Paypal api developer freelance jobs

I'm seeking an experienced DevOps engineer who is proficient in deploying React Frontend and .NET Core 8 applications to Alma Linux with NGinx server. The candidate should have solid experience with: - Deploying React FrontEnd and .NET Core 8 Web API applications on Alma Linux in GoDaddy VPS. - Knowledge of routing of both applications with one domain and one SSL. - Knowledge of handling SubDomain. - Knowledge of Alma Linux Nginx deployment. - Understanding of .NET Core Application Settings and React.JS application settings - Understanding of Node.JS

I'm seeking an independent ASP.NET developer based in India with at least 5 years of experience, strong C# programming skills, and familiarity with SQL Server and Asp.net core. Your English skills will be crucial as direct communication with me is required. Key Responsibilities: - Develop a robust business management system leveraging ASP.NET - Implement user authentication and authorization features - Integrate appropriate APIs to enhance system functionality Ideal Candidate: - Minimum 5 years experience in ASP.NET development - Proficient in C# programming and SQL Server - Familiarity with Asp.net core - Experience in developing business management systems preferred - Strong communication skills for client call Please note that this project is only open to Indian-based ind...

I need a developer to convert my Figma design into a fully functional web application and take care of the API development and integration. Key Responsibilities: - Conversion of Figma design to app - Develop necessary APIs - Integrate APIs as required A few things to note: - I understand that these tasks may vary in complexity, so I'm looking for a developer who's comfortable with both front-end and back-end work. - Since I have skipped providing specific details on the features and API integration, I'm looking for someone who can guide me on the best options and practices in these areas. Ideal Skills: - Proficient in - TailwindCSS, react.js, , node.js, mogodb - Experience with API development and integration - Strong understanding o...

I need an automation expert to streamline my data entry process on Google Sheets through app script. Key Requirements: - The automation is triggered when the number is input in the cell. - The data source for this automation will be online forms. - we have three google sheets. and the same scenario where we need to triggered a message via Twilio. Ideal Skills and Experience: - ...triggered when the number is input in the cell. - The data source for this automation will be online forms. - we have three google sheets. and the same scenario where we need to triggered a message via Twilio. Ideal Skills and Experience: - must be able to show the demo. - Proficiency in Google Sheets and App Script. - Experience in automating data entry processes. - Knowledge of Twilio and Whatsapp API ...

Note: Integration with Stripe and Swish payment is a must have. The current wordpress website is with Divi. I'm looking to create an online appointment booking system for an eye clinic. I need this system to have a range of features that will make it more convenient for our patients and staff....system should allow patients to choose a convenient date and time for their appointment. Ideal Skills and Experience: - Proficient in integrating payment gateways such as Stripe and Swish. - Experience in developing booking systems, especially for medical or healthcare facilities. - Knowledge in setting up video conferencing functionalities within an online system, preferably using a well-known API. - Understanding of data privacy and security, especially when handling sensitive patie...

**Freelance Opportunity: Cardboard Craft Project Designer** We are seeking a talented and creative freelance professional with a background in structural engineering, mechanical engineering, or arts & crafts to develop unique cardboard craft projects for children aged 5-10. The ideal candidate will have a passion for crafting, an innovative approach to design, and the technical skills to ensure projects are both engaging and structurally sound. Please see attached file to see what are the limitations. **Project Overview:** - **Craft Focus:** Create engaging and educational cardboard craft projects suitable for children aged 5-10. - **Design Constraints:** Crafts must be limited to using specific actions and techniques: cut, score, and punch. - **Scope:** Develop 50...

I'm in need of a WordPress expert to help me create a website with 5-10 pages. Unfortunately, I was unable to provide specifics on the purpose of the website or the functionalities I'd like it to have. I'm looking for someone who is experienced with WordPress and can help guide me in determining the best features for the site. Key requirements include: - Strong understanding of WordPress and its various features - Excellent design skills - Ability to work collaboratively and provide input on the best practices for website functionality If you're a WordPress master and can help me bring my website vision to life, I'm looking forward to hearing from you!

I need a skilled Flutter developer to help me enhance my existing app with new features at the earliest. Key Responsibilities: - Collaborating with me to understand and implement the new features that will add value to the app. - Ensuring the new features are seamlessly integrated and the app's overall performance is not compromised. - Conducting testing and debugging to ensure the app is completely free of glitches before it's released. Ideal Candidate: - Must have substantial experience working with Flutter and be able to demonstrate previous work. - Should be able to work on a strict timeline and deliver the project ASAP. - Ability to work collaboratively, take direction, and communicate effectively.

