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Write some Software-Similar to Yammer or Slack

I would like to develop a online collaborative platform in Ruby on Rails. It must have a chat function, video conferencing ability, CMS/file sharing, and time manager (reminder & task). Similar companies are [url removed, login to view] , [url removed, login to view] , [url removed, login to view] . I will not accept any person that does have this experience in their profile. Before I release any Milestone I must check the platform to ensure that it works. TYPE:5674 to let me know that you read this post.

1) Once project completed, developers need to assist me fully to deploy the application twice. One on the internet facing server and another on a server behind a corporate firewall for internal usage.

2) Developer is to assist me fully to integrate the sms gateway (hardware) on both deployment.

3) Developer need to specify what is needed before the project begin and any additional software or hardware required after the project begin will be developer's responsibilities.

4) setup the open source that i mentioned on your own server. why?

So that i know at least you know how to setup.

And we can based on what you have setup to discuss the details of the cloning and some of the customization required.

5) Please provide an estimated time line required to build yammer.com-like based on the open source provided. (exclude customisation required)

6) Please provide an estimated cost required to build yammer.com-like. (exclude customisation required)

Skills: MySQL, PHP, Ruby on Rails, Software Architecture, Software Testing

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About the Employer:
( 5 reviews ) HOUSTON, United States

Project ID: #5492811

9 freelancers are bidding on average $4102 for this job

honex

5674 Hello, We are expert RubyOnRails team with experience developing large SaaS solution like Yammer. We used Yammer for our own company for sometimes and know all its features. If you are serious about doin More

$20618 USD in 90 days
(203 Reviews)
7.4
phpdeveloper100

5674 Hi We are very interested in this [url removed, login to view] can do that job in a normal [url removed, login to view] have great experience of [url removed, login to view] have experience of preparing Complete Scope,Complete documentation,attractive design ,Webdevel More

$4286 USD in 45 days
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pablotorres

A proposal has not yet been provided

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tuxmin

Hi there , We have gone through your project description and regarding that we would like to go for detail analysis of your requirement and detailed discussion with you so that things will be more clear to [url removed, login to view] o More

$4123 USD in 35 days
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5.6
stevecorsi

Hi, Its Steve. Ready for the task. Please see my reviews and previous projects. Can we discuss the details further ? Waiting for your reply !

$3641 USD in 7 days
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mmadi

Hi, Iam interested in your project and I'll be happy to do that for you. here are examples of work: [url removed, login to view] [url removed, login to view] [url removed, login to view] I am ready to work with More

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prashushinde9

Hi, I (Myself a senior PHP, ASP.NET programmer using C# and VB) have a team having experience of more than 10 years in developing web and mobile applications. I have a team of expert programmers who write robust and bu More

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snowmicro

We are a team of Software and Web developers Please check our company website: [url removed, login to view] Please take a looks on our latest projects: [url removed, login to view] [url removed, login to view] [url removed, login to view] [url removed, login to view] More

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johnmilton

Hi We are service provider in IT Software services, delivering best Services to our clients with zero defects and serving on the good quality since 8 years. Developing the software in core PHP including all the techn More

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CWP10

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