Leandro D.Back-end and Systems Engineer
Skills
Backend-focused developer with four years of professional experience in the industry. As a lead developer, I focus on backend development and have expertise in creating, maintaining, and enhancing various technological stacks. My experience spans web scraping, chatbot development, and comprehensive web development projects.
Notable projects include:
- Developed a micro-learning chatbot for Lys Academy, recognized as the top e-learning tool in Latin America, where I was responsible for creating, updating, and monitoring Celery routines using Python and Django.
- Managed infrastructure and led development for a UK-based clothing store, overseeing operations that extended to the US and Canada.
- Led backend development for CashOpera, a mobile app designed for travelers to trade foreign currency, implementing a REST API and background tasks with Celery using Python and Django.
In addition to my professional work, I am an active contributor to open source projects. I maintain the inject-it library, a dependency-injection micro library designed to facilitate testing and code management for developers. My involvement in the open source community also includes regular contributions to Django, where I assist newcomers and engage in forum discussions, and to the plathanus-tech/django_boilerplate project, which provides a comprehensive code style guide and directive for the Django framework. Other contributions include work on python-keycloak, FastAPI, and Celery.
Software Engineer
10/1/2021 - Present
Developed and maintained several high-traffic web projects accommodating thousands of users daily, including new product developments and mockups. Assumed a pivotal role in mentoring new developers, enhancing their competencies in web development, software design, clean code principles, testing, and industry best practices. Contributed to major Python frameworks and libraries, such as Django, FastAPI, and python-keycloak, by providing code contributions, documentation, translations, and participating in online support forums, with active involvement in community discussions.
Key responsibilities also included designing, implementing, and ensuring the quality of client projects, with a focus on mastering Python and Django to deliver superior products efficiently. Led the initiative to create a style guide and boilerplate for Django projects, ensuring clean, consistent code and providing guidelines for new developers.
Technological proficiency includes using Docker for containerization, leveraging Python frameworks and tools such as Django, FastAPI, Celery, Gunicorn, Selenium, Playwright, requests, and aiohttp. Managed infrastructure with Nginx, Traefik, AWS, and GCP, and maintained databases including PostgreSQL, MySQL, and Redis.Python Developer / Team Lead
10/1/2020 - 9/1/2021
Gained extensive experience as a Python developer, creating several applications for internal integrations, web scraping, and automation for various banking systems. Promoted to Lead Developer and managed a team of over 10 developers, delivering high-quality products for a rapidly growing fintech. Developed expertise in key software development frameworks and tools, including Flask, FastAPI, and Django for web applications; Celery for task queues; Selenium and Playwright for browser automation; Requests and Beautiful Soup (BS4) for web scraping; and PostgreSQL for database management. Demonstrated proficiency in server management using NGINX and containerization with Docker.
Building Technician at SENAI (National Service for Industrial Training)
2013 - 2015
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