Personal details

Leonardo O. - Remote full-stack developer

Leonardo O.

Fullstack developer
Based in: 🇧🇷 Brazil
Timezone: Brasilia (UTC-3)

About

I hold a degree in Digital Games from the University of Vale do Rio dos Sinos (Unisinos-POA), where I acquired a solid foundation in programming and data structures.

For about 6 years, I have worked both as part of a team and as a lone full-stack developer/co-founder. Throughout this time, I have taken it upon myself to learn numerous new skills. More recently, I have been working in the AI training business, both as a direct "tutor", as a Squad Lead, and even more recently, as a contributor success manager, helping deliver projects, supporting the pipeline, and solving contributors' issues.

I am looking forward to building something that will impact people's lives and being part of a team where I can learn from my peers.

Work Experience

Contributor Success Manager
Outlier/ScaleAI | May 2025 - Present
HTML/CSS
Python
Java
C++
SQL
TypeScript
JavaScript
Golang
  • Worked directly with the project team to help with delivery, solving contributors' issues, as well as answering technical and non-technical questions about the project.
  • Performed quick audits to gauge the quality of the contributors.
  • Did live training as well as onboard a series of contributors
  • Used queries to identify general issues and provide information to the project team.
  • Performed operations through the admin dashboard to unblock contributors.
RLHF AI Trainer
Outlier/ScaleAI | Feb 2024 - Present
HTML/CSS
Python
Java
C++
NumPy
Pandas
JavaScript
Scikit-learn
  • Evaluated the outputs of a variety of LLM's, engineered prompts and rewritten model responses and code output to help build better Generative AI models.

Projects

Biteplay
Node.js
MongoDB
Firebase
Nuxt.js
Vue.js
Express.js
AWS
A web-based suite of tools designed to assist digital marketers in optimizing their YouTube advertising campaigns. The primary purpose of this app is to offer marketers relevant videos that can effectively reach their target audience and maximize their revenue.

Education

UTFPR
Pós Graduação・AI
Jul 2024 - Dec 2026
Unisinos
Bachelor's degree・Digital Games
Mar 2013 - Jul 2019