Contact Information
| Name | Dongxin (Betty) Guo |
| Professional Title | AI Researcher | COO @ Stellaris AI | Partner @ Brain Investing |
Experience
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2023 - Hong Kong SAR
Chief Operation Officer
Stellaris AI
Leading LLM infrastructure and operations for a native-safe, general-purpose LLM company.
- LLM pre-training, fine-tuning, and inference infrastructure management
- Overseeing development of SGPT series models
- Building scalable ML pipelines for production deployment
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2023 - -
2023 - 2023 Hong Kong SAR
Partner, AI Quantitative Trading
Brain Investing Limited
Leading AI-driven investment strategies and LLM-powered portfolio management.
- Spearheading Athena™ — Hong Kong’s first LLM-powered portfolio management platform
- Investment management and Large Language Model Operations (LLMOps)
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2020 - 2022 Managing Director, AI Quantitative Trading
Brain Investing Limited
- Led AI/ML team for quantitative trading systems
- Investment management and applied artificial intelligence
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2018 - 2020 Hong Kong SAR
Director, Quantitative Trading Researcher
Brain Investing Limited
- Investment management
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2017 - 2018 Hong Kong SAR
Senior Associate, Quantitative Researcher
Brain Investing Limited
- Investment management
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2015 - 2017 Hong Kong SAR
Quantitative Trading Researcher
The Aria Group Ltd
- Investment management
Education
Skills
Research (Expert): LLM Theory, Multi-Agent Systems, Retrieval-Augmented Generation, AI Safety & Alignment, Statistical Learning Theory, Mechanism Design
Engineering (Expert): Python, PyTorch, LLM Pre-training & Fine-tuning, Distributed Systems, ML Infrastructure, Quantitative Trading Systems
Leadership (Expert): Team Management, Product Strategy, Operations, Regulatory Compliance, Investor Relations
Certificates
- DEC x HKU AI Literacy for Research Postgraduates - Digital Education Council (2026)
Awards
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2014 CBS Prize for Distinguished Postgraduate Students
The Hong Kong Polytechnic University
Languages
Chinese (Mandarin) : Native
English : Full professional proficiency
Cantonese : Working proficiency