Luis

Senior Backend Developer & Systems Engineer

Maintained and evolved the core engineering calculation engines hosted on Tomcat 9, executing structural algorithms for tank design (seismic, wind, snow loads, structural components).. Modernized the legacy Java Spring inter-server protocol to accept HTTP/REST requests, enabling external applications and D365/Experlogix to trigger automated structural calculations via XML/JSON payloads.. Managed and optimized a massive SQL Server database (thousands of active quotes, orders, and projects) powering a Java 8 / Maven desktop order-creation system, ensuring high-availability pricing data and customer records.. Spearheaded the end-to-end refactoring and migration of internal e-commerce/sales platforms (DryDesign Web) from .NET Core 2.0 to .NET 8.. Integrated HashiCorp Vault for centralized secret management; redesigned authorization profiles (Admin, Sales, Marketing) to fix security vulnerabilities and automated transactional email alerts for promotional discount flows.. Co-led technical updates and architectural alignment for the Asian division’s parallel .NET platform, enforcing unified security and profile segregation across international teams.. Engineered custom C# integration layers connecting calculation engines directly with Microsoft Dynamics 365 (D365) and Experlogix.. Extended backend calculation services to dynamically query SQL Server inventory, calculate material safety hazards (explosion panel requirements), generate pricing sheets, and push encrypted data packages directly to D365.. Debugged and optimized custom PHP plugins connecting web quote forms to Salesforce CRM, ensuring 100% data delivery accuracy and reliable email notifications.. Implemented CORS security policies and refactored web assets, raising Google PageSpeed scores from 35 to 95 and drastically reducing page load latency.