PEPPOL/E-Invoicing Specialist for Fawtara Platform

@a4logic

Hello, As a PEPPOL/E-Invoicing specialist, I have extensive hands-on experience with all the elements mentioned in your project description. I've certified and operated Access Points on multiple PEPPOL networks, including [INSERT NETWORK NAME] in [INSERT YEAR]. This experience positions me excellently to execute the configuration and integration requirements for your Fawtara Platform. Understanding the five-corner model inside and out is second nature to me. The SMP resides within the Service Metadata Locator (SML), and this centralized composition is crucial to developing and implementing a successful e-invoicing platform. Identifying these relationships is essential for a smooth implementation process, something that's always been my top priority. With an in-depth comprehension of EN 16931 and various national PINT profiles, I can effectively map UBL 2.1 documents and navigate any Schematron validation issues that may arise. Additionally, having worked with several tax authorities who operate centralized SMPs, I'm confident of managing the unique challenges they bring. Finally, my commitment to delivering exceptional quality work by respecting given timelines made me successful so far. To ensure our compatibility, let's start with a small paid scoping task before full engagement. Feel free to go through my TPM [OR Insert your chosen reference/training certificate] for additional information regarding my competency. I'm eagerly Thanks!

@kamran2012

Interesting project, I will configure your PEPPOL Access Point with AS4/eDelivery messaging, implement SMP/SML lookup against Oman's centralised model, build the UBL 2.1 / EN 16931 to PINT-OM document mapping with Schematron validation, and drive your OTA sandbox conformance through to a clean pass before your mid-July deadline. One critical area — Oman's centralised SMP changes the trust model significantly. Rather than each AP publishing its own metadata, the OTA controls the registry, so your lookup and certificate validation logic must account for that single authority. I will structure the integration so switching between centralised and federated SMP models requires minimal rework. Questions: 1) Are you building on Oxalis, Phase4, or a commercial AP stack — or is that decision still open? Looking forward to potentially working together. Thanks, Kamran

@mahamadali

Hi Sir, I have experienced in building e-invoicing xml attach with generated invoice pdf and peppol api integrations, it was ZUGFeRD e invoicing standards for germany. I did not implement this same one Fawtara Platform but I have experience and condident that I will deep research on it and implement e-invoicing perfectly follows Fawtara E-invoicing standards. If this is related to web implementation then please reach out to me. Thanks

@diektech

Hi, This is Elias from Miami. I checked the details and understand you're looking for someone to help drive the PEPPOL interoperability layer through OTA sandbox conformance, including Access Point integration, AS4 messaging, SMP lookup, UBL/PINT-OM validation, and certification-related requirements. The real challenge here is not generating invoices, but ensuring end-to-end interoperability across the full five-corner model while meeting both OpenPeppol and Oman-specific validation requirements. Most delays happen around profile-specific business rules, Schematron validation, certificate management, and sandbox conformance edge cases. I've worked on enterprise integrations involving XML/UBL processing, API interoperability, PKI certificates, validation pipelines, and compliance-focused data exchange systems. I have a few questions to get a better understanding: Q1 – Have you already selected an Access Point stack (Oxalis, Phase4, commercial provider), or is that decision still open? Q2 – Is the existing platform already generating UBL 2.1 documents, or does mapping remain part of the scope? Q3 – Will the initial scoping task focus on architecture review, sandbox readiness, or a specific conformance issue? I'd be happy to discuss the details and suggest the best approach for implementation. Looking forward to hearing from you.

@ZohaibRoy

⭐⭐⭐⭐⭐ Experienced PEPPOL/E-Invoicing Specialist for Your Project ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for a PEPPOL/E-Invoicing Specialist. You need not look any further; Zohaib is here to help you! My team has successfully completed over 50 projects related to e-invoicing. I will efficiently configure the PEPPOL Access Point, implement the necessary document mapping, and ensure a smooth testing process for the OTA sandbox pass. ➡️ Why Me? I can easily manage your e-invoicing project as I have 5 years of experience in PEPPOL Access Point integration, AS4 messaging, and UBL document mapping. My expertise includes working with Schematron validation and PKI management. I also have a strong grip on open-source stacks like Oxalis and commercial solutions, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ PEPPOL Access Point Integration ✅ AS4 Messaging ✅ UBL Document Mapping ✅ EN 16931 Compliance ✅ Schematron Validation ✅ PKI Management ✅ Service Metadata Publisher ✅ Centralized SMP Experience ✅ E-Invoicing Standards ✅ Sandbox Testing ✅ Iterative Conformance Fixes ✅ Open-source Stacks (Oxalis/Phase4) Waiting for your response! Best Regards, Zohaib

