Software Engineer II at LibertyPay (SaaS), an NCR Atleos Corp

• Maintained transaction processing system achieving 30% performance improvement across US-to-Brazil remittance • Engineered end-to-end integration with major Brazilian bank/fintech partner, achieving full ownership of integration responsible for 40% of daily payment volume and enabling 30% increase in transaction speed • Built transaction systems in Python and TypeScript processing hundreds of daily transactions across USD (US banks via Wire), BTC (US and Brazil-based exchanges), and BRL (Brazilian banks) • Designed Grafana and Mode Analytics dashboards for real-time transaction monitoring and cash flow visibility across multiple currencies and payment corridors • Developed financial control systems for ACH, Wire transfers, and PIX payments using Python and TypeScript • Integrated with multiple Brazilian banks and fintech partners, including web scraping solutions for institutions without available APIs to automate balance report downloads and transaction data extraction • Built Puppeteer-based automation infrastructure reducing manual reporting tasks by 2-3 hours per week through scheduled automated jobs and balance report generation • Translated 50+ customer pain points into 50+ technical specifications and GitLab tickets while acting as bridge between Support, Compliance, Sales, and Engineering teams • Engineered real-time alerting systems for critical liquidity issues, reducing incident resolution time from days to hours through rapid problem diagnosis and ticket prioritization • Improved frontend UI/UX for remittance creation workflow using React, Angular, and Pug templates, optimizing transaction completion flow through frontend refinements and improved guidelines • Managed GitLab CI/CD pipelines, code reviews, and issue tracking while collaborating with Compliance, Sales, Engi neering, and Customer Support teams