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Two-step donation kiosk app connected to a mobile POS payment terminal (Android, Java)

Android Java (not Kotlin) app delivering essentially a two-step payment process. This donation app is a self-service kiosk tablet (with Miura pinpad) that has to run 24/7. Special attention has to be paid to make sure the application does not cause memory leaks and performs error handling and reporting well. The terminal is integrated using a Java SDK that is delivered from the payment service provider (PSP), of which an example integration is available via NMI ([login to view URL]). This SDK connects to the terminal and SOAP/XML backend of the PSP.

We are looking for a developer that is a confident and experienced programmer, having a good understanding of design patterns. Experience with UI/UX and payment gateways is a pro. The programmer will work under supervision in order to guarantee code quality. Programmer is fluent in English.

App must:

- interface with the NMI (CreditCall) Direct API (see attached)

- respond to lost internet (WiFi/Ethernet) connection as well as lost terminal connection (USB)

- user-friendly interact in the payment process (i.e. user cancels, payment is not delivered in time, not sufficient funds, card not accepted, thank you-message, user goes back to select a different amount, etc.)

- support admin-protected area with configurable payment amounts

- autonomously (re)connect with terminal, gateway, and perform TMS updates (a procedure to update the pinpad)

- written with AndroidX (Jetpack) compatibility

- using fragments

- the code is expected to be documented well on the spots where complicated tasks are performed, but unit testing or functional tests are not required.

- supports two different devices: tablet and mobile phone (different views for each device)

- sophisticated UI is not required, but the overall structure needs to be there

Application interface:

- main screen with nicely designed buttons with the different payment amounts (1,2,5 euro, "other amount")

- screen for user-configurable donation amount ("other amount")

- password protected admin-screen that is accessible by touching a corner of the app a couple of time (or something of the like)

- a "payment screen" to guide the user when the card has to be presented to the pinpad

We are a young startup that wants to take the next step in donations, supporting churches, musea and other institutes. We are accessible and communicative. Our background is in business development and IT.

If our collaboration works out well there are good prospects for future work.

Kĩ năng: Android, Java, Mobile App Development, Kiến trúc phần mềm, XML

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Về Bên Thuê:
( 0 nhận xét ) Zetten, Netherlands

ID dự án: #18802201

49 freelancer đang chào giá trung bình €2624 cho công việc này

Yknox

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zhandong0217

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€2500 EUR trong 30 ngày
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8.4
sphinxsolution

Hello, After carefully reading your project description, we are writing to you as we are very confident to fulfill your requirement which is to build a kiosk application for POS features. We are Sphinx solution, Thêm

€2500 EUR trong 30 ngày
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8.5
needman

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€2500 EUR trong 30 ngày
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8.6
MobiStudioz

Hi there, the pleasure to e-meet you, I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. ►►Overview- -Kiosk Donation Payment Integration Mobile App De Thêm

€5000 EUR trong 60 ngày
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7.7
technorizen

Hello, I have gone through the post and we have ready made POS solution for you. I am experienced developer having good hands on designing and developing Orders, Inventories, Warehouse and other back-end modules. Thêm

€2500 EUR trong 30 ngày
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8.6
Smart1902

Hi, Greetings! We can develop the android app customized to your needs for your business. We have experienced Android developer with loads of experience in developing complex apps including school management, dati Thêm

€2500 EUR trong 30 ngày
(95 Nhận xét)
7.5
truepai

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€2500 EUR trong 30 ngày
(40 Nhận xét)
7.3
jinzhenzhu8691

My name is LiMing. I read your project description and understood your idea perfectly i can develop your project, "Two-step donation kiosk app connected to a mobile POS payment terminal (Android, Java) " perfectly Thêm

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7.5
ITGenius927

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€2500 EUR trong 30 ngày
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7.5
langlangFan

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7.5
wuyong2020

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7.5
mitss

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€4444 EUR trong 65 ngày
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7.9
mingxiao2008

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(60 Nhận xét)
7.5
AwaisChaudhry

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€2500 EUR trong 30 ngày
(64 Nhận xét)
7.4
om26er

Hello there, I have been developing native Android applications for more than four years. I have worked on a handful of KIOSK applications in the past with proper administrator LOCK-TASK-MODE supported by recent a Thêm

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BigCityInstitute

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Julian29

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ksd711

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huzefagadi

Hello, I have developed kiosk apps before and I know how to implement it perfectly. I am an Expert in Android jetpack and have extensive know how of everything I do not see this as a single app project but As you Thêm

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7.1