Open to opportunities

Leonardo Ventura

@leonardoventura

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Full-stack developer delivering scalable, performant, secure web and mobile solutions.

Brazil

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What I'm looking for

I seek roles building end-to-end, scalable web or mobile platforms with strong engineering practices, CI/CD, cloud infrastructure, and opportunities to improve performance, maintainability, and security.

I am a full-stack developer with over six years of experience building scalable, performant, and secure web and mobile solutions for startups, agencies, and medium to large companies.

I handle the full lifecycle from technical planning to delivery, specializing in backend and frontend development with JavaScript (React, Node.js) and Python (Django, Django REST, Flask), and converting Figma prototypes into responsive interfaces.

I implement CI/CD pipelines, automated testing, Docker-based deployments, and cloud migrations (AWS, Vercel), while applying Clean Code, SOLID principles, and performance testing with Locust to ensure maintainability and high throughput.

I work autonomously and in agile teams (Scrum/Kanban), offering technical consulting on architecture, integrations, and security-focused API development to deliver reliable, production-ready platforms.

Experience

Work history, roles, and key accomplishments

Current

Full-stack Developer

Current

Freelancer

May 2016 - Present (9 years 8 months)

Delivered tailor-made digital platforms for startups and companies focusing on scalability, maintainability, and performance; implemented RESTful APIs, payment gateway integrations, and CI/CD with Docker and GitLab to enable weekly automated deliveries.

React Django Docker CI CD Payment Integration API Design Cloud Migration

Full-stack Developer

Gauge

Dec 2023 - Jul 2025 (1 year 7 months)

Created and optimized web solutions using Django CMS, implemented Django REST APIs, and improved application speed and responsiveness through code and database optimization. Automated CI/CD pipelines with Git and Jenkins and converted Figma prototypes into responsive interfaces.

Django Django REST Framework JavaScript Git Jenkins CI CD Performance Optimization

Full-stack Developer

Huia

Nov 2021 - Sep 2022 (10 months)

Built and maintained web and mobile applications using Django CMS and Strapi, designed scalable architectures, and implemented Docker, Jenkins, and GitLab pipelines to ensure reliable automated deliveries. Delivered end-to-end solutions with automated testing and agile practices.

Django Strapi Docker Jenkins Automated Testing Scalability