Xinjian Zhang
中文 | English | Български
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Xinjian Zhang

Phone: +372-58099350


LinkedIn: LinkedIn Profile

GitHub: GitHub Repo


University of Tartu & Tallinn University of Technology

MSc Software Engineering | CGPA: 4.5/5 | 2023-Present, Estonia

Lancaster University & Beijing Jiaotong University

BSc Hons Computer Science & BEng Computer Science and Technology | CGPA: 3.58/4 | 2019-2023, UK, China


Independent Software Developer, UI Designer

07.2022 – 09.2023

  • Development specializing in HTML5, JavaScript, Python and Ruby
  • Hybrid mobile app development, prioritizing functionality, aesthetics
  • User-centric UI/UX designs emphasizing simplicity, functionality, and visual appeal


Research on the Urgency of Carbon Emission Issues from Sewage Plants


  • Quantified and visualization prediction model analyzes the carbon neutrality among sewage carbon emissions
  • MATLAB, Python, Regression Analysis, Power BI

Database Backup and Management System


  • Comprehensive database management system to facilitate efficient backup and restoration of SQLite databases
  • Java, JDBC, SQLite, File I/O operations, DB Metadata

IoT-Based Health Monitoring System


  • Web-end and Android-end health monitoring system
  • Arduino, ESP8266, Web Socket, Spring Boot, MyBatis, MySQL, Hybrid App, HTML5, Node.js

3D Convolutional Neural Network for Medical Image Analysis


  • 3D CNN model using Keras and TensorFlow for classifying and segmenting medical imaging data
  • Implemented custom data pipelines and advanced neural network architectures
  • Utilized GPU acceleration and robust evaluation metrics
  • Python, NumPy, Pandas, Keras, TensorFlow, PyTorch, Matplotlib, Scikit-learn, CUDA


Software Development

  • JavaScript, HTML, CSS, Python, C#, Java, Ruby, Node.js, React, Vue.js, AngularJS, Express.js, Rails, Spring Boot

Data, Modeling, Analysis/Management

  • MS Excel, R, SQL, MATLAB, UML, BPMN, Data Analysis, Business Process Management, Software Product Management, Requirements Engineering, A/B Testing


  • Photoshop, Sketch, Figma


Chinese: Native

English: C1 (IELTS Academic 7.0)

Bulgarian: Intermediate

Japanese: Elementary (JLPT N5)

Estonian: Elementary