Free backend system design jobs

I am searching for an advanced level Web3 backend developer who has extensive experience working with Ethereum. The scope of the project requires the following functionalities to be integrated: - Smart contract implementation - Token creation The ideal candidate should have a strong grasp of blockchain technology, particularly Ethereum, and a proven track record of implementing smart contracts and creating tokens. They need to maintain the highest level of quality, accuracy, and security in their work. Advanced skill set in backend development is a must.

Job Description: We are seeking an experienced software developer to create code for a power electronics control system. The project involves using an Arduino DUE and the IMC101T T038 motor controller. The software should control and regulate both the grid side and machine side using Space Vector PWM (SVPWM). Communication between the Arduino and other components will be handled via serial communication. Additionally, the system should include a quadrant display using 4 LEDs to indicate whether it is operating in motor or generator mode. All datasheets and circuit diagrams will be provided. Key Responsibilities: Control and Regulation: Implement SVPWM on both grid and machine sides. Grid-side control: Adjustable power factor (cos(φ)), current, and power. Machine-side c...

...developer to join our team and help finalize our ride-hailing application. The app is nearly complete, but we need assistance in implementing and refining our two-way communication system within the match-making component. The ideal candidate will have a strong background in Flutter, Bloc state management, and Node.js APIs. **Responsibilities:** - Debug and enhance the two-way communication functionality in our ride-hailing app. - Collaborate with our backend team to ensure seamless integration with Node.js APIs. - Implement and optimize Bloc state management for efficient state handling. - Ensure the app’s match-making system works reliably and efficiently. - Conduct thorough testing to identify and fix any bugs or performance issues. - Maintain high code q...

...record of previous balance, and new balance after addition, and login of who altered the balance. Bonus System (Missions Module converted to Bonus) Add Individual Rollover for this specific bonus. Maintain the option by provider or specific game. Released Bonus Report with Observations. In the Player's Internal Registration, there is an option to activate the bonus for them and check the progress of the rollover completion. Player Internal Registration When registering the player, add wallet directly when creating the new user via admin (currently, the wallet is only created if created via the main site). Add Tabs for Bonuses available for release according to Bonuses available through the system. Affiliates Panel Report of Deposits made by referrals. Report of With...

Looking for a professional who can integrate a donation page into a website using CCAvenue as payment gateway.. Tasks Use our donation page with 6 different donation options and amounts and make the checkout via CCAvenue work. Design/create form to collect donor details (name, email, address, PAN etc) based on a sample form that will be provided. Backend Development (PHP): Integrate CCAvenue API using their PHP libraries. Develop functionality to capture donation amount and donor details. Send transaction data (amount, details) securely to CCAvenue for payment processing. Create a database to store donor information and transaction records. Payment Processing: Handle CCAvenue response (success/failure) after payment authorization. CCAvenue account to use for this project...

I'm looking to create a comparison website to help potential traders...different proprietary trading firms, their key features, and offerings. - Users should be able to filter and compare the firms based on various criteria like trading strategies, capital requirements, and more. - A user-friendly interface and robust backend that can handle large amounts of data and provide real-time updates are crucial. Ideal Skills & Experience: - Web development experience, particularly in building comparison websites. - Understanding of finance and proprietary trading firms. - Proficiency in database management and user interface design. - Ability to create a responsive site that works well across different devices. - Knowledge of SEO best practices to ensure high visibility. ...

...animations that utilize anamorphic illusions to enhance public spaces, highlighting innovative design and cultural heritage through interactive digital art. Requirements: -Proficiency in Blender for 3D modeling and animation, with a strong portfolio showcasing relevant work. -Experience in scripting within Blender to automate tasks and enhance animation functionalities. -Knowledge of integrating Blender projects with other software for interactive displays. - Demonstrated ability to work on projects that combine art and technology, particularly in public or large-scale settings. Deliverables: A series of high-quality anamorphic animations designed in Blender, ready for public display. A backend system for content management that facilitates easy updating and ...

We make cozy games for mobile and cross-platform. We are an indie team focused on creating our own high quality games and IP via global free-to-play mobile games. Our mission is to championing social good and the sustainability of our ecosystems through games. Want to join a small but experienced and passionate game dev team as a full stack developer? Develop and manage code and infrastructure such as cloud server, backend databases, APIs, and automation scripts. Help build powerful game ops tools with simple frontend UI. - - - Job Specs: - Create backend solutions and integrate with cloud platforms like AWS and Digital Ocean. - Design and deploy modern frontend user interfaces using the latest UI technologies. - Build secure and scalable mobile app REST API...

