Software Developer in Cabarete, Puerto Plata Province, Dominican Republic

I built a bot acting as a market maker on Coinbase.

My total traded volume has been over US$450 million. At the peak of June 2019, the bot was managing an equivalent of US$900,000. Resilience to failures and performance was crucial to this project.

I built the bot with Node.js and used WebSockets streams, FIX APIs, Google Sheets, Kibana graphs, Elasticsearch, and email alerts. FX uses an OANDA real-time feed. Over 15MB/s in and out of data was expected, so I used a c5.xlarge instance.

The source code is available on my GitHub. Nowadays, market making is essentially done by professional firms such as Jump Trading and Alameda, and fees have been raised—making it harder for independent guys like me to compete.

Streamroot offers innovative, WebRTC-based distributed video CDN solutions (Peer to Peer P2P) to improve quality and cut bandwidth costs for VOD (video on demand) and live streaming platforms and global enterprise networks.

Streamroot was a personal project that I started building initially with AS3/Cumulus before switching to WebRTC and WebMedia HTML5 APIs. I also designed the original idea of relying on existing streaming technologies (DASH, HLS, and so on) and making Streamroot a plugin for existing video players.

Some friends took over the project and made a company out of it. I've been a non-operational shareholder of the company until it got sold in 2019 to Century Links—now Lumen.

Tracktl is a digital jukebox for businesses and events. We had events of over 1,000 people interacting in real-time with it.

I built the first version with Backbone.js and Node.js and then used Node.js and Angular. It uses Socket.IO to handle real-time communications. Music is streamed from various streaming services. It was packaged for mobile app stores using PhoneGap.

I sold my shares back to my co-founders when leaving the still active company.