Upstaffer since December, 2025Tianchang Liu — Senior Machine Learning Engineer
Expertise in AI and Machine Learning (10.5 yr.).
Last verified on December, 2025Core Skills
Bio Summary
Senior Machine Learning Engineer with a decade of experience, excelling in AI/ML systems, MLOps, and infrastructure scalability. Proven capability in deploying models on edge devices, creating efficient cloud pipelines, and ensuring production-readiness with advanced monitoring solutions. Technical adeptness spans across Python, C++, and cloud platforms (AWS, GCP, Azure), with hands-on expertise in frameworks like PyTorch, TensorFlow, ONNX, and Kubernetes for model deployment and orchestration. Holds a solid educational background with a Master's in Mathematics and Computer Science from USC and a Bachelor's in Computer Science from Tsinghua University. Demonstrates a strong record of achievements in optimizing computer vision models for retail, designing decentralized ML infrastructure, implementing scalable AI pipelines, ensuring system reliability, and advancing sales analytics & forecasting methodologies.
Technical Skills
| Programming Languages | Go, Java, Python, Rust, Scala, TypeScript |
| AI & Machine Learning | Amazon Machine learning services, Apache Mahout, AWS SageMaker, Hugging Face, LangChain, LlamaIndex, NumPy, PandasAI, Scikit-learn, TensorFlow, Xgboost, YOLOv8 |
| C++ Frameworks | Boost |
| C++ Libraries and Tools | C/C++/C# |
| Python Frameworks | Django REST framework, FastAPI, Flask |
| JavaScript Frameworks | Express, Node.js, React, three.js |
| Go Frameworks | Gin |
| Go Libraries and Tools | Gin, Libp2p |
| Python Libraries and Tools | NumPy, Scikit-learn, TensorFlow |
| UI Frameworks, Libraries, and Browsers | Semantic UI |
| Java Frameworks | Spring |
| JavaScript Libraries and Tools | three.js |
| Data Analysis and Visualization Technologies | Apache Mahout, Databricks, ETL Pipelines, PandasAI |
| Databases & Management Systems / ORM | AWS DynamoDB, Cosmos DB, MongoDB, Neo4j, PostgreSQL, Snowflake |
| Amazon Web Services | AWS Boto3, AWS DynamoDB, AWS EC2, AWS S3, AWS SageMaker |
| Azure Cloud Services | Azure VM, Cosmos DB, Databricks |
| Deployment, CI/CD & Administration | Active Directory |
| Message/Queue/Task Brokers | Celery, Kafka, RabbitMQ |
| SDK / API and Integrations | Facebook API, FastAPI, Google API, Slack API |
| Mail / Network Protocols / Data transfer | GRPC |
| BlockChain and Decentralized Software | Hardhat, Tokio |
| Logging and Monitoring | Prometheus |
| Methodologies, Paradigms and Patterns | SOLID |
| UI/UX/Wireframing | STL |
| Virtualization, Containers and Orchestration | Terraform |
| Platforms | Unity |
| Other Technical Skills | AD, Blender 3D, InterPlanetary File System, ONNX, Open3d, OpenPyXL, Qdrant, V-ray, Weaviate |
