Kader Diarra

Architected and led the greenfield build of a multi-tenant event management SaaS serving 5–10 enterprise clients; migrated legacy Laravel/JavaScript codebase to a modern TypeScript stack (React, NestJS, PostgreSQL, Docker); improved platform performance by 95%, reduced page load times to milliseconds, and achieved sub-second API response times through strict typing, database indexing, and query optimization. Designed infrastructure-as-code using Terraform across AWS and built end-to-end CI/CD with automated linting, E2E tests, and deployment; led a team of 4 junior developers.

Architected and led a greenfield rebuild of a Kangaroo Event Management SaaS serving 5-10 enterprise clients (LNR, EPCR, Stellium), migrating legacy Laravel/Javascript codebase to modern TypeScript stack (React, NestJS, PostgreSQL, Docker). Improved platform performance by 95%+, reducing page load times from 10-20s to milliseconds and achieving sub-second API responses through TypeScript strict typing, DB indexing, and query optimization. Designed multi-tenant architecture with isolated databases per client, and implemented infrastructure-as-code using Terraform across AWS. Built end-to-end CI/CD with automated linting, E2E testing and deployment to AWS. Led a team of 4 junior developers, established coding standards, code reviews, and mentoring on product-driven thinking, edge-case handling, and performance optimization.

Resolved 200+ critical bugs (including Stripe webhook processing issues affecting payments), redesigned event quota allocation from package-based to component-based architecture for granular config, and implemented GDPR features (data export, right to erasure, consent management, data anonymization) using Laravel and PostgreSQL to ensure EU compliance for enterprise clients.