📚 Case Studies

Explore some of the most impactful projects I've worked on throughout my QA career

💸

Pix – A New Era of Payments

Brazil • 2020

Key QA role in the launch of Pix, Brazil's groundbreaking instant payment system that transformed the financial landscape at the largest bank in Latin America.

🎯 Challenges

  • Highly critical, real-time system affecting millions of users
  • Tight deadlines and regulatory requirements from the Central Bank
  • Complex integrations with existing banking infrastructure

💡 My Contributions

  • Conducted the test strategy for mobile core payment modules
  • Implemented automated regression testing for Back-end using Java with Rest Assured
  • Acted as focal point between multiple squads, ensuring communication between engineers and stakeholders
  • Coordinated with cross-functional teams to ensure compliance and stability

🏆 Impact & Recognition

🚀
Market Impact

Pix became one of the fastest-adopted financial technologies in Brazilian history

🏅
PRAD Recognition Award

Prestigious internal recognition for key contributors

🧭

Epos Now – Building a Culture of Quality

UK • 2022-Present

Joined as Senior QA Engineer and promoted to Head of QA at a leading POS systems provider, scaling to over $150M annual revenue.

⚡ Challenges

  • Legacy code with only E2E tests and 800+ test case regression suite
  • Manual testing bottlenecks impacting release cycles
  • 1 QA for every 8 developers ratio
  • Fragmented team with unclear quality ownership

🔧 My Contributions

  • Created and rolled out a QA Handbook to standardize practices
  • Introduced test automation with Playwright across legacy migration projects
  • Developed strategy based on the Test Pyramid methodology
  • Championed shift-left testing through data-driven workshops
  • Mentored QAs and initiated Path to Engineering program
  • Integrated tests into CI/CD pipelines using GitLab CI and Jenkins

📊 Measurable Impact

40% Reduction in Production Bugs
2 Fully Automated Projects
100% Quality Culture Adoption

✅ Improved deployment frequency and confidence

✅ Fostered strong quality culture with cross-team accountability

✅ Reduced project bottlenecks during testing phase

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