...team, including backend developers to ensure cohesive integration of front-end and back-end functionalities. Key Responsibilities: Design Development: Create wireframes, mockups, and potentially prototypes for key pages such as the home page, raffle entry page, and user dashboard. User Experience Optimization: Ensure an intuitive and seamless user experience, especially for those unfamiliar with blockchain technology. Responsive Design: Develop a platform that is fully responsive and optimized for all devices and screen sizes. Brand Integration: Incorporate provided branding elements and suggest enhancements where necessary. Existing logos will be provided, but we are open to redesigns or improvements. Desired Skills: UI/UX Expertise: Strong background in m...

It is necessary solve two bugs to a Laravel application regard the frontend of condition use php 7.4. if it is necessary you must do changes to the database and the backend

...both the frontend and backend development of our WordPress websites. Your main tasks will include creating and editing custom themes and plugins, optimizing website performance, and implementing new features (such as translating plugin language, or overwriting some existing AI features). The ideal candidate should have strong knowledge of WordPress, PHP, MySQL, and frontend technologies such as HTML, CSS, and JavaScript. Responsibilities: - Develop and maintain WordPress websites - Create custom themes and plugins - Optimize website performance - Implement new features and functionalities Requirements: - Proven work experience as a WordPress Developer - Strong proficiency in WordPress, PHP, HTML, CSS, and JavaScript - Knowledge of frontend and backend d...

I'm in need of a proficient developer to create a comprehensive computer (in a network) probe software compatible with Windows and Linux. The software should have the following key features: 1. find systems in a network and log details to a CSV file/db table. hostname, ip addresses , mac address etc along with hard disks ,os,version etc. 2. find applications installed in the computers Ideal Skills & Experience: - Prior experience in developing network monitoring and security auditing software. - Proficiency in programming languages suitable for cross-platform development. - Strong understanding of network protocols and security standards. - Experience with compliance monitoring tools and techniques would be an added advantage. Please include related s...

I'm in need of a video / animation expert to develop three 4-minute 3D animation videos showcasing the features of an ERP system. The animations will demonstrate the system's interaction with people and various business processes. Key Points: - The animations should focus on key areas of the ERP system including user interface and interaction, data processing, reporting, and integration with other systems. - Specific use cases to be covered include: - Ledger accounting - Reporting mechanisms - Data flow within the system The ideal candidate for this project should have a strong background in: - 3D animation - Experience in creating engaging and informative business animations - Understanding of ERP systems would be an advantage, though not mandato...

Job Title: Windows System-Level Gaming Keyboard Emulator Developer Project Overview: We are seeking a skilled developer to create a Windows-based keyboard emulator, specifically designed for gaming. The emulator must operate at a low system level to effectively mimic keyboard inputs for gaming purposes without requiring hardware. Key Requirements: OS Compatibility: The emulator should work exclusively on Windows systems. Emulation Focus: Aimed at simulating keyboard inputs for gaming applications. Ideal Skills and Experience: Proficient in Windows application development. Expert in low-level programming, specifically in system-level assembly language. Knowledgeable in gaming input emulation and keyboard input simulation. Experience in backend applications is ...

I'm in need of a seasoned Laravel Developer with extensive experience in PHP and Laravel. The ideal candidate should have 7-8 years of proven track record in web application development. Our project is an exciting opportunity to work on both frontend and backend development, as well as bug fixes and maintenance. Key Responsibilities: - Collaborate with the IT Manager on assigned tasks - Frontend and Backend Development - Maintain and fix bugs in the application Skills and Experience Required: - Over 7-8 years of experience in web application development - Proficiency in PHP and Laravel - Strong problem-solving skills - Past experience in similar web applications - Ability to work independently and as part of a remote team - Excellent communication and time-management s...

I'm looking for an experienced web developer to create a comprehensive IELTS Teaching Management System in PHP. The system will be utilized by students, teachers, and administrators. Key Features: - Student Management: The system should provide tools for student registration, tracking student progress, and managing student profiles. - Lesson Scheduling: Users should be able to schedule lessons, view lesson details, and manage their availability. - Progress Tracking: The system must include features for tracking student progress, including test scores, attendance, and performance analysis. - Payment Gateway: Integration with a secure payment gateway to facilitate online transactions for course fees. Ideal Skills: - Strong PHP programming skills and experti...

