Description

Backend & Full-Stack Developer (Node.js, Go, Next.js) | Scalable APIs & Web Apps

I’m a Backend Developer with 5+ years of experience building scalable systems, APIs, and microservices for high-traffic products. I currently work as a Backend Engineer at Mercado Libre, developing solutions focused on performance, reliability, and scalability at enterprise level.

I specialize in Node.js and Go, with strong expertise in:

Designing and building RESTful APIs

Microservices and clean architectures

Third-party API integrations (payments, WhatsApp, marketplaces)

SQL optimization and backend performance tuning

Process automation and production-ready backends

In addition to backend development, I also have solid frontend experience, building:

Landing pages focused on conversion and performance

Full web applications using Next.js and JavaScript

End-to-end solutions where backend and frontend work seamlessly together

I’ve worked on fintech, e-commerce, and internal platforms, both in startups and large-scale environments. I like to understand the business problem, propose simple and effective solutions, and deliver clean, maintainable, and well-tested code.

🔹 How I can help

Build backends from scratch (MVPs and production systems)

Develop full-stack web applications (backend + frontend)

Implement complex system integrations

Refactor and optimize existing backends

Develop scalable services in Go or Node.js

Provide short-term support or fixed-scope projects

I’m looking to collaborate with clients who value technical quality, clear communication, and reliable delivery.

Languages

English
Native or bilingual
Spanish
Native or bilingual
French
Conversational

Workplace preferences

Remote only

Primarily works remotely

Mercado Libre
Software Backend Developer
June 2024 - Today (2 years and 2 months)
Buenos Aires, Argentina
As a Software Backend Developer at Mercado Libre, I specialize in developing scalable and efficient backend solutions using Golang as the primary technology. As part of the Mercado Créditos fintech team, I contribute to creating innovative financial services that enhance the ecosystem of Mercado Libre. My work involves leveraging cloud based technologies like AWS and GCP, along with Fury, Mercado Libre s proprietary cloud infrastructure platform, to build high-performance and reliable applications.
GO Node.js JavaScript MySQL Next.js
Top Value Brands
Software Engineer
February 2024 - Today (2 years and 6 months)
Top Value Brands is an Amazon FBA eCommerce company. As a Software Engineer, I lead the development of an inventory management system and collaborate closely with both the team and the client to deliver robust solutions. I take part in client meetings, lead technical discussions, and manage the team to ensure project goals are met e ectively Key Achievements , Designed and implemented an API using Node.js to integrate with Amazon SP-API and Keepa API for seamless communication and inventory tracking , Registered Amazon account inventory, analyzing product data, including taxes, pricing, and stock levels , Developed an algorithm to identify potential purchase opportunities through data analysis and calculations , Automated the generation of purchase orders (POs), enabling admin approval and PDF downloads
Argano Connect
Software Engineer
July 2022 - February 2024 (1 year and 7 months)
As a Junior software engineer at ArganoConnect, i collaborate with a team of developers, project managers, tech leaders, QA testers, and designers to work on a variety of different projects. My role involves using my expertise in technologies such as React JS, Node JS, WordPress PHP, HTML, CSS, and JavaScript to create innovative and effective solutions for our clients. Depending on the specific needs of each project, i work with a team to decide which technologies are most suitable for the job.
• - Team work
• - Understand the client s requirements, designing and developing software solutions.
• - Testing & Debugging code to ensure high-quality deliverables
• - SCRUM