Oscar Rojas

Oscar Rojas

Design & Programming in San Francisco

About

Hello, I'm Oscar. I'm a design engineer making AI remove friction from people's lives while staying true to human values. Most recently, I've been designing and shipping AI agents at Founders Inc and Rappi. Previously, I co-founded two YC-backed startups: CPO at Nara W22 (acqd)/ CEO at Wabi S21, scaling products from zero to thousands of users.

Work Experience

2024 — Now
San Francisco

Built AI projects focused on pushing what can be done with AI agents. Contributed across the entire product lifecycle—from user research, branding, UI/UX design to frontend development and AI engineering.

- AI data analyst inside your Notion-like document editor
- Tori: A friendly AI voice companion for seniors
- AI agent for reservations

Tech Stack:
- Next.js, Tailwind, Typescript, Motion, Javascript, Supabase, Vapi, ElevenLabs, Python, Open ai api, Claude api.

2024 — 2025
San Francisco

AI consultant for Rappi (Latin America's leading e-commerce and delivery platform). Brought in by the CEO to help the merchant division use AI to grow their businesses and solve key challenges.

- Designed and deployed AI agents to help merchants analyze sales data, optimize pricing strategies, and gain actionable business insights

- Collaborated with merchant teams and key account managers to identify, prototype, and deploy AI solutions that doubled data analysis speed, reducing analysis time by 50%

2023 — 2023
San Francisco

Led the product strategy and direction. I worked on branding, design (UI/UX), talking to users, and managing the product, while collaborating closely with software engineers to build both the frontend and AI features. I also took part in sales efforts, helping potential customers understand how our product could solve their problems. My goal was to create a product that people found useful and easy to use.

2022 — 2022
San Francisco

We were building Shopify for the $15B creator economy in LATAM starting with online coaching businesses. For example, a fitness coach can get a branded landing page integrated with payments and a website that can host their online coaching programs and subscriber-only content.

Product design & development, UX, UI, Fundraising, Sales/User research, Design system, Branding, Product Management

Impact:

  • +8K GMV
  • First customers 2 of the top fitness influencers from Latin America
  • Fitness coaches increased their clients by 2X
2019 — 2021
Colombia

We built one of the first social commerce apps in Latin America. We make it easy for first-time entrepreneurs to sell products to friends and acquaintances over social media without investment. We provide the catalog of products and do fulfillment so all they have to do is sell.

Product design & development (I built the MVP with the one we got accepted into YC), UX, UI, Fundraising, Sales, Design system, Branding, Product Management

Impact:

  • Got accepted into YC S21
  • One of the 100 best startups from Colombia in 2020
  • 35% CMGR in GMV since we launched without spending on marketing
    • 9,000 products sold through our marketplace
    • 6,000 customers
    • 2,000 products in our marketplace from Colombian suppliers that had never sold online
  • Became Pioneer at @Pioneer (accelerator from Daniel Gross)
2017 — 2018
Consultant at Alpha Advisors LATAM

-Consultant
-Analyst on financial plans
-Analytical reports
-Strategy

Projects

2024
AI data analyst inside your Notion-like document editor at Founders Inc
2022
GPT-3 Chrome extension for Notion

A Chrome extension that helps you write whatever you want in Notion using AI with GPT-3

2022

What if James Clear helped me use Atomic Habits to make the most simple and actionable plan for achieving my goals?

  • Next.js
  • Responsive
  • OpenAI API
  • Deployed using Vercel
2022

GPT-3 Search Engine

Side Projects

2023

I've always loved Airbnb's design and wanted to practice my front-end skills. So I decided to make an Airbnb clone using:

  • Nextjs
  • Tailwindcss with some animations
  • Responsive
  • Deployed with Vercel
2022
Prompt Engineering
  • Stable Diffusion
  • DALL·E 2
2022

AI art gallery

  • Next.js
  • Tailwind CSS
  • Responsive
  • Using Lexica API (Stable Diffusion search engine)
  • Deployed using Vercel
2022
  • Next.js
  • Tailwind CSS
  • Responsive
  • Deployed using Vercel
2022

What if you could turn your disorganized PDFs into an app?

I've always struggled to follow meal plans and training routines from my trainers in disorganized PDFs. We use the power of AI to turn your PDF into a web app with the same experience as the best recipe apps but with your meal plan and tailor-made to you.

2022
  • Next.js
  • Tailwind CSS
  • Responsive
  • Deployed using Vercel

Education

2021 — 2022
Frontend Developer at Scrimba YCS20
  • HTML
  • CSS
  • Tailwind CSS
  • JavaScript
  • React
  • Next.js
2021 — 2021
Y Combinator
San Francisco
2021 — 2021
Product Design at Platzi YCW15
  • Figma
  • UI
  • UX
  • Design Thinking
  • Product Management
2020 — 2021
No-code Fellow at On Deck
2013 — 2018
BBA, Business Administration at Colegio de Estudios Superiores de Administración - CESA

Contact

Twitter