👋 Hi, I'm Ramon Tan Jr

🎯 Senior QA Engineer | 20+ Years Experience
Specializing in End-to-End System Validation, Payments, and Enterprise Systems

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🚀 What I Do

I test how systems behave in real-world conditions — not just UI.

✔ End-to-end workflows (UI → API → backend → data)
✔ Payment & transaction systems
✔ API & integration validation
✔ Data integrity & reconciliation
✔ Production risk detection

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⭐ Featured Projects (Start Here)

🚀 Enterprise Order-to-Cash QA

🔗 https://github.com/Ramonjrtan/enterprise-order-to-cash-qa-portfolio

✔ CRM → Orders → Payments → Accounting → Reconciliation
✔ 84 test cases (Excel execution suite)
✔ Financial + integration validation

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⚙️ IoT / Embedded / Smart Metering System

🔗 https://github.com/Ramonjrtan/smart-metering-qa-portfolio

✔ Device → communication → backend validation
✔ Real-time + distributed systems

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💰 FinTech Digital Wallet

🔗 https://github.com/Ramonjrtan/fintech-wallet-testing-liquidpay

✔ Wallet transaction integrity
✔ Balance validation
✔ Failure / retry scenarios

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💳 POS Transaction Flow (ISO8583)

🔗 https://github.com/Ramonjrtan/pos-transaction-flow-simulation-iso8583-style

✔ Authorization → reversal → settlement
✔ Payment lifecycle validation

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🏦 Core Banking QA (T24)

🔗 https://github.com/Ramonjrtan/T24-QA-Portfolio

✔ Maker-checker workflows
✔ Financial data integrity

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🧠 Event-Driven Platform QA

🔗 https://github.com/Ramonjrtan/event-driven-order-platform-qa

✔ API → events → DB validation
✔ Idempotency and consistency

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🧩 System Integration & POS

• 🔗 https://github.com/Ramonjrtan/mobile-pos-linebuster-qa
• 🔗 https://github.com/Ramonjrtan/pos-system-integration-testing-qa

✔ Device → backend → POS
✔ Real-world transaction workflows

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💳 Payments, Data & Reconciliation

• 🔗 https://github.com/Ramonjrtan/retail-payments-data-qa-portfolio-
• 🔗 https://github.com/Ramonjrtan/qa-casino-platform-testing-portfolio

✔ ETL + reconciliation
✔ Financial reporting validation

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🛒 SaaS / E-commerce

• 🔗 https://github.com/Ramonjrtan/saas-conversion-funnel-qa-portfolio
• 🔗 https://github.com/Ramonjrtan/shopify-ecommerce-qa-testcases

✔ User journey + payment flows
✔ Conversion and checkout validation

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🔌 API & Backend

• 🔗 https://github.com/Ramonjrtan/api-testing-portfolio-restful-booker

✔ REST API validation
✔ Auth, error handling

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🤖 Automation

• 🔗 https://github.com/Ramonjrtan/cypress-saas-e2e-automation-framework
• 🔗 https://github.com/Ramonjrtan/salesforce-playwright-framework

✔ UI automation frameworks
✔ Scalable test architecture

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⚙️ IoT / Embedded / Smart Systems

• 🔗 https://github.com/Ramonjrtan/smart-metering-qa-portfolio
• 🔗 https://github.com/Ramonjrtan/iot-embedded-qa-portfolio
• 🔗 https://github.com/Ramonjrtan/telematics-fleet-management-qa-portfolio

✔ Device → communication → backend validation
✔ Real-time + distributed systems

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🏥 Enterprise Systems

• 🔗 https://github.com/Ramonjrtan/salesforce-manual-test-cases
• 🔗 https://github.com/Ramonjrtan/openmrs-healthcare-qa-portfolio
• 🔗 https://github.com/Ramonjrtan/workday-hris-testing-portfolio

✔ Business workflows + data validation
✔ Enterprise process testing

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🧪 My QA Approach

I focus on:

• End-to-end system behavior
• Data integrity across layers
• Financial and transaction accuracy
• Real-world failure scenarios

👉 I test what actually breaks in production

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📫 Connect

• LinkedIn: https://www.linkedin.com/in/ramon-t-91946710/
• Email: ramonjrtan@gmail.com

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⭐ QA portfolio focused on real-world systems, not just test cases