I have a Vue 3 application that uses Quasar. The application is basically a blog with a few routes and simple pages. It uses backend API to fetch the data for articles. I want to deploy this app ideally to Vercel or Netlify. For SEO reasons, I want to use server-side rendering (SSR) so that user receives already rendered HTML and the API call is not necessary on the client. On the client, the app should hydrate so that it becomes interactive. The app is already working and when it is deployed without SSR, it works correctly. So you don't need to develop the app. You will need to configure the SSR in the project, configure the deployment location (Vercel or Netlify), and potentially adjust the existing JS code so that it works correctly in SSR environment (maybe this isn'...

I'm in need of a web-based job card system that will allow the creation and editing of digital job cards. There is also a requirement for quotes, parts / inventory, archived jobs, and customer management. Both employees and managers will need access to the system, with an admin login section for authorization of completed job cards. We would like the system to export completed jobs to CSV file for automated invoice generation in Quickbooks Online. We will also require the system to import the customer database from Quickbooks in CSV format. Key Functionalities: - Creation and Editing of Jobs - Ability to use system on-site / remotely through the use of iOS or Android web browsing. Some - Ability to select a simple job status from a drop-down comb...

I'm looking for an experienced Django developer to work on the backend of my project. Key Project Goals: - The primary focus of this project is on backend development. You should have a strong understanding of Django and be able to handle complex backend tasks. Ideal Skills and Experience: - Extensive experience with Django is a must. - Strong understanding of backend development. - Ability to work on complex backend tasks. - Good communication skills. - Previous experience with similar projects is a plus. Please note that the project is already defined and the focus will be solely on backend tasks. Your role will be to improve the backend of the website. Feel free to ask any questions for more information.

I'm running a website with an Apache2 server backend and a React frontend. The problem is, the frontend is loading with HTTPS while the backend is using HTTP, despite having a proper SSL configuration in the etc/sites-available confi file. I'm currently using a reverse proxy server to redirect HTTPS traffic to my backend server and I'm using a secure connection (HTTPS) to communicate between the reverse proxy server and the backend server. Key tasks include: - Troubleshoot configuration issues to identify the cause of the HTTP/HTTPS discrepancy - Ensure that the SSL configuration on the Apache2 server is indeed correct - Verify that the reverse proxy server is properly configured to redirect HTTPS traffic to the backend server No access c...

...to integrate a Firebase user backend to my React frontend. I also need to add some backend operations to this user backend, specifically creating appointments and creating a community page. Key Requirements: - Firebase User Backend Integration: This includes setting up the Firebase backend and ensuring smooth communication between it and my React frontend. Backend Operations: 1. Create Appointment: The primary goal of this feature is to allow users to book services or sessions. The process should be straightforward and user-friendly. 2. Create Community Page: This function needs to enable the community to form and interact within a dedicated space. Ideal skills for this project would include: - Proficiency in Firebase and React. - Experien...

I'm looking to develop a Software as a Service (SaaS) website specifically for the legal industry. Here's what I need: - User Registration and Login system. - Payment Processing integration. - An AI Chatbot with capabilities for information retrieval and analysis. - An OCR (Optical Character Recognition) system. - Both Frontend and Backend development are necessary. - Seamless integration of the AI chatbot, OCR, and payment processing into the website. - A well-documented API to allow for future expansion. The ideal candidate for this project should be proficient in Python (Django/Flask), laravel, node js, vue js, AI programming, and API development. Experience with building SaaS platforms, payment processing integration, and chatbot development would be a...

I am currently dealing with an issue on my AlmaLinux Development system that is preventing it from booting. The system is displaying an error message upon boot-up. This issue has arisen following some recent configuration changes. The ideal candidate for this job should be well-versed in AlmaLinux system administration and should have experience with troubleshooting boot issues. It would be great if you have a good understanding of system configuration and how it can impact booting. Your task would be to solve this booting issue and ensure the system is up and running smoothly. Key Skills: - AlmaLinux system administration - Troubleshooting boot issues - System configuration expertise This is an urgent job, and I need a professional who...

