Hey, I'm Breno Polanski 👋

Front End Engineer based in Brazil. Mainly focused on web development and helping other people by giving presentations, writing articles and creating open source projects. Skills in Node.js, JavaScript/TypeScript (React ecosystem, Vue.js and Angular), HTML5, CSS and Responsive interfaces.

As a programmer, I'm in a constant search for better practices and also experimenting new things.

I'm an active open source contributor: https://github.com/brenopolanski



A crypto trading platform enabling traders to manage multiple exchange accounts from one place while leveraging social features and copy trading.


The BitcoinHoje.io allows users to track the price of Bitcoin and other currencies such as Ethereum, Litecoin, Bitcoin Cash and etc. There are more than 20 currencies online and the prices are always updated every 10 minutes.


The DolarHoje.io allows users to track the price of the commercial dollar and tourism. Also on the website users can check the quotation of other currencies such as Euro, British Pound, Bitcoin and etc. There are more than 20 currencies online and the prices are always updated every 10 minutes.

ARK Desktop Wallet

The ARK Desktop Wallet is a multi-asset cryptocurrency wallet built to provide automatic integration of popular coins and any ARK-based cryptoasset.

Saiku Analytics

Saiku offers a friendly web based analytics solution that allows users to quickly and easily analyse corporate data, and create and share reports. The solution connects to a variety of OLAP servers, including Mondrian, Microsoft Analysis Services, SAP BW and Oracle Hyperion. It can be deployed quickly and cost effectively to allow users to explore data in real time.

Saiku React PDF.js

A React component to wrap PDF.js.

Saiku Embed Element

A web component to embed Saiku Analytics using Polymer.


aiEyes is an open source app that helps the Blind and Visually-Impaired Users to see the world with the help of artificial intelligence.

Notifier for Udacity Reviewer

The extension checks for new notifications every minute and running API calls against the Udacity Reviews API.

The Coffee Club

Coffee control app within a company, hackspace or co-working.



Front End Engineer, March 2021 - June 2022 - Remote

ARK Ecosystem

Full Stack Developer, January 2020 - January 2021 - Remote

Meteorite BI

Front End Engineer, September 2014 - January 2020 - Remote


Mentor and Project Reviewer, June 2016 - December 2019 - Remote

Spicule LTD

Software Engineer, April 2017 - December 2019 - Remote


Student Researcher, July 2014 - November 2015


Microsoft Student Partners, December 2012 - October 2015

Indra Company

Systems Analyst, June 2013 - September 2014


Web Developer, February 2012 - May 2013


A Method for Intelligent Support to Medical Diagnosis in Emergency Cardiac Care

25th Brazilian Congress on Biomedical Engineering - CBEB 2016

A Portable System to Support Electrocardiography in Emergency Care

Proceedings of the IEEE Symposium on Computer-Based Medical Systems Journal - CBMS 2015