Development of a B2B Backend System with XRechnung and ZUGFeRD Integration

Completed Posted 2 months ago Paid on delivery
Completed Paid on delivery

The objective of this project is to rapidly develop a secure, mobile-friendly backend system for a B2B online shop within two weeks. The system will manage products, orders, customer interactions, and comply with German electronic invoicing standards (XRechnung and ZUGFeRD). To ensure performance and security, all third-party scripts and data will be stored directly on the server.

Developers must have substantial experience in backend development focused on security, efficiency, mobile compatibility, and a proven track record of delivering complex projects on time.

Key Requirements & Features:

Product Management:

-Full control over product lifecycle management: adding, updating, activating/deactivating products.

-Efficient category management for optimal user navigation.

User & Customer Management:

-Secure login with differentiated role assignments for admins and customers.

-Advanced registration processes with validation checks.

Order & Checkout Process:

-Real-time order processing with capabilities for digital signatures upon delivery confirmation.

-Employees will only have access to the delivery note during the delivery process, ensuring customer details remain secure, and they will require a digital signature from the customer upon delivery confirmation.

Invoicing & Payment Management:

-Automated generation of compliant invoices in both XRechnung XML and ZUGFeRD PDF/A-3 formats.

-Support for diverse payment methodologies based on customized business terms.

Statistics & Reporting:

-Real-time analytics on stock levels, sales performance, customer activity, etc.

Security & Data Protection:

-SSL encryption, two-factor authentication, and adherence to GDPR guidelines for secure data transactions.

Mobile-Friendly Design:

-Ensures smooth functionality and accessibility on smartphones and tablets.

Additional Features:

-Multi-lingual and multi-currency functionalities to accommodate a global market.

-Embedded APIs for seamless integration with existing systems, without relying on external links.

Proposed Technology Stack:

-Backend: PHP (Laravel or Symfony recommended due to their robust nature for complex applications).

-Database: MySQL or PostgreSQL.

-Frontend: Minimal use, relying primarily on backend services to manage operations.

Implementation Schedule:

-Phase 1: Initial Setup and Requirements Gathering.

-Phase 2: Development of Core Functionalities and Integrations.

-Phase 3: Comprehensive Testing and Deployment.

Developer Expectations:

-Experience in high-level backend development focused on security and efficiency.

-Proven track record in delivering projects within tight deadlines (2-week target for this project).

-Expertise in working with European invoicing standards and complex database architectures.

-Familiarity with hosting and managing third-party libraries locally.

-Proficiency in developing mobile-friendly applications.

This revised version now clearly states that employees will have access to the delivery note only during the delivery process and that a digital signature is required from the customer upon delivery confirmation. Thank you for your patience!

PHP MySQL Software Architecture

Project ID: #38711758

About the project

103 proposals Remote project Active 2 mos ago

Awarded to:

(63 Reviews)
6.0

103 freelancers are bidding on average €557 for this job

AwaisChaudhry

XRechnung and ZUGFeRD Hello, I am eager to assist you in developing a secure, mobile-friendly backend for your B2B online shop. Understanding the urgency and complexity of integrating features like product and order More

€750 EUR in 13 days
(136 Reviews)
8.8
ahmadayaz

Hi With more than a decade of professional experience in the field of full-stack development, I'm confident in my capacity to deliver a superior B2B backend system for your online shop that incorporates XRechnung and Z More

€500 EUR in 7 days
(316 Reviews)
8.8
shivmirthyusl

Hi, Thank you for considering my proposal for your B2B online shop project. I have extensive experience in backend development, particularly with PHP frameworks like Laravel and Symfony, which are ideal for handling c More

€800 EUR in 10 days
(379 Reviews)
9.0
gauravgargcs

Hello, Hope you are doing well I have 9+ years of experience in custom web designing and development, I’m confident my team and I can meet the demands of your B2B Backend System project. We specialize in PHP (espec More

