Shai Mesisterano

The Credit Builder helps people establish credit scores and build credit history.

I received Figma designs as a reference for about 30 web pages. My mission was to turn the designs into a live web component using Svelte. I developed the web component from scratch for both mobile and desktop. Some of the designs were related to the registration process, and the others to a dashboard.

I managed to build the component E2E within three months and received great feedback from the client. I also built an automation tool that covered the process with more than 50 tests. The tool was adopted by the rest of the company after it increased the product's quality significantly.

TESTIMONIAL

"Highly skilled, organized, professional, friendly, communicative, and helpful only begins to describe Shai. He is a top-tier dev and a great person. I can't recommend him enough!" – Joe Schwehr, Software Engineer

Created an omnichannel solution that allowed CWT's customers to perform actions such as booking a flight and ordering a hotel room. Customers could engage with CWT with a mobile phone via their website, move to another channel like Facebook Messenger or Slack, and continue the conversation from where they left it.

On the technical aspect, I created a microservices architecture to deliver the solution. A messaging service was created to listen to user operations via Webhooks. From there, an abstract layer written in Express.js communicated with a vendor service, e.g., Slack, Facebook, Teams, etc., via a RESTful API. I created a service for each vendor and integrated our solution with its API. The new data was stored in a MongoDB database. Once the database was updated, the other channels were notified through the messaging service. All services ran on Docker instances.

The chosen architecture allowed the solution to scale. New vendors like Twilio, Gmail, and others could be added easily, and the company gained a huge advantage over its competitors by being able to build new features with minimal effort and customize them according to the customers' needs.

Created a WebSockets-based messaging solution for LivePerson. I took the legacy product, which included an option to chat with agents only in real time, and transformed it into a modern application that allows consumers to leave a message to an agent, have asynchronous conversations (WhatsApp style), take a survey, and more.

TESTIMONIALS

"Shai is one of the most diligent, detail-oriented and clear [sic] I've worked with. We've gone through complicated times prioritizing and hacking bugs and tasks for high-paying customers. In these times, having a person who can provide honest timelines and deliver upon them is *priceless*." – Maor Bluman, Product Manager

"I had the opportunity to work with Shai at Liveperson. Shai owns a unique skill that is a key to success for any engineering team: he is capable of finding a way to each and every person, understanding him/her, no matter how different or opposite they are. This skill and the power of doubting assumptions in order to reach the best quality of features delivery make him an asset." – Adiel Ivantsiv, Software Engineer