Open to opportunities

Biên Nguyễn Văn

@nvbien

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Software engineer building Go backends and AI applications with Flutter mobile expertise.

Vietnam

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What I'm looking for

I want to build high-quality Go backends and AI-powered features, collaborating end-to-end from APIs to RAG pipelines. I care about clean architecture, ownership, and solving complex problems with fast iteration and strong engineering practices.

I’m a software engineer with 5 years of experience—4+ years in Flutter mobile development and 1+ year building Go backend and AI-powered applications. I focus on high-quality, efficient, and maintainable code, and I’ve built my problem-solving mindset through competitive programming and mathematics.

At Relia, I progressed from Flutter mobile delivery to backend and AI ownership, building Go REST APIs, real-time workflows, and secure multi-tenant systems with JWT context and RBAC/ABAC. I’ve also designed and shipped end-to-end RAG experiences (pgvector + Azure OpenAI), delivered AWS Bedrock chat features, and helped ship a Flutter project that improved UI stability and contributed to £1.15M seed funding.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (Backend/AI)

Current

Relia Software

Apr 2024 - Present (2 years 4 months)

Progressed from Flutter mobile delivery to owning Go backend and AI features, including building multi-tenant REST APIs and RAG-based assistants. Delivered real-time/event-driven workflows and built end-to-end AWS Bedrock and Cognito-backed AI/chat capabilities with cross-platform VPN apps.

Go REST APIs Echo Gorm PostgreSQL gRPC Concurrent Programming JWT RBAC Pgvector RAG Vector Search Azure OpenAI Azure Functions Cognito AWS Amplify SES AWS Lambda Flutter Fyne Clean Architecture

Mobile Developer

Viettel Solutions

Jan 2023 - Mar 2024 (1 year 2 months)

Developed Flutter modules for vOffice 4.0, including embedded “Draw & Sign directly in PDF” and a Calendar module using GetX and Clean Architecture. Built tailored Flutter solutions for enterprise e-office systems and conducted mobile guild knowledge-sharing.

Flutter Dart Kotlin Swift GetX Clean Architecture State Management Enterprise Systems

Mobile Developer (Flutter)

TiSoHa Software Solutions

Jul 2021 - Dec 2022 (1 year 5 months)

Built and deployed Flutter mobile apps to Google Play and the App Store, ensuring guideline compliance and performance. Worked with international clients in English to gather requirements and deliver tailored solutions.

Flutter Dart App Store Deployment Performance Optimization Requirements Gathering English Communication

Education

Degrees, certifications, and relevant coursework

Ho Chi Minh City University of Technology (VNU-HCM)

Bachelor of Engineering, Computer Science

2018 - 2022

Activities and societies: 3rd prize — HCMUT × Teko Vietnam “Pascal’s Descendants” algorithm contest (2019).

B.Eng in Computer Science at Ho Chi Minh City University of Technology (VNU-HCM). Placed 3rd in the HCMUT × Teko Vietnam “Pascal’s Descendants” algorithm contest (2019).