Leo Nomie

Led architecture and delivery of production microservices and healthcare platforms serving 500K+ users with 2.5M+ daily transactions and 99.9% uptime. Architected and shipped 3 full-stack microservices using Node.js, Express, React, and PostgreSQL with comprehensive monitoring. Optimized DB queries, implemented Redis caching, and designed a cross-platform React component library standardized across 5 Next.js apps. Designed REST and GraphQL APIs with JWT and OAuth 2.0 authentication and zero security incidents. Automated CI/CD with GitHub Actions; built and managed AWS infrastructure (EC2, Lambda, RDS, API Gateway, CloudFront, EKS). Mentored 3 junior engineers and established code review practices and engineering standards.

Led architecture and delivery of production microservices and health care platform services serving 500K+ users and handling 2.5M+ daily transactions with 99.9% uptime. Architected and shipped 3 full-stack microservices using Node.js, Express, React, and PostgreSQL with comprehensive monitoring and observability. Implemented a Redis caching layer that reduced infra costs by $15K annually and supported 3x concurrent users. Built a cross-platform React component library with 40+ reusable components, standardized across 5 Next.js apps, reducing frontend development time by 25%. Designed and deployed REST and GraphQL APIs for internal tools, with JWT and OAuth 2.0 authentication and no security incidents. Automated CI/CD pipelines with GitHub Actions, boosting deployment frequency from 1/week to 3-4/day and reducing deployment failures by 60%. Built AWS infrastructure (EC2, Lambda, RDS, API Gateway, CloudFront, EKS) for high availability and health checks. Mentored 3 junior engineers to mi

Delivered enterprise HIPAA-compliant health care platform serving 50+ providers and 100K+ patients across multiple states. Engineered backend services and frontend features with PHI encryption, audit logging, and granular access controls achieving HIPAA compliance. Passed 2 SOC 2 Type II audits with zero findings, demonstrating commitment to security, availability, and confidentiality. Optimized database queries with execution plan analysis and a smart caching layer reducing query load by 50%, and migrated from a single PostgreSQL instance to read replicas enabling 3x concurrent users and improved performance. Containerized legacy monolith with Docker and Docker Compose; implemented an automated deployment pipeline reducing deployment time from 30 minutes to 5 minutes. Led full development lifecycle for 5+ health-care feature releases, collaborating with product and design teams to validate requirements within regulatory constraints.