I'm looking for an experienced React developer with a strong focus in frontend development. Your main responsibility will be to structure and code the frontend following best practices. We use React.js and Tailwind CSS. The figma design is ready. We need to convert figma to react.js.

I'm looking to enhance the security of an existing application by integrating Spring Security. The primary objective of this integration is to secure the API endpoints within our business application. Key Requirements: - Implement Spring Security: The main task of this project is to set up Spring Security within the existing application. This should include securing our API endpoints to ensure that only authorized users can access them. - Maintain the Existing Application: It's important that the integration is done in such a way that the existing functionalities of the application are maintained and not compromised. - Testing and Documentation: The freelancer will be expected to thoroughly test the security measures and provide clear and comprehensive documentati...

Our company is seeking an experienced developer to build a robust and user-friendly launchpad platform. The ideal candidate will have a strong background in blockchain technology, smart contract development, and platform integration. Responsibilities: - Develop and implement a secure, scalable launchpad platform. - Design and deploy smart contracts for token launches. - Ensure platform security and compliance with industry standards. - Collaborate with the team to integrate the platform with other services. - Provide ongoing maintenance and updates. Qualifications: - Proven experience in blockchain development. - Proficiency in smart contract programming (e.g., Solidity). - Strong understanding of platform security and scalability. - Excellent problem-solving and communication ski...

I'm in need of a skilled Python developer with knowledge of RAG and Chainlit to create an AI-powered chatbot. - Specific Tasks: - Develop an interactive chatbot to be used by customers - Implement RAG and Chainlit concepts to enhance the chatbot's capabilities - Ensure the chatbot can handle a variety of interactions and provide accurate information - Integrate the chatbot seamlessly into our systems and platforms - Desired Qualifications: - Proficiency in Python, particularly in relation to chatbot development - Expertise in RAG and Chainlit - Experience in creating chatbots with strong interactive capabilities The primary functionality for this chatbot will be answering frequently asked questions. The successful developer will need to be able...

I'm in need of an experienced Laravel developer, well-versed in both back and front end development, to join my team on a long-term basis. The selected professional will be the go-to person for multiple upcoming projects in the B2B space. Key Responsibilities: - Develop and maintain E-commerce platforms & Laravel Developed Softwares - Build and manage Custom CMS systems - Implement and integrate APIs effectively, know Frontend like html, css, Vue.js, react.js etc - Ensure the systems are robust and scalable Ideal Candidate: I'm looking for a Senior-level Laravel developer with over 4 years of demonstrable experience in the field. - Strong knowledge of both front and back end development with Laravel - Adept at database management and structuring - Proficien...

...professional web developer to help me build a platform that will serve as a combined social media, e-commerce, and membership site. Key Features: - **Membership Site**: - User registration and login. - Content access control. - Discussion forums. - Should be automated like Craigslist. - **E-commerce Integration**: - Tie-ins with PayPal for ad orders and other services. Content Types: - **Text and Images**: Regular textual and image-based posts. - **Videos**: Capability to upload and view videos. - **Audio Files**: Ability to upload and listen to audio. The ideal candidate for this project should have: - Strong experience in building complex, user-centric membership and e-commerce sites. - Proficiency with integrating payment gateways, especially PayP...

I'm seeking a developer to integrate Stripe's one-time payment feature into my mobile application. The app is designed for both iOS and Android platforms. I get this error from stripe: We've noticed that your Stripe integration has errors because you're trying to integrate using the Sources API. This API has been deprecated, and we are no longer allowing new integrations. Please migrate to the Payment Intents API and follow our guide to accept payments. Can someone fix this?

I'm in need of a consultancy service for integrating Telegram's VoIP calling feature into my web application. This would involve using Node.js and TDLib (Telegram Database Library). The main purpose of this integration is to offer users the ability to make voice calls directly through the platform. Key Requirements: - Implementing Telegram VoIP for seamless voice communication - Focused on making the feature user-friendly - Web-based platform The project's primary goal is to introduce a voice calling feature that is both easy to use and reliable. Hence, your expertise in Node.js and experience with TDLib will be vital. The ideal consultant will understand the nuances of VoIP technology and be able to seamlessly integrate it with our existing web application. Your role ...

