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Software Developer & Student

Leonardo Gotardo

Building embedded systems, REST APIs, and web applications. Passionate about learning hard things — from IoT hardware to full-stack development.

GitHub · LinkedIn · Email

About

Software Developer based in Londrina, Brazil. Currently working at IrisPay — a Brazilian fintech converting traditional machines into smart vending systems via proprietary payment technology — where I work across the full stack: embedded systems, automation, REST APIs, sockets, cryptography, IoT, and web development.

Pursuing a degree in Analysis and Systems Development at IFPR while building side projects that push me to learn new areas — from cryptography and GUI programming to building and publishing Python libraries on PyPI.

Location
Londrina, Brazil

Languages
Portuguese (Native) · English (Full Professional)

Education
Analysis & Systems Dev — IFPR

Focus
Embedded · IoT · REST APIs · Web

Experience

Software Developer — IrisPay Sep 2024 — Present

Brazilian fintech converting traditional machines into smart vending systems. Londrina-PR, Brazil.

Embedded systems development and hardware programming
REST API development and integration
IoT development with NFC and RFID hardware
Web development for internal and client-facing systems
SSH remote management and socket communication

Service Desk — Persis Internet Jul 2023 — Mar 2024

Regional ISP with 100k+ clients. Londrina-PR, Brazil.

Solved complex network issues interpreting ambiguous customer descriptions
Delivered high-quality technical support under pressure

Skills

Languages: PythonJavaScriptTypeScriptJavaCHTMLCSSLuaBash

Backend & APIs: FlaskFastAPILaravelREST APIWebSocketJWTSQLAlchemy

Frontend: ReactViteTailwind CSSReact Router

Databases: MongoDBMySQLPostgreSQLSQLite

Systems & Hardware: LinuxSSHEmbeddedNFCGPIOThreadingSocket

Tools: GitPyPIIoTVercel

Projects

ReportGen Feb 2026 — Present

Web tool for generating professional technical reports with ABNT formatting and severity classification.

Live · GitHub

MainDug Web Dec 2024 — Present

Full-stack web password manager with JWT authentication and encrypted storage. React SPA with RESTful backend.

Live · GitHub

Custom Thread Jun 2024 — Present

Python library extending the standard threading module with return values, exception propagation, and callbacks. Published on PyPI.

PyPI · GitHub

ipTool Mar 2026 — Present

Geographic IP lookup tool with interactive Leaflet map, IPv4/IPv6 validation, and detailed network data.

Live · GitHub

noHarmBack 2025 — Present

FastAPI backend for an addiction recovery app. Real-time chat via Socket.IO, AES-256 encryption, Neon PostgreSQL, deployed on Vercel.

GitHub

Contact

Open to new opportunities and interesting projects. Let's build something together.

leonardo.gotardo2@gmail.com
LinkedIn · GitHub