Open to opportunities

Quân Văn

@qunvn

Message

Full-stack systems engineer building edge-native AI and high-performance apps.

Vietnam

Message

What I'm looking for

I want to build edge-native, high-performance full-stack systems and local-first AI infrastructure—owning backend architecture, security, and measurable performance gains in a product-minded team that values clear execution and collaboration.

I’m a Software Engineer with strong full-stack architecture experience and a deep focus on low-level systems. I’m passionate about building edge-native applications, designing local-first AI infrastructures, and optimizing memory allocation for high-performance computing.

In my recent Website Development Engineer role, I accelerated data loading speed by 20% and reduced re-rendering time by 30% through advanced data caching strategies. I also built and scaled high-performance web applications with responsive, interactive UIs, while collaborating on UI/UX optimization and competitor research to drive accessible, market-aligned features.

As an Independent Software & AI Consultant, I architected scalable backend systems for diverse B2B clients using modular NestJS/ExpressJS designs and robust relational + NoSQL data layers. I’ve delivered localized AI smart systems end-to-end (deployment through containerization), implemented dual-token security (JWT + OAuth2) with clean REST APIs, and led edge autonomy work—local RAG, secure microservices, high-concurrency processing, and LLM inference optimization with C++/llama.cpp to reduce latency and memory footprint.

Experience

Work history, roles, and key accomplishments

Current

Edge-Native CDSS Architect

Current

Po-Health

Jan 2026 - Present (5 months)

Designed a 100% localized, privacy-preserving clinical decision support system that synthesizes patient telemetry and institutional guidelines without relying on external cloud AI APIs. Built an edge inference pipeline with an embedded vector database (PomaiDB) and a Next.js + FastAPI workspace for real-time clinical reasoning and SOAP note automation.

Qwen2.5 Next.js fastAPI C++ Inference PomaiDB Vector Search

Current

Edge AI SaaS Engineer

Current

PomaiEm

Jan 2025 - Present (1 year 5 months)

Architected a highly scalable microservices ecosystem for an enterprise SaaS HRM and autonomous AI platform, routed through an API Gateway with zero-trust controls and encrypted WebSocket communications. Implemented high-concurrency background processing with RabbitMQ and deployed an edge-local RAG stack using PomaiDB and Cheesepath, optimizing LLM inference via a C++ llama.cpp-based engine and KV

Microservices Architecture API Gateway RabbitMQ WebSockets PomaiDB RAG C++ (Llama.Cpp)

Product Owner

Crosstech

Jul 2025 - Nov 2025 (4 months)

Converted product vision into prioritized backlogs, user stories, and acceptance criteria. Led SDLC as the primary point of contact, resolving technical blockers and running sprint reviews while aligning business stakeholders with engineering squads.

Agile Leadership Stakeholder Management Sprint Reviews ReactJS Next.js

Independent AI Consultant

Independent

Aug 2023 - Mar 2025 (1 year 7 months)

Architected and delivered scalable B2B backend systems and custom web applications using modular NestJS/ExpressJS architectures with both relational and NoSQL data layers. Integrated localized AI Smart Systems end-to-end and implemented secure REST APIs with JWT/OAuth2 using Swagger documentation.

NestJS MongoDB PostgreSQL MySQL Docker JWT OAUTH2

Education

Degrees, certifications, and relevant coursework

Ho Chi Minh University of Technology

Information Technology

2022 - 2026

Studied Information Technology at Ho Chi Minh University of Technology (2022–2026) and conducted academic research on Leaving Things Cache, focusing on local memory lifecycle management.