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Hi, I’m Zhenyun Sun, a GIS software engineer and spatial analyst based in Milan. I design and implement end-to-end geographical data systems, building robust back-end services with Java Spring Boot and large-scale data pipelines with Apache Spark.\n\nI also develop WebGIS visualizations with Vue.js and ECharts, and I have hands-on experience with ArcGIS/QGIS extensions to deliver mapping solutions for government, industry, and research projects.…Hi, I’m Zhenyun Sun, a GIS software engineer and spatial analyst based in Milan. I design and implement end-to-end geographical data systems, building robust back-end services with Java Spring Boot and large-scale data pipelines with Apache Spark.\n\nI also develop WebGIS visualizations with Vue.js and ECharts, and I have hands-on experience with ArcGIS/QGIS extensions to deliver mapping solutions for government, industry, and research projects.

Zhenyun Sun

Full Stack Developer, Back-End Developer, Web Developer, +4

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Hi, I’m Zhenyun Sun, a GIS software engineer and spatial analyst based in Milan. I design and implement end-to-end geographical data systems, building robust back-end services with Java Spring Boot and large-scale data pipelines with Apache Spark.\n\nI also develop WebGIS visualizations with Vue.js and ECharts, and I have hands-on experience with ArcGIS/QGIS extensions to deliver mapping solutions for government, industry, and research projects.…Hi, I’m Zhenyun Sun, a GIS software engineer and spatial analyst based in Milan. I design and implement end-to-end geographical data systems, building robust back-end services with Java Spring Boot and large-scale data pipelines with Apache Spark.\n\nI also develop WebGIS visualizations with Vue.js and ECharts, and I have hands-on experience with ArcGIS/QGIS extensions to deliver mapping solutions for government, industry, and research projects.

Available to hire

Hi, I’m Zhenyun Sun, a GIS software engineer and spatial analyst based in Milan. I design and implement end-to-end geographical data systems, building robust back-end services with Java Spring Boot and large-scale data pipelines with Apache Spark.\n\nI also develop WebGIS visualizations with Vue.js and ECharts, and I have hands-on experience with ArcGIS/QGIS extensions to deliver mapping solutions for government, industry, and research projects.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Chinese

Fluent

English

Fluent

Italian

Advanced

Work Experience

Backend Developer at Polimi GIS Lab

July 1, 2025 - November 6, 2025

Developing a meteorological data integration and analysis platform for the Lombardy region, implementing backend APIs and data processing pipelines with Spring Boot and PostgreSQL.

GIS Backend Engineer at Shanghai Maili Marine Technology Co., LTD

August 1, 2023 - August 1, 2023

Analyzed and processed large-scale vessel traffic data, leveraging Java Spring Boot and Apache Spark to build a scalable backend order management system, containerized with Docker for consistent deployment and CI/CD integration.

Web GIS Development Engineer at Shanghai Maili Marine Technology Co., LTD

February 1, 2022 - February 1, 2022

Processed and cleaned unstructured backend data using hashing and regression techniques, developed RESTful APIs with Spring Boot, and deployed backend services for frontend integration. Independently built a data visualization web platform (Vue.js + ECharts) to monitor port-level big data in real time.

GIS Software Engineer at Polimi GIS Lab

June 1, 2015 - November 1, 2015

Individually designed and developed an integrated meteorological monitoring and analysis platform for the Lombardy region.

GIS Software Engineer at Shanghai Maili Marine Information Technology Company (Hifleet.com)

January 1, 2021 - August 1, 2023

Developed a global marine traffic heatmap (big data) generation system and traffic order system. Built a WebGIS visualization platform for the marine management department. Designed and maintained spatial data storage with PostGIS and Cassandra, enabling high-performance queries. Daily spatial data processing and analysis with spatial libraries (geopandas, shapely, GDAL) and machine learning methods to support the marine traffic department. Published and maintained map services like GeoServer (WFS/WMS), Mapbox, and created thematic maps with ArcGIS / QGIS.