**Ming-Jen Chang**
Software Engineer / Developer × Data Scientist / Analyst
+1 (714) 329-5947
mjchang023@gmail.com
mingjen-chang

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### **PROFESSIONAL PROFILE**
- 6+ years of software development specializing in **Computer Vision, Image Processing, Data Processing, Data Analytics, and Deep Learning Models**, with focus on **Human Action Recognition, Vehicle Recognition, and Emotion/Expression Recognition**
- 4+ years of hands-on experience in **NLP, Data Forecasting, Data Visualization, Data Mining, and Database Management**
- 2+ years of **Android development (Java)**, specializing in **User Interface Customization and Automatic Testing**
- Tech enthusiast with expertise in **Deep Learning and Data Science**, passionate about learning new technologies

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### **SKILLS**
**Programming:** Python, C#, Java, C++, R, SQL, JavaScript
**Platforms:** Hugging Face, GitHub, Docker
**Libraries:** TensorFlow, Keras, Caffe, PyTorch, NumPy, OpenCV, OpenVINO, Spark, Pandas, Hadoop
**Systems:** Windows, Linux, Ubuntu, MacOS
**Deep Learning:** Object Detection, Facial Recognition, Human Action Recognition, Vehicle Detection & Recognition, Face × Emotion × Expression Recognition
**ML/DL Models:** CNN, 3D-CNN, Faster-RCNN, YOLO-v4, VGG-16, LSTM
**Image Processing:** Sequence images (video), deep image, Medical Image

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### **PROFESSIONAL EXPERIENCE**

#### **Data Analytics/Science Researcher (Full-Time Student)**
*University of Illinois at Chicago (UIC), Chicago, IL* | *2022–2024*
- **Scalable Similarity Image Search Engine** (Computer Vision & Image Similarity, Python)
- Used ResNet-50 to extract feature embeddings for efficient retrieval of top-k similar images in ImageNet
- **Purchase Website with SQL Server** (SQL & .Net)
- Built a trade system with front-end/back-end integration using SQL Database and C#
- **Amazon Co-Purchasing Analysis** (Large Data Processing & Clustering, R)
- Analyzed and clustered Amazon co-purchasing data to identify product relationship patterns
- **Credit Default Forecasting** (Data Processing & Forecasting, Python)
- Predicted credit default with 82% accuracy using ML algorithms
- **Airlines Analytics via Tableau** (Data Visualization & Analytics)
- Visualized Delta/Alaska Airlines flight delays to identify common causes

#### **Research & Development Software Engineer**
*PEGATRON CO., Taipei, Taiwan* | *2020–2022*
- **Facial Expression & Emotion Recognition** (C++, Ubuntu)
- Implemented YOLO-v4 with OpenVINO and 64 landmark points for real-time recognition
- **Vehicle Detection & Recognition System** (C++, Ubuntu)
- Trained DL models on ARM devices (Raspberry Pi, Nvidia Jetson Nano)
- **Indoor Positioning System** (Java, Android, Ubuntu)
- Used Bluetooth signals and proprietary algorithms for precise indoor tracking
- **Automated Android Compatibility Testing** (Java, Ubuntu)
- Reduced testing time by 60% by automating 10+ manual processes
- **Automatic IC Chip Image Labeling** (Python, Ubuntu)
- Cut labeling time by 90% using a trained DL model
- **Data Management Server** (Python, Ubuntu)
- Built an internal image data management system for department-wide projects
- **Customized Android UI** (Java, Ubuntu)
- Modified volume interface and main page volume bar

#### **Computer Vision Researcher**
*Computer Vision and Image Understanding Lab, NTNU, Taipei, Taiwan* | *2016–2019*
- **Thesis:** *Vision-Based Human Action Recognition for Moving Cameras via Deep Learning*
- **Publication:** *Proceedings of SPML 2019 (pp. 85–91)*
- Achieved **96.4% accuracy** by integrating RGB, depth, and optical flow sequences into modified 3D-CNNs

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### **RELEVANT EXPERIENCE**
- **Facial Recognition Registration System** (C#) – Real-time ID verification via Webcam + FaceSDK
- **Human Face Detection** (C#) – Detected faces across skin tones/angles using Haar algorithm
- **Auto-Generated Image Hashtags** (Python) – Used Faster-RCNN for object detection and hashtag generation
- **Cross-Platform Medical Image System** – Developed multi-device solutions for medical image editing

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### **EDUCATION**
**University of Illinois at Chicago (UIC)** – *Chicago, IL*
*MS in Business Analytics (STEM)* | *May 2024*

**National Taiwan Normal University (NTNU)** – *Taipei, Taiwan*
*MS in Computer Science & Information Engineering* | *July 2019*

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