@Guptapuru304

I offer a comprehensive understanding of the e-invoicing landscape. My expertise extends to hands-on experience with AS4/eDelivery messaging, Schematron validation, UBL mapping against PINT profiles and managing certificates/PKI. With national tax authorities increasingly moving toward centralized SMPs, my familiarity in this area will be invaluable for a smooth transition to Oman's centralized SMP model. As an AI-first solutions provider with a strong background in automation and web development, I bring a unique blend of skills that align perfectly with the demands of your project. I have a proven track record of delivering customer-centric outcomes, underpinned by AI to enhance adaptability and automation. My focus on uncompromised quality and value-driven pricing ensures you get robust, scalable solutions without breaking the bank. With me on board for this project, you can expect transparent collaboration characterized by trust-building through clarity, ownership, and iterative processes. My immediate availability allows us to kickstart the engagement promptly and maintain pace with your timeline towards the mid-July sandbox pass. Over my 8+ years working with 200+ clients worldwide such as yourself, I've consistently demonstrated my ability to tackle multifaceted technology projects head-on and surpass expectations. In closing, let's build something intelligent; let's build Fawtara Platform together.

@Herculesz

Hi, this looks less like a simple PHP task and more like a compliance-sensitive integration problem where invoice structure, validation, and handoff behavior need to be explicit before implementation. The real engineering risk is not XML generation itself, but getting canonical invoice data, validation rules, and downstream status handling aligned so the system stays correct under production edge cases. I’ve worked on production integrations where the hard part was defining the contract between business workflows and the external platform, then making the implementation maintainable inside an existing codebase. That applies here more than raw feature coding. The closest matches from my past work are Custom Feature Development & Integration and HubSpot CRM Implementation & Interactive Senior Living Website, both of which involved stepping into live systems, mapping requirements carefully, and tightening integration behavior across application boundaries. I usually structure systems like this by separating invoice data normalization, compliance validation, transport/submission, and status reconciliation. That keeps rule changes isolated and makes failures traceable instead of buried in one PHP flow. For long-term production use, I’d want clear auditability around payload generation, validation outcomes, and acknowledgment states. Thanks, Hercules

@technologybeach

As an experienced Full Stack Developer and Software Engineer, I've built robust and scalable digital systems across various industries for many years. Notably, my skills in API integration are unparalleled as demonstrated by my familiarity with important interfaces like AS4 / eDelivery, SMP/SML lookup, UBL, EN 16931, and multiple PINT profiles. With a strong grasp of open-source platforms such as Oxalis / Phase4 and commercial Access Point integration, I can confidently configure or integrate a PEPPOL Access Point and AS4 (eDelivery) messaging endpoint for your Fawtara platform. One area in which I thrive is handling complex schemas such as Schematron validation and PKI. Moreover, my proficiency spans across both frontend (Vue.js, Angular) and backend (PHP-Laravel, Java-Spring Boot) technologies; this allows me to provide an end-to-end digital solution for your e-invoicing platform. Given my track record in navigating different access point certifications and operating them on live networks, I bring hands-on experience you can rely on for a successful project execution.

@vladang

I’m interested because this sounds less like building an invoicing platform and more like getting the interoperability layer through a very specific compliance gate. The first thing I’d do is verify the AP approach (Oxalis, Phase4, or commercial) and walk the full OTA sandbox transaction flow end-to-end before touching mappings. From there, I’d focus on SMP integration, AS4 message exchange, certificate handling, and then tighten UBL 2.1 / EN 16931 to PINT-OM transformations with Schematron validation built into the workflow so failures are caught before submission. In similar compliance-heavy integrations, the biggest delays usually come from edge-case validation errors, certificate trust chains, and metadata discovery mismatches, so I prefer validating those early rather than during final conformance testing. I’d also add automated regression validation around PINT-OM rules to avoid reintroducing failures during fixes. To answer your questions honestly: I have not personally certified or operated a PEPPOL Access Point on a live network, so I wouldn’t want to misrepresent that experience. If you're open to someone leading the implementation side while collaborating with an AP-certified specialist where needed, I can start immediately.

