# My personal experiences and introduction

Hi, I am Jiajun Wang(Jesse as my nickname). I am currently a Master's student at FAU Erlangen-Nürnberg, combining a solid Engineering foundation with cutting-edge AI research.

Engineering Background: Experience in telecommunications and industrial automation, with granted patents for innovative system designs.

AI Research: Published author (BVM Conference) on fine-tuning Vision-Language Models (VLM). Currently researching Diffusion Models for medical image denoising.

Goal: I am actively seeking an internship in AI, Computer Vision, or Deep Learning. I bring a cheerful personality and a strong ability to bridge engineering challenges with advanced AI solutions.

# 📅 Work and Education History

### 🔬 Project Research Student

[**Pattern Recognition Lab, FAU Erlangen-Nürnberg**](https://lme.tf.fau.de/) | *Oct 2025 – Present*

*   **Focus:** Generative AI, VLM, Medical Imaging.
    
*   **Key Achievement:** Fine-tuned **MedGemma-4B** using **QLoRA** for CT image quality assessment.
    
*   **Outcome:** Paper accepted at the **German Conference on Medical Image Computing (BVM)**. Currently researching **Diffusion Models** for medical image denoising.
    

### 🎓 M.Sc. in Electromobility

[**Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)**](https://www.fau.eu/) | *Oct 2022 – Present*

*   **Specialization:** Artificial Intelligence, Deep Learning, and Computer Vision.
    
*   Transitioned from engineering to advanced AI research.
    

### 📡 TETRA System Test Engineer

[**Hytera Communications**](https://www.hytera.com/en/about-hytera/hytera-profile.html#hy-overview-1) | *Jul 2022 – Oct 2022*

*   **Deployment:** Configured TETRA digital trunking systems (BSCU, CHU) for public safety networks.
    
*   **Skills:** Root cause analysis using **Linux, Wireshark, and Xshell**.
    

### 🎓 B.E. in Automation

[**Xi'an Polytechnic University**](https://en.xpu.edu.cn/) | *Sep 2018 – Jun 2022*

*   **Major:** Automation Engineer Technology.
    
*   **Foundation:** Built a strong background in Control Systems and Hardware-Software integration.
    

### ⚙️ Engineering Intern

[**Esquel Group**](https://www.esquel.com/) | *Jul 2021 – Aug 2021*

*   **Innovation:** Designed a **PLC-based monitoring system** using position sensors to track roller displacement.
    
*   **Impact:** Reduced manual errors and secured **1 Invention Patent** & **1 Utility Model Patent**.
    

# 🛠 Skills

*   **AI & Deep Learning:** PyTorch, LLMs/VLMs (Fine-tuning, RAG), Diffusion Models, PEFT (LoRA/QLoRA), SFT, RLHF, Computer Vision.
    
*   **Programming:** Python, C, MATLAB.
    
*   **Tools & Platforms:** Linux, HPC, Docker, Git, Wireshark, Jira.
    
*   **Languages:** English (Professional), German (Basic), Chinese (Native).
    

# 🏔️ Beyond Work

### 🏃‍♂️ Active Lifestyle

I believe a healthy body fuels a creative mind.

*   🏂 **Snowboarding:** Passionate about carving through snow in winter.
    
*   🏊‍♂️ **Swimming:** Building endurance and focus in the water.
    
*   🥾 **Hiking & Travel:** Exploring nature and experiencing diverse cultures.
    
*   📷 **Photography:** Capturing life's moments and finding unique perspectives through both modern digital lenses and the timeless charm of classic vintage film cameras.
    

### 🥗 Healthy Habits

I maintain a disciplined lifestyle to stay at peak performance.

*   🚭 **Substance-Free:** Non-smoker and non-drinker.
    
*   🍬 **Conscious Diet:** Committed to a [**low-sugar lifestyle**](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/low-sugar-diet), strictly minimizing refined sugar intake for better health and mental clarity.
    

### ❤️ Social Impact

Giving back to the community is an essential part of my life.

*   *🧒* **Child Development:** Deeply care about the growth, education, and well-being of the next generation, actively supporting children's welfare through periodic charitable donations.