I'm looking for an adept programmer who can create a system that automates the process of filling online forms with data. The ideal candidate should have: - Extensive experience in Automation programming - Strong knowledge of form-based online platforms - Proficiency in cross-verifying data with existing databases Key tasks: - Design and set up an automation system to accurately fill online forms with data. - Implement a cross-verification function that checks the data to be filled against existing data to ensure its accuracy. My expectations for this project are a system that will accurately and automatically populate online forms, saving valuable time and reducing potential errors caused by manual data entry. Your ability to add a cross-verificatio...

I'm in need of a backend developer with experience in PHP and deploying Flutter apps on shared hosting. Key Requirements: - Configure the backend using PHP - Deploy the Flutter app on a shared hosting environment - Ensure the app functions properly in this setup - Provide any necessary support during and after the deployment Please note that I've already set up the custom domain for the app, hence your assistance won't be needed in that aspect. Ideal Skills: - Proficiency in PHP - Previous experience deploying Flutter apps on shared hosting - Strong understanding of server configurations and optimization - Good communication skills and ability to provide technical support if required. Looking forward to your bids.

...html page only, no backend development necessary (php receiving the form optional, see below). „Nice Admin“-Template must be used: Project Requirements: - Convert Microsoft Word Document (2 pages) to Web Form: Transform the content and layout of the Word document into a web-based form. - Responsive Design: Ensure the form is fully responsive and looks great on all devices (desktop, tablet, and mobile). - Form Fields: Create all necessary form fields as outlined in the Word document, including text fields, dropdowns, checkboxes, addable rows table, etc. - User-Friendly Interface: Design a clean, user-friendly interface. Skills Required: - Proficiency in HTML, CSS, JavaScript, and responsive web design - Experience with

this is a static page, i need to create dynamic add of posts from top box. top box is like facebook with a create button, then you should list the posts. in the first box you need to add category (an empty select with cat1 cat2 cat3) a calendar date and an autocomplete for searching country-city ok? i will provide you api and project on github so im here for anything that is related to backend - create post - retrieve post - edit a bit the card

I'm looking for an expert Flutter developer who can crea...who can create a social networking app for both Android and iOS. Here are the key features I'd like to be included in the app: - Messaging System: Users should be able to send and receive messages from other users. - Profile Customization: Users should have the ability to customize their profiles with personal information, profile picture, and more. - Photo & Video Sharing: The app should allow users to share photos and videos with their connections. Experience in developing social networking apps is preferred, as well as a good understanding of both Android and iOS platforms. Knowledge of Flutter, Firebase or other backend services, and UI/UX design will be a big plus. Please provide examples o...

Hey users, i already have my static portfolio written in html,css and javascript. I just wanted to make it as dynamic. I wanted to add all my content to be loaded from firebase backend. Link to portfolio : It is just a small project and in near future will also look for SEO For Portfolio Connect with me if you are interested

I am in need of a skilled individual who can create a robust and highly functional ERP system for me. This system should encompass: - Inventory Management - Sales and Purchase Management - Human Resources Management In addition to the above, I also require the system to handle Manufacturing Management, with a focus on: - Production planning and scheduling - Inventory control - Quality assurance The ideal candidate for this project will have extensive experience in system development and a comprehensive understanding of ERP systems. You should be familiar with all the mentioned functionalities and able to deliver high-quality results. Kindly note that im looking for some in Riyadh KSA

I'm seeking a skilled freelancer to assist me with leveraging the free tier of Google Cloud ($300 credit) . I am a Google Cloud Platform account holder who wants to install and configure S/4HANA 2024. The primary goal for this project is development and testing. I'm looking for a freelancer who has a good understanding of both SAP S/4HANA 2020 and Google Cloud Platform. Your role will be to install and configure the software, ensuring it runs smoothly on the cloud platform. Key requirements include: - Expertise in SAP S/4HANA 2024 - Proficiency in Google Cloud Platform - Experience with installation and configuration processes - Ability to troubleshoot and offer post-installation support if necessary. Your assistance in this project will be highly appreciated.

I need a competent writer with a strong understanding of computer science to help me research and write content for a web-based system. Key Requirements: - Proficiency in various areas of computer science, particularly in Artificial Intelligence, Data Science, or Cybersecurity. - Ability to thoroughly research and cover a range of topics within computer science, such as Machine Learning, Algorithms, or Network Security. - Excellent writing skills and the ability to articulate complex technical concepts in an engaging and easy-to-understand manner.

