Hanwen Liu

Welcome to my portfolio website! My name is Hanwen Liu, I am currently a graduate student @ StonyBrook University majoring Machine Learning & Artificial Intelligence. Feel free to explore my projects and experiences, and I seek new opportunities to grow and innovate in this field.

About Me

Experience

Software Engineer

FDM Group

08/2022 - 05/2023

• Successfully developed and maintained a high-performing, scalable web application for the attendance system using JavaScript, React, and CSS, resulting in a 50% increase in user engagement

• Implemented clean, well-documented, and maintainable code, utilizing Git for version control and JIRA for project management

• Utilized Scrum methodology to consistently deliver quality software by actively participating in Scrum ceremonies, writing and testing code, providing constructive feedback, staying up-to-date on industry advancements, and effectively communicating with team members

Software Engineer Intern

Assistant Manager (PT)

Weitian Media

05/2019 - 09/2019

• Designed a web crawler (Python-based) and conducted user browsing data analysis to determine current popular trends

• Constructed a visualized data dashboard using React and Firebase for efficient data storage and analysis. Resulted in a 50% increase in productivity for the Technology Development Team

Happy Home LLC

05/2017 - 09/2017

• Skillfully engaged with customers in a computer and AC store, fostering a welcoming and informative environment to encourage interaction and trust-building.

• Leveraged strong interpersonal skills to actively listen to customers' needs and preferences, enabling the identification of suitable computer and air conditioning solutions tailored to individual requirements.

• Acted as a knowledgeable resource, providing expert guidance on the features and advantages of various computer and AC models, enhancing customers' understanding and confidence in their purchase decisions.

Stony Brook University

Master of Machine Learning and Artificial Intelligence

08/2024 - Present

Penn State University

Bachelor of Computer Science

08/2017 - 05/2021

🎖Dean's List (6 semesters)

Education

🎖Provost Award Scholarship (4 years)

Projects

AI supervised & unsupervised Q-A advisor

Cozy Resident Portal

• Developed a domain-specific chatbot by fine-tuning the Mistral-7B model using supervised (manual Q-A pairs) and unsupervised (generated data) approaches.

• Implemented parameter-efficient fine-tuning techniques (Low-Rank Adaptation (LoRA)) and model quantization to reduce computational resource requirements.

• Processed domain-specific data, including generating synthetic question-answer pairs using Google Gemini Flash 1.5, to create a specialized dataset for fine-tuning.

• Executed model finetuning on Google Colab, optimizing the process with quantization to fit GPU memory constraints.

• Created a visually appealing UI utilizing React and AntD, incorporating event, payment, service, and post dashboards

• Developed backend services using Spring Boot, enabling the functionality to add events, request services, add posts, and delete posts

• Integrated post details, uploaded images, and user-generated data with MySQL (AWS RDS)

• Managed media files utilizing AWS S3 cloud service and Deployed backend services on AWS EC2 for enhanced scalability and reliability

• Formulated satellite positions in real-time based on geolocation, tracking process by enabling users to search and follow satellite paths by inputting longitude, latitude, altitude, and duration information

• Improved the lated an interactive satellite tracking dashboard using React and D3, which allows users to track user experience by incorporating animations to mark the satellite paths on a world map drawn with D3

• Demonstrated the scalability of the dashboard by expanding its capabilities to the Amazon Web Service platform

Star Tracker

Suffering from skill issues

Python

HTML/CSS

Java

SQL

AWS

React.js

Javascript

Andriod Studio

Github

Linux

Node.js

PyTorch

SpringBoot

MySQL

Git