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Hanoi, Vietnam

Bang Nguyen

bangnbx [at] gmail [dot] com

Experience

Founder & Engineer Real-Time Solana Analytics & Execution System Apr 2025 – Present

• Data ingestion: built fault-tolerant local state engine in Rust (Tokio async runtime, RocksDB, shared memory IPC), synchronizing tracked accounts via Yellowstone gRPC and RPC, utilizing multi providers for cross-validation and handling slot skipping
• Execution: processed real-time transactions via gRPC and shredstream for sub-millisecond signal detection, evaluated conditions against local state, and submitted trades programmatically
• On-Chain: used Anchor framework to build cross-verified local state against on-chain data; determined optimal trade size algorithmically based on pool liquidity and price modeling
• Analytics: decoded on-chain instructions and logs across DEX protocols (Meteora, Raydium, Pumpfun, Jupiter, ...) to identify and classify trade patterns

Engineer & Researcher FPT Technology Research Institute Oct 2017 – Apr 2025

• eKYC system: engineered ML verification pipeline and mobile SDK integration; deployed across banking and financial institutions — published at IEEE KSE 2022
• ML Model fine-tuning: fine-tuned small language models for text-to-SQL tasks using reinforcement learning techniques — published in NLP Journal 2025
• Credit Scoring: built end-to-end scoring system from data preprocessing through model evaluation to production deployment serving financial institutions
• Data infrastructure: designed multi-service backend architecture; automated large-scale data crawling pipelines (Python, Elasticsearch, MongoDB)
• Led team of developers and researchers across concurrent projects

Software Engineer Bayo Vietnam (startup in travel and tourism) Feb 2016 – Aug 2017

• Application: built backend architecture for travel booking, search, and social networking features
• Data ingestion: built near-realtime web crawler for aggregating travel review data across forums

Skills

• Programming languages: Rust, Python, Javascript, Shell
• Strong background in data structures & algorithms
• Blockchain: Solana, EVM (BSC/Arbitrum/Polygon) tools
• Back-end development: low-latency system, multi-service architecture, integrating machine learning models
• Database & Search Engine: RocksDB, SQL, Milvus (vector DB), MongoDB, Elasticsearch
• DevOps: Docker, Ansible
• Others: Crawling, Linux, Jupyter notebook
• Languages: Vietnamese (Native speaker), English (IELTS 7.5 - Apr 2025)

Projects

• Credit Scoring Assessed user creditworthiness based on social media profiles and behavioral patterns
• Social Listening Processed and analyzed data from millions of users in near real-time at scale
• e-KYC Solution end-to-end identity verification system — document OCR, facial recognition, video verification, and user identity validation
• Bayo Platform booking platform and travel-oriented social network
• Freelance projects Backend & mobile applications

Education

Hanoi VNU University of Engineering and Technology 2021 – 2023

• Master in Computer Science. GPA: 3.56/4

Hanoi Hanoi University of Science and Technology 2012 – 2017

• B.S. in Electrical Engineering and Telecommunications (Talented program). GPA: 3.24/4

Awards

• VPBank Hackathon 2018 (VPBank) The most realistic project in the final round
• Google Developer Group in Hanoi mini hackathon 2017 (GDG Hanoi) First prize
• Code War (CTF, Competitive Programming, AI 2017) (Framgia - Sun Asterisk) Second prize
• Vietnam Informatics Olympiad 2012 (Ministry of Education and Training) Consolation prize

Publications

Xuan-Bang Nguyen, Xuan-Hieu Phan, and Massimo Piccardi. “Fine-tuning text-to-SQL models with reinforcement-learning training objectives.” Natural Language Processing Journal 10 (2025): 100135.
https://www.sciencedirect.com/science/article/pii/S2949719125000111

Viet-Trung Tran, Van-Sang Tran, Xuan-Bang Nguyen, and The-Trung Tran. “A liveness detection protocol based on deep visual-linguistic alignment.” In 2022 14th International Conference on Knowledge and Systems Engineering (KSE), pp. 1-6. IEEE, 2022
https://ieeexplore.ieee.org/document/9953623