• Acted as project and technical lead, coordinating engineering activities across cross-functional teams including Product, Architecture, and Engineering.

• Defined and delegated technical tasks, ensuring clarity, alignment, and execution across team members.

• Led system-wide refactoring initiatives, proactively identifying technical debt and implementing scalable, long-term solutions.

• Made high-impact technical decisions by balancing trade-offs between complexity, risk, and business value.

• Recognized architectural patterns and recurring issues, distilling them into scalable and reusable engineering solutions.

• Collaborated with management to define engineering standards, improve operational efficiency, and drive platform evolution.

• Mentored four engineers, fostering best practices in design, implementation, and system thinking.

• Represented PayPal as a trusted technical advisor in the area of network tokenization, consulting leadership and external partners on platform direction and risk.

• Designed and deployed the Issuance Database Resiliency Middleware, reducing system downtime and improving operational efficiency, enabling continued token provisioning even during DB failures.

• Spearheaded PayPal Tap to Pay for NFC, enhancing contactless payment capabilities across Europe.

• Improved fraud detection algorithms by integrating account name verification with network token validation.

• Implemented Apple Pay risk-based provisioning, enhancing fraud detection and ensuring secure transactions.

• Led multi-team collaboration on Token for Token Digitization, improving transaction security across digital wallets.

• Developed a latency bridge to optimize token processing, reducing response time and increasing payment success rates.

• Optimized PayPal's transaction processing system, identifying and resolving CPU utilization issues, significantly improving system efficiency.

• Redesigned GSI synchronization, reducing query execution time by 85% and eliminating performance degradation risks.

• Developed and maintained high-throughput issuance transaction processing systems, ensuring low-latency financial transactions.

• Contributed to on-call rotation and live issue resolution, ensuring 24/7 availability of critical payment services.

• Developed and maintained internal customer sales & support applications.

• Led software architecture discussions and code reviews to maintain high development standards.

• Architected and optimized high-frequency trading systems, improving execution speeds for Latin American markets.

• Coordinated with local exchanges to comply with market regulations and optimize trading strategies.

• At JP Morgan I worked as consultant for developing SOA workable technical infrastructure for back office daily reconciliation global tasks.

• At National Health Care System mainly I performed architecture onsite representation for multicultural team work. Design and implementation of the national medical record for public health care system. Project management to ensure deliveries across the teams.