I'm in need of a professional to assist me in understanding/developing an API using FastAPI and Pydantic. The primary target users of the API will be web developers. Code is written by someone else, but require some help in understanding the workflow.

I'm in need of an experienced Python programmer to assist with ongoing tweaks and feature additions to my Interactive Brokers API-based applications. Phone support is required to flesh out ideas. Key Responsibilities: - Implement new features to enhance the existing codebase. - Ensure smooth integration of the new features. Ideal Skills and Experience: - Proficiency in Python programming. - Some experience working with the Interactive Brokers API a plus. - Ability to make ongoing tweaks and add new features. - Strong understanding of trading systems and portfolio management. Please note that this project involves working with a tight budget, so cost-effective solutions are highly preferred.

Looking for php laravel developer for small modification on home page of my movie website. 1. Latest movie section is not showing on Home page, show that section again. 2. Fix a small bugs on movies or series option clicking first time showing sometimes Loading only. 3. Lates data of series are not showing. Here is the website:

Description: We are looking for an experienced Java developer with knowledge of the Bookmap API to convert an existing trading strategy from Pinescript to Java and implement it on the Bookmap platform. The developer will also be responsible for setting up the Bookmap API on IntelliJ Student Version on our machine and assisting with testing the converted strategy. Scope of Work: Setup and Configuration: Assist in setting up the Bookmap API on IntelliJ Student Version on our machine. Provide guidance and support in configuring the development environment. Strategy Conversion: Convert the existing Renko Scalper strategy, currently implemented in Pinescript, to Java. Ensure the converted strategy maintains the same logic and functionality as the original...

I have a .bin file, i can interpreat the file using a desktop software to get software number and software upgrade number from the file. file exist these info: SW: 2769022101 SW upg.: 2769033803 can you interpreat the bin file and retrive those data from the file. is it possible by php ? if not then if you use any other language then will you able to give api in json format so that i will send you file from php application and you will return json response. My budget: 500$ time: 3 days let me know if you can do thanks

I'm looking for a talented freelancer to help me create a professional and engaging portfolio website that is fully optimized for both desktop and mobile devices. The website will consist of three main sections: - About Me: This section will be a brief overview of my background, skills, and experience. It should be designed to give potential clients or employers a glimpse into who I am. - My Work: This section will showcase my projects, designs, and any other relevant works I've done in the past. It's crucial that this section is visually appealing and easy to navigate. - Contact Information: This section is where visitors can find ways to reach out to me. It should include a contact form, links to my social media, and any other relevant contact details. In addition to th...

HRM Modules: This application allows representing the relationships between employees, the groups they belong to, and the training they have attended. 1. "Employee": They are characterized by: name: The employee's last name. first_name: The employee's first name. date_of_birth: The employee's date of birth. position: The position held by the employee. establishment: The establishment where the employee works. hire_date: The date the employee was hired. contract_type: The type of contract. seniority: The seniority. 2. "Group": They are characterized by: group_name: The name of the group. group_selection_criteria: The selection criteria of the group. 3. "Training": Each training is characterized by: name: The name of the training. description: A...

... An online payment gateway for convenient and secure transactions. A fare calculator to provide transparency about costs before booking. A user registration system for passengers, ensuring a seamless booking experience. (I do not want to store any GDPR information in this section.) We will discuss the payment method options. I need your suggestions. I may use a third party like PayPal or WorldPay card payment system. As I mentioned, I do not want to store any customer bank details. We will talk about this. The ideal candidate for this job is experienced in modern web development and has previously worked on booking websites or related projects. You should be proficient in web design principles and have a knack for creating a clean and minimalist design. This pro...

I'm in need of a consultancy service for integrating Telegram's VoIP calling feature into my web application. This would involve using Node.js and TDLib (Telegram Database Library). The main purpose of this integration is to offer users the ability to make voice calls directly through the platform. Key Requirements: - Implementing Telegram VoIP for seamless voice communication - Focused on making the feature user-friendly - Web-based platform The project's primary goal is to introduce a voice calling feature that is both easy to use and reliable. Hence, your expertise in Node.js and experience with TDLib will be vital. The ideal consultant will understand the nuances of VoIP technology and be able to seamlessly integrate it with our existing web application. Your role ...

