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dungphungdev

DungPhung

@dungphungdev

Senior Backend Engineer for API Debugging and SQL

Vietnam
Inglese, Vietnamita
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I troubleshoot ASP.NET Core APIs, unreliable webhooks, and slow SQL queries. I reproduce the issue, trace the root cause, and explain how to verify the fix. I have 14+ years of backend and integration experience, including financial services. I work with C#, .NET, REST APIs, SQL Server, and PostgreSQL, and also support Python, FastAPI, Docker, cloud integrations, and legacy .NET modernization. Send the expected behavior, steps to reproduce, and sanitized logs so we can define a focused scope.... Continua a leggere

Competenze

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dungphungdev
DungPhung
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Correzione di bug
I will debug aspnet core apis webhooks and sql issues
A partire da25 USD / progettoMaggiori dettagli
Query SQL e NoSQL
I will review and optimize one slow sql server query
A partire da30 USD / progettoMaggiori dettagli

Esperienza lavorativa

F88

Development Lead / Senior Backend Engineer

F88

Jan 2023 - Present • 3 yrs 10 mos

Lead backend development for business-critical financial systems and enterprise integrations. Design and maintain distributed .NET services, REST APIs, SQL Server stored procedures, and asynchronous processing with Apache Kafka. Investigate production issues across application, database, and integration layers, including performance tuning and root-cause analysis. Provide technical guidance and code reviews, and work with AWS, DevOps, QA, architects, and business teams on reliable backend delivery and system modernization.

VMO

Software Engineer

VMO

Jun 2020 - Jan 2023 • 2 yrs 7 mos

Developed and maintained microservices using .NET Core and Azure cloud services. Contributed across the service lifecycle, including system design, backend development, automated testing, and CI/CD. Worked on application performance tuning, troubleshooting, and maintenance of production features. Tech stack included .NET Framework, .NET Core, Azure, and cloud-based backend architecture.

Rikkeisoft

Software Engineer

Rikkeisoft • Full time

Jun 2015 - Dec 2017 • 2 yrs 6 mos

Contributed to a full legacy system migration from .NET Framework 1.1 to .NET Framework 4.0. Maintained and enhanced key business features while preserving existing system behavior during modernization. Worked extensively with ASP.NET MVC and Oracle database systems to ensure a seamless transition for enterprise clients.