ZATCA Phase-2 Simplified Invoice Integration

@deepthi2889

Hi, I am a Full stack developer in Microsoft technologies. I have vast experience on working on projects that suits your requirement exactly. You can check the reviews in my profile regarding the same. My area of expertise is web application development (Web API, ASP.Net web- forms, MVC, classic ASP), Web Development ( Blazor, Angular) , web services (SOAP & RESTFul), MySql & Sql Server as back end (through stored procedures). I have 10 years of experience as a full time software developer. Kindly contact me, lets discuss your requirements.

@zhens2

https://www.freelancer.com/projects/php/Twitch-Integration-Module-for-DotNetNuke/reviews https://www.freelancer.com/projects/api-developmet/ASP-NET-Web-Control-for/reviews With my extensive experience as a Senior Full-Stack Developer, specializing in .NET and C# Programming, I am the ideal professional for your ZATCA Phase-2 Simplified Invoice Integration project. Over my 8-year career, I have consistently designed and built high-performance, secure solutions that align with the exact specifications of my clients. My expertise extends to API Development and ASP.NET which are both crucial for this task. Finally, it's worth noting that I'm accustomed to working with sensitive data and maintaining the highest levels of data integrity and security. You can trust me to handle your certificate setup details diligently and provide you with a working solution that meets all acceptance criteria. Don't hesitate to reach out to me for any additional questions or clarifications; let's ensure your application is always lastingly compliant!

@mubeenm5026

With over a decade's worth of experience in the software development space, especially in full-stack .NET and .NET Core expertise, Web Crest guarantees delivering intelligent and scalable solutions custom-made for your unique needs. In fact, we pride ourselves on our 98% project completion rate with top ratings. Regarding your project to complete the simplified-invoice generation aspect of your ASP.NET Core application, we're all geared up to provide you with a service that not only meets but surpasses ZATCA's Phase 2 compliance requirements while sticking exclusively to the expressly permitted third-party libraries. Our team's proficiency extends to constructing compliant simplified-invoicing payloads by incorporating every mandatory Phase 2 tag, digital signature, unique identifier, and cryptographic stamp.

@Krazzaq47

As an experienced freelancer, I understand the gravity and importance of handling compliance projects like ZATCA. I'm reaching out to emphasize that while I may have specialized primarily in PHP platforms such as WordPress and Laravel, I do bring along a powerful baggage of skills and experience with .NET, .NET Core Web API, ASP.NET, and Microsoft SQL Server. Utilizing my toolchain which includes Git/GitHub and VS Code alongside expertise with Bootstrap and JavaScript/jQuery, we can ensure a smooth integration of simplified-invoice generation feature into your current system. Furthermore, my unique approach is marked by detail-orientation and commitment to client satisfaction – a level of dedication your project deeply deserves. I grasp the paramount importance of following standard dependency-injection patterns and avoiding third-party libraries without clear consultation with you, especially since ZATCA has strict guidelines in place. My proven adaptability lends itself well to carefully taking in requirements for your specific project. Lastly but importantly, my availability fulfills your requirement. Be it full-time or part-time, long or short-term project.s Rest assured, you will always receive dedication and professional output throughout our collaboration. Your trust in me to deliver optimized code, prioritizing security cannot be misplaced. Let's kickstart this endeavor together for an impeccable compliant invoicing solution!

@yuq4

Building a simplified-invoice generation service for your ASP.NET Core application while ensuring full ZATCA (Fatoora) Phase 2 compliance would be an effortless task for me. My name is Yu, a seasoned software engineer with over five years of hands-on experience in full-stack development and skills in .NET, API Development, ASP.NET, and C# Programming - which makes me an ideal fit for your project. Over the years, I've demonstrated proficiency in various programming languages like Java, Python, C#, JavaScript and in modern web frameworks like React and Node.js. This means I can expertly construct a clean, well-documented C# service that fits seamlessly into your existing solution while adhering strictly to the ZATCA specifications. Additionally, my robust background in database management, RESTful API development, and cloud technologies like AWS will ensure that not only do we generate compliant simplified invoices with unique identifiers and cryptographic stamps but that we also efficiently send them to the clearance/reporting endpoint, capture responses, store cleared invoice numbers and hashes as well as return base64 QR strings. All these accomplishments will be comprehensively documented in a concise README for optimal usage of the service. Let's discuss potential third-party libraries that could enhance your project. I look forward to bringing my expertise to simplify your complex-invoices!

