Leonardo Rodrigues

Lead Full Stack Engineer
Campinas, BR.

About

Highly accomplished Lead Full Stack Engineer with extensive experience in developing and optimizing innovative B2B and B2C SaaS platforms, specializing in high-performance online gaming applications. Proven ability to architect scalable solutions, drive significant business value through technical excellence, and lead complex projects from concept to deployment.

Work

REGALTECH, LLC
|

Lead Software Engineer

Tampa, FL, US

Summary

Led the development and optimization of B2B and B2C SaaS gaming platforms, integrating complex payment systems and advanced analytics to drive market expansion and enhance user engagement.

Highlights

Architected and built comprehensive gaming platforms (sweepstakes, crypto-only, fiat, hybrid) with integrated blockchain/traditional banking systems and 20+ game providers.

Developed white-label casino management systems for 50+ brands, featuring multi-tenant architecture, back-office dashboards, and automated compliance workflows.

Engineered scalable platform architecture supporting 50,000+ daily users with 99.98% uptime and sub-50ms game latency, processing over $50M annually.

Implemented automated CI/CD pipelines, reducing release time by 80% while upholding enterprise security standards and PCI compliance for payment processing.

Designed mobile-responsive gaming interfaces with personalization and gamification, improving player retention rates by 45% and enabling rapid market expansion across 15+ jurisdictions.

Delivered advanced analytics platforms providing real-time data on player behavior, revenue, and operational performance to drive strategic business decisions.

VENTURUS, INC
|

Full Stack Developer

Campinas, SP, Brazil

Summary

Developed and optimized high-performance backend systems and scalable microservices architectures for R&D projects, enhancing system reliability and reducing operational costs.

Highlights

Architected and optimized high-performance backend systems for R&D projects, achieving a 40% improvement in system response times and enhanced reliability.

Implemented scalable microservices architecture using Node.js and TypeScript, supporting data-intensive research applications with PostgreSQL optimization and advanced query tuning.

Led AWS cloud infrastructure migration and management, reducing operational costs by 35% while implementing robust CI/CD pipelines for automated testing and deployment.

Collaborated with cross-functional research teams in Agile sprints, delivering backend solutions and ensuring seamless integration with existing research frameworks.

VENTURUS, INC
|

Development Intern

Campinas, SP, Brazil

Summary

Contributed to cutting-edge proof-of-concept development, mobile application creation, and IoT integration, accelerating innovation timelines and demonstrating rapid adaptability.

Highlights

Contributed to cutting-edge proof-of-concept development for emerging technologies, accelerating innovation timelines by 25% through rapid prototyping and technical feasibility analysis.

Developed cross-platform mobile applications using Flutter, creating native-like experiences for iOS and Android while maintaining unified codebase efficiency.

Implemented IoT integration solutions with Python and Node.js, enabling real-time data collection and processing for research projects involving connected devices and sensor networks.

Rapidly mastered new technologies and frameworks, demonstrating exceptional adaptability and contributing to experimental projects requiring quick iteration cycles.

GOOGLE SUMMER OF CODE
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Student Developer

Campinas, SP, Brazil

Summary

Developed a comprehensive Command Line Interface (CLI) for Spidermon, improving developer productivity and collaborating with an international open-source community.

Highlights

Developed comprehensive Command Line Interface (CLI) for Spidermon web scraping framework, improving developer productivity by 50% and simplifying project setup.

Implemented Test-Driven Development (TDD) practices for open-source contributions, ensuring high code quality and maintainability across a distributed development team.

Collaborated with an international open-source community, managing remote feedback cycles and contributing to project roadmap decisions impacting thousands of developers.

STOOM E-COMMERCE SOLUTION
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Full Stack Developer

Campinas, SP, Brazil

Summary

Delivered comprehensive e-commerce platforms for multiple clients, integrating complex systems and ensuring high transaction processing with robust uptime.

Highlights

Delivered comprehensive e-commerce platforms for multiple clients, integrating complex payment gateways, inventory management, and custom business logic, increasing client conversion rates by 30%.

Built scalable backend services using Java Spring framework with Hibernate ORM, managing high-transaction e-commerce databases and ensuring PCI compliance.

Managed simultaneous client projects with varying technical requirements, implementing custom API integrations and third-party service connections while maintaining 99.5% system uptime.

Education

STATE UNIVERSITY OF CAMPINAS
Campinas, SP, Brazil

Bachelor of Science

Computer Science

Languages

Portuguese
English

Skills

Databases

PostgreSQL, MySQL, Redis, Supabase, Neon.

Cloud & DevOps

AWS, Docker, CI/CD, GCP, Fly.io, Cloudflare.

SaaS Platforms

Payment Integration, Multi-Tenancy, Analytics, Subscription Management.

Artificial Intelligence

OpenAI, Anthropic, Vercel, Vertex, Elevenlabs.

Soft Skills

Problem-Solving & Innovation, Communication, Leadership & Collaboration.

Methodologies & Practices

Research, Business & Strategy, Testing, Agile, Test-Driven Development (TDD).

Frontend Development

React, Next.js, Vue.js, TypeScript, Tailwind CSS, React Query.

Backend Development

Node.js, Python, Fastify, Django, BullMQ, Celery, WebSocket, Microservices.

Leonardo Rodrigues