Daniel Domínguez
Santo Domingo, D.R. · GMT-4

Hi! My name is
Daniel Domínguez
Junior Mobile & Front End Developer

<p> .NET · React · React Native / Flutter — designing and shipping production APIs and cross-platform apps end to end. </p>

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About Me

I'm a Software Engineer graduated from Instituto Tecnológico de Santo Domingo (INTEC), with hands-on experience across backend, frontend and mobile development. I currently build production services with .NET 8 and Entity Framework Core at Seguros Reservas, consumed by React and React Native (Expo) applications, and I founded SOT — Service On Time, a full-stack service marketplace I architected end-to-end. I move comfortably across the full stack, translate business requirements into working, tested code with minimal supervision, and use AI-assisted tools (GitHub Copilot, Claude) in a human-in-the-loop workflow to ship faster while keeping code quality high.

Daniel Domínguez working at his desk

Experience

Where I've worked & what I've built

Software Engineer – New Projects

Mar 2024 – Present
Seguros Reservas
  • Design and develop backend services with .NET 8 and Entity Framework Core, consumed by web and mobile platforms.
  • Maintain and enhance an Electronic Invoicing system integrated with DGII, ensuring regulatory compliance and reliability.
  • Led development of a Payment Link Generator system, improving operational efficiency for insurance intermediaries.
  • Write and maintain unit tests (xUnit) and implement CI/CD pipelines to automate deployment on Azure.

Founder & Lead Developer

2024 – Present
SOT – Service On Time
  • Architect and build a full-stack service ecosystem end-to-end — client app, provider app, admin panel and backend APIs — used for national-level service distribution.
  • Own product and technical decisions across backend, frontend and mobile, translating business needs directly into shipped features.

Education

Software Engineering — INTEC Jan 2020 – Oct 2024

Capstone: Vaccination Records Management System — a multi-role platform (patients, clinics, administrators) with dashboards, role-based access and automated reminders, replacing manual paper-based processes.

Complementary Studies in Mathematics & Computing — University of Łódź, Poland Feb 2023 – Jul 2023

Coursework in Interface Design, Code Error Correction, Windows GUI Programming and Introduction to Java.

Certifications

  • Scrum Foundation Professional Certificate (SFPC) — CertiProf
  • Accredited Software Testing Fundamentals Certification (ASTFC) — AICS®
  • C# Certificate — SoloLearn
  • Python Core Certificate — SoloLearn
  • Data Curator Certification — Carlos Slim Foundation

Skills

Technologies & tools I use daily

Backend & Languages

C# .NET 8 ASP.NET Core Entity Framework Core TypeScript JavaScript Node.js Python xUnit Moq SQL Server PostgreSQL

Frontend & Mobile

React Vue.js React Native Expo Flutter HTML5 CSS3

Cloud & Tools

Firebase Azure CI/CD Git Figma AI-assisted Dev

How I Work

Teamwork Problem Solver Fast Learning Organization Dedication Logical Thinking

Featured Projects

The ones I'm most proud of
Founder & Lead Developer

SOT — Service On Time

National-level service marketplace connecting clients with verified providers in real time. Architected and built end-to-end — client app, provider app and admin panel — backed by a NestJS API with payments, commission settlement and moderation built in.

SOT Service app icon

SOT Service

SOT Provider app icon

SOT Provider

Admin Panel

NestJS Flutter Next.js PostgreSQL Google Maps Firebase Cloud Messaging
Visit sot.com.do
Mobile Developer

QuivApp — Golf Cart Rental Platform

Cross-platform mobile application for renting golf carts, designed and developed from scratch for iOS and Android. Integrates secure in-app payment gateways and DocuSign for digital contract signing, consuming external APIs over a secure backend.

Built from scratch for iOS & Android with Flutter
Secure in-app payment gateway integration
Digital contract signing powered by DocuSign
Consumes external APIs over a secure backend
Flutter iOS Android In-app Payments DocuSign REST APIs
Independent Developer

Planea — Finanzas en Pareja

Personal project, in active development: a mobile app that helps couples in the Dominican Republic plan, budget and save together — shared and personal expenses, budgets, savings goals and debt payoff — without losing individual autonomy.

Shared & personal expenses with configurable visibility
Bank statement import from Excel, CSV and PDF
Supabase backend — PostgreSQL, Auth & Edge Functions
Push notifications via Firebase, monitored with Sentry
Flutter Riverpod Supabase PostgreSQL Firebase Cloud Messaging Sentry

Other Projects

More things I've built along the way

Completed

ETL Energy Dashboard img

ETL + Power BI - Energy Analytics

ETL completo con Python y SQL Server para transformar un dataset energético global y visualizarlo en Power BI. Dashboard interactivo con tarjetas, mapas y análisis por año, país y tipo de energía.

In Progress

SaaSInventoryApp img

SaaS to Manage Inventory

A SaaS application for managing inventory in an easy and simple way for small business. Made with Next.Js, Tailwind, Prisma and MongoDB.

In Progress

RecipeApp img

Recipe app IU Prototype

IU Prototype of a recipe mobile app made with Figma for a future project. It includes the main pages like Home, Favorites, Reels, and Profile.

In Progress

Creditcard Form img

Credit card Form

A simple credit card form made with HTML, CSS and JavaScript. The validation of the fields was done using regular expressions.

Completed

Paint App img

Paint Clone

A simple paint clone made with C# and Windows Forms. This app includes functionalities such as drawing lines, rectangles, circles, and free drawing.

Completed

Api-ecommerce img

E-Commerce RestAPI

API for an e-commerce platform developed, made with Node.js and Express.js. The database used is MongoDB.

Completed

ASCII-Converter img

ASCII Converter

A web site to converter characters to ASCII code and vice versa. Made with HTML, CSS and JavaScript.

Keep in touch

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