@sumitwebrainbows

Hello, This is a very precise scope, and that’s good — ZATCA Phase 2 simplified invoices are unforgiving, especially around signing, hashes, and QR generation. I’ve worked with Fatoora Phase 2 integrations and understand the difference between “XML that looks right” and XML that actually clears in the sandbox. I’ll focus only on the simplified-invoice generation and reporting flow, exactly as you outlined. What I’ll Deliver 1. Simplified Invoice Generation (Phase 2) 2. ZATCA Reporting Integration 3. QR Code Output 4. Documentation & Integration Example ASP.NET Core controller call Common failure modes & how to spot them Technical Approach .NET 8 Standard ASP.NET Core DI patterns Clear separation of: XML construction Signing / hashing HTTP transport No third-party libraries beyond what ZATCA permits (unless discussed first) Code written to be: Auditable I’m happy to start immediately and deliver this as a drop-in service, not a rewrite. If you want, I can also include a small sandbox test harness to validate invoices before wiring into your main flow. Best regards,

@Joejoe777

Hi there, I have carefully reviewed your project requirements and understand the task clearly. After analyzing the details and expected outcome, I am submitting this proposal with a focused and practical approach to your project. I will develop a clean and well-documented C# service to complete the simplified-invoice generation piece for your ASP.NET Core application in full ZATCA Phase 2 compliance. The service will construct compliant simplified-invoice payload with Phase 2 tags, digital signature, unique identifier, and cryptographic stamp. It will handle sending the payload to the ZATCA clearance/reporting endpoint, capturing the response, and storing the cleared invoice number and hash. Additionally, the service will return the base64 QR string for placement on the printed receipt. I will also provide a concise README covering certificate setup, sandbox vs. production switching, and an example controller call. Let's discuss in detail through chat.

@Jairo51019

https://www.freelancer.com/projects/asp-dot-net-mvc/Integraci-Inventario-ASP-NET-MVC/reviews With a proven track record in ASP.NET development and extensive knowledge of C#, I am well-equipped to deliver the ZATCA Phase-2 Simplified Invoice Integration you require. Over the years, I have successfully upgraded various applications and integrated new functionalities into existing systems, making your project right up my alley. Additionally, my knack for constructing clean, well-documented code will ensure a seamless plug-in into your current application. This will enable a compliant simplified-invoice payload generation with optimal efficiency and accuracy. I have a profound understanding of standard dependency-injection patterns and therefore can guarantee that your solution will follow all relevant .NET 8 guidelines. Together, we can develop a C# service that seamlessly interacts with ZATCA's clearance/reporting endpoint while capturing and storing the required invoice details accurately. By leveraging my expertise in front-end and back-end development, we can ensure a smooth QR code integration onto the printed receipts; one that will be easily scannable by any official app.

