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Alexander G.

Alexander G.

Interactive Web Apps | Three.js, React & Data Visualization

I build interactive web applications, AI-powered tools, custom dashboards, engineering calculators, and 2D/3D visualizations that help businesses solve practical problems. I'm a software developer with 6+ years of experience building web services and interactive applications. My work includes engineering calculation tools, medical visualization, interactive maps, 3D applications, and product catalogs with intelligent search. ### WEB APPLICATION DEVELOPMENT I can help you develop a new web application, add features to an existing product, or build a custom tool around your business workflow. Services include: * Custom web application development * JavaScript and React development * Frontend development and API integration * Interactive dashboards and data visualization * Custom calculators and configurators * Canvas-based editors and interactive interfaces * Database integration and data-driven applications * Bug fixing, feature development, and performance optimization ### THREE.JS, WEBGL & INTERACTIVE 3D I develop browser-based 3D experiences and interactive visualizations using Three.js, A-Frame, and JavaScript. Examples of what I can build: * 3D product configurators and model viewers * Interactive 3D maps and environments * Scientific and engineering visualizations * 3D model loading and optimization * Interactive simulations and spatial interfaces * Web-based 2D/3D tools ### AI-POWERED APPLICATIONS & CHATBOTS I also work with AI features that make web applications more useful and automate repetitive business tasks. Potential solutions include: * AI-powered product search using natural-language descriptions * Chatbots connected to business databases and APIs * WhatsApp and other messaging-platform integrations * Product assistants that answer questions about prices, availability, and specifications * AI-assisted data processing and workflow automation * Search systems combining semantic search and traditional database queries The goal is to connect AI to reliable business data rather than rely on generated answers alone. ### CUSTOM TOOLS FOR SPECIFIC INDUSTRIES I've worked on applications involving engineering calculations, solar energy, medical 3D visualization, interactive maps, smart catalogs, etc I can help turn complex data or an existing manual workflow into a practical web application with a clear interface. ### TECHNOLOGIES JavaScript, React, Three.js, A-Frame, Canvas API, Konva.js, HTML, CSS, REST APIs, SQL, Python, and AI integrations, Notion API, Vector Search, RAG. ### HOW I WORK I start by clarifying the required functionality, existing systems, and technical constraints. Then I break the work into manageable milestones, implement the solution, and test the important user flows. I value clear communication, realistic estimates, maintainable code, and solutions that address the actual business problem. If you have an idea for an interactive application, AI assistant, custom calculator, or automation tool, feel free to describe it. I can help define a practical implementation approach and the first development milestone.

🇨🇱Antilhue, Chile$40/hr100% JSS4.91 (14)Since Dec 2008

Earnings and projects

MRR
$330

Last 6 months ÷ 6

World#94,666 / 412k
🇨🇱Country#119 / 501
Revenue, last 30 days
$0

Last 6 months: $2k

Total earnings
$11k

Billed in all: $11k

World#188,021 / 412k
🇨🇱Country#213 / 501
Per project
$396

$2k in the last 6 months

World#204,926 / 412k
🇨🇱Country#215 / 501
Projects, last 6 months
1
100% fixed0% hourly
World#128,092 / 412k
🇨🇱Country#138 / 501
Projects in all
28

Across 32 contracts

81% fixed19% hourly
World#103,224 / 412k
🇨🇱Country#84 / 501

Earnings, last 30 days

$11.3kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$11.0k$11.2k$11.4k$11.6kOct 8Oct 23Nov 7

Skill rankings: Top 15% in pandas

Ranked by MRR among everyone on Upwork with the skill.

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  2. #160Three.js703 freelancers · 🇨🇱 #1Top 23%
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  5. #384Flask2,438 freelancers · 🇨🇱 #1Top 16%
  6. #753Dashboard2,955 freelancers · 🇨🇱 #1Top 25%
  7. #1,153Data Visualization5,110 freelancers · 🇨🇱 #1Top 23%
  8. #1,534CSS 39,914 freelancers · 🇨🇱 #1Top 15%