You will get ZATCA-Compliant E-Invoicing Integration in Java & Spring Boot
Project details
🇸🇦 Become 100% ZATCA-Compliant — Without the Integration Headache
If you're building a SaaS or business in Saudi Arabia, ZATCA e-invoicing compliance is mandatory and technically complex:
• Strict XML invoice structure (UBL 2.1)
• TLV-encoded QR codes
• X.509 digital signatures
• Real-time submission to ZATCA Fatoora portal
• Hash chain validation for invoice integrity
• Phase 1 (Generation) + Phase 2 (Integration)
I've built complete ZATCA-compliant E-Invoicing systems at Algoras, achieving 100% compliance across thousands of transactions for multiple businesses.
—— WHAT YOU GET ——
✅ Production-ready Java/Spring Boot integration
✅ Compliant XML invoice generation
✅ TLV QR code implementation
✅ Digital signing with cryptographic certificates
✅ Real-time ZATCA API submission
✅ Hash chain implementation
✅ Error handling + retry logic
✅ Clean, documented, maintainable code
✅ Postman collection for testing
—— PERFECT FOR ——
• SaaS platforms serving KSA customers
• ERP/accounting systems needing compliance
• E-commerce platforms in Saudi Arabia
• Enterprise systems requiring regulatory readiness
If you're building a SaaS or business in Saudi Arabia, ZATCA e-invoicing compliance is mandatory and technically complex:
• Strict XML invoice structure (UBL 2.1)
• TLV-encoded QR codes
• X.509 digital signatures
• Real-time submission to ZATCA Fatoora portal
• Hash chain validation for invoice integrity
• Phase 1 (Generation) + Phase 2 (Integration)
I've built complete ZATCA-compliant E-Invoicing systems at Algoras, achieving 100% compliance across thousands of transactions for multiple businesses.
—— WHAT YOU GET ——
✅ Production-ready Java/Spring Boot integration
✅ Compliant XML invoice generation
✅ TLV QR code implementation
✅ Digital signing with cryptographic certificates
✅ Real-time ZATCA API submission
✅ Hash chain implementation
✅ Error handling + retry logic
✅ Clean, documented, maintainable code
✅ Postman collection for testing
—— PERFECT FOR ——
• SaaS platforms serving KSA customers
• ERP/accounting systems needing compliance
• E-commerce platforms in Saudi Arabia
• Enterprise systems requiring regulatory readiness
Programming Languages
Python, Java, KotlinCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$1,500
|
Standard
$2,500
|
Advanced
$4,500
|
|---|---|---|---|
| Delivery Time | 10 days | 14 days | 21 days |
Number of Revisions | 2 | 3 | Unlimited |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
About Muhammad
Senior Java & Spring Boot Developer | FinTech, E-Invoicing and ERPs
Lahore, Pakistan - 9:31 am local time
I help FinTech startups, banks, and ERP companies ship secure, scalable backend
systems — without the typical delays, bugs, or compliance headaches.
With 6+ years of hands-on experience, I've built production systems trusted by
millions of users at some of the most demanding companies in the world:
🏦 BILL (US FinTech) — Building APAR onboarding flows in Java 17 + Micronaut
🏦 United Overseas Bank (UOB) — Personal Internet Banking serving 8M+ customers
🏦 Algoras — ZATCA-compliant E-Invoicing platform (100% regulatory compliance)
🏦 i2c Inc. — Multithreaded financial computation engines for payment institutions
—— What I Build For Clients ——
✅ Scalable backend systems with Java 8/11/17, Spring Boot, Micronaut
✅ Microservices & RESTful APIs (clean, documented, production-ready)
✅ FinTech & banking integrations (payments, KYC, secure transactions)
✅ E-Invoicing & compliance systems (ZATCA, Peppol, regulatory-ready)
✅ ERP module development (Sales, Purchase, Invoicing automation)
✅ High-performance multithreaded services (30%+ efficiency gains)
✅ Event-driven architecture with Kafka, JMS, and async processing
—— My Tech Stack ——
• Languages: Java 8 / 11 / 17, Kotlin
• Frameworks: Spring Boot, Spring MVC, Micronaut, Hibernate, JPA
• Databases: PostgreSQL, MariaDB, DynamoDB, Elasticsearch, Informix
• Cloud & DevOps: AWS, Docker, Kubernetes, Jenkins, CI/CD
• Messaging: Apache Kafka, JMS
• Testing: JUnit, Mockito, Integration Testing
—— Results I've Delivered ——
📈 100% ZATCA regulatory compliance for E-Invoicing across multiple businesses
📈 25% operational efficiency boost through ERP automation
📈 30% reduction in manual processing via multithreaded financial calculators
📈 Backend features for a banking platform serving 8M+ retail customers
📈 End-to-end Supplier Hub with RBAC, validation engine, and bulk import
—— Why Clients Work With Me ——
✔ I treat your codebase like my own — quality, ownership, accountability
✔ Clear daily communication, no surprises, no missed deadlines
✔ Fluent English, comfortable with both async and sync collaboration
✔ Proven track record in regulated environments (banking, compliance, FinTech)
✔ I write clean, maintainable code that your team can build on for years
—— Availability ——
🟢 Currently accepting 1-2 new clients
🟢 Available 30+ hours/week
🟢 Flexible across US, EU, and APAC time zones
If you're building something serious in FinTech, banking, or e-invoicing —
or you need a senior Java engineer who ships production-grade systems —
let's talk. Send me a message with your project details and I'll respond within hours.
Steps for completing your project
After purchasing the project, send requirements so Muhammad can start the project.
Delivery time starts when Muhammad receives requirements from you.
Muhammad works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Discovery & Technical Scope
We align on your tech stack, ERP system, invoice volume, and ZATCA phase requirements. I confirm certificate readiness, integration points, and deliverables, then share a detailed technical plan for your approval.
ZATCA Environment & Certificate Setup
I guide you through ZATCA Fatoora portal registration, CSR generation, and X.509 certificate setup. Your sandbox and production credentials are configured securely so all subsequent integration steps run without compliance risks.