Francisco Palacios
English

Open to new opportunities

Hi, I’m

Francisco Palacios

Frontend Developer

I build scalable web and mobile interfaces — and the systems behind them.

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Current
Frontend Developer · BDG
Based in
Jayaque, El Salvador
Years of experience
6+

About

A frontend developer who cares how things are built

Frontend developer with 6+ years building web and mobile products with React, React Native and TypeScript. I focus on scalable, reusable interfaces and the interaction details that make a product feel considered. I have led frontend teams, defined component architecture and integrated applications with REST APIs — and a backend background in Node.js and NestJS makes full-stack collaboration straightforward.

Languages

Spanish
Native
English
Professional working proficiency (B2/C1)

Experience

Where I’ve worked

Employment

Frontend Developer · BDG

Client Walmart Costa Rica

Jan 2026 – Present 8 mos

Current

Frontend development on BDG's client engagements, building interfaces to each client's requirements.

Full Stack Developer · Novacomp

Jan 2026 – Apr 2026 3 mos

Three-month full-stack project engagement on an existing web platform.

  • Reworked the UX/UI of the platform, improving its interface and interaction patterns.
  • Built new features into the existing web system.
  • Node.js
  • NestJS
  • React

Software Developer · System of the Box S.A. de C.V.

Apr 2021 – Sep 2025 4 yrs 5 mos

San Salvador, El Salvador

  • Built frontend applications with React and TypeScript.
  • Developed mobile applications with Ionic, React and TypeScript.
  • Led the frontend team technically and established shared engineering practices.
  • Worked alongside the backend and design teams throughout delivery.
  • Supported and maintained web and mobile applications in production.
  • React
  • TypeScript
  • Ionic
  • React Native

Analyst Developer · I-Strategies

Feb 2020 – Apr 2021 1 yr 2 mos

San Salvador, El Salvador

  • Built frontend applications with React, Angular and TypeScript.
  • Developed mobile applications with React Native.
  • Led the frontend team technically and established shared engineering practices.
  • Rotated across frontend, backend and design work.
  • Collaborated with the backend team using Node.js and Express.js.
  • Supported and maintained web and mobile applications in production.
  • Mentored interns and new team members.
  • React
  • Angular
  • TypeScript
  • React Native
  • Node.js
  • Express.js

Software Developer · Arisa Consulting S.A. de C.V.

Nov 2019 – Feb 2020 3 mos

San Salvador, El Salvador

  • Created and led the company’s process digitalization project, implementing a PHP–MySQL solution to streamline internal management.
  • Designed frontend interfaces with HTML5, jQuery, Bootstrap and CSS3, easing the move from manual to digital workflows.
  • Built interactive features with Ajax.
  • PHP
  • MySQL
  • HTML5
  • jQuery
  • Bootstrap
  • CSS3
  • Ajax

Independent work

Software Developer · Freelance

Environmental claims platform · US-based client

Sep 2025 – Aug 2026 11 mos

Web application for registering, tracking and resolving reports of illegal tree felling.

  • Flutter
  • Dart
  • Firebase
  • Node.js

Software Developer · Freelance

Institutional projects system

2024 – 2025

Web platform for administering and tracking government initiatives.

  • React.js

Full Stack Developer · Freelance

Private educational institution

2024

  • Built a system with React.js, NestJS and MongoDB covering enrollment, grades, student records and online payments.
  • Designed and developed a React Native app with NestJS and MongoDB to manage transport routes, students and digital payments.
  • React.js
  • React Native
  • NestJS
  • MongoDB

Skills

What I work with

  • Frontend

    • React
    • TypeScript
    • JavaScript
    • HTML5
    • CSS3
    • Tailwind CSS
    • Angular
    • Astro

  • Backend

    • Node.js
    • Express.js
    • NestJS
    • MySQL
    • PostgreSQL
    • MongoDB
    • REST APIs
    • GraphQL
    • Java

  • Mobile

    • React Native
    • Ionic (Angular & React)
    • Flutter (Dart)

  • Tools & Infrastructure

    • Git
    • GitHub
    • Docker
    • Vite
    • Figma
    • AI tooling

  • Architecture & Practices

    • SOLID
    • Clean Code
    • Component reuse
    • Frontend team leadership

Selected work

Things I’ve built

Client work, in-house products and personal projects. Most are private, so there are no public links.

A VaultDeploy credential page: host, port, database and username shown in plain text, while the password and connection string stay masked behind a “Reveal” control.

2026

VaultDeploy

Personal project: a multi-tenant SaaS that centralizes deployment credentials for development agencies. Each organization is an isolated tenant, with secrets masked by default, encrypted at rest and shared credential by credential — and an audit trail behind every reveal.

  • NestJS
  • React
  • TypeScript
  • MongoDB
  • Docker

  • 3D Virtual Fair

    Web

    Virtual trade-fair platform where exhibitors and visitors meet in a 3D environment.

    • Angular
    • TypeScript

    Angular 10.0.4

  • Financial Services Admin & Mobile App

    Web & Mobile

    Administrative web panel paired with a mobile app for end users of a financial services provider.

    • React
    • React Native

    React 16.3.2 · React Native 0.60.0

  • Online Banking

    Web

    Internet banking interface for account holders.

    • React

    React 16.13.1

  • Student Management System

    Web

    Full-stack platform for managing student records, built on a React frontend with a NestJS API.

    • React
    • TypeScript
    • NestJS

    React 18.2.0 · NestJS 9.0.0

  • Ticket Management App

    Mobile

    Mobile app for creating and following support tickets.

    • React Native
    • TypeScript

    React 17.0.2 · React Native 0.68.2

  • Enterprise Social Network

    Web

    Internal social network for communication and collaboration inside an organization.

    • Angular
    • TypeScript

    Angular 11.0.5

  • Minor Student Management App

    Mobile

    Mobile app for managing records of underage students.

    • Ionic
    • React
    • TypeScript

    Ionic 7.2.0

  • Event Management Admin

    Web

    Administrative web application for organizing and running events.

    • Angular
    • TypeScript

    Angular 9.1.6

Background

Education & certifications

Education

  • Technician in Computer Systems Engineering

    ITCA FEPADE

    Feb 2017 – Oct 2019 · Santa Tecla, El Salvador

Certifications

  • Advanced English Course Certificate

    English for Call Center (E4CC)

    2025

  • React Native: Native Applications for iOS and Android

    Udemy

    2022

  • JavaScript: Creating a Loan EMI Calculator

    Udemy

    2021

  • CCNA1

    CISCO

    2019

  • IT Essentials

    CISCO

    2019

Recognition

  • Recognition Diploma for a hotel and restaurant management platform

    Chamber of Commerce of Guatemala, Quetzaltenango branch

    2024

Contact

Let’s talk

I’m open to frontend and full-stack roles, and to interesting freelance work. The fastest way to reach me is email.

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