Gustavo Saiani, CTO Developer in Rio de Janeiro - State of Rio de Janeiro, Brazil
Gustavo Saiani

CTO Developer in Rio de Janeiro - State of Rio de Janeiro, Brazil

Member since January 20, 2016
Gustavo has 13 years of experience as a front-end developer and a strong background in design, having created ambitious startups and projects for clients of all sizes. While he has lately been interested in JavaScript (ES6/7), React.js, and React Native, he has broad interests in and out of software development, which allows him to communicate well and work efficiently with teams of varied sizes and characteristics.
Gustavo is now available for hire


  • Poema
    React, JavaScript, Elixir, React Native, Next.js, Sass, Styled Components
    React, Next.js, Elixir, React Native
  • Niramekko
    PHP, Sass, WordPress, CakePHP



Rio de Janeiro - State of Rio de Janeiro, Brazil



Preferred Environment

macOS, Vim, GitHub, Slack

The most amazing...

...thing I've built, as co-founder and CEO, is, a real estate platform, raising USD $1 million in seed money and now serving thousands of users.


  • Owner

    2013 - PRESENT
    • Built a modern API web client in React.js for a peer-to-peer organic food startup.
    • Built the front-end in Ruby on Rails for a gourmet coffee subscription startup.
    • Built and managed a 14-person team to develop an ambitious startup for large-scale events.
    • Successfully built and deployed entire websites with high spikes of traffic such as
    • Built a tool where investors can look up public companies’ P/E values averaged over trailing 10 years, with continuous, live updating of real data.
    Technologies: React, JavaScript, Elixir, React Native, Next.js, Sass, Styled Components
  • CTO and Co-founder

    2017 - 2018
    • Created the entire MVP in Elixir and React, along with brand and product designs.
    • Created and expanded the API in Elixir serving web and native clients with microsecond response times.
    • Created and expanded the web client with Next.js (a React framework), to include a live dashboard among others.
    • Assembled and managed the remote product and tech team of five people, using Scrum and Agile methodologies.
    • Raised USD $1 million in the seed round from respected VCs in the Silicon Valley and Brazil.
    Technologies: React, Next.js, Elixir, React Native
  • Owner

    2006 - 2012
    • Created visual identity and websites for a major recruiting and human resources company with a revenue of over $100 million at the time.
    • Created JavaScript applications used by millions of people for a large internet company.
    • Helped large telecoms improve and explain their internal processes using the web.
    • Developed highly interactive training materials for Renault technicians and sales personnel.
    • Built an ambitious social network for collaboration, in continuous use to this day.
    Technologies: PHP, Sass, WordPress, CakePHP


  • (Development)

    At, I was co-founder and CTO. As such, I initially did everything from designing the logo to the MVP screens and implementing both the back-end (in Elixir/Phoenix) and the front-end (in React/Next.js).

    Gradually, the team grew, and I moved toward managing the team, including the native app in React Native, and coded mostly on the front-end day to day.

    The company was accelerated by the Harvard Business School and raised USD $1 million in seed money. Now it's serving tens of thousands of customers per month in the real estate space in Brazil.

  • Brokermate (Development)

    In the front-end for Brokermate, a marketplace for securities brokerage firms, I worked with Ember.js. With it, we were able to develop an emcompassing application, both for mobile and desktop devices, with endpoints in the internal database and also exchanges and banks, all in real-time.

  • Spacer Australia (Development)

    Rewrote the front-end infrastructure for further development by Spacer’s internal development team.

    Technologies: Ruby, Liquid Markup, Stylus CSS, JavaScript

  • Lets Events (Development)

    As CTO at, I initially implemented the application in Ruby on Rails, leveraging Sass, Haml, and JavaScript on the front-end.

    As the company took form, we grew to a product/dev team of 14 people among programmers and designers. I was able to be part of most technical sides of the project, focusing mostly on the front-end.

  • Moccato (Development)

    Built the entire front-end for this startup that delivers Brazilian coffee of the highest quality to customers’ doors every month.

  • Bette Midler (Development)

    Developed the website for the renowned singer-actor, with a focus on seamlessly handling heavy spikes of traffic such as during her performance in the Oscars.

  • Grid Real Estate (Development)

    Developed a property search tool for the New Jersey real estate firm.

  • PNM Lawyers (Development)

    Created the visual identity, designed, and developed a bilingual website for an important Brazilian law firm.

  • Via Mia eCommerce (Development)

    Developed the front-end for an online store for a women’s shoe and accessories chain. Built and managed the store’s dev team for over three years, helping make it one of the largest sellers in their category.


  • Languages

    CSS3, CSS, Elixir, ECMAScript (ES6), HTML5, JavaScript, Sass, GraphQL
  • Frameworks

    YARN, Next.js, Phoenix, Redux, Ruby on Rails (RoR), React Native
  • Libraries/APIs

    Styled-components, Styled-jsx, jQuery, React, Google Maps API
  • Tools

    NPM, ITerm, GitHub, Git, Zsh, Oh My Zsh, Stylus
  • Paradigms

    Scrum, REST, Functional Programming, Test-driven Development (TDD), Agile
  • Other

    User Interface (UI), Scrum Master, Minimum Viable Product (MVP), Styled Components, CTO, Banking & Finance, Investment Banking
  • Storage

    PostgreSQL, MySQL


  • B.F.A. degree in Jazz and Contemporary Music
    2001 - 2002
    New School University - New York City
  • B.F.A. degree in Graphic Design
    1996 - 2000
    PUC Rio de Janeiro - Rio de Janeiro

To view more profiles

Join Toptal
I really like this profile
Share it with others