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Pham Anh DungHanoi, Vietnam
I work a layer below most web development: measuring how HTTP/3 and multipath QUIC behave on real networks, and writing the C tooling to do it. The rest of my time goes into full-stack products.
HANOI, VIETNAM / ICT
Network research and software engineering.
I'm specialized in
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I'm Pham Anh Dung (Duxng), a developer in Hanoi. I study Information Technology and work on two tracks: measuring how transport protocols behave on real networks, and building the products that run over them. Knowing what happens beneath the socket changes how I design above it.
Outside work I cycle, read, draw and play music. Time away from the screen is usually where the stuck problems come loose.
The stack I work in, and how far I have taken each part of it.
Four projects — two from the network research side, two from the product side.
Network Research
A local HTTP proxy in C that folds every browser request into a single persistent MPQUIC connection, then carries it over Wi-Fi and 4G tethering simultaneously. Built directly on picoquic, with qlog traces for per-path analysis.
A DASH video platform built to measure HTTP/1.1, HTTP/2, HTTP/3 and MPQUIC against each other under identical load. The edge is swappable between Caddy, OpenLiteSpeed/LSQUIC and a custom picoquic server, so the same workload replays on every stack.
Software Engineering
An HR and applicant-tracking system covering the full employee lifecycle — applicant, interview, offer, signed contract. JWT auth across three roles, a multi-level department tree, and a six-stage Kanban recruitment pipeline.
An end-to-end ticketing system: search, seat selection, multi-passenger booking, payment with signed gateway webhooks, refunds, online check-in and QR boarding passes — split into a React client and a modular Express API.
All repositories
@AhDuxngRepository list unavailable right now — see github.com/AhDuxng.
Where I have been studying and building.
2024 — present
Phenikaa University, Hanoi
Undergraduate in Information Technology, focused on computer networks and systems programming.
2025 — present
Applied AI Lab
Transport-layer research and tooling in C, built on picoquic: multipath QUIC delivery, and a harness for measuring HTTP/1.1, HTTP/2 and HTTP/3 against each other under identical load.