Marcelo Castellani

Marcelo Castellani

Ruby, Rails and C specialist

Santo Andre, Brazil



What's the difference?

Over the last 14 years I have developed a wide range of applications for desktop, web and embedded systems in small, medium and large Brazilian companys using Java, Microsoft .NET, C, Ruby, Rails, Groovy, Python, Windows XP Embedded and Linux Embedded. Now I'm looking for new experiences with remote working in application development.

Work History & Feedback

Ruby on Rail and Extjs

“Great Developer. However contract had to come to natural end given the technology required for the job wasn't easily fit for Ruby.”
Fixed Price $150

Precious Metals Portfolio Tracker

“Marcelo did good work but I had to end the project due to lack of time to devote to it.”
49 hrs @ $15.00/hr
Earned $740

PSD to HTML to Wordpress

“Outstanding job, very quick, high quality and extremely responsive. Highly recommended, endeed. Hope work more times together.”
Fixed Price $556

Image sharing website development and admin

“just found someone more suitable for my needs”
23 hrs @ $15.00/hr
Earned $348

Ruby on rails programmer for small bug fixes

“Overall - Marcelo knows rails and does a good job of it.”
3 hrs @ $15.00/hr
Earned $48

Ruby on Rails expert

“Did what I needed when I needed it.”
24 hrs @ $15.00/hr
Earned $353
Tests Taken
Name Percentile Score

Java Test


Ruby on Rails Test v1 (Old)


Upwork Readiness Test for Independent Contractors and Company Managers