Experience

Work Experience
June 2025 Present Hanoi, Vietnam

VinMotion, VinGroup

AI/Robotics Engineer PermanentFull-timeOn-site

  • Developed embodied task-planning modules using multi-agent workflows and Vision-Language Models for autonomous task execution, and decision-making in humanoid robots
  • Built and deployed model-based and model-free 6DoF object pose estimation modules to improve robotic grasping accuracy
  • Developed an instruction-following data generation and benchmarking pipeline for VLN training, automating dataset creation and evaluation workflows

ROS 2PythonPyTorchLangGraphTool CallingVLAVLMGazebo

Key Skills

ROS 2LangGraphVLMVLAPyTorchTool CallingHumanoid RoboticsGazebo
May 2025 Sep 2025 Hanoi, Vietnam

AIS, VMO Holdings

AI Engineer ContractFull-timeRemote

  • Built a Computer Vision Acceleration Pipeline cutting development-phase time cost by 50–70%
  • Warehouse Package Tracking with RF-Detr deployed in warehouse via surveillance cameras, automating storage processes
  • Food-Ordering Agentic Workflow with LangGraph deployed in kiosks to automate ordering process from customer interaction (STT/NLP) to order fulfillment and customer feedback collection (TTS/NLP)

PythonFastAPIONNXLangChainLangGraphLLMNLPASRTTS

🔒 Details have been hidden due to company privacy policy.
Nov 2023 Sep 2025 Ikoma, Japan

Human Robotics Laboratory, NAIST

Research Assistant ContractFull-timeOn-site

  • Developed an Android VR See-Through System for medical assessment robots supporting clinical observation
  • Designed an Unreal-Based VR Driving Simulator with integrated AI driving assistant for driver training and cognition evaluation (Hitachi Corp collaboration)

FlutterPythonUnityUnreal EngineROS 2

Key Skills

FlutterUnreal EngineUnityROS 2Generative AIHRIVR/AR
Nov 2021 Sep 2023 Hanoi, Vietnam

Viettel Big Data Analytics Center, Viettel Group

AI Engineer PermanentFull-timeOn-site

  • Built and deployed large-scale speaker verification for Viettel Call Center — serving millions of customers daily with >99% accuracy, significantly reducing manual workload (>50%), preventing fraud, and improving customer experience
  • Developed a voice quality assessment system for call centers to monitor and improve audio quality for speech datasets, leading to a reduction of manual review time by 80% and improving ASR performance through better data quality
  • Participated in VoxCeleb Speaker Recognition Challenge (VoxSRC) 2022 (Top 20) and Vietnamese Language and Speech Processing (VLSP 2022)
  • Data preparation and implementation of LLM into the My Viettel chatbot platform

PythonPyTorchTritonDockerKafkaASRVADNLPLLMSpeaker Verification

Projects

🎙️ Speaker Verification System 📊 Voice Quality Assessment 🤖 LLM Chatbot — fine-tuned PaLM & LLaMA on company data (2022)

Internal Contributions

  • Tech Talk: Speaker Verification for Call Center — internal knowledge-sharing session
  • Mentor — Viettel Digital Talent Program 2022

Achievements

  • Participated in VLSP (Vietnamese Language & Speech Processing) competition
  • High placement in VoxCeleb Speaker Recognition Challenge (VoxSRC) 2022 (Top 20)

Key Skills

Speaker VerificationPyTorchTritonASRVADLLM Fine-tuningDockerKafka
Apr 2021 Oct 2021 Hanoi, Vietnam

Viettel Digital Talents Program 2021, Viettel Group

AI Intern ContractPart-timeOn-site

  • Completed intensive AI & Data Science training under Viettel's national talent initiative
  • Contributed to Vietnamese speaker verification system later deployed in production

Achievement

  • Selected as Top 10 candidate out of the entire Viettel Digital Talent Program 2021 cohort

Key Skills

PythonSpeaker VerificationDeep LearningData Science
Education

Master of Engineering — Human Robotics Interaction

Nara Institute of Science and Technology (NAIST), Japan

Oct 2023 – Sep 2025

Research: Personalized human-robot interface for APMVs using generative models tailored to passenger personality.
Funded by MEXT Scholarship, Japan (2023).

Bachelor of Science — Automation & Electrical Engineering

Hanoi University of Science and Technology (HUST), Vietnam

Sept 2018 – Sept 2022

GPA: 3.52 / 4.0 — Graduated with Distinction, 2nd place in Thesis defense committee.
Thesis: Speaker verification system for telecommunication service.

Competitions
VoxCeleb Speaker Recognition Challenge (VoxSRC) 2022 Top 20

Task: Speaker Verification
Track 1 (closed, no external data) and Track 2 (open, with external dataset)

Approach:

  • Model fusion: RawNet (raw audio input) + ECAPA-TDNN (spectrogram input)
  • Multi-loss optimization: AAM-Softmax (classification) + Proxy Anchor (metric learning)
  • n-fold data augmentation pipeline
Vietnamese Language and Speech Processing (VLSP) 2022 Top 5

Task: O-COCOSDA and VLSP 2022 - MSV Shared task: Multilingual Speaker Verification
(track 1: seen languages, track 2: unseen languages, track 3: cross-lingual)

Approach:

  • Model fusion: RawNet (raw audio input) + ECAPA-TDNN (spectrogram input)
  • Pretrained self-supervised models: Wav2Vec 2.0 and WavLM as feature extractors
  • Multi-loss optimization for cross-lingual speaker representation
Data-Centric AI Competition, FPT 2021

Task: Improve human detection with YOLOv5 using a data-driven approach only (no model architecture changes)

Approach:

  • Data preprocessing: noisy label removal, annotation standardization, image quality enhancement
  • Ensemble with diverse augmentation strategies and hyperparameter sets
  • Knowledge distillation to reduce manual data evaluation overhead