Android Freelance Jobs From Brazil

Modificando conteúdo de contrato inteligente em solidity 

// spdx-license-identifier: mit
pragma solidity ^0.8.2;

contract Token {
   
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;
   
    uint public totalSupply = 100 * 10 ** 18;
    string public name = "D";
    string public symbol = "D";
    uint public decimals = 8;
   
    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);
   
    constructor() {
        balances[msg.sender] = totalSupply;
    }
   
    function balanceOf(address owner) public view returns(uint) {
        return balances[owner]

Category: IT & Programming
Subcategory: Apps programming. Android, iOS and others
What is the scope of the project?: Medium-sized change
Is this a project or a position?: Project
Required availability: As needed

Create an application with frontend in React Native to publish on Android and IOS.

The application must consume a RESTful API, that already exists and works perfectly.

You just need to focus at front end code, about 6 screens.

We already have the ReactJS code for use in browser. You can use this like reference.

You can be hired recurrently for new updates and for other of our many projects.

Category: IT & Programming
Subcategory: Apps programming. Android, iOS and others
What is the scope of the project?: Create a new app
Is this a project or a position?: Project
I currently have: I have the design
Required availability: As needed
Required platforms: Android, iPhone
I need to: Create an app
App type: Management - Management application (appointments, product stock, etc.)
Back-end is required: No
Payment gateway: No

Create an application with frontend in React Native to publish on Android and IOS.
The application must consume a RESTful API, that already exists and works perfectly.
*** You just need to focus at front end code, about 6 screens ***
You can use our ReactJS code as reference and simply migrate from ReactJS to React Native.


We already have the ReactJS code for use in browser. This code has been working perfectly and has been running in production for several months.

You can be hired recurrently for new updates and for other of our many projects.

Category: IT & Programming
Subcategory: Apps programming. Android, iOS and others
What is the scope of the project?: Create a new app
Is this a project or a position?: Project
I currently have: I have the design
Required availability: As needed
Required platforms: Android, iPhone
I need to: Create an app
App type: Management - Management application (appointments, product stock, etc.)
Back-end is required: No
Payment gateway: No

Hello, my name is Marco, I don't speak English, I'm using Google translator, I need help with a project................................

Category: IT & Programming
Subcategory: Apps programming. Android, iOS and others

Develop Delivery Application..................................................................................................

Category: IT & Programming
Subcategory: Apps programming. Android, iOS and others
What is the scope of the project?: Create a new app
Is this a project or a position?: Project
I currently have: I have an idea
Required availability: As needed
Required platforms: Android, iPhone
I need to: Create an app
App type: Promotion - Application to promote your business/company
Similar apps: Other
Back-end is required: Yes
Payment gateway: No

Hello! I hope you are doing well.

To complete our team, we need a UI designer to create new pages from scratch to our web application. Our team has already an UX Designer, a Back and a Front End.
Our Design System bases have already been defined by our precedent UI designer.


Now, we need to create the new screens based on the studies developped by the UX studies.

Hope to hear from you soon!

Prerequisits:
- > 3h xp in UI designer
- Advanced/Fluent english is mandatory.
- Dedication: 30h/week

Category: Design & Multimedia
Subcategory: Mobile app design
What do you need?: Create a new custom design
Is this a project or a position?: Project
I currently have: I have specifications
Required availability: Part time
Specific need: Other
Other Web Design: Desevolvimento de um app web.
Similar apps: Other

I need a simple telegram bot that reads messages from my telegram groups.

It does not need a graphical interface, only inputs through the terminal.

Category: IT & Programming
Subcategory: Web development
What is the scope of the project?: Small change or bug
Is this a project or a position?: Project
I currently have: I have an idea
Required availability: As needed
API Integrations: Other (Other APIs)
Roles needed: Developer