Thiago Reis

About Thiago Reis

Hey I’m Thiago, a Principal Product Manager with 8+ years of experience leading product strategy, growth, and marketplace products, with a background in B2B SaaS, B2C eCommerce, and product-led growth (PLG). I also bring over 10 years of experience building technology in the Financial Services and Payments industry.I specialize in 0→1 product launches, AI-driven product discovery, and growth systems, combining a strong technical foundation with a business-oriented product vision.I’ve led initiatives that:• Launched and scaled new marketplace products (0→1)• Drove double-digit ARR growth through product strategy and PLG• Increased free-to-paid conversion by 36%• Boosted enterprise deals by 120% through platform APIs and integrations• Delivered impactful products in the Credit Card & Payments ecosystemWith a strong technical background as a former engineer, I work comfortably across product, engineering, data, and go-to-market teams, translating complex user needs into scalable product solutions. I focus on building AI-driven product experiences, marketplace discovery systems, and growth engines that improve conversion, retention, and customer value.Currently, I lead product initiatives at driving the strategy and growth of MasGusto, a Latino-focused B2C grocery marketplace, where I work on product discovery, assortment strategy, and AI-powered ranking systems to accelerate marketplace liquidity and customer engagement.Outside of work, I enjoy connecting with people, hosting Brazilian barbecues 🥩, and surfing in Santa Cruz. ‍

Experience

1. Principal Product Manager, Growth

   Weee!

   Mar 2025 — Present · CA, US

   Led the 0→1 launch and product strategy of MasGusto, a Latino-focused B2C grocery marketplace within defining the vertical’s positioning, assortment strategy, and growth roadmap.• Designed AI-driven product discovery and ranking systems to solve cold start, improve search relevance, and accelerate early marketplace liquidity and conversion.• Owned the end-to-end shopping experience (search, discovery, merchandising, cart, checkout), driving improvements in conversion, retention, and average order value (AOV).• Scaled MasGusto into the fastest-growing ethnic store in history, sustaining ~25% month-over-month growth through product-led growth, merchandising optimization, and category expansion.

Education

• Stanford University

  Generative AI for Product Managers

  2024 — 2024

• Universidade Paulista

  Bachelor, Computer Engineering

  2000 — 2004

• University of California, Santa Cruz

  Master of Science - MS, Computer Software Engineering

  2016 — 2017

• USP - Universidade de São Paulo

  Master of Business Administration (MBA), Business Management

  2012 — 2014

Skills

• Mean Stack
• Software Development
• Scrum
• Api Development
• C#
• .net
• Project Portfolio Management
• Microsoft Sql Server
• Ajax
• Android Development
• Asp.net Mvc
• Itil
• Microsoft Project
• Restful Webservices
• Asp.net
• Jquery
• Software Development Life Cycle (Sdlc)
• Pmi
• IT Project & Program Management
• Project Management Office (Pmo)
• Team Leadership
• Erp
• Node.js
• Express.js
• Web Services Api
• Mysql
• Pmi (Project Management Institute)
• Pmo
• Pmp
• Pmbok
• Project Management
• Javascript
• Cmmi
• Process Quality Improvement
• Ruby on Rails
• Mongodb
• Information Technology
• Sdlc
• Angularjs