# André Silva - Senior Software Engineer

> Senior Software Engineer with 8+ years of experience specializing in Flutter, Dart, Go (Golang), PostgreSQL, Docker, and AWS. Proven track record in fintech, high-scale consumer applications (including Nubank, Jeitto, and Savana), mobile & web accessibility (WCAG 2.2 / VPAT), and full-stack software architecture.

## Overview & Core Skills

- **Primary Role**: Senior Software Engineer (Mobile & Backend)
- **Core Stack**: Flutter, Dart, Go (Golang), PostgreSQL, Docker, AWS, Firebase, REST APIs, Microservices
- **Specializations**: Mobile App Architecture, Cross-Platform Engineering, Fintech Solutions, Mobile Instant Apps, App Performance Optimization, Web Accessibility (WCAG 2.2 / VPAT / ARIA)
- **Languages**: English (Fluent / IELTS 9.0), Portuguese (Native), Spanish (Intermediate)
- **Website**: https://andresilvase.dev/
- **GitHub**: https://github.com/andresilvase
- **Contact Email**: mailto:anprofelipe@gmail.com

## Key Experience Highlights

- **Jeitto (Payment Institution)** (Nov 2024 – July 2026): Senior Software Engineer. Led Insurance platform (Seguro AP) driving 2K+ contracts and R$8.5K NIM; co-led native Android to Flutter migration & launched iOS app (46K downloads in month 1); built PIX cash-in, biometrics, and Tap to Pay.
- **Savana (Digital Banking Platform, USA)** (Feb 2025 – Feb 2026): Senior Flutter Engineer. Achieved VPAT & WCAG 2.2 compliance for mobile and web apps, standardizing ARIA accessibility semantics across Flutter.
- **Nubank (Nu Pagamentos S.A.)** (Oct 2021 – Aug 2024): Software Engineer. Migrated Android/iOS apps to Flutter for 100M+ users; built Android Instant App adding +11K daily registrations; redesigned PJ app home screen (88% CSAT).
- **Evertec Brasil** (Feb 2021 – Sep 2021): Flutter Developer. White-label fintech mobile app with PIX payments and QR scanning.

## Key Projects

- [Erosyn](https://erosynbr.com): Privacy-focused social platform built with Flutter, Go, AWS, and PostgreSQL.
- [Iskedoo](https://iskedoo.com.br): Cloud-based scheduling platform for service businesses (Flutter, Firebase, Node.js).
- [Tiutiu](https://tiutiu.com.br): Open-source animal adoption platform (Flutter, Firebase, GCP, SQLite). GitHub: https://github.com/andresilvase/tiutiu
- [Nubank App](https://play.google.com/store/apps/details?id=com.nu.production&hl=pt): Digital banking app serving over 100 million customers.
- [ShortCut Link](https://short.cutli.ink/): Lightweight URL shortener service. GitHub: https://github.com/andresilvase/cutlink-app

## Documentation & Full Information

- [llms-full.txt](https://andresilvase.dev/llms-full.txt): Complete resume, full career history, detailed project metrics, technical certifications, education, and testimonials.