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Carlos

Full-Stack JavaScript Engineer
Profile
Specialization:

Frontend-Focused Full-Stack Developer

Based in:

Santo Domingo, Rep Dom.

Email:

caracenasosa@gmail.com

Introduction

I'm Carlos Aracena
Full-Stack JavaScript
Developer.

Download ResumeDownload Cover Letter

JavaScript Full Stack Developer with a strong focus on frontend engineering, building scalable and high performance web applications. Experienced delivering platforms across fintech, telecommunications, and travel industries. Highly adaptable across technologies, with hands on experience working beyond the JavaScript ecosystem including Java and .NET when projects require it.

Years of Experience

Telecom · Banking · Travel-Tech

Multi-Industry Experience

Github Projects Done

About

Turning Complex Systems Into Simple, Human-Centered Interfaces

I’m a full-stack engineer with a strong focus on modern front-end development, specializing in React, Next.js, TypeScript, and Angular. While frontend is where I’m strongest, I also have solid backend experience with Node/Express.js/Nest.js and relational databases like PostgreSQL and Oracle, as well as non-relational systems such as MongoDB. This allows me to understand and build full feature flows end-to-end. I blend clean engineering with thoughtful UI design to create fast, intuitive, and reliable user experiences.

Over the past several years, I’ve delivered production systems across travel-tech, telecom, and banking—building payment flows, internal dashboards, operational tools, and data-driven interfaces used daily by real customers and enterprise teams. Whether developing reusable component libraries, integrating secure APIs, or optimizing performance for large datasets, my goal is always the same: create modern, human-centered products that make complex tasks feel simple.

Projects
View All Projects

Work Projects

Claro Dominican Republic Customer Platform
FullstackTypescriptJava Spring BootCMS2024

Claro Dominican Republic Customer Platform

Built scalable full stack features for Claro Dominican Republic’s high traffic platform serving millions nationwide.

Personal Projects

Threads Social Network
FullstackNext.jsExpress.jsTypescriptMongoDB2026

Threads Social Network

Built a full stack social network with Next.js and Express.js supporting 20 to 40 active users and designed with an architecture capable of scaling to thousands.

Stock Market App
FullstackReact Native (Expo)TypescriptNestJSWeb SocketPrismaDockerJWT2026

Stock Market App

Real time stock tracking mobile app built with React Native and NestJS, featuring live market updates, interactive charts, secure Auth0 authentication, and personalized price alerts.

Pokédex App
FrontendReact.jsTypescriptSASSTanstack Query2025

Pokédex App

Modern Pokédex web app built with React and TypeScript featuring search, filtering, evolutions, and detailed Pokémon stats with a fast and responsive interface.

Movie Tracker (Legacy)
FrontendReact.jsJavascriptTMDB API2020

Movie Tracker (Legacy)

Movie discovery app built with React and the TMDb API, originally created in 2020 and recently modernized to React 18 with deployment on Vercel.

Skills

My Favorite Tools

Typescript
Typescript
Javascript
Javascript
.NET
.NET
Java
Java
HTML
HTML
CSS/SCSS
CSS/SCSS
Tailwind CSS
Tailwind CSS
Bootstrap
Bootstrap
Ant Design
Ant Design
React.js
React.js
Next.js
Next.js
Angular
Angular
Node.js
Node.js
Express.js
Express.js
Nest.js
Nest.js
MongoDB
MongoDB
PostgreSQL
PostgreSQL
Docker
Docker
AWS
AWS
Resume

Practical Experience And Education

With a background in software engineering and hands-on experience across front-end, backend, and full-stack development, I’ve worked on production systems in travel-tech, telecom, and banking. From payment flows and internal dashboards to responsive web apps, each project has strengthened my focus on building clean, reliable, and intuitive digital experiences.

Work Experience

Jun 2024 - Present

Senior Frontend Developer

Course by Travcoding · Remote · United States

Leading front-end development for travel-tech platforms, building booking, payment, and operations tools using React, TypeScript, Redux, SCSS, and Stripe integrations. Delivering high-performance UI experiences for hotels, rentals, and travel agencies.

Jun 2021 - Jun 2024

Senior Software Engineer

Course by Claro Dominicana · Remote

Developed and maintained enterprise web applications for the largest telecom company in the Dominican Republic. Built internal tools for plan management, penalty calculations, and customer operations using React, Java, .NET, and Oracle.

Jul 2019 - Jun 2021

Full Stack Senior Developer

Course by Asociación Popular de Ahorros y Préstamos (APAP) · Remote

Implemented financial systems for savings, credit, and mortgage operations. Built Angular, Next.js, and Nest.js applications, developed SQL procedures, and optimized internal tools for loan processing and financial product management.

Jan 2019 - Jul 2019

Project Business Analyst (Contractor)

Course by Banco Popular Dominicano · On-site

Coordinated communication between business stakeholders and development teams. Gathered requirements, validated system flows, and helped ensure successful delivery of banking software projects.

Education

Jan 2020 - Mar 2023

Engineer's Degree, Computer Software Engineering

Course by Universidad APEC

Engineering program focused on software architecture, programming, databases, and systems analysis.

Sep 2017 - Mar 2020

Software Technologist

Course by ITLA

Training in software development, algorithms, databases, and web technologies.

Certifications & Courses

Issued Oct 2025

Generative AI Fundamentals

Course by Databricks

Introduction to generative AI concepts, large language models, and practical applications.

Issued Oct 2025

Postman API Fundamentals Student Expert

Course by Postman

Hands-on course covering REST APIs, HTTP requests, collections, and API testing workflows.

Issued Apr 2024

EF SET English Certificate (C1 Advanced)

Course by EF SET

English proficiency certification at an advanced C1 level.

Issued Dec 2020

Introduction to Database

Course by ITLA

Fundamentals of SQL, relational models, and database design.

Issued Nov 2020

Desarrollo de Software Seguro Basado en OWASP

Course by Ministerio de Industria y Comercio

Secure software development practices based on OWASP standards.

Issued Oct 2020

Google Cloud Platform Fundamentals: Core Infrastructure

Course by Coursera

Core concepts of GCP: compute, storage, networking, IAM, and cloud deployment.

Issued Jun 2020

Scrum Foundation Professional Certification (SFPC)

Course by Certiprof

Training in Scrum principles, Agile methodologies, and team workflows.

Issued Aug 2019

Angular Basics for Absolute Beginners

Course by Udemy

Introduction to Angular components, routing, TypeScript, and application structure.

Issued Jan 2019

Fundamentals of Web Programming

Course by Udemy

Training in HTML, CSS, Bootstrap, JavaScript, and responsive UI development.

Issued Oct 2018

Introduction to Programming Using JavaScript

Course by Udemy

Core JavaScript syntax, functions, DOM manipulation, and problem-solving foundations.

View on LinkedIn →
Recommendations

LinkedIn Recommendations

Sammy Hernández

Sammy Hernández

QA Automation at Asociación Popular de Ahorros y Préstamos

Sammy worked with Carlos José on the same team • February 3, 2024

Es un placer recomendar a Carlos José Aracena como un profesional altamente talentoso y experimentado en el campo del desarrollo de software. Durante el tiempo que trabajamos juntos, quedé impresionado por su habilidad para abordar desafíos complejos y entregar soluciones de alta calidad. No solo demuestra un profundo conocimiento técnico, sino que también posee una visión estratégica que contribuyó significativamente al éxito de nuestros proyectos. Su capacidad para liderar equipos técnicos y colaborar eficazmente con otras áreas funcionales es ejemplar.

View on LinkedIn →
© 2025 Carlos Aracena. All rights reserved.