John Ganotis
Logo of Credit Card Insider.

John Ganotis

Founder at Credit Card Insider


Silvestar is amazing. He is fast, and the work he produces is among the highest quality work I've seen from front-end engineers.

In our time working together he's been extremely reliable, with quick daily calls to give progress updates, but also having flexibility to work independently and provide updates on his progress on days when we skip those calls.

When working with Silvestar, I know that the work will be done quickly and correctly, but that he'll also point out any areas where he thinks we can improve. He's always looking out for opportunities to improve performance, maintainability, and accessibility. I get the impression that he's constantly learning and reflecting on his work, always looking for ways that he can build his skillset even more and produce even higher quality work (if that's possible!).



From Testimonials

Here are some kind words about my work from clients. Although I collaborated with clients from more than 10 countries, most of them come from The United States.


Christine White

Christine White

Director of Web Strategy at DDL

Silvestar is diligent, focused, quick, and always willing to go the extra mile...

Sarah Gates

Sarah Gates

Director of Product Marketing at DDL

Silvestar was very quick to respond to requests, dependable, and communicated well...

Bob Laurent

Bob Laurent

Sr. Director of Product Marketing at DDL

Silvestar is a highly talented web developer that I was fortunate enough to work with...

David Schulman

David Schulman

Senior Manager of Partner Marketing at DDL

Silvestar was INSTRUMENTAL in some of my first big wins...

Ryan Kelly

Ryan Kelly

Vice President Growth Marketing at DDL

Silvestar was always responsive, proactive, and his work product was top-notch...

Aditya Shah

Aditya Shah

MarketingOps Leader at DDL

Silvestar was an outstanding collaborator, supremely dependable doer...