€700 EUR in 7 days
(358 Reviews)
8.4
vashishtrupinder

As a seasoned software engineer with over eight years of experience, I have developed a comprehensive skill set that aligns perfectly with your unique project requirements. Notably, my expertise includes backend develo More

€750 EUR in 10 days
(196 Reviews)
7.4
Julian29

If you want a unique look tailored to your branding, consider creating a custom themethat not only showcases your business's personality, but also streamlines the user experience. My team and I have extensive skills in More

€500 EUR in 7 days
(97 Reviews)
7.7
kamran2012

Hello, I’m ready to help rapidly develop the secure backend system for your B2B online shop, focusing on managing products, orders, customer interactions, and meeting German electronic invoicing standards. I’ll ensure More

€250 EUR in 3 days
(61 Reviews)
7.5
umer6316326

Dear Muharrem Y., I hope this message finds you well. My name is Umer Hayat, and I am a full-stack PHP developer with over 8 years of experience in developing, customizing, and maintaining PHP-based websites for vari More

€555 EUR in 6 days
(40 Reviews)
6.8
kanika6665

Hey! I read your job description I find myself eligible for this job since I am having 10 years of extensive experience in PHP, MySQL and Software Architecture. Please Send a message so that we can discuss more about More

€585 EUR in 23 days
(73 Reviews)
6.9
larrypaul93

From beginning to end, I bring the comprehensive skill set and the determination needed to make your vision a reality. With seven years of full stack web development expertise, PHP, Laravel, MySQL, Symfony and PostgreS More

€399 EUR in 11 days
(110 Reviews)
6.8
Feriver

Hi there, I am eager to assist with the development of a B2B backend system that incorporates XRechnung and ZUGFeRD integration, focusing on streamlining invoicing and document exchange processes. My expertise will en More

€750 EUR in 11 days
(74 Reviews)
6.5
ludiac

Hello there. We aim to rapidly develop a secure, mobile-friendly backend system for a B2B online shop within two weeks. Key features include comprehensive product and user management, real-time order processing with d More

€500 EUR in 14 days
(28 Reviews)
6.4
ozbas

With 8 years of experience spanning multiple solutions and a keen eye for detail, I'm confident in my ability to rapidly and reliably develop the precise backend system your B2B online shop needs. Backend development, More

€500 EUR in 7 days
(16 Reviews)
6.5
arbu1499

Hello there! I can help you quickly develop a secure, mobile-friendly backend system for your B2B shop, managing everything from products and orders to invoicing. The system will comply with German electronic invoicin More

€700 EUR in 25 days
(60 Reviews)
6.0
LionsDenGaming

Hi, As we delve into the world of backend development, my years of experience and expertise in high-level security and efficient database architecture surely make me a strong candidate for your project. I have long wo More

€500 EUR in 7 days
(6 Reviews)
5.9
technologiesit

As a highly skilled and experienced backend developer with a focus on security and efficiency, I am confident in our ability to fulfill your need for a robust and mobile-friendly B2B backend system. With MySQL or Postg More

€299 EUR in 6 days
(100 Reviews)
5.7
santanubera9

With a decade of experience under my belt, specializing in web and database design and development, I can confidently say your project is right up my alley. Over the years, I've mastered the ins-and-outs of PHP and lev More

€500 EUR in 12 days
(120 Reviews)
6.0
TechizeBuilder

Hi, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Software Architecture, MySQL Please come over cha More

€400 EUR in 7 days
(26 Reviews)
5.6
RMMcontractors

Hello Muharrem, I am Ronan, a seasoned professional with over 8 years of experience in MySQL and PHP. I have carefully reviewed the requirements for the development of a B2B backend system with XRechnung and ZUGFeRD i More

€450 EUR in 7 days
(5 Reviews)
5.4
Isoropisths

hi I am a seasoned backend developer with extensive experience in creating secure and efficient systems for B2B applications. I am well-versed in PHP frameworks like Laravel and Symfony, making me an ideal candidate to More

€500 EUR in 7 days
(7 Reviews)
5.5