Senior Full-Stack Engineer with 8+ years of experience building scalable, high-performance web applications using modern JavaScript frameworks (React, Next.js, Angular) and backend technologies (Node.js, Python, .NET/C#, Java). Proven expertise in architecting cloud-native solutions on AWS, Azure, and Google Cloud, with deep knowledge in microservices CI/CD automation. Passionate about writing clean, testable code and continuously learning new technologies.
Systematically breaking down complex problems into manageable components, identifying root causes, and understanding stakeholder requirements.
Evaluating multiple approaches, considering trade-offs, scalability, and maintainability to design robust solutions.
Breaking down solutions into iterative phases, establishing clear success criteria, and planning for potential challenges.
Continuously monitoring, measuring, and improving system performance based on data-driven insights.
Experience my critical thinking process through an interactive scenario
Your e-commerce platform is experiencing slow page load times during peak hours. How would you approach this problem?
What would you investigate first?
Hands-on experience solving complex technical challenges across diverse industries
Analyzed e-commerce security requirements, evaluated shipping logistics solutions, designed multi-layered payment architecture, and implemented comprehensive inventory tracking.
Researched DeFi security best practices, analyzed gas optimization techniques, designed oracle architecture, and created intuitive UI for complex financial operations.
Analyzed device performance characteristics, studied monetization psychology, designed retention algorithms, and architected scalable server infrastructure.
Analyzed video processing requirements, evaluated AI model trade-offs, designed privacy-first architecture, and implemented cloud-native scaling solutions.
Analyzed AI API cost structures, designed content quality algorithms, created user-friendly interfaces, and implemented fair usage policies.
Analyzed gas optimization techniques, designed decentralized storage architecture, implemented anti-bot systems, and created community engagement features.
Analyzed banking security requirements, studied Islamic finance regulations, designed high-performance architecture, and implemented comprehensive audit systems.
Analyzed search requirements, designed content management architecture, implemented recommendation systems, and created mobile-first user experience.
Analyzed global scaling requirements, designed localization architecture, implemented community features, and optimized performance for international users.
Demonstrating critical thinking skills across diverse technical challenges
High-value product security, international logistics, fraud prevention, and scalable inventory management systems.
Smart contract security, gas optimization, decentralized applications, and Web3 infrastructure development.
Cross-platform optimization, monetization strategies, user retention algorithms, and scalable server architecture.
Real-time video processing, AI model optimization, cost management, and privacy-compliant solutions.
Banking security, regulatory compliance, high-frequency transactions, and comprehensive audit systems.
Global scaling, content localization, search optimization, and community engagement features.
Deep dive into complex problem-solving scenarios
A sophisticated fraud ring was targeting our high-value foil board sales ($10K+ per item), using stolen credit cards and fake identities to place orders worth over $500K monthly.
Analyzed fraud patterns: IP addresses, device fingerprints, order timing, and shipping addresses
Identified high-risk factors: new accounts, high-value orders, international shipping, and suspicious payment methods
Designed multi-layered fraud detection system with real-time scoring and manual review workflows
Implemented ML-based fraud detection with 50+ risk factors and real-time scoring
Added SMS verification, email confirmation, and address verification for high-value orders
Built real-time monitoring dashboard with automated alerts and manual review queues
Our DeFi platform was experiencing suspicious trading patterns and potential smart contract vulnerabilities that could expose user funds worth millions of dollars.
Conducted comprehensive security audit of all smart contracts and identified potential vulnerabilities
Analyzed potential attack vectors: flash loans, reentrancy attacks, and price manipulation
Implemented multi-signature wallets, time locks, and emergency pause mechanisms
Implemented 3-of-5 multi-signature wallets for all critical operations
Added emergency pause functionality with time-delayed execution
Built 24/7 monitoring system with automated alerts and manual intervention
A production database was experiencing 15+ second query times during peak hours, causing user complaints and revenue loss.
Gathered query execution plans, server metrics, and user behavior data
Discovered missing indexes on frequently queried columns and inefficient JOIN operations
Designed composite indexes and query optimization strategies
Created composite indexes on (user_id, created_at) and (category_id, status)
Rewrote complex JOINs using EXISTS clauses and subqueries
Implemented Redis caching for frequently accessed data
How I approach complex technical decisions
Gather comprehensive data from multiple sources to understand the current state and identify patterns.
Clearly articulate the problem, its impact, and success criteria before jumping to solutions.
Generate multiple solution approaches and evaluate them against defined criteria.
Plan the implementation with clear phases, milestones, and rollback strategies.
Measure results, gather feedback, and iterate based on real-world data.
Feedback from team members and stakeholders
"Eduardo's systematic approach to problem-solving transformed how our team handles complex technical challenges. His ability to break down problems and communicate solutions is exceptional."
"Working with Eduardo on performance optimization was eye-opening. His data-driven approach and attention to detail resulted in a 95% improvement in our system's response time."
"Eduardo's critical thinking skills are unmatched. He consistently identifies the root cause of issues and proposes elegant solutions that consider both technical and business implications."
I'm always interested in discussing complex problems and innovative solutions