Portfolio of Ivan Arias — Junior GIS Developer and Geological Engineer based in Zaragoza, Spain. Building Web GIS apps with Python, React, Leaflet, ArcGIS, and AWS. 13+ years of geospatial expertise.https://www.hcoco1.com/https://www.hcoco1.com/blog/2026-04-06-oil-gas-gis/https://www.hcoco1.com/blog/2026-04-06-oil-gas-gis/A new stage in my journey: learning Web GIS and full-stack web development by directing Claude Code instead of writing every line myself.Mon, 06 Apr 2026 00:00:00 GMThttps://www.hcoco1.com/blog/2024-05-29-dashboard/https://www.hcoco1.com/blog/2024-05-29-dashboard/As parents, it is crucial to stay updated on your child's academic performance ...Wed, 29 May 2024 00:00:00 GMThttps://www.hcoco1.com/blog/2024-03-13-audits-tool/https://www.hcoco1.com/blog/2024-03-13-audits-tool/Since entering the IT world (one year ago), I have read many articles and blog posts about ...Wed, 13 Mar 2024 00:00:00 GMThttps://www.hcoco1.com/blog/2024-02-28-cloud-computing/https://www.hcoco1.com/blog/2024-02-28-cloud-computing/After graduating with a certification as a Software Engineer, I started exploring other fields like cybersecurity and cloud computing....Wed, 28 Feb 2024 00:00:00 GMThttps://www.hcoco1.com/blog/2024-02-18-cyber-career/https://www.hcoco1.com/blog/2024-02-18-cyber-career/Hey there, everyone! I'm super excited to kick off my adventure into cybersecurity....Sun, 18 Feb 2024 00:00:00 GMThttps://www.hcoco1.com/blog/2023-10-07-phase-5-final-project-blog/https://www.hcoco1.com/blog/2023-10-07-phase-5-final-project-blog/A navigation bar (or navigation system) is a section of a graphical user interface intended to aid visitors in accessing information.Sat, 07 Oct 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-09-21-phase-4-challenge/https://www.hcoco1.com/blog/2023-09-21-phase-4-challenge/Welcome to my comprehensive study guide designed to help you master Flask! This guide is divided into multiple modules, each focusing on a specific topic related to Flask, such as routing, database interactions, API development, and more.Thu, 21 Sep 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-09-04-whats-rss/https://www.hcoco1.com/blog/2023-09-04-whats-rss/Have you noticed the little RSS icons around the web? Or have you heard about RSS from friends or colleagues, but still, it remains a mystery to you? What does it mean, how does it work, and do I really need it?...Tue, 05 Sep 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-08-27-aggregate-functions-in-sqlalchemy/https://www.hcoco1.com/blog/2023-08-27-aggregate-functions-in-sqlalchemy/In this tutorial, I will use SQLAlchemy to perform aggregate operations on a database containing information about states, counties, cities, and government facilities....Sun, 27 Aug 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-07-01-creating-a-dynamic-table-in-react/https://www.hcoco1.com/blog/2023-07-01-creating-a-dynamic-table-in-react/In web development, tables are commonly used to display structured data in a tabular format. React provides various tools and libraries to create interactive and dynamic tables...Sat, 01 Jul 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-05-01-javascript-dynamic-list/https://www.hcoco1.com/blog/2023-05-01-javascript-dynamic-list/Since I had difficulty showing a list of items in the Document Object Model (DOM) in my final phase-1 Project. I decided to blog about DOM manipulation using Javascript.Mon, 01 May 2023 00:00:00 GMThttps://www.hcoco1.com/blog/2023-02-01-changing-careers/https://www.hcoco1.com/blog/2023-02-01-changing-careers/Changing careers is is exciting and intimidating, and some people think that starting a new job is challenging and impossible for adults and seniors ...Mon, 02 Jan 2023 00:00:00 GMT