@larasatik4

Hi, I understand you're enhancing your ASP.NET Core application to fully support ZATCA Phase 2 simplified invoice generation. With extensive experience building secure, scalable APIs in .NET Core and implementing complex business logic via clean service layers, I’m confident I can create a C# service that seamlessly integrates with your existing system. I will ensure the service meticulously constructs Phase 2-compliant payloads, handling all necessary tags including the unique identifiers and cryptographic stamps, and properly manages the digital signature. Your requirement to interact reliably with the ZATCA endpoint and to store critical response data will be met with robust, asynchronous HTTP calls and clean persistence logic. The base64 QR code generation will be included for immediate embedding into receipts, and I’ll provide a clear README explaining certificate setup, environment toggling, and usage examples—all following strict dependency injection and .NET 8 standards. I’d start by reviewing your current codebase and the Phase 2 integration details to align exactly with your architecture. Let’s ensure the sandbox environment validates fully before moving to production. Could you share which existing services or classes handle tax calculations and archival so I can best integrate the new invoice generation service? Thanks, Larasati

@habiba8730

Hi, I’m Mst Habiba Hasan, I am a Senior Full-Stack Developer with more than 10 years of experience. I can help you with: — Website development — Mobile app development — Web app development — Backend development — AI and Machine Learning development — Maintenance of existing projects — UX/UI design — Browser extensions — DevOps — Solution Architecture — Consulting — MVP development Technologies I've worked with include but are not limited to: * Python/ Django * ReactJS / React Native (including React Native Web) / Expo / Express / Redux / NextJS * Javascript / Typescript / Flow types * NodeJS / Angular / Vue.js * MongoDB / SQL (MySQL / MariaDB / PostgreSQL) / Redis * OAuth2 / Keycloak / Auth0 / Cognito * Kubernetes / Helm / Docker / Ansible / Terraform / Amplify / Firebase * AWS / Azure / GCP / on premises * RESTful / GraphQL / OpenTracing / AMQP (RabbitMQ) Contact me today to get started! I’m excited to collaborate and bring your vision to life. Best regards, Mst Habiba Hasan

@saliktechpro

Hey , I just finished reading the job description and I see you are looking for someone experienced in ASP.NET, .NET Core, .NET Core Web API, .NET, C# Programming, Microsoft SQL Server, API Development and .NET 5.0/6. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Salik.

@rogelitoc

Hello, how are you? I've carefully reviewed the description and I am confident I can deliver it on time. I understand that you need a clean, well-documented C# service for generating compliant simplified invoices for ZATCA Phase 2, and I have hands-on experience in ASP.NET Core and C# development. Here is my approach as follows: - Develop a service that constructs the compliant simplified-invoice payload with all mandatory Phase 2 tags, ensuring the digital signature and unique identifier are correctly implemented. - Integrate the service to send the payload to the ZATCA clearance endpoint, capture the response, and securely store the cleared invoice number and hash. - Provide a concise README that covers certificate setup, switching between sandbox and production environments, and an example controller call for seamless integration. I am ready to start immediately and can deliver the result fast. I'd love to discuss in more detail. Best Regards.

@kafeel1000

Hey , I just finished reading the job description, and I see you are looking for someone experienced in .NET Core Web API, C# Programming, Microsoft SQL Server, .NET 5.0/6, API Development, .NET, ASP.NET and .NET Core. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have a few questions: 1. Are all these requirements? If not, please share more detailed requirements. 2. Do you currently have anything done for the job, or does it have to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback in the last 5-6 years. 3. You will find 5-star feedback on the last 100+ major projects, which shows my clients are happy with my work. I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Kafeel Ahmed.

@makotoe4

Hello, As an AI Full-Stack Web & Mobile Automation Developer with strong expertise in .NET and C# Programming, 形I would be the perfect fit for your ZATCA Phase-2 Simplified Invoice Integration project. I have extensive experience in constructing intricate payloads and implementing secure cryptographic stamps, which aligns perfectly with your project's scope. My primary goal is delivering high-performance digital products that optimize business efficiency, and automating 40-90% of daily operations is my specialty. To ensure we meet all the objectives, I plan to utilize standard dependency-injection patterns and stick within ZATCA's acceptable third-party library list. Drawing from my expertise , I will craft a clean, well-documented C# service that not only generates compliant simplified invoices but also seamlessly integrates with your existing ASP.NET Core application. Moreover, I guarantee thorough documentation in the form of a concise README. It will provide detailed instructions on certificate setup, sandbox versus production environment switching, and even an example controller call to simplify future use. Lastly, conducting rigorous testing against the ZATCA sandbox using your certificate before delivery will validate my code’s ability to generate an approved simplified invoice with a QR code that scans correctly in their official app. Partner with me and let’s create a streamlined solution together! Thanks!

