Ícaro C.

Top Rated Senior Full-Stack Engineer & Systems Architect with 7+ years of remote engineering experience for US companies, $100k+ earned, 5,000+ hours tracked on Upwork, and a 4.8★ track record across 20+ contracts. I deliver production-ready web platforms on fixed weekly milestones (starting at $400/week) backed by a 100% Delivery Guarantee or Money Back. If agreed weekly deliverables are not met, you receive a full refund with zero financial risk on your end. All my work is built on a strict framework of architectural decisions designed to guarantee predictable, high-speed execution using standard, zero-lock-in stack technologies (Next.js, React, TypeScript, and PostgreSQL). By setting clear rails for data models, UI state synchronization, and table-level authorization rules, this methodology eliminates technical debt at the root. It enables AI coding agents to assist in feature development safely under senior engineering oversight without introducing security gaps, breaking existing functionality, or drifting away from clean software patterns. This architectural foundation has been proven in production across complex applications. Using this approach, I engineered a full-stack Multi-Tenant B2B AI Platform featuring granular role permissions, approval queues, and AI workflows, maintaining complete structural integrity across rapid development cycles with AI coding agent assistance under strict architectural rules. Server actions, forms, and pages were added daily without breaking patterns. You can review the full case study on my website (message me and I will send you the link). To get started, send over your project specification, user flows, or feature requirements. I will review the scope and respond with a fixed weekly milestone plan, clear deliverables, and a complete delivery guarantee.