I’m looking for a skilled developer who can convert my existing HTML5 Casino Game to an online Flask Backend. The backend should integrate with a PostgreSQL database. Key Functionalities: - User Registration and Login: Implement a secure user registration and login system that allows players to create accounts and access the game. - Game Settings Management: Develop a platform that can manage the game settings, with a particular focus on the Slot Machine settings. These include Win Occurrence, Free Spin, Balance, and other relevant parameters. - Database Integration: Connect the Flask backend to the PostgreSQL database so that it can store and retrieve the necessary game and user data. Ideal Skills and Experience: - Proficiency in Flask and Postgr...

Objective of the project The goal of the project is to develop an automated system that generates high-quality content related to beauty, cosmetics, skin and hair products, and makeup. This system must: Collect content from various sources (URL, RSS, XML) configurable by a Super User. Filter and process such content using artificial intelligence (AI) to improve it. Automatically publish enhanced content to a WordPress blog and various social networks. Provide an intuitive administration panel for managing system sources and configurations. Technologies and Tools Used Backend: Django Frontend: React Database: MySQL or PostgreSQL Monitoring: Prometheus and Grafana Containers and Orchestration: Docker and Kubernetes This project is already validated by AI tools ...

...seamlessly with external services. Key tasks include: - API development: You should have a proven track record of creating robust, efficient APIs. - Integrating with third-party services: The APIs you develop need to be able to communicate effectively with a range of external platforms. - Database design and optimization: While not the core focus, a strong understanding of MongoDB and how to optimize it for performance and scaling is beneficial. The project is centered around building a backend system that can handle a variety of tasks and interactions. While the exact scale of the project isn't currently known, the potential for growth is high. Consequently, a focus on performance and scalability is crucial, even if it is not explicitly stated as such by the...

Develop or sketches to run dual processors in circuit as described in schematic , The light, called Eos 24, has three use cases or modes: 1. SW1 is closed: The neopixel runs constantly until SW1 moved to open. 2. SW1 is open: The neopixel runs when the PIR is triggered until interval4 is elapsed. When SW1 is open and interval4 is elapsed Eos 24 is in standby mode and the Neopixel is dark. 3. SW1 is open and interval4 is elapsed. This is standby mode and the Neopixel is dark until the PIR is triggered again.

As a client, I'm in need of a gifted freelancer who will design an AI chatbot that works hand-in-hand with Google Assistant. This chatbot will be programmed to carry out multiple tasks: - Answer typical queries - Offer relevant advice - Schedule meetings - Perform any function that is currently possible for it to do verbally The AI chatbot should be compatible with Slack and eventually extend to all phone applications. The chatbot should integrate with a database. We could explore other data integration requirements during our discussions. Ideal applicants are those familiar with AI chatbot programming, Google Assistant integration, and broad-reaching app compatibility. Database integration knowledge is essential, with bonus points for those who can offer a variety of data...

I need some to fix and the following function to my app. 1. Add name and Phone number to the Firebase. -login email and password is working.-design is ready only backend needed. 2. Create a forgot password function. Design is ready

...manager system from Google Script (Javascript) to Office365. The primary purpose of this migration is to rebuild the system on a completely different platform. Key Requirements: - Proficient in Google Script (Javascript) - Familiar with Office365 platform - Previous experience with voicemail manager systems is a plus The ideal candidate for this project should have a strong background in both Google Script and Office365, with a particular focus on migration projects. Since the goal is to enhance the system's reliability, it is important that the freelancer has a good understanding of the intricacies of voicemail manager systems. The project's success will depend on the freelancer's ability to effectively transfer the existing system's functionaliti...

I'm seeking a skilled individual to assist with...individual to assist with a multi-machine power system dynamics analysis and control. The primary goal of this project is to optimize power flow efficiency. Key Requirements: - Proficiency in power systems dynamics and control analysis - Experience with multi-machine systems - Ability to optimize for voltage levels Your responsibilities will include: - Conducting power system dynamics analysis - Implementing control measures to optimize power flow efficiency - Focusing on voltage levels optimization Ideal candidates should have a strong background in power systems, and be able to work on a multi-machine system. This project will require a good understanding of power flow and voltage levels in order to maximize ...

I'm seeking a seasoned freelancer to devise a Derby car timer using Arduino ...lane to show timing results. - Winner Identification Feature: An 8x8 matrix screen for indicating 1st and 2nd place finishes. Ideal Skills and Qualifications: - Working knowledge of Arduino programming language. - In-depth understanding of microcontroller-based systems. - Hands-on experience with infrared sensor technology. - Ability to integrate multiple components into one cohesive, functioning system. - Practical knowledge of LED Display systems, specifically the 7-Segment LED HT16K33 Backpack. - Comfortable with crafting solutions for race-based project requirements. In bidding, please showcase your experience with Arduino Uno projects, and if possible, share examples of similar timing systems ...

