Lautaro Oleastro

Experience and education

Mercado Pago

Backend Go Developer

From June 2024 to present

Working as a Golang backend developer in the Mercado Pago ecosystem.
Focusing on solutions for the platform's seller management system.
Processing and handling large volumes of data (millions of transactions per day)
Hybrid work model. Continuous training and professional development.

Development of REST APIs for high-traffic applications
Microservices architecture for scalable and maintainable systems
Relational and non-relational databases (MySQL, Key-Value-Store and others)
Cross-functional teams collaboration, code reviews, and pair programming
Monitoring and observability (Datadog, Grafana and others)
Passive guard rotation using Atlassian products
Continuous integration and deployment practices
Agile methodology with Scrum framework and daily meetings
Emphasis on SOLID principles, Clean Architecture and Design Patterns.

AI-Enhanced Development

Leveraging modern AI tools to boost productivity and code quality, including:

Cursor for intelligent code assistance
ChatGPT, Gemini and others for problem-solving and documentation
InStore solutions utilizing AI capabilities for business optimization
Experience on AI agents and automated workflows to improve development processes.

Mercado Pago

Mercado Libre

IT Bootcamp - Backend Java Developer

From April 2024 to June 2024

Qualified for an intensive 3-month paid internship, specializing in Java.

Spring framework for enterprise application development
Relational and non-relational databases design and implementation
Unit Testing and test-driven development
Agile practices like Scrum methodology and daily meetings
Version control workflows with Git
Application security, monitoring and performance
Collaborative work with bootcampers
Daily supervision from 1st level teachers
Contact with Mercadolibre experts

Successfully completed the program and then decided to transition to Golang.

Mercado Libre

Freelance

Python Developer

From 2023 to 2024

I worked as a freelancer, managing my own time to develop paid projects
for private clients and some personal projects.

Developed a desktop application for a private client using Tkinter.

I used Django framework and PostgreSQL databases for personal projects.

I also used Bootstrap for basic frontend and Git for version control.

Some of my projects

National University of La Plata (UNLP)

University Programmer Analyst

Graduated in 2022

Algorithms and Data Structures
Software Engineering practices
Object Oriented Programming
Software Design Patterns
Database design and manipulation
Operating Systems theory

Academic history

Mobiuspace

Content Operations Analyst

From 2019 to 2022

Content management for different multimedia applications
(Zapee, Snaptube and Lark Player).

Distributed work environment
Collaboration with colleagues from different countries
Remote work with daily meetings
Python scripts to automate tasks
Content management and push notifications
Weekly analysis of consumption trends

Projects

Artesian

Desktop application for an Ice-Cream factory.
It is used to label products (ice cream buckets), manage their stock and ship them.

Stack: Python, Tkinter, SQLite, SQLAlchemy.

Details

Platform

Desktop

Language

Python

Framework

Tkinter

Database

SQLite (local)

ORM

SQLAlchemy

Features

Add, Modify, Delete records
RS-232 serial communication
Generate unique barcodes
Export and print information

Description

This is a desktop application for managing a local ice cream factory. The complete system works as follows:

The user can manually add ice cream flavours, with their respective identification number and legal number (denoted as RNPA).
The system is connected via RS-232 to a scale, on which the user can place the recently produced ice cream buckets.
From there, all that remains is to select the flavor to log the bucket into the system. At the same time, it prints the respective label with all the information of the bucket.
The label has information on the flavor, weight, legal codes, production date, expiration date and a barcode (so the bucket can be scanned later).
The label is printed on a sticker and placed on the bucket.
This bucket is stored into the industrial fridge and is already recorded into the system so the user can manage their stock more efficiently.

The user can export this data to excel and generate reports and analysis.

When the user wants to send a batch of buckets to the sales branch, it is necessary to scan the desired buckets to ship and generate the dispatch list. All those selected buckets will now be tagged as "Shipped" and the dispatch list will be generated in PDF format.

AutosArg

Website for buying and selling used cars.
Uses car make-model database to fill each listing's car info.

Stack: Python, Django, PostgreSQL, Bootstrap 5.

Details

Platform

Web

Language

Python

Frameworks

Django, Bootstrap 5

Database

PostgreSQL

ORM

Django's ORM

Flood Prevention

Website focused on flood awareness and prevention in the city of La Plata, as well as evacuation plans in case of emergency.

Stack: Python, Flask, MySQL, SQLAlchemy, Bootstrap 5.

Details

The flooding of the City of La Plata occurred in April 2013. With more than 400 mm of rain that accumulated in just 4 hours, the drainage systems were not enough... Unfortunately, human lives were lost and the damage caused in the city were huge.

This web page was part of the subject "Software Project". The main objective is to prevent and raise awareness about floods.
Modules:

Meeting points: To gather evacuees in case of emergency and provide help.
Evacuation routes: For efficient evacuation.
Flood zones: To inform residents so that they can be avoided.
Complaints: Users can report clogged sewers, garbage dumps or any incident that obstructs proper drainage.

It is a web page composed of two applications: one private for management and another public for access by end users (connected to the first through API endpoints).

Platform

Web

Language

Python

Frameworks

Flask, Bootstrap 5

Database

MariaDB

ORM

SQLAlchemy

Private app

Public app

Hello I'm

Lautaro Oleastro

Software Developer

Projects

I am available for freelance work!

Contact