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Citigroup — Senior Software Developer (Tech Lead) (2023 – Present)

• Led enterprise platform engineering initiatives for distributed data and microservices systems within regulated financial environments, supporting 40MM+ daily records using Java, Python, and Apache Airflow.
• Designed and built cloud-native ETL and backend service platforms from scratch, improving processing performance by 100% while supporting enterprise-scale surveillance and risk management systems.
• Participated in Citi’s early AI/ML platform preparation initiatives, contributing to TensorFlow, PyTorch, and scalable infrastructure efforts supporting future LLM integration and enterprise AI adoption.
• Built and explored Retrieval-Augmented Generation (RAG) solutions using internal knowledge sources and wiki-based datasets, including vector database preparation, embedding workflows, prompt orchestration, and secure API integration patterns.
• Worked with multiple internal AI modules and collaborated with AI specialists across different platform components, focusing on integrating distributed AI capabilities into cohesive enterprise workflows.
• Familiar with OpenAI-style LLM integration patterns, token-based consumption models, observability, and scalable AI service architecture.
• Currently evolving from traditional “human-in-the-loop” AI workflows toward agent-oriented architectures with supervisor patterns and orchestration strategies.
• Served as technical SME and Designated Responsible Individual (DRI), leading architecture, deployment automation, production support, and cross-functional collaboration with compliance, product, and engineering teams.

IMAX — Software Engineer (2022 - 2023)

• Engineered high-performance, real-time systems for dual-lens commercial laser projectors, supporting major high-frame-rate (HFR) releases like Avatar 2.
• Designed gRPC-based services and system-level components for multi-product platforms to ensure low-latency communication.
• Led modernization efforts to transition legacy systems toward 12-factor app principles and cloud-ready architectures.
• Boosted developer productivity by restructuring software architecture and establishing comprehensive technical documentation.

Ezi Tech - SaaS / Cloud Developer (2019 – 2022)

• Architected a cloud-based SaaS platform using Microservices and Domain-Driven Design (DDD), supporting thousands of tenant websites.
• Drove full-stack development of backend APIs and frontend applications, achieving a 97% positive customer feedback rate post-launch.
• Optimized large-scale search algorithms to enable dynamic, data-intensive reporting workflows.

Cloud Tech - CTO (2015 - 2017)

• Directed technology strategy for a 50-employee startup providing smart home and hotel solutions.
• Developed an online quiz system featuring early face recognition and biological activity detection for colleges.
• Engineered specialized systems, including fire alarm monitoring and high-performance drones for geological surveys.

China Telecom - Software Developer (2011 - 2015)

• Maintained mission-critical CRM systems in partnership with Oracle, processing millions of data points daily.
• Led a development team in creating OA supporting systems and mobile applications from scratch for marketing and finance departments.

Master in Computer Science University of Windsor

2017 to 2018, Windsor, ON, CA

Major: Applied Computing
Minor: Artificial Intelligence

Bachelor in Software EngineeringDalian Nationalities University

2007 to 2011, Dalian, Liaoning, CN

Major: Embedded Development
Minor: Inofrmation System

YIJU

Real estate platform built with DDD architecture, distributed systems, and full-stack mobile/web development.

• Built iOS, Android, React frontend, and backend APIs end-to-end.
• Designed high-performance geospatial search with distributed system architecture.
• Demo: https://www.tabtu.cn/demo_yiju.html
• App: https://www.yijuca.com/yiju/gddtl
• API Docs: https://api.yjezimoc.com/doc/index.html

Customized Order Form Platform

Full-stack SaaS ordering system with AI-assisted support and vector-based search.

• Built full web platform with separated frontend and backend architecture using PostgreSQL.
• Integrated OpenAI GPT assistant to reduce customer support workload and improve efficiency.
• Implemented vector-based search for enhanced data retrieval and user experience.
• Demo: https://test.divogy.com/
• Delivered ~70% increase in customer orders through system automation and AI assistance.

Online Quiz System

Early AI-enabled exam system with computer vision-based identity verification.

• Developed face recognition and behavior detection using custom-trained deep learning models (early-stage AI work).
• Deployed for academic quiz and homework systems in production use.
• Demo: https://www.tabtu.cn/demo_olqz.html

System Architect Engineer (Senior) (2015)

Qualification Certificate of Computer and Software Technology Proficiency

Software Design Engineer (Intermediate) (2013)

Qualification Certificate of Computer and Software Technology Proficiency

Telecommunication Engineer (Junior) (2012)

Qualification of Telecommunication Professional