Design of a decoupled financial engine using Python (FastAPI) and PostgreSQL. Implemented strict concurrency management using row-level locking to prevent race conditions during simultaneous payments. Developed a Waterfall Allocation Algorithm for debt amortization. The system executes collections and reversals as atomic transactions, ensuring balances update completely or roll back entirely in case of failure (Atomicity). Achieved total elimination of accounting inconsistencies, ensuring cash reconciliation with zero tolerance via schema validation (Pydantic) and database constraints. Delivered a modular MVP with comprehensive audit logging, designed to support high transaction volumes and future banking integrations.

Executed a cultural and professional immersion program in Japan, achieving JPT N4 linguistic proficiency level. Designed and completed an intensive 500+ hour upskilling roadmap focused on Python, Cloud Computing, and AI. Successfully transformed professional profile from legacy infrastructure to modern software engineering, effectively bridging the global technology gap and updating core competencies.

Conducted comprehensive security audits of production systems and infrastructure. Led the development of internal security regulations and ensured policy compliance with ISO 27001 standards. Analyzed the integrity, reliability, and availability of information assets, assessing critical threats to ensure service continuity. Expanded the coverage of the Information Security Plan (PISI) from 30% to 100% of national directorates, standardizing asset classification protocols. Reduced risk analysis time by 40% by methodologically integrating MAGERIT and EBIOS risk management frameworks. Implemented a third-party agreement assessment system, increasing anomaly detection by 60% and guaranteeing information assurance.

Administered Oracle and MySQL databases in critical environments (Production/Test), managing Standby Database architecture and backup policies (Level 0) using RMAN to guarantee business continuity. Executed SQL query optimization and index restructuring in coordination with development teams, resolving bottlenecks in the core banking system (ARGOS) and improving response times. Managed Identity and Access Management (IAM) and privileged access auditing. Conducted Capacity Planning for high-demand transactional volumes over 30GB daily during monthly closing cycles. Achieved an 80% reduction in availability incidents by implementing a proactive Archived Log monitoring scheme, mitigating risks of data corruption or service outages due to storage saturation. Successfully executed contingency and restoration drills, reaching 90% compliance with ASFI (Financial Supervisory Authority) risk management regulations.

Led the planning, design, and development of financial applications (e.g., 'PagoAlInstante'), managing the full SDLC (Software Development Life Cycle) from requirements analysis to Quality Assurance (QA) testing and successful production deployment. Comprehensive administration of internal and external communication networks, enforcing strict security access standards and confidentiality for data exchange within the financial group. Standardized 100% of the communications infrastructure under Cisco standards and led the technical design of the Corporate Data Center. Developed and deployed internal systems (HelpDesk, Contract Management) that optimized operational workload and reduced manual errors. Executed a seamless migration of critical servers and databases with zero downtime, ensuring operational integrity for the Investment Funds.

Successfully implemented the HR Intranet and developed accounting reports on the SAP AIO platform.

Administered technological infrastructure, ensuring 98% availability of critical resources.