Full Stack Engineer

Open to full-time
Bio

Tomás F is a Full Stack Engineer with several years of experience in developing web and desktop applications across diverse industries. He specializes in React, TypeScript, and Node.js, building complex transactional systems and full-stack platforms. Tomás utilizes technologies like Electron for desktop applications, Express.js and PostgreSQL for backend solutions, and employs React Query and Material UI for optimized data handling and UI consistency. His development process includes full lifecycle management, from conception to deployment, ensuring robust application performance. Notable projects include the development of a desktop ticketing system for Exomindset, enhancing real-time ticket sales with reusable component architecture and complex workflows. Additionally, he created a full-stack administrative platform for Farmacia Alto Palermo, managing customer and healthcare plans with secure authentication and CRUD operations. Tomás holds a Full Stack Web Developer certification from Henry Bootcamp and a Bachelor's Degree in Music Composition from the National University of Córdoba. He is well-suited for roles involving the design and implementation of scalable applications, particularly those requiring a keen eye for user-centric design and efficient data management.

Expertise
ReactTypeScriptNode.jsNext.js
Video Intro
Assessments
APPLICANT AVG · 55%TOMÁS · 90%0255075100TopASSESSMENT SCORE (0–100)

General Coding and Video Assessment

(90/100)
  • Count Subarrays with Sum Equal to KEasy
  • Client-Side Authentication Failure InvestigationMedium
  • Discuss the Advantages of Context API vs. Redux in ReactHard
Projects

Accounts Payable App

A full-stack invoice and payment management application inspired by Ramp and Melio. Enables billing teams to create, approve, schedule, and pay vendor invoices with full PDF attachment support, role-based access control, and a clean dark-themed UI. Stack: React, TypeScript, Tailwind CSS, Redux Toolkit, Node.js, Express, Sequelize, PostgreSQL.

Universo Tickets Desktop App

Frontend developer on a production desktop ticketing system built with Electron and React, used by box office agents for real-time ticket sales. Implemented reusable component architecture and complex sales workflows, including authentication, filtering, cart management, and transactional flows. Integrated REST APIs using React Query and designed a scalable service-layer architecture for data handling. Stack: React, TypeScript, Electron, React Query, Material UI.

PharmaCareCRM

Ongoing full-stack pharmacy CRM platform developed in collaboration with a real pharmacy operation since 2024. Designed to support chronic patient follow-up, prescription renewal management, and operational workflows through administrative dashboards, prescription tracking, activity timelines, notification systems, drag-and-drop follow-up boards, and KPI reporting tools. Responsible for the complete software lifecycle including requirements analysis, database modeling, REST API architecture, authentication, frontend implementation, deployment, testing, and continuous product iteration based on real operational feedback. Built with React 19, TypeScript, Redux Toolkit, Tailwind CSS, Node.js, Express, Sequelize, PostgreSQL, and JWT. Deployed using Vercel and Railway.

Experience

  1. Frontend Developer

    Exomindset· E-CommerceJun 2025 — Apr 2026
    • Owned the frontend development of a production desktop ticketing system used by physical box office agents as part of an integrated event sales ecosystem (backoffice platform, online store, and PDA validation app).
    • Designed and implemented modular UI architecture using React and TypeScript, building reusable components for high-frequency transactional flows.
    • Developed complex sales workflows including authentication, ticket selection, cart management, dynamic pricing, filtering systems, delivery/return flows, and cash register closing modules.
    • Integrated REST APIs using React Query with caching strategies to optimize data synchronization and reduce redundant network requests.
    • Created reusable custom hooks and structured a scalable service-layer architecture for API communication.
    • Focused on UI consistency and usability using Material UI within an Electron-based desktop environment.
    • Implemented thermal printer integration, generating pixel-perfect PDF tickets and handling hardware communication within the Electron environment.
    • Contributed to a Next.js-based admin dashboard by implementing a new reporting page for print history, including data table rendering and filtering logic.
    ReactTypeScriptElectronReact QueryMaterial UINext.js

  2. Full Stack Web Developer

    Farmacia Alto Palermo· HealthTechOct 2024 — Nov 2024
    • Designed and developed a full-stack administrative platform for managing customers and healthcare plans.
    • Built secure authentication flows and implemented complete CRUD operations for client and plan management.
    • Designed RESTful APIs using Node.js and Express, connecting a React-based frontend with a PostgreSQL database.
    • Implemented a transactional points accumulation and redemption system tied to customer data records.
    • Managed the full development lifecycle independently, from database design to deployment.
    • Handled deployment and environment configuration using cloud hosting services.
    ReactReduxJavaScriptReactstrapNode.jsExpressPostgreSQLSequelizeNetlifyRailway

  3. Full Stack Web Developer

    Getback· Enterprise & SaaSMar 2023 — Oct 2023
    • Contributed to the development of a reverse logistics SaaS platform used by e-commerce businesses to manage product returns and exchanges.
    • Built and maintained multi-step transactional forms embedded into client websites for return/exchange processing.
    • Developed administrative dashboards for operations tracking, customer management, and return workflow monitoring.
    • Integrated third-party platforms such as VTEX, WooCommerce, and WordPress to extend return automation capabilities.
    • Debugged production issues using API inspection and structured logging with Winston, reviewing logs in AWS CloudWatch to identify and resolve backend and integration errors.
    • Collaborated in QA and testing processes to ensure system reliability and smooth user experience.
    ReactTypeScriptJavaScriptReduxNode.jsExpress.jsPostgreSQLSequelizeVTEXWordPressWooCommerce
Education

  1. Full Stack Web Developer

    Henry BootcampArgentina2022 — 2022

  2. Bachelor’s Degree in Music Composition

    National University of CórdobaCórdoba, Argentina2011 — 2018
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