Sinatra Jobs

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Hourly - Expert ($$$) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
We are looking for a full-stack web developer to help build the next generation Competency-based Education (CBE) SaaS platform. Our tech stack is primarily a Sinatra-based Ruby environment augmented by JavaScript libraries such as Angular, Ember, Backbone and React.
Skills: CSS3 HTML JavaScript PHP WordPress
Hourly - Expert ($$$) - Est. Time: Less than 1 month, 30+ hrs/week - Posted
Looking for a app designer to come up with designs of an app. The app is to help donate to homeless people. the pitch is: many of us want to help out homeless people but we don't have cash and/or we don'tk now where the money we are giving them goes to. our solution is: an app on the phone that allows you to tap and pay your phone on an NFC bracelet of a homeless man and donate to them. however the money can only be access at specific stores The app designer will need to come up with a ios and android app designs. the hardware designer needs to design this bracelet. Neeeds to be small and it needs to be very secure. need these within a week.
Skills: Mechanical Engineering User interface design User Experience Design
Fixed-Price - Expert ($$$) - Est. Budget: $500 - Posted
I have a datailed design and specifications of the software, plus the HTML templates. Technologies are: Ruby + Sequel + Sinatra + SQLServer + Windows 2008 Server Below is a list of the features to develop.
Skills: AJAX jQuery