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sunbc0120/README.md

Baichuan Sun, Ph.D.

Lead GenAI Customer Engineer @ Google

Bridging Deep R&D, Corporate Strategy, and Production-Grade Engineering


๐ŸŒ The Convergence of Intelligence & Strategy

I architect and prototype enterprise AI systems across distributed post-training, multimodal agents, and regulated workflows. I work across the full decision chain: frame the business and technical decision, build the critical path, demonstrate it under real constraints, and hand over something the customer team can operate.

My goal is not to choose between engineering and strategy. It is to use technical depth to improve consequential decisionsโ€”and to stay close enough to implementation to know when the slide deck is wrong.

  • Build: Own the technically uncertain path from architecture to working proof.
  • Decide: Connect model and platform choices to economics, security, governance, and organisational readiness.
  • Multiply: Turn individual engagements into reusable architectures, public knowledge, and stronger delivery teams.

๐Ÿš€ Current Focus: Frontier GenAI & Reasoning

At Google, I advise APACโ€™s enterprise C-suites on the sovereign adoption of Generative AI, focusing on:

  • Agentic Data Engines: Moving beyond simple RAG into autonomous, multi-modal reasoning loops.
  • Infrastructure Economics: Optimizing elastic HPC and training/inference costs for the next billion tokens.
  • Cognitive Trust: Engineering the guardrails, red-teaming frameworks, and safety layers required for enterprise-grade compliance.
  • Next-Gen CX: Deploying hyper-personalized, real-time multimodal agents that redefine human-computer interaction.

๐Ÿฉบ How I Operate

  • Under pressure: Management consulting taught me to remain useful when the room becomes difficultโ€”turn conflict into decisions, convert ambiguity into an executable plan, and stay accountable through delivery rather than stopping at the presentation.

  • Without a playbook: Research taught me to be comfortable with problems I have not solved before: form hypotheses, build experiments, and converge on a workable answer under real constraints.

  • With ownership: I architect, prototype, build, demonstrate, and hand over. The work spans executive stakeholders, platform teams, researchers, and the engineers who must operate the result.


๐Ÿ—๏ธ Strategic Engineering & Selected Research

Bridging the gap between frontier research and production-grade systems.

๐Ÿง  Reasoning AI (GRPO)

Architected distributed NeMo-RL clusters on GKE to fine-tune Gemma 3 using Group Relative Policy Optimization (GRPO). Optimized FSDP sharding on NVIDIA B200 clusters.

Value: Achieved +6.2% absolute gain in MATH-500 accuracy via custom reward engineering.

๐Ÿ” Enterprise Document AI (OCR)

Architected a multi-modal Financial Audit engine using LMMs and advanced OCR. Automated the extraction of complex, unstructured data from heterogeneous financial instruments.

Value: Eliminated 90% of manual data entry for Tier-1 financial institutions.

๐Ÿค– Spatial Intelligence & Robotics

Developed high-fidelity Computer Vision pipelines for autonomous robotic systems. Focused on real-time object detection and kinematic path planning in dynamic environments.

Value: Reduced manual oversight by 40% in industrial automation.

โณ Predictive Prognostics

Leveraging my background in Thermodynamics, I built Time Series Forecasting models for high-value industrial assets to predict failure modes before they occur.

Value: Saved millions in unplanned downtime for energy providers.


๐Ÿ› ๏ธ Technical Ecosystem

Frontier GenAI & Research Scalable Engineering & HPC Strategy & Domain
Gemini / Gemma 3 NVIDIA B200 C-Suite Advisory & Consulting
GRPO & RLHF (NeMo-RL) Ray on GKE (KubeRay) Unit Economics of AI
Vertex AI & Model Garden PyTorch FSDP & DCP AI ROI & TCO Modeling
Agentic RAG / Agents vLLM & FlashInfer Sovereign AI Frameworks
Dynamic Grounding Distributed Training (XLA) Gov & Risk Management

๐Ÿ“ˆ Global Impact & Thought Leadership

"Science is only as useful as its ability to be democratized."

  • Lead GenAI Solutions: Architecting AI roadmaps for APAC Decacorns, transforming legacy data into Agentic Intelligence.
  • Open Source Authority: Co-author and PyPI maintainer of Amazon DenseClus, an AWS Labs package for mixed-type clustering with 138K+ downloads.
  • 3M+ Professionals reached via technical publications and strategic guidance on AI infrastructure and economics.
  • Global Footprint: Mechanical Engineering (๐Ÿ‡จ๐Ÿ‡ณ) โ†’ Robotics Researcher at Tohoku (๐Ÿ‡ฏ๐Ÿ‡ต) โ†’ Statistical Physics PhD at NTU (๐Ÿ‡ธ๐Ÿ‡ฌ) โ†’ Wolfram Summer School (๐Ÿ‡บ๐Ÿ‡ธ) โ†’ CSIRO/McKinsey/AWS (๐Ÿ‡ฆ๐Ÿ‡บ) โ†’ Google.

๐Ÿงฌ Contribution Topology

3D GitHub contribution calendar

๐Ÿš€ Strategic Open Source Ecosystem

Active contributor to the foundational frameworks defining the future of AI/ML.


๐Ÿ“ก External Interfaces


Pinned Loading

  1. b200-nemo-rl b200-nemo-rl Public

    High-performance RLHF/GRPO pipeline scaling Gemma 3 on GKE Ray Clusters (B200/H200) using NVIDIA NeMo-RL. Includes native FSDP checkpoint merging and zero-shot vLLM benchmarking.

    Shell 1

  2. awslabs/amazon-denseclus awslabs/amazon-denseclus Public

    Clustering for mixed-type data

    Jupyter Notebook 101 19

  3. aws-samples/amazon-sagemaker-endpoint-deployment-of-fastai-model-with-torchserve aws-samples/amazon-sagemaker-endpoint-deployment-of-fastai-model-with-torchserve Public

    Deploy FastAI Trained PyTorch Model in TorchServe and Host in Amazon SageMaker Inference Endpoint

    Jupyter Notebook 75 9

  4. aws-samples/amazon-sagemaker-endpoint-deployment-of-siamese-network-with-torchserve aws-samples/amazon-sagemaker-endpoint-deployment-of-siamese-network-with-torchserve Public archive

    Twin Neural Network Training with PyTorch and fast.ai and its Deployment with TorchServe on Amazon SageMaker

    Jupyter Notebook 11 4

  5. Raiden Raiden Public

    Emulation of "Raiden" Game with Mathematica

    Mathematica

  6. aws-samples/streamlit-application-deployment-on-aws aws-samples/streamlit-application-deployment-on-aws Public

    Streamlit EDA Dashboard Powered by AWS Cloud

    Python 84 34