Davi Reis Vieira

1. Jun 2024 – Present

   Founding Team, Tech at Refer

   Palo Alto, California, United States

   At Refer, we connect Stanford's brightest engineers with the AI companies shaping the future. Building the technology that matches exceptional specialized talent with forward-thinking teams.

2. 2024 – Present

   Tech Fellow at Fundação Estudar

   Brazil

   Selected as a Tech Fellow of Fundação Estudar, a highly selective fellowship supporting high-potential Brazilian leaders in technology.

3. Sep 2021 – Jul 2024

   Lead Developer at Stone

   São Paulo, Brazil

   Designed and developed multiple applications, enhancing system performance and user experience. Led the multicloud cost optimization team, managing resources across Google Cloud Platform, AWS, and Azure.

4. Jan 2023 – Jun 2024

   CTO at CP Legal Claims

   Brazil

   Led the strategic planning and development of the technology division focused on the acquisition of judicial assets. Optimized legal workflows for search, summarization, and classification using GenAI, custom classification models, and LLMs.

5. Mar 2021 – Jul 2024

   Ambassador at Brazilian Technion Society

   Brazil

   Represented and promoted the organization, building strong relationships with key stakeholders. Facilitated events and initiatives to support its mission and goals.

6. Jul 2021 – Jan 2022

   Senior Technology Consultant at Insper Jr.

   São Paulo, Brazil

   Provided technical support and project management for various clients. Led educational initiatives, fostering a collaborative learning environment.

Things I build outside of work — tools I wanted to exist.

• StackPort

  Open source158 GitHub stars35k+ Docker pullsMIT license

  See everything running in your AWS emulator

  An open-source browser for AWS resources across 35 services, working against LocalStack, MiniStack, Moto, or a real AWS account through one interface. Read and write — browse S3, invoke Lambdas, push SQS messages — with live updates over WebSockets, a CLI for CI pipelines, and guided lessons that run against your own emulator.

  • Python
  • FastAPI
  • React
  • TypeScript
  • Cloudscape
  • Docker
  stackport.cloudGitHub

• MD Formatter

  LiveChrome Web Store

  Readable Markdown and llms.txt, the moment you open them

  A browser extension that notices when a page is a Markdown document and renders it in place — the way a JSON formatter handles raw JSON. Built for the llms.txt era: an index renders as browsable link cards rather than a wall of bullets. No configuration, no tracking, and no network requests of its own.

  • TypeScript
  • Manifest V3
  • markdown-it
  • DOMPurify
  • Shadow DOM
  Add to ChromeAbout MD Formatter

More repos and experiments live on GitHub.

1. 2011

   Bad at Counter-Strike, curious about it

   I wanted to know how the game worked behind the scenes and whether I could change it. A year of modding taught me what a programming language was, how to alter a game's behavior and how to create my first items.

2. Teens

   Reverse engineering & bug bounty

   Kept going as a hobby, purely out of curiosity: learning to program properly and taking software apart to see how it worked. My first paid work was bug bounty. I loved security, but it felt like a tricky field to build a career in, so I kept following the curiosity.

3. Teens

   GTA roleplay servers & flight-sim add-ons

   Then I realized I could build things people wanted: I ran GTA roleplay servers and made add-ons and modifications for Microsoft Flight Simulator X — some of which I sold. That's where hobby code started becoming products.

4. 2014–17

   Science olympiads

   Gold twice at the Brazilian Astronomy Olympiad and bronze at the Brazilian Physics Olympiad — the same itch, pointed at the universe instead of a game.

5. 2020–24

   Computer Engineering at Insper

   Formal foundations in computer science, plus consulting for clients as a technology consultant at Insper Jr.

6. 2021–24

   Lead Developer at Stone

   Built applications used at scale and led the multicloud cost-optimization team across Google Cloud, AWS and Azure.

7. 2023–24

   CTO at CP Legal Claims

   Ran the technology behind acquiring judicial assets, using LLMs and custom classifiers to search, summarize and classify legal documents.

8. 2024–now

   Founding team at Refer

   Building the platform that connects Stanford's strongest engineers with the AI companies shaping the future. Selected as a Fundação Estudar Tech Fellow the same year.

9. 2026

   AWS CTO Fellowship & open source

   Joined the AWS CTO Fellowship, and keep shipping tools I wish existed — StackPort and MD Formatter among them.

1. 2020 – 2024

   Insper Instituto de Ensino e Pesquisa

   Bachelor's Degree, Computer Engineering

   Skills: Computer Science, Containerization

2. 2015 – 2019

   Colégio Ari de Sá Cavalcante

   High School, General Studies

• Jul 2026

  AWS CTO Fellowship

  Amazon Web Services (AWS)

  Credential ID 1a1495c9-b15b-4f1a-b882-10bfdd3a6761

• Apr 2022

  Understanding Your Google Cloud Costs

  Coursera

  Verify

• Aug 2021

  Valuation e Precificação de Ativos

  Suno Research

• Oct 2020

  AI Text Annotation with Watson Knowledge Studio & Integrated APIs

  IBM

• Oct 2020

  Data Science & Machine Learning Deployment with Jupyter & Watson ML

  IBM

• Apr 2018

  Bronze Medal - Brazilian Physics Olympiad 2017

  OBF

  Bronze Medal at the Brazilian Physics Olympiad in 2017

• Oct 2017

  Gold Medal - Brazilian Astronomy Olympiad 2017

  OBA

  Gold Medal at the Brazilian Astronomy and Astronautics Olympiad. Participant in IOAA and OLAA selection.

• Oct 2014

  Gold Medal - Brazilian Astronomy Olympiad 2014

  OBA

  Gold Medal at the Brazilian Astronomy and Astronautics Olympiad in 2014.

• Jul 2015

  Bronze Medal - Brazilian Physics Olympiad 2014

  OBF

  Bronze Medal at the Brazilian Physics Olympiad in 2014.

• Nov 2015

  12th Place - Ceará Science Olympiad 2015

  OCC

  12th place in the XXIII Ceará Science Olympiad in 2015

Email

[email protected]

LinkedIn

linkedin.com/in/davireisvieira

GitHub

github.com/DaviReisVieira

Full name

Davi Reis Vieira de Souza

Location

Palo Alto, California, United States