Results-driven Principal Engineer with over 20 years of experience building fast, scalable solutions for U.S. companies. Throughout my career, I have tackled projects across diverse industries such as insurance, fintech, payments, logistics, e-commerce, telecommunications, and automotive. Passionate about solving tough problems and improving software architecture to create excellent user experiences. Web3 / Blockchain enthusiast.
📍 Location: Brasília, Brazil (Remote, UTC to UTC-7) 📧 Email: ricardo.cunha@gmail.com
Remote, USA
- 🏗️ Technical Leadership: Reporting directly to CTO, leading frontend and backend teams, managed a team of 6 developers fostering strong communication and collaboration
- 🤖 AI Solutions: Designed AI agent applications using RAG, LLM chains to extract data and populate the data layer, built data flows using N8N to integrate external public data reducing manual data collection by 90%
- ☁️ Cloud Architecture: Designed AWS cloud solutions and new products, handled Infrastructure as Code using Terraform ensuring 100% fit between environments configuration
- ⚡ Performance Optimization: Reduced API load time by 60% through implementing caching strategies and performance improvements
- 🛡️ Disaster Recovery: Developed multi-region AWS EKS deployments for high availability, hitting the company's SLA for the last 4 years
- 🚀 Innovation: Drove product innovation using Agile methodologies, enforcing programming best practices
- 🗄️ Database Expertise: Database design for MySQL, PostgreSQL, and NoSQL ensuring high-quality, efficient, and maintainable solutions
Tech Stack:
Remote, USA
- 🔍 Company Acquisitions: Evaluated companies for acquisition, stabilized, automated, and centralized all products reducing 70% of failures in the process
- 🔄 Reverse Engineering: Reverse-engineered multiple products, creating detailed design diagrams, planning infrastructure migration, and defining optimal team size
- ✅ 100% Success Rate: Successfully integrated external products from Sococo, ScaleArc, Symphony Commerce, Layer, Infinio, and Street Smart AI
- 🏗️ Infrastructure Migration: Managed migration and replaced infrastructure with cost-effective solutions achieving better ROI
- 🔐 Authentication: Hands-on coding for authentication platforms across the company
- 💳 Payment Gateway: Designed and implemented payment gateway system as bridge for Stripe, PayPal running over Kafka integrated to Symphony Commerce
- 🏦 Fintech: Improved the Upgrade financial platform, building scalable systems for loan origination flows, rewards tracking, personal loans, and flexible payment solutions
- 📊 Performance: Enhanced Sococo's real-time analytics by optimizing MongoDB schemas, indexes, and query operations
Tech Stack:
Remote, Brazil
- 🎨 Frontend Architectures: Developed frontend architectures for the E-Learning internal platform, enabling efficient, testable, scalable, and modular development
- 🏗️ React & Angular: Built architecture for React.js (ES6) and Angular using Webpack and Jest
- 👥 Mentoring: Mentored junior developers in 2 international teams (Netherlands and USA)
Brasília, Brazil
- 🏛️ Corporate Architecture: Responsible for improving, implementing, and integrating company-wide insurance solutions
- ⚡ Modernization: Successfully migrated legacy JSF projects to modern React/Go applications, improving response time by 30% and reducing server resources by 40%
Brasília, Brazil - CNPq (National Council for Scientific and Technological Development)
- 📈 Process Optimization: Increased grant approval efficiency by 30% through strategic process optimization initiatives
- 🎯 Enterprise Applications: Led enterprise app development, managing design, performance, scalability, and integration for quality solutions
Brasília, Brazil - Correios (Brazilian Post Office)
- 📦 SARA System: Developed and maintained SARA, an automation system for Brazilian Post using Java Swing, integrating printers, pin pads, and scales
- 🔧 Refactoring: Refactored peripheral integration reducing integration time by 60%
- 📈 Performance Improvement: Improved performance by 70% implementing caching strategies and reducing payload size
✔ Kubernetes (EKS, GKE)
✔ AWS
✔ GCP
✔ Terraform
✔ GitHub Actions
✔ GitLab
✔ Prometheus
✔ Grafana
✔ Docker & Containerization
✔ Go (Golang)
✔ Java
✔ GRPC
✔ Python
✔ Node.js
✔ Django
✔ GraphQL
✔ NestJS
✔ MySQL
✔ PostgreSQL
✔ DynamoDB
✔ Cassandra
✔ Redis
✔ Elasticsearch & OpenSearch
✔ MongoDB
✔ Kafka
✔ SQL
✔ MCP (Model Context Protocol)
✔ RAG (Retrieval-Augmented Generation)
✔ LLM Chains & Finetuning
✔ N8N Data Flows
✔ Angular
✔ React
✔ Solidity
✔ Geth
✔ Solana
✔ EVM
- 🌐 Remote Work Expert: Experienced in remote, agile teams
- 🔍 Independent Problem Solver: Proactive attitude towards complex challenges
- 🧹 Clean Code Advocate: Committed to clean, testable, efficient code
- 📚 Continuous Learner: Fast learner, passionate about new ideas and AI agents
- 🚀 Full-Stack: Comfortable in startup environments and full end-to-end work (frontend, backend, infra)
- 💬 Fluent Communicator: Fluent English speaker and communicator
Bachelor's Degree in Computer Science
Centro Universitário de Brasília (UniCEUB) - 2008
- 🇺🇸 English: Proficient
- 🇪🇸 Spanish: Intermediate
- 🇧🇷 Portuguese: Native
I'm always interested in discussing cloud architecture, AI solutions, and innovative software development. Feel free to reach out!
"Passionate about solving tough problems and improving software architecture to create excellent user experiences. Web3 / Blockchain enthusiast."