Dark atmospheric AI neural network visualization with glowing blue nodes and deep shadows on black background
Available for hire
AI Engineer

ALEX
&CHEN

Machine LearningLLM SystemsComputer Vision

Building production-grade AI systems — from LLM pipelines and RAG architectures to real-time computer vision deployments.

Projects Shipped24+
Certifications12
Years in AI/ML6
Open Source Stars3.2k
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WORK
Selected Works

Built & Deployed.

Every project is in production. Real data, real users, real impact.

Dark medical imaging interface with glowing scan overlays and deep shadows on black background
PyTorchDICOMFastAPI

MedVision AI

Deployed a convolutional neural network pipeline for chest X-ray pathology detection. Achieves 94.3% sensitivity on pneumonia detection — outperforming radiologist baseline by 7%. Processes 800 images/minute on a single A100 GPU.

Real-time diagnostic imaging2024
Dark abstract data flow visualization with glowing blue lines and atmospheric dim lighting
LangChainWeaviateGPT-4

RAGFlow

Production RAG pipeline serving 50k daily queries for a Fortune 500 legal firm. Reduced hallucination rate by 62% vs baseline GPT-4. Built with LangChain, Weaviate vector DB, and custom re-ranking.

Enterprise LLM retrieval system2024
Dark analytics dashboard with glowing charts and deep shadows on black background
RoBERTaKafkaAWS

SentimentEdge

Processes 2M tweets/day for brand sentiment analysis. Fine-tuned RoBERTa with domain adaptation — 91% F1 on financial news. Deployed on AWS with sub-100ms latency at p99.

Real-time social media NLP2023
Dark futuristic autonomous vehicle sensor overlay with glowing detection boxes and dim atmospheric lighting
CUDAPointNetROS2

AutoDrive Sim

End-to-end perception system for autonomous vehicle simulation. Multi-modal fusion of LiDAR + camera streams using a custom transformer architecture. Achieves 98.1% object detection mAP on KITTI benchmark.

Autonomous vehicle perception stack2023
CERTS
Verified Credentials

Certified & Validated.

12 active credentials
Neural Networks

Deep Learning Specialization

DeepLearning.AI

Nov 2023DL-2023-4821
Cloud ML

AWS Certified ML Specialty

Amazon Web Services

Aug 2023AWS-MLS-7743
MLOps

Professional ML Engineer

Google Cloud

May 2023GCP-MLE-9921
NLP

Natural Language Processing

Hugging Face

Feb 2023HF-NLP-3312
Frameworks

TensorFlow Developer Certificate

Google

Oct 2022TF-DEV-5509
RL Systems

Reinforcement Learning

DeepMind & UCL

Jul 2022RL-UCL-1187
REACH
Get in Touch

Let's Build Together.

Open to senior AI/ML roles, research collaborations, and interesting open-source projects.

GmailEmail

alex.chen.ai@gmail.com

Best for project inquiries, collaboration proposals, and hiring.

GitHubCode

github.com/alexchen-ai

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LinkedInNetwork

linkedin.com/in/alexchen-ai

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Open to opportunities

Ready to ship AI that actually works?

6 years building production ML systems. From LLM fine-tuning to real-time inference pipelines — I deliver results, not demos.

Response time< 24h
TimezonePST / UTC-8
AvailabilityFull-time
LocationSF, CA
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