Williams V.

Mobile & Full-Stack Engineer | Bringing Complex Ideas to the App Store & Google Play I am a Systems Engineer and Mobile/Full-Stack Developer with over 3 years of experience building secure, scalable, and high-performance applications. I specialize in taking digital products from zero to a successful launch, ensuring clean code, robust architectures, and an outstanding user experience. My strongest background lies in Fintech (crypto-asset management, payment gateways, virtual cards) and AI integrations (real-time conversational flows using Pipecat and ElevenLabs). I don't just write code; I design solutions that reduce development times, optimize latency, and scale with your business needs. 🛠️ Core Technologies & Skills: Mobile Development: Flutter, React Native, iOS & Android Deployment. Web & Backend: React, Next.js, Node.js, TypeScript, RESTful APIs. Database & Cloud: PostgreSQL, Firebase, Supabase, AWS. Specialties: Fintech Security, AI Audio/Text Integrations, Hardware Integration (POS/Printers), UI/UX Rebranding. As a former university Programming Teaching Assistant, I am deeply committed to SOLID principles, clear documentation, and maintainable architectures. Whether you need an MVP built from scratch, a complex third-party API integration, or a performance optimization for an existing app, I am ready to deliver production-ready results. Let's connect and discuss how we can bring your next project to life!