I'm seeking an experienced Flutter Developer to build application that's compatible with both iOS and Android platforms. The key goal for this application is to facilitate efficient information sharing. Requirements: 1. Strong knowledge of Flutter: You should be well-versed with its nuances, including JavaScript and mobile software development kits. A strong understanding of Dart is also required. 2. Cross-Platform Compatibility: Since the application has to be deployable on both iOS and Android platforms, experience in cross-platform mobile app development is critical. 3. Previous Work: If you've built information-sharing applications in the past, it's a big plus. Please provide examples of your past work related to this. 4. Attention to Design: The app sho...

...looking for a skilled web developer to create a platform where I can share my how-to videos and users can purchase access to them for a limited time. Once their access expires, they should not be able to view the tutorial anymore. Video must not be downloadable If you will require more than $200 please don’t bid. Lowest bid gets the work Key Features: - Video Hosting: Implement a secure and reliable way to host my video content on the website. - Limited-Time Access: Set up a system that allows users to purchase access to the videos for a specific period, after which their access will be revoked. - User Registration: Implement a simple user registration system that enables users to create accounts on the platform. - Payment Integration: Integrate Credit/Debit Cards and ...

I am looking for a developer who can create a cashier system specifically for my coworking space business with a coffee bar. The system should be able to handle cash transactions and support cashier functions efficiently. What i expect from the system : - Expenses and income with easily generated reports - Stock management (track coffee and material usage) using raw materials and compound materails Ex. I add 100 gram of espresso and 1 liter of milk to stock When i sell 4 Late (20 espresso 200 milk) I will have left 20 espresso and 200 milk in stock - in my busieness the payement is only after you check-out so everymember should have his own profile with his payments and reciepts - when you check in you have to tell the staff to check you-in so the system starts tracking your tim...

INS Global Consulting is seeking a freelance penetration tester to support our ISO27001 certification project. The focus will be on assessing the security of our GlobalView application hosted on Azure and our WordPress website hosted on WP Engine. Objectives: Conduct a thorough security assessment of the GlobalView application and WordPress website. Identify security vulnerabilities and threats. Provide actionable recommendations for remediation to meet ISO27001 standards. Scope of Work: GlobalView Application: Hosted on Azure. Developed with PHP and JavaScript, code on GitHub. Emphasis on application, data, and cloud security. WordPress Website: Hosted on WP Engine. Focus on CMS security, plugin vulnerabilities, and web application security. Deliverables: Penetration Testing Re...

As the client of this project, I'm looking for a professional who specializes in Javascript, specifically in front-end development. The key tasks for this job are: - Debugging and enhancing the current functionalities of my project. - Improve and optimize the code, troubleshooting any issues that may arise. The project is built using React, therefore experience and high proficiency in this framework is essential. The ideal freelancer will be a person with a strong problem-solving skill, a keen eye for detail, and a deep understanding of the Javascript, particularly in the ReactJS framework. Prior experience in similar roles would be a plus.

Hi, I need a VPN applic...protocol. It should support VMESS and VLESS methods. The project can be developed in Swift or Objective-C or Flutter. UI Is attached to the project. Api is ready and all information and payloads related with api will provided by me. Main features: * User will connect to server using an activation code (Like: 23wsfio3592 (include digit and char)) * User can see the remain days and traffic (Like: 25 Days left, 55 GB remaining) * User can change the server to connect to different locations (Simple combo box to select server) * Server list can show the online percentage (Api will return percentage of total traffic on server) * Api will provided best server to connect (Auto connect) that will choose server automatically by ...

? Calling All Creative Content Creators & Community Builders! ? Are you a social media enthusiast with a passion for crafting engaging content and building vibrant communities? ✨ Ready to showcase your skills and take your freelance career to the next level? Look no further! ✨ Part-Time Freelance Social Media Content Creator & Community Manager ✨ This is your opportunity to make a real impact with a dynamic startup: Unleash your creativity: Craft captivating social media content (video, graphics, stories) that sparks conversations and drives engagement (particular focus on TikToks, TikTok trends and video editing skills) Foster vibrant communities: Engage with followers, respond to comments, and build a loyal following. Become a design pro: Hone your skills with Canva...

