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I Built screen2.me Because I Needed Fast Screen Sharing Again
After Discord had to suspend live screen sharing features in Brazil, I built a simple browser-based way to share a screen with friends without downloads or setup.
Hi, I'm
Leonardo Salles
I build
A Software Engineer with 14+ years of experience building scalable web applications. Passionate about modern JavaScript, cloud architecture, and creating delightful user experiences.
Recent Posts
How I Studied for the Claude Certified Architect Certification
My study routine for the Claude Certified Architect — Foundations certification, including consistency, difficult topics, and how I used a community repo to organize the process.
VACNet 2: Valve Is Training CS2 Anti-Cheat With Human Help
Valve launched a VACNet labeling portal for CS2, where invited players help review clips and generate training data for the anti-cheat system.
Tech Sandbox
A selection of all my POCs and experiments
AWS CDK Counter-Strike 2 Server
A server to host Counter-Strike 2 games using AWS CDK
AWS
CDK
Docker
EC2
+1
Module Federation
Understading Host and Remotes architecture with Module Federation using RSPack
TypeScript
Webpack
React2Shell
A POC to validate and understand React2Shell (CVE-2025-55182) vulnerability
TypeScript
React
Cool
New
New
New
Tech Stack
Technologies I use to build things
Languages
TypeScript
Java
Python
Rust
Frontend
React
React Native
Next.js
Tailwind CSS
Backend
Node.js
Express
PostgreSQL
Redis
DevOps
Docker
AWS
GitHub Actions
Vercel
Experience
Senior Software Engineer
Happen Bank
Develop applications using modern React and TypeScript.
Integrate Figma designs into production code.
Collaborate with product managers and designers to deliver high-quality features.
Senior Software Engineer
Metalab
Building Task Runners using Node.js and TypeScript.
Created node.js endpoints using Nest.js.
Build, develop and debug devops architecture using AWS CDK.
Lead Software Engineer
Truelogic
Developed UIs for internal tools to manage company resources.
Lead Software Engineer
X-Team
Created apps using React Native.
Created SDKs for a Mobile Gaming platform based in React Native.
Built UIs for education institutions.
Get In Touch
Let’s build something amazing together
Connect
I'm always interested in hearing about new projects and opportunities. Whether you're looking to hire, collaborate, or just want to say hi, feel free to reach out!
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More about me
If you want to take a better look at my professional background, check out my resume.
Let’s connect and discuss how I can help your team.