• Developed and launched a music discovery platform using NestJS, Next.js, TypeScript, and PostgreSQL for fan exploration. • Built scalable databases with efficient indexing and query optimization for high availability and growing workloads. • Drive the development of a music discovery platform in the pre-seed stage to enhance user engagement. Skills: NestJS · Next.js · PostgreSQL · TypeScript · TypeORM

https://homegeniusrealestate.com/ I led a small team of backend developers to build homegenius.com, Radian's online home search tool that combines search information from Multiple Listing Service (MLS) and public records, and adds evaluation using homegenius own home evaluation tools. The tech stack consisted of code-first GraphQL in the NestJS framework, Elasticsearch, MongoDB, Prisma, in an NX monorepo, with NextJS for the front-end.

From wedding websites and guest list tools, to save the dates and invitations, Joy is a free wedding planning website and app that allows their users to share all the details of their event with their guests. Joy includes built-in templates for creating a wedding schedule to hotel and shuttle listings. I developed a wedding checklist micro-service using GraphQL, TypeScript, AWS S3 and Postgres.

Quinstreet is the leader in vertical marketing. I do PHP development and manage all their websites in the Brazilian education domains.

Real Time Matrix is a services company that develops social network applications that run cross-platform on Facebook, MySpace and Hi5, and web modules called Vortex and MiniV that eliminate the technical challenges in creating effective distribution channels through the new Web. I have developed web and social network apps using Kohana, PHP, JQuery, JSON, CSS. I have built an integrated video and ad player using Flex 3 and AS3 connecting the app to an ad network. Currently I've been working on an Android app version of Tweeter Clubs, a PHP app that uses the Twitter API.

CKR Interactive is a marketing & advertising agency specialized in job recruitment. I have developed micro sites, an extranet and various online tools that help CKR Interactive develop job recruitment campaigns. You can view the list of projects on my website (http://www.marcosfrony.net/page.php?pageId=27 ).

At Laszlo I maintained and updated both LaszloSystems.com and OpenLaszlo.org websites, assisted Laszlo’s customer support replying to forums threads, filing bugs, working on test cases and support issues, and developed some projects, like creating dynamic RSS feed pages for all their forum sections, shopping carts, dynamic reports pages, auto-responder emails, registrations, among others.

San Francisco Opera produced and held the World premiere of John Adams’ opera about Robert Oppenheimer, the "father" of the first atomic bomb. I worked as a contractor and created a site manager using PHP and MySQL that allows the client to add and update content to their Flash website. I also wrote the Actionscript code that allows the Flash website to communicate with the PHP back-end.