Freelancer profile translated to English.
Back to original languageAbout Thu
I develop robust systems that withstand the demands of production environments.
With over 10 years of experience in enterprise software projects (Banking, Leasing, Automotive), I design and implement backend-oriented solutions with .NET Core and Java, and develop modern user interfaces with React and Angular.
I have modernized legacy systems, developed full-stack applications, and implemented background services and integrations that ensure stable and smooth business operations.
I am currently seeking opportunities to contribute to teams that value clean architecture, stability, and long-term scalability.
German
Native or bilingual
English
Fluent
Vietnamese
Native or bilingual
Spanish
Basic
Can work on-site
München (up to 50km)
Experience
- CARTV GmbHSoftware DeveloperAUTOMOBILEMay 2024 - November 2025 (1 year and 6 months)München, GermanyFull-Stack Developer focused on React, .NET Core, Oracle Database, and PostgreSQL in large-scale automotive marketplace systems.
- Developed a mobile marketplace with React Native for damaged vehicle auctions, enabling dealers to search, filter, and bid – enhancing price transparency and accelerating sales cycles.
- Built an internal user and role management system (React + .NET Core + Entity Framework + Oracle Database) to optimize access control and reduce administrative overhead.
- Implemented an automated Windows Service scheduler (C# / ADO.NET) for transferring production data to BI systems with flexible hourly/daily/monthly scheduling and manual override capabilities, ensuring reliable reporting.
- Integrated photo upload and editing functionalities into existing backend systems to improve workflow efficiency for operational teams.
- Maintained and enhanced legacy backend services to ensure stability while introducing new features across multiple projects.
- Tech: C# (ASP.NET Core, ASP.NET MVC), Blazor, React, React Native, JavaScript, HTML, SQL, Oracle, Python, Docker
- Hausbank MünchenSoftware DeveloperBANKING AND INSURANCEOctober 2023 - April 2024 (6 months)München, GermanyMaintained and extended core modules of a legacy real estate management system (Java / Spring MVC / Oracle) to ensure operational stability of internal banking processes.
- Implemented feature enhancements and performance optimizations in business-critical modules.
- Contributed to early modernization by initiating the migration towards a React-based user interface, improving usability and long-term maintainability.
- Tech: Java, Spring, Spring boot, React, Oracle
- Rockstardevelopers GmbHSoftware DeveloperDIGITAL AND ITApril 2023 - July 2023 (3 months)München, GermanyContributed to the development of a casting management system for enterprise clients, focusing on core modules and scalable architecture.
- Implemented features using Angular, Spring Boot, and PostgreSQL to enhance maintainability and performance.
- Applied Domain-Driven Design principles to structure core modules, increasing code clarity and long-term scalability.
- Participated in unit and integration testing using JUnit and Mockito to ensure reliable functionality.
- Tech: Java Spring Boot, Angular, PostgreSQL, JUnit, Mockito
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Education
- Web Developmentneuefische GmbH2022Weiterbildung zum Web Development
- MSc in Biomedical EngineeringHochschule Furtwangen University2009MSc in Biomedical