Siji Chen

Diligence Ct · VA 20105 · (240) 586-2693 · sijic@vt.edu

I'm PhD candicate with 5 years+ full-stack software engineer experience. My research interests are graphic neural networks(GNN), urban informatics, imitation learning, spatial-temporal data mining, and uncertainty analysis.

I'm looking for Summer Internship 2025.


Education

Virginia Tech

Ph.D. Candidate in Computer Science
August 2022 - May 2027

University of Maryland, College Park

M.S. Telecommunications
August 2011 - December 2012

Beijing Jiaotong University

B.S. Electronic Science and Technology
August 2007 - June 2011

Publications

  • (ICRA 2024) Siji Chen, Yanshen Sun, Peihan Li, Lifeng Zhou, C.T. Lu, “Learning Decentralized Flocking Controllers with Spatio-Temporal Graph Neural Network”
  • (PAKDD 2024) Rui Shang, Siji Chen, Zhiqian. Chen, C.T. Lu, “GraphNILM: A Graph Neural Network for Energy Disaggregation”
  • (SIGSPATIAL 2023) Siji Chen, Yanshen Sun, Peihan Li, Lifeng Zhou, C.T. Lu, “Spatial Temporal Graph Neural Networks for Decentralized Control of Robot Swarms (Demo Paper)”

Experience

Research Assistant

Virginia Tech

As a research assistant, I conducted independent research on previous related work and validated findings using Python simulations. My research specialized in imitation learning, spatio-temporal data mining, graph neural networks, and multitask learning.

August 2022 - August 2024

Software Engineer Part-time

FEMA NFIRS

As a software engineer in a small team, I manage and enhance applications, optimize performance, provide production support, implement security-finding remedies, support cloud migration efforts, and engage with clients and customers to ensure their needs are met and solutions are effectively implemented..

June 2021 - Present

Software Engineer

Fannie Mae

As an end-to-end full-stack software engineer in a finance team, I collaborated with customers to design and develop software solutions. I supported the business with quantitative research, data, reporting, and analytics tools. I took full responsibility for choosing technologies and methodologies that meet client needs, are cost-efficient, and enhance the development cycle.

October 2017 - June 2021

Radio Frequency Analyst

Global Wireless Solutions

I led a team in collecting and ensuring the quality of large daily datasets and delivering weekly KPI reports to clients. I improved efficiency and accuracy by customizing data processes using GWS tools, VB macros, Java, and scripts. I designed SQL queries for complex data extraction from MS SQL databases. Additionally, I developed Java programs to automate manual tasks, significantly reducing manual work time.

Janunary 2013 - July 2015

Skills

Machine Learning/ AI
  • Programming: Python, PyTorch, Matlab, OpenAI Gym
  • Models: Deep Neural Network, CNN, GNN, RNN, Transformers
Programming Languages & Tools
  • Backend: Java, Spring framework, Python, SQL, Oracle, PostgreSQL, Redshift
  • Frontend: Twitter Bootstrap, jQuery, JavaScript, Angular, HTML, CSS, JSP,