In Progress

Build a bridge software between "CashKeeper" and our POS Software

One of our customers needs to use a "Cash Keeper" ([login to view URL]) with 2 POS.

We need a software (executable with an installer) to make the link between the 2 POS and the "Cash Keeper" machine.

This software will be installed on one of the point of sale machine, running Windows.

Needed features :

- Listen to the 2 POS at the same time

- Display state (connected / not connected / in use) of the CashKeeper and the 2 POS

- Receive charge orders from the POS, send it to the CashKeeper and return back the answer to the POS (OK and details, or ERROR and explanations)

Cashkeeper <=> POS communication :

- The link between the POS and the bridge software will be by socket in JSON format.

- The bridge software must handle the state of use of the cashkeeper machine. If already in use by the other POS, the call will be forbidden. Once the other POS finished the operation, the second POS will be able to communicate with the CashKeeper.

Provided elements :

- Virtual Cashkeeper

- Cashkeeper test/demo program (Visual basic) with connection, payment and others functions

- Cashkeeper integrator manual


Skills: Software Architecture, C# Programming, C++ Programming, Socket IO, Visual Basic

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About the Employer:
( 0 reviews ) Levallois-Perret, France

Project ID: #21295540

Awarded to:


hi. I have 6+ years of experience in C# development. I have already built similar solutions that act as bridge between POS and other applications/hardware. here's demo of one: ---( [login to view URL] More

€750 EUR in 12 days
(98 Reviews)

14 freelancers are bidding on average €636 for this job


Hello, I am software developer with enough experiences on C/C++ for 13 years. I can work by full time for your project and trying to satisfy the requirements. Client's idea + Programmer's good coding is the perfect res More

€500 EUR in 7 days
(28 Reviews)

Hi There, Thanks for your valuable time. :-) Please check below points : 1. One of our customers needs to use a "Cash Keeper" ([login to view URL]) with 2 POS. We need a software (executable with an i More

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(275 Reviews)

How are you? I am expert in mobile/web field. Especially,I have strong skills in java in android studio, swift, objective-c in xcode. Also have good skills in Xamarin, C#. Tool/IDE for development - Android studio - X More

€500 EUR in 7 days
(18 Reviews)

Hi there, I have checked the details, I have rich experience with C# Programming, C++ Programming, Socket IO, Software Architecture, Visual Basic. Please initiate the chat so that we can discuss in detail.I am new to More

€555 EUR in 9 days
(5 Reviews)

Hello, The connectivity to CashKeeper can use the SDK. But how could we manage the connectivity with the POS? The active X will do that? Let me know

€400 EUR in 3 days
(30 Reviews)

Hi, there! I have rich experience and full skill in Software development. And I am very smart. Also I have experience in similar projects. I am sure I can do it perfectly. Please contact me we can discuss more details. More

€500 EUR in 7 days
(4 Reviews)

Hi, very nice to meet you ! I've already built a Cafe POS system using C# WPF. Generally, for Windows desktops, we can build POS with C# WPF mode or JavaFX. I've experience in both but I prefer C# WPF mode. Here are th More

€1000 EUR in 7 days
(8 Reviews)

Dear sir. As you can see my profile, I am excellent MEAN stack developer, I think your job is very suitable for me. I am a full stack developer extensively working on backend and frontend development. I have worked wit More

€500 EUR in 7 days
(11 Reviews)

Hey, we're a team of expert developers with a knack for complex APIs and plugins and an eye for sleek [login to view URL] are fluent in all of Adobe suites, comfortable with animations and graphic designs as well. We are specia More

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(0 Reviews)

Hello, i have 3 years experience in development and maintaining ATM/POS hosts. Please contact, so we could discuss the issue further.

€500 EUR in 7 days
(0 Reviews)

Hello I am a senior developer so i can do it very easily if you want. Contact me right now i am ready to start this project for you. Low cost and high quality result reply to discuss more about this project.I believe More

€500 EUR in 7 days
(0 Reviews)

Hello, Greetings !! As per my Understanding, You wants to develop POS Solution for that Support sale, Purchase, User – Level, Inventory, Accounting, and Report, etc. We have already successfully delivered many “POS More

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I have Ready POS Application fully integrated with the inventory and accounting Point of Sale application its already running lots of retail store and supermarket in Saudi Arabia Market I have Online web version Offlin More

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