Validation of Sample implementation of One Loan product (Business Loan) created by Transdigital team. - Help Transdigital team in End to end testing of the system after product configuration - Creation of Roles and Users - Generation of Reports - Conducting on the job training for Trasdigital Business Analysts

Hello freelancers, I am searching for high-quality, copyright-free background music for my YouTube channels. I manage two channels: one focused on travel and the other on tutorials. I need music that is engaging, pleasant, and aligns well with the content of each channel. **Requirements:** 1. **Copyright-Free Music:** The music must be completely free of copyright restrictions, suitable for monetized videos. 2. **Variety of Genres:** Music should cater to both travel and tutorial themes, ranging from upbeat and adventurous for travel videos to calm and focused for tutorial content. 3. **Duration:** Tracks should be varied in length, from short 30-second pieces to full 3-5 minute tracks. 4. **High-Quality Audio:** Music must be of high quality, professionally mixed a...

I'm looking for a skilled developer to help me customize my current PHP SMS system. It's primarily used for sending notifications. I have the script and has been working with twilio, however all of a sudden it stopped working due to twilio changes I need assistance in modifying the script

... and deployment of both frontend and backend applications. - Integrate the pipeline with our GCP infrastructure, including Compute Engine, Cloud SQL, and Cloud Storage. 2. Logging Setup: - Configure logging for all services: -- Frontend (Nginx, ): Log HTTP requests, errors, and application logs. -- Backend (Gunicorn, Django): Log application errors, access logs, and system logs. -- Celery and Beat: Log task execution and periodic tasks. -- Database (Cloud SQL): Log database queries and errors. -- Redis (Cloud Memorystore): Log Redis operations. - Collect and store logs centrally using GCP's Stackdriver Logging. - Set up log rotation and retention policies. 3. HTTPS Domain Configuration: - Configure an HTTPS domain for both frontend and backend service...

I need a skilled Spring Boot developer to assist with the completion of my website banking system. Key tasks include UI design, functionality implementation, and integration with an embedded database. - You will be provided with the existing codebase and we will discuss further details once the project is agreed. - Your experience with website backend and frontend development, particularly with HTML, will be critical. - Urgent completion of this project is essential. - Although it is not specified, any knowledge of security features in a banking system would be beneficial. Looking forward to hearing from you. Thank you.

I'm in need of a talented developer to design and establish a platform that connects volunteers with nursing homes. The features do include: - User profiles which will consist of the name, contact information, as well as skills and interests. - Search and filtering options that will make finding specific user profiles easier. - A user-friendly messaging functionality for enhanced communication. The user roles on the platform are divided into two categories: - Volunteers who will utilize this platform to seek service opportunities in nursing homes. - Administrators in charge of monitoring and managing the platform. The ideal freelancer for this project should have experience in web development with a focus on user interface design and backend functionality. Ba...

I require an advanced database to streamline church operations. It must include: - Member management: This involves recording personal details of each member, tracking attendance, and allocating to the right departments. Each member's record should also include household and family details, with specific fields for spouse and child...fields like gender, age, membership status, notes, and whether they serve as workers or ministers. - Financial management: The platform should have capabilities for recording and tracking financial contributions. Ideal freelancers will have experience in building similar database systems, with a keen understanding of how to translate our church's requirements into a user-friendly, efficient system. Knowledge of member management systems wi...

1. Create a customer registration system 2. Publish ads with a online payment gateway 3. Call button for mobile phone when scrolling needs to call the registered phone number for customer 4. Automatic email reminder for ad expiry and if there is no payment ad has to be removed automatically.

I need a custom-built website that is visually appealing, optimally functional and user-friendly, and compatible across all devices. The site will serve as an e-commerce platform where visitors can view and purchase our products. Signup . The order processed should print on the certain computer linked to the website. It should be supported by Strong Backend database . Key Features: - I need a custom-built website, not a WordPress or Shopify site. - The CMS should have robust product management tools, allowing me to add, remove, or update items under different categories. - Content editing is essential. I need to be able to update the content of the site regularly. - The CMS should also include user account management. This will allow registered customers to have accounts on the s...