Senior Software Engineer

Iury
Brasileiro

Full Stack & Mobile Engineer with 6+ years delivering products across web, mobile, and AI systems. Based in Brazil — working globally.

Career

Selected Experience

Nov 2025 - Present

London, UK

Senior Software Developer

Employers AI

Working directly with AI-driven systems — fixing bugs in AI features, refining prompts to improve model outputs, and ensuring consistent behavior across use cases.

AI SystemsPrompt EngineeringLLM

May 2025 - Present

São Paulo, BR

Senior Full-Stack Developer

Weme

Led migration of a SharePoint/React portal to Next.js. Implemented security fixes on a NestJS backend based on pentest findings. Covered frontend, backend (C#/.NET), and QA roles.

Next.jsNestJSC#.NETQA

Jan 2022 - Oct 2025

New York, US

Senior Mobile Developer

Fluyo

Built CI/CD pipeline with GitHub Actions + EAS. Implemented payment system via RevenueCat, automated tests with Maestro, and push notifications. Delivered ambient music and rewards features.

React NativeGitHub ActionsRevenueCatMaestro

Jun 2023 - May 2024

Barueri, BR

Senior Full-Stack Developer

Aggera Tech

Co-owner and tech lead on CyberAngels, an Italian cybersecurity platform. Built the admin dashboard, led a backend team, and maintained code quality across the project.

LeadershipCybersecurityDashboard

Mar 2021 - Oct 2023

Rio de Janeiro, BR

Full Stack Developer

DoctorWeb

Built Farmazon Client and Store apps in React Native. Migrated entire backend from Python to NestJS. Created a custom keyboard proof of concept with a native React Native bridge.

React NativeNext.jsNestJSPython Migration

Stack

Tools & Technologies

ReactNext.jsReact NativeTypeScriptNestJS.NET / C#Node.jsVue 3ViteAI SystemsPrompt EngineeringCI/CDKeycloakPostgreSQLDocker

Contact

Let's build something worth remembering.