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bryan_bui_2003

Bryan Huu Bui

@bryan_bui_2003

Software Engineer

Vietnam
English, Vietnamese
About me
Hi, I'm Bang, a Software Engineer specializing in full-stack development, backend performance, and e-commerce systems. I build reliable web applications using Next.js, React, Node.js, TypeScript, PostgreSQL, and AWS. My production experience includes optimizing API response times by 40%, improving large-scale order synchronization, and developing serverless APIs. I can help you fix slow applications, optimize databases, integrate APIs, and build maintainable web solutions.... Read more

Skills

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bryan_bui_2003
Bryan Huu Bui
Offline • 

See my services

API & Integrations
I will optimize slow nodejs apis and postgresql queries
From$45 / projectMore details

Portfolio

Work experience

PNJ_Group

Software Engineer

PNJ Group • Full-time

May 2025 - Jul 2026 • 1 yr 2 mos

Software Engineer working on a production e-commerce platform serving approximately 50,000 daily active users. Key contributions: - Optimized database queries and implemented asynchronous processing with AWS SQS, reducing API response time by approximately 40%. - Improved a large-scale order synchronization workflow, reducing processing time for 73,000 orders from 60 minutes to 2 minutes. - Developed serverless APIs using AWS Lambda and API Gateway, handling over 10,000 requests per day. - Implemented e-commerce features involving promotions, discount API integrations, and exception handling. - Developed and maintained full-stack features using Next.js, React, TypeScript, Node.js, and PostgreSQL. - Worked in Agile development cycles with automated testing, pull requests, code reviews, and CI/CD workflows. Focused on application performance, system reliability, maintainable code, and scalable backend architecture.