@artemb35

Hi there, I understand that your main goal is to successfully integrate the ZATCA Phase-2 simplified invoice system to ensure compliance and efficiency in invoicing processes. I have over three years of experience in developing MERN stack applications, where I successfully implemented a blockchain-based invoicing solution that reduced processing time by 40%. Additionally, I led a project that streamlined invoice generation, resulting in a 25% increase in accuracy and compliance. To meet your requirements, I will develop a robust MERN application that integrates blockchain technology for secure and transparent invoicing. I will ensure the solution is scalable and compliant with ZATCA regulations while delivering the MVP within four weeks. I would be happy to discuss your needs and get started right away. Best regards, Artem

@eduardos912

Hi! I understand you need a ZATCA Phase‑compliant e‑invoicing solution focused on simplified tax invoices under Saudi Arabia’s Zakat, Tax and Customs Authority (ZATCA) requirements — including electronic generation, QR codes, structured XML, and reporting to the Fatoora portal according to the relevant phase (Phase 1 & Phase 2). In Saudi Arabia, simplified invoices are used for B2C transactions with a reduced set of mandatory fields and must include a QR code and required metadata. In Phase 1 you generate e‑invoices electronically and share them with customers, and in Phase 2 you must also report each simplified invoice to ZATCA within 24 hours using a compliant e‑invoicing system and XML format with cryptographic stamping and required ZATCA fields. I can help you: Build a backend service that generates ZATCA‑compliant simplified invoices in XML/UBL format with all necessary fields and digital signatures. Generate and embed QR codes per ZATCA’s specifications. Handle issuance logic (unique sequential numbers, invoice dates, supplier details, items/totals). Integrate reporting to the ZATCA Fatoora API within required timelines. Ensure audit‑proof storage and error‑handling for submission failures. I focus on secure, maintainable code with clear documentation and thorough testing so your system remains compliant as regulations evolve. Let’s discuss your current invoicing stack and how you want to integrate with ZATCA! Regards, Eduardo

@MinaMaroufIt

Hello, I can take care of the ZATCA Phase 2 (Fatoora) simplified-invoice implementation for your existing ASP.NET Core system and deliver a working, sandbox-approved solution that you can confidently move to production. I understand that: - Your tax calculations and storage are already done - You only need the invoice generation, signing, and reporting part - The result must pass ZATCA sandbox validation and produce a QR code that scans correctly in the official app That is exactly what I will deliver — no extra complexity, no unnecessary rewrites. If needed, I can also: - Align the output with an existing cleared sandbox invoice - Add proper error handling for ZATCA responses - Assist during production go-live I have extensive experience in that field and you can check my portfolio. https://www.freelancer.com/u/MinaMaroufIt If this sounds like what you’re looking for, I’d be happy to discuss your current setup and get started. Best regards, Mina

@cloudaxisltd

I’m confident I’m the ideal person for your project, especially given your need for a clean, well-documented C# service that constructs a compliant simplified-invoice payload including all Phase 2 tags, digital signature, and cryptographic stamp. Your focus on seamless integration with your existing ASP.NET Core application and adherence to .NET 8 and dependency-injection patterns aligns perfectly with my approach. While I am new to freelancer, I have tons of experience and have done other projects off site. I’m skilled in building professional, user-friendly services that integrate smoothly without unnecessary dependencies. I would love to chat more about your project! Regards, Henning Munnik

@azwa04

Hi, I can easily DO your work IN 24 HOURS, DM me now to get started, PRICE NEGOTIABLE 100% Work satisfaction is provided