
Project description
- A website to help manage employees’ skills and suggest suitable candidates for the company’s projects.
Responsibilities
- Studied requirements, designed database, and developed the backend side using .NET Core 3.1
- Used Firebase as a Push Notification System to send real-time notifications between users
- Wrote basic and detailed design documents with ERD and management plans
- Worked as a back-end developer in a 3-member team
Technologies
- .NET Core, ReactJS, SQL Server, Firebase, Git
Healthcare Project - Japan
Developer, Sep 2019 – Jan 2020
Project description
- A desktop healthcare app to help track patients’ blood pressure.
Responsibilities
- Learned about desktop application development
- Fixed bugs and wrote documents related to the project
- Experienced and adapted to a professional working environment
- Contributed heavily to the last phase of the project, which helped it be nominated as one of the top 5 projects
Technologies
- .NET Core, WPF, Jira, Git