@skalogir

Hi there, I understand you need a PEPPOL interoperability specialist to configure the Access Point and AS4 layer, implement SMP/SML integration, map UBL 2.1 and EN 16931 to PINT-OM requirements, manage PKI certificates, and drive OTA Fawtara sandbox conformance through to a successful mid-July certification pass. I have experience working with e-invoicing ecosystems, AS4 messaging, UBL/XML processing, Schematron validation, certificate management, interoperability platforms, and enterprise integration projects requiring standards compliance, testing, and production-readiness. I would establish the PEPPOL connectivity layer, implement validation and routing workflows, automate conformance testing, document certification evidence, support sandbox iterations, and prepare the platform for stable OTA-compliant production deployment. Q1: Which Access Point stack are you planning to use initially—Oxalis, Phase4, or a commercial provider integration? Q2: Has any part of the PINT-OM mapping, Schematron validation, or OTA sandbox onboarding already been completed? Q3: Will the scoping task focus on architecture review, Access Point setup, or end-to-end OTA conformance readiness assessment? Best regards, Stratos

@marjanahmed13

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.

@ahmedaaalnaasan

مرحباً، نحن فريق متخصص في حلول التكامل المالي والفوترة الإلكترونية بخبرة تتجاوز 10 سنوات في بناء أنظمة متوافقة مع معايير PEPPOL وUBL وواجهات AS4، ولدينا خبرة في تصميم طبقات التكامل الخاصة بمنصات الفوترة الإلكترونية الوطنية ومتطلبات الامتثال والتوافق الفني. يمكننا قيادة مرحلة التكامل الخاصة بمنصة Fawtara العمانية، بدءاً من إعداد أو دمج Access Point، وتنفيذ بروتوكولات AS4 وعمليات SMP/SML Lookup، وصولاً إلى دعم خرائط UBL 2.1 وملفات PINT الوطنية، وإجراء اختبارات Schematron وإدارة الشهادات الرقمية وعمليات PKI. نحرص على اتباع أفضل الممارسات المعتمدة لضمان اجتياز اختبارات OTA Sandbox في الوقت المحدد، مع تقديم الدعم الفني المستمر، ومعالجة ملاحظات التوافق حتى الوصول إلى اجتياز كامل وجاهزية الإطلاق الرسمي. نجيد العربية والإنجليزية، ونعمل وفق منهجية واضحة تشمل التوثيق، الاختبارات، وتسليم حلول قابلة للتوسع والصيانة مستقبلاً. يسعدنا البدء بمهمة التقييم الأولية ومناقشة المتطلبات الفنية بشكل تفصيلي.

@rbtech1984

Hi There!!! ★★★★ ( PEPPOL / PINT-OM e-Invoicing Access Point integration & OTA compliance delivery for Fawtara platform ) ★★★★ Project understanding: You need an experienced PEPPOL specialist to build and manage the interoperability layer for Oman’s Fawtara system, including Access Point setup, AS4 messaging, SMP/SML, UBL 2.1 mapping, PINT-OM compliance, PKI handling, and OTA sandbox certification pass by mid-July 2026. ⚜ PEPPOL Access Point setup with AS4 / eDelivery messaging integration ⚜ SMP/SML configuration aligned with centralized Oman tax authority model ⚜ UBL 2.1 & EN 16931 + PINT-OM invoice structure implementation ⚜ Schematron validation rules for compliance testing & error handling ⚜ PKI / certificate lifecycle management for secure invoice exchange ⚜ OTA sandbox testing, debugging & conformance certification support ⚜ OpenPeppol (Oxalis / Phase4) integration & interoperability setup I have experience working with enterprise-grade integration systems, API-driven financial workflows, XML-based standards and secure document exchange architectures. I focus on compliance accuracy, validation logic and stable production-ready interoperability layers. My approach would be structured: first architecture review, then AP + SMP setup, followed by UBL/PINT mapping, validation testing and final OTA certification support. Let’s connect to discuss your current stack and scoping task. Warm Regards, Farhin B.

@AdhamSoft

نقوم ببرمجه مواقع الانترنت وتطبيقات الموبايل نقوم بعمل فيديوهات متحركة وتصميم الشعارات وعبر هذه الخبرات، لدينا المعرفة والقدرة على فهم أنظمة الشبكات المعقدة مثل PEPPOL التي يتطلبها مشروعك. لقد حصلت على شهادات تحقيق وتشغيل نقاط PEPPOL في الشبكات المختلفة. نحن نعمل بفرسانية عالية لضمان اجتياز اختبارات OTA sandbox وحصول منصتك على موافقة نظام الضرائب المحلي. سنستخدم خبرتنا بنشاس أو أولاز (Oxalis / Phase4) و/أو تكامل نقاط الوصول التجارية لجعل منصة Fawtara آمنة وفعالة."

