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(PLEASE READ DETAILS BEFORE BIDDING)!!! Completing/finishing an unfinished cryptocurrency Android (Java) wallet and fixing all bugs.

$250-750 USD

Closed
Posted over 3 years ago

$250-750 USD

Paid on delivery
I have a multicurrency cryptocurrency wallet with multiple features and functionalities like swap, multi level marketing/referral, in-app shopping, loans & lending, staking, Exchange, Buy& Sell cryptocurrency with credit card, paypal, etc. Design is completed. Some of the functions are also completed while some are not. I am looking for a cryptocurrency wallet professional with expert knowledge in designing and developing a decentralised cryptocurrency wallet architecture to take care of the remaining part of the project and complete the wallet development, audit the code, fix bugs and launch the wallet on Google Playstore. It is an Android wallet developed with Java. It is very important that the wallet is made to be decentralised and users get to keep their private keys. And transactions are signed on users side (devices). For emphasis sake, note that the process of transaction signature has to be done on client/user side. See reference: [login to view URL]@orweinberger/how-to-create-a-raw-transaction-using-bitcoinjs-lib-1347a502a3a With relation to API endpoint, currently parameters that are expected to be environment-specific are hardcoded and this is not correct. You would have to make them non hardcoded. It is imperative you add the possibility of Admin to manually add coins or distribute coins to directly users wallets through the Admin Panel without the need to go through blockchain networks or attracting any network transaction fees. So simply internal token transfer protocol from Admin to users wallets. Meaning users can then withdraw the tokens to blockchain wallet and pay blockchain transaction fees themselves. Please don't come in here to waste my time by bidding for this job if you don't know what is blockchain or wallet development. I am into this situation today because the original developer got stuck on the way due to lack of knowledge and so I don't want to deal with another amateur again. Therefore don't bid if you have no expert experience and don't try to lie to me by showing my false wallet you didn't develop yourself. I will provide you the current source code to check and analyse and to see the any remaining work you need to do on the wallet because all and any remaining work on the wallet will be done by you. I will not release no money to you until you complete the job fully. Delivery deadline is 10 days. Looking forward to reasonable bids. Thank you.
Project ID: 28530350

About the project

6 proposals
Remote project
Active 3 yrs ago

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6 freelancers are bidding on average $672 USD for this job
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Hello Buyer, Hope you are doing good! As I have gone through your requirements I totally agree to work with your requirement and I am sure that I can do the project very well and we are very much interested to work with you and as I see that, you are looking for a Blockchain developer. I am a good fit for this role based on my knowledge and experience including mobile applications development. To give a brief about me, I have more than 12 years of experience working in mobile applications and web applications including Android as well. our key technical skills include Android, iOS, Flutter, UX/UI design, PHP, HTML5, CSS3, Photoshop, Java, JavaScript (Node, React, Angular, Typescript), Databases (MySQL, PostgreSQL, MongoDB), AWS. Thus, technically I am well equipped to meet the requirements. Instead of sharing URLs here, you can review my profile that has 500+ reviews and would like to share reference websites similar to your requirement during the project discussion. We have already developed #taxi booking app, #food delivery app, #multi-vendor grocery delivery app, #carparkingapp #CourierApp #Ecommerce #FitnessApp #ELearning App and many more. We will provide you with the best work effort in your project and give you delivery on time, and also provide you support service after giving your delivery. I would like to discuss your project requirement, so please message on the freelancer chat box. Awaiting your positive response. Thanks. NIKHIL
$800 USD in 7 days
5.0 (3 reviews)
3.7
3.7
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Hello successful buyer My name is webxleeJack I have go through your request and its fully understand I will do your work perfectly Kindly contact me for more discussion on this project thanks
$278 USD in 5 days
0.0 (0 reviews)
0.0
0.0
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Hello, I’m a blockchain developer and an architect rich experience with blockchain (both public and private), Ethereum, Bitcoin, smart contracts, ICO, tokens. I’ve successfully completed many projects for my customers from corporate, charity and public sectors all over the world. I’ve been providing them with full cycle web solutions, cryptocurrency exchange systems, cryptocurrency trading bots and many other custom Blockchain solutions. I would appreciate the opportunity to meet with you further talk about my previous experience. Best Regards...
$500 USD in 15 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UKRAINE
Kharkov, Ukraine
5.0
2
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Member since Dec 8, 2020

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