leotonezi

Software Engineer

With 8 years of experience in software engineering delivering high-quality systems across healthtech, fintech, and SaaS, I care deeply about building reliable, maintainable solutions that create real value for customers. With a strong interest in applying intelligent systems to solve meaningful problems. I thrive in fast-paced environments where impact and continuous learning matter.

Experience: 5 years

Yearly salary: $100,000

Hourly rate: $60

Nationality: 🇧🇷 Brazil


Experience

Software Engineer
JAYCON SYSTEMS
2023 - 2025
Led final feature implementation and bug fixes for the ProductHubb platform using Node.js and React with TypeScript. Collaborated within an agile team to enhance the company’s ERP system, leveraging Python and the Frappe framework to deliver new features and improve system performance. Enhanced and maintained a Go-based system, automating its deployment with Terraform and Ansible on AWS. Also contributed to a Unity3D device testing and rewrote the SDK documentation for clarity and developer usability.
Software Engineer
ADVICEHEALTH
2022 - 2024
Maintained and improved a legacy PHP/Angular system, contributing to 3Ă— company growth over 3 years. Helped build a new platform from scratch using Python and React, following agile development practices. Participated in the full development cycle: planning, code reviews, sprints, and production deployments. Collaborated with PMs and the product owner to refine business logic and ensure system scalability.
Software Engineer
HANDSONYOURDIGITALTRANSFORMATION
2020 - 2022
Built and maintained full-stack applications for multiple clients, working with technologies like React, AngularJS, React Native, Laravel, Symfony, Django, and Flask. Contributed across diverse projects—from AR/VR apps to chatbots—using agile workflows with Trello and Slack for collaboration and task management.
Software Engineer
LUZ ENGENHARIA FINANCEIRA
2019 - 2021
Collaborated on a team maintaining a Django-based system that scraped and processed financial data to feed the company’s core platform, MITRA. Worked with Python and .NET in an agile environment to deliver accurate, scheduled market data integrations.

Skills

aws
crypto
nextjs
python
rust
solana
full-stack
english