@kishanbwts

I have operated certified PEPPOL Access Points on the OpenPeppol network since 2021, managing live e-invoicing flows with full AS4/eDelivery messaging. The five-corner model connects buyer and seller systems through Access Points that communicate via the SMP, which functions as a directory for service endpoints, ensuring correct routing. National PINT profiles like Oman’s add country-specific business rules and validation layers on top of the EN 16931 core invoice syntax. This means adapting UBL 2.1 document mapping and adding Schematron checks to meet local standards. I’ve previously integrated centralized SMP lookups for tax authorities in Europe, addressing their SMP-to-SML registry structures. For your platform, I suggest starting by confirming your Access Point’s AS4 endpoint integration with the Oman SMP and validating the PINT-OM Schematron on sample UBL documents early. Also, are you using Oxalis or Phase4 as the base for your Access Point? That choice affects certificate management and testing workflows. I can lead your interoperability layer through iterative sandbox testing and deliver a clean conformance pass well before the mid-July deadline. Ready to begin your scoping task immediately.

@topcreator100

Hello I’m excited about the PEPPOL E Invoicing project and confident I can drive the interoperability layer to OTA sandbox success. I bring solid hands on experience with PEPPOL Access Point deployments and AS4/eDelivery, plus practical work mapping UBL EN 16931 and applying Schematron validation. On the technical side, I will align the OpenPeppol Open Source stack (Oxalis/Phase4) or a proven AP with the national PINT profile while managing certificates and PKI for OTA conformance. For engagement, I can start immediately and scope a small paid task, aiming for mid July sandbox pass, while leveraging Salesforce App Development to automate invoicing workflows, using PHP for the integration logic, and embedding Tax Compliance controls as needed. Thanks, Freelancer

@toriquldev123

Hello There! Hope you are doing fine. 1. Operated certified AP on OpenPEPPOL for 2+ years. 2. Five-corner adds tax authority as fifth actor; SMP is the lookup service. 3. PINT adds country‑specific fields, validation, QR codes. 4. Yes, worked with centralised SMP. I can configure Access Point, SMP, UBL/PINT‑OM mapping, Schematron, and lead sandbox testing. Ready for scoping task. Let’s start. Best Regards, Md. Toriqul Islam

@shadabkhan92

With extensive experience in building production infrastructure, I have the skills and proficiencies you need to ensure a successful delivery for Fawtara's e-invoicing platform. I'm no stranger to PEPPOL, having certified and operated Access Points on several live networks. To dive deeper, the five-corner model consisted of buyers, suppliers, access points, and service metadata publishers. The SMP acts as a middleman where it's responsible for publishing and sharing service metadata. I understand the importance of adhering to international as well as specific national profiles like EN 16931 and PINT-OM. Your project requires a meticulous approach when it comes to handling UBL 2.1 document mapping and Schematron validation; something I specialize in executing without any hitches. Additionally, my proficiency across open-source stacks (like Oxalis/Phase4) or commercial Access Point integration will bring adaptability. Engaging me would mean leveraging not just my strong understanding of the PEPPOL framework but also my ability to seamlessly integrate AI into existing workflows - which aligns perfectly with your project's needs. Looking forward to working together to overcome all hurdles prior to OTA sandbox testing to ensure a smooth go-live come July 25th, 2026.

@Softeria

With the Fawtara platform, my years of experience as a PEPPOL/E-Invoicing Specialist can be put to optimal use. Having certified and operated Access Point on several PEPPOL networks, I am highly proficient in AS4/eDelivery, SMP/SML lookup, UBL, EN 16931 along with various national PINT profiles. The insights that I possess regarding Schematron validation and certificate handling greatly enhances project outcomes while managing certificates / PKI and preparing OpenPeppol Access Point certification evidence. My expertise also extends to managing a centralized SMP— an asset of late given most tax authorities function this way. My past projects have honed my skills effectively on executing Open-source stacks (Oxalis / Phase4) as well as commercial Access Point integration. My rich project history is complemented by 20+ Research Publications and 600+ Completed Projects explicit to the topic at hand. By leveraging my end-to-end AI system development skills and aligning them with my solid grasp of the Fawtara platform's architectural elements, I believe we can drive your project to fruition precisely according to your vision. Choose me for an added layer of versatility due to my comprehensive skill set and an ability to deliver results through on-time-paced schedules. Let's get started!