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cardenasj97/README.md

Hello, welcome to my page ๐Ÿ‘จโ€!

๐Ÿ‘‹ ๐—›๐—ถ, ๐—œโ€™๐—บ ๐—๐˜‚๐—ฎ๐—ป, ๐—ฎ ๐—™๐˜‚๐—น๐—น-๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ with 6+ years of experience building web applications with React, TypeScript, Node.js, and PostgreSQL.

I help companies build reliable product experiences, improve development workflows, and ship scalable features across frontend and backend systems. My experience includes building robust interfaces, API integrations, migration scripts, shared UI systems, and internal tools that improve both user experience and team efficiency.

Some results from my work include:

  • Improved the processing time of a CLI workflow from ๐Ÿฐ๐Ÿฌ ๐—บ๐—ถ๐—ป๐˜‚๐˜๐—ฒ๐˜€ ๐˜๐—ผ ๐Ÿฎ ๐—บ๐—ถ๐—ป๐˜‚๐˜๐—ฒ๐˜€, enabling faster data loading across multiple countries and endpoints
  • Built an internal web tool that ๐—ถ๐—บ๐—ฝ๐—ฟ๐—ผ๐˜ƒ๐—ฒ๐—ฑ ๐—บ๐˜† ๐˜๐—ฒ๐—ฎ๐—บโ€™๐˜€ ๐—ฝ๐—ฒ๐—ฟ๐—ณ๐—ผ๐—ฟ๐—บ๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ฏ๐˜† ๐Ÿด๐Ÿฌ%
  • Developed migration scripts to transfer ๐Ÿฎ๐Ÿฌ,๐Ÿฌ๐Ÿฌ๐Ÿฌ+ ๐—ถ๐˜๐—ฒ๐—บ๐˜€ between user accounts while preserving data integrity
  • Built a CSV import flow capable of handling ๐Ÿญ๐Ÿฌ,๐Ÿฌ๐Ÿฌ๐Ÿฌ+ ๐—ฟ๐—ผ๐˜„๐˜€ ๐—ฒ๐—ณ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜๐—น๐˜† with validation and normalization
  • Developed interfaces for tables, forms, bulk edits, and batch-processing workflows using React
  • Built REST API endpoints and third-party integrations with platforms like ๐—ฒ๐—•๐—ฎ๐˜†, ๐—˜๐˜๐˜€๐˜†, ๐—ฎ๐—ป๐—ฑ ๐—ฆ๐—ต๐—ผ๐—ฝ๐—ถ๐—ณ๐˜†
  • Contributed to the migration from ๐—ฅ๐—ฒ๐—ฎ๐—ฐ๐˜ ๐Ÿญ๐Ÿด ๐˜๐—ผ ๐—ฅ๐—ฒ๐—ฎ๐—ฐ๐˜ ๐Ÿญ๐Ÿต of a main module and 4 frontend submodules, helping maintain compatibility and consistency across the ๐˜€๐—ต๐—ฎ๐—ฟ๐—ฒ๐—ฑ ๐—จ๐—œ ๐—ฎ๐—ฟ๐—ฐ๐—ต๐—ถ๐˜๐—ฒ๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ
  • Implemented an automated session timeout mechanism with configurable logout behavior and ๐—ฐ๐—ฟ๐—ผ๐˜€๐˜€-๐˜๐—ฎ๐—ฏ ๐˜€๐˜†๐—ป๐—ฐ๐—ต๐—ฟ๐—ผ๐—ป๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป using the Broadcast Channel API
  • Contributed to reusable components and shared frontend modules to support consistency and scalability across applications

Fluent in ๐—˜๐—ป๐—ด๐—น๐—ถ๐˜€๐—ต ๐—ฎ๐—ป๐—ฑ ๐—ฆ๐—ฝ๐—ฎ๐—ป๐—ถ๐˜€๐—ต.

Open Source Contributions

Pinned Loading

  1. ai-interviewer ai-interviewer Public

    AI Interviewer

    TypeScript

  2. notes-app-1 notes-app-1 Public

    A multi-tenant markdown notes application with AI-powered summaries, role-based access control, and real-time search.

    TypeScript

  3. booking-system booking-system Public

    TypeScript

  4. financial-agent financial-agent Public

    Python

  5. connect-4-react connect-4-react Public

    JavaScript

  6. sticky-notes-app sticky-notes-app Public

    TypeScript