Project is done. Just create 1 api and check api error. Not integrate. work with ftp only

...public affairs, policy analysis, media relations, and crises communications. We also organise events on behalf of European trade bodies including an annual awards ceremony for a leading sports nutrient association which takes place in London. We are looking for an experienced Event Organiser to provide essential administrative and logistical support for the team in the UK and EU either on a freelance or fixed term contract to deliver an awards ceremony in London in December 2024. You will need a positive, can-do attitude, and be able to flex your approach and make decisions at speed when required. You will perform well under pressure and possess great attention to detail. This is a hybrid role with some scheduled time in the London office will be required along with a...

I'm a looking for a freelance Flutter developer to assist with my mobile app project. The app is aimed at the general public and requires a few key features: - User Authentication: The app should have a secure user login/signup system. - Push Notifications: Implement a system to send push notifications to app users. - Integration with Databases: The app should be able to store and retrieve data from a database. The primary goal of this project is to create a fully functional mobile app. I'm looking for an experienced Flutter developer with expertise in these specific areas. The ideal candidate should have a solid understanding of mobile app development, particularly with Flutter, and have experience with database integration and push notifications. A good e...

I'm currently seeking a competent Odoo Developer for a one-month project, who should be available at a rate of $5 per hour. The task at hand specifically involves the customization of existing modules to better suit the setup and starting business operations needs of Odoo. Particularly: - The principal focus is on having meetings to help us understand Odoo, setup to customize it to a particular workflow, help customizing the system with our workflow, Help Desk. Sales and CRM module, which needs modification. - Help making a customized Odoo Studio app that involves a form and integrating the submission of the data in that form to go to spreadsheets and also send that submission to a 3rd party website - Setup a series of team automated reminders and alerts that pertain to

I'm looking for an experienced full-stack web developer to build Website A. The website includes: - User interface and design - Functionality and interactivity - Content and structure I'll provide all the design assets for the website. The website is not in WordPress. Key Skills: - Proficient in HTML, CSS, and JavaScript. - Strong understanding of PHP. - Experience in full-stack web development. - Excellent attention to detail and ability to replicate a design. This project requires a high level of skill and experience in website cloning and full-stack web development. If you're confident in your abilities, I'd love to hear from you. Please include examples of similar projects you've worked on in your proposal.

...grade management, and lesson planning functionalities - Develop a graphical design that displays the daily and weekly progress of each student in a bar graph format - Each student's picture should be displayed as a profile icon next to their name on the screens - A base design with each lesson (math, science, reading, history), and all the data is linked via Chatgpt (GPT) backend process with an API - Detailed customizable report generation process Ideal Skills and Experience: - Proven experience in UI/UX design, particularly with educational platforms - Strong familiarity with data visualization tools and techniques - Ability to create user-friendly and visually appealing design - Knowledge of integrating graphical representations, such as bar graphs, with user d...

I'm looking for an expert mobile developer to build an event app for both iOS and Android platforms. The application will primarily function as an event hub and needs to incorporate a number of advanced features. The app must support: - Event registration - Agenda scheduling - Push notifications - Selling different priced tickets per seat/location - country of the event and more - API integration with website (php script built with laravel) A similar app will be provided for reference. The ideal candidate should have solid experience in implementing these features and a strong understanding of both platforms. Being able to create a user friendly and smooth interface is essential. Knowledge of ticket sale systems and push notifications will put you at an advantage in t...

NO AUTO BIDS - ONLY ZENDESK PRO! 'm in search of an experienced developer skilled in Zendesk API integration for a project related to airline claim forms. I will provide you parts of the template and you will add the form, calculations, API integration and ticket creations. The website should be built in Laravel or secure platform. If you know about EC261 claims it makes it way easier to choose you. You will do the following: - Create a form which is predefined through parameters and questions. - Add airline and airport database and organize the data with live search preview. - Calculations based on airport distance and claim form. - Zendesk ticket creation along with correct ticket numer and relevant information. - Multilingual form and site (Swedish and Engli...

I'm looking for a frontend developer with expertise in React and Vercel, who can also work on blockchain projects, particularly in Solana. The project is a game website targeting cryptocurrency enthusiasts. The backend is already developed using Strapi. Your main task would be to make the game functional on the frontend. Key Requirements: - Solid experience in frontend development with React and Vercel - Previous work on blockchain projects, specifically in Solana - Understanding of cryptocurrency and blockchain technology - Familiarity with developing game websites - Can work with ports and making show real-time updates to game as it happens (since it is multiplayer) Key Tasks: - Integrating login with wallet - Displaying previous games - Ensuring a seamless user experience ...

