Matías Nicolás Núñez Rivas

Email: matias.nnr@gmail.com
Website: matiasnnr.com
LinkedIn: linkedin.com/in/matiasnnr

Table of Contents

• Profile
• Experience
  • Mercado Libre – Senior Software Engineer
  • Tata Consultancy Services – Full Stack Developer
  • Banco de Chile – Full Stack Developer
  • Starken – Software Engineer
  • EBCO – Freelance Mobile App Developer
  • Tonum – Mobile App Developer
• Languages
• Education

Profile

Full Stack Developer with 6+ years of experience in building and scaling applications across various industries. Skilled in both Frontend (React) and Backend (Node.js, Java with Spring Boot), with a proven track record of delivering high-quality solutions. Experienced in working within cross-functional teams to drive innovation and meet business objectives.

Experience

Mercado Libre – Senior Software Engineer

December 2022 - Present

Working in the advertising area of Mercado Libre, known as Mercado Ads, developing new functionalities to help clients manage their product advertising within the e-commerce platform. One of the platform’s main functions is allowing clients to add budgets to their ad campaigns and compete with other companies to improve sales, though it offers many other features as well.
Tech Stack: React, Node.js, TypeScript/JavaScript, GraphQL, Java, Spring Boot, Postman, and more.

Tata Consultancy Services – Full Stack Developer

November 2021 - December 2022

Worked on new functionalities in the shopping cart flow for Sodimac (part of the Falabella group) across Latin America, from adding a product to the cart and selecting the shipping location, through to customer payment and order confirmation.
Tech Stack: React, Next.js, Fastify with Node.js, TypeScript/JavaScript, Google Cloud Platform (Logs), Postman, and more.

Banco de Chile – Full Stack Developer

August 2021 - November 2021

Ensured continuity for mobile applications, resolving issues in both Frontend and Backend.
Tech Stack: React Native, Spring Boot, TypeScript, Java, Visual Studio Code, Postman, and more.

Starken – Software Engineer

October 2020 - August 2021

• Reduced passenger wait times by 70% using Firebase Cloud Messaging for Push Notifications.
• Standardized branch creation processes, reducing time by 45% using Here Maps integration.
• Streamlined password recovery by 60% with Amazon Simple Email Service.

Tech Stack: React, React Native, Nest, Spring Boot, TypeScript, Java, Docker, Jenkins, Visual Studio Code, Postman, and more.

EBCO – Freelance Mobile App Developer

March 2020 - June 2020

Developed a hybrid app that sped up work permit applications by 45%.
Tech Stack: Flutter, Dart, Android Studio (Android), Xcode (iOS), Firebase Realtime Database.

Tonum – Mobile App Developer

April 2018 - February 2020

Improved customer satisfaction by 35% through an online queue management system that allowed users to book and wait from anywhere.
Tech Stack: Swift and Xcode (iOS), Java and Android Studio (Android), Firebase Realtime Database.

Languages

• Spanish (Native)
• English (Fluent)
• Portuguese (Basic)

Education

Universidad Austral de Chile – Puerto Montt, Chile
Business Engineer, Bachelor of Science in Business Administration – September 2018

Talento Digital – Santiago, Chile
Full Stack Java Application Developer – October 2020