I need a Node.js expert to help me integrate SSO from my system with Azure Active Directory B2C. You'll focus on writing the NodeJS part, not Azure. We prefer someone with prior experience in this. Key Responsibilities: - Implementing user authentication with Azure Active Directory B2C - Ensuring the integration works seamlessly with my system Ideal Candidate: - Proficient in Node.js - Previous experience working with Azure Active Directory B2C - Strong understanding of Single Sign-On (SSO) implementation The project may involve additional communications during the work, so prefer someone with prior experience in this.

Hi, Looking for a UI developer who is working full time as a freelancer and can give us 2-4hrs daily for long term on our ongoing projects. Full stack developers/Php developers please don't apply only html/css developer should apply. Budget $5/hr or 400 INR/Hour Only apply if you communicate properly and once needed. About Us: We are a German based company and our IT office is in New Delhi.

I need a skilled .Net MAUI developer to assist me with my existing project. The main tasks for this project include: - Fixing bugs: The project is currently experiencing some issues which are negatively affecting the user experience. The specific bugs are not provided in this brief, but I can share details during our discussion. - App Publishing: Once the bugs are resolved, you will be responsible for publishing the updated version of the app to both Android and iOS stores. - Delivery of the final source code and making sure it is running on our machine. The ideal freelancer for this project should: - Have a proven track record in debugging and resolving issues in .Net MAUI projects. - Be proficient in the publishing process for both Android and iOS stores and should be able ...

I need one new Flask developer for some easy tasks now I need work for long term I need work from Pakistan or Indian Coder

I'm in need of a skilled React developer to help build a cutting-edge real-time web app with a focus on three key features: Realtime chat, Push notifications, and Realtime data updates. Key Project Requirements: - **Realtime Chat**: The web app needs to support real-time chat functionality, allowing users to communicate seamlessly and instantaneously. - **Realtime Data Updates**: It's important that the web app can update and display data in real-time, ensuring users always have the latest information at their fingertips. Authentication Method: I'm looking to implement an "auth_key" based authentication method. This refers to API key authentication, where users will be authenticated by providing an API key. This method is crucial for keeping ...

...part of the function does not run, causing the animation to break and posts not to load. I'm in need of a freelance web developer with considerable JavaScript experience and in-depth knowledge. The key task will just be to improve this function so it runs each time the homepage is loaded or returned to. Key Requirements include: - Vast experience in JavaScript - Proficient in browser compatibility issues - Keen attention to functionality and performance detail Your role will be to diagnose the issue, remedy it, confirm the functionality by adequately testing in Chrome, Safari and Firefox. I can help explain the function and clearly show where the issue is, I just require a developer with a more advanced understanding of JavaScript to optimise the functio...

I'm in need of a skilled PHP developer to implement a table filtering and search feature on an HTML table. - The search functionality is to be based on name, facilitating instant search results as the user types. Ideal candidate should have: - Proficiency in PHP and HTML - Experience with implementing search features on HTML tables - Understanding of optimizing search functionalities for large data sets.

...e-commerce website for any business. This project requires seamless integration with specific payment systems. Key Points: - E-commerce Focus: The primary purpose of this website will be to facilitate online sales. Therefore, the design must be optimized for user-friendliness, and a smooth purchasing process. - Payment System Integration: While I don't need integration with popular systems like PayPal or Stripe, I need the freelancer to be capable of integrating "Other" payment systems which I will specify later on. Ideal Skills & Experience: - Proven experience in designing and developing e-commerce websites, with a strong portfolio to support it. - Proficiency in integrating various payment systems, ensuring they operate smoothly and securely. - Good c...

So i want rewrite a whole my website demo (laravel) to be backend = node.js framework frontend = react.js framework website = << topup gaming store this site have 5 payment gateway (linqu, tripay, ipaymu, duitku, tokopay) i want add 1 more payment gateway (xendit) this site have 3 api to product vendor and i want add 1 more api and last one have 1 api to unofficial whatsapp gateway Please give me your proposal about the cost and time for finisih this job. After this task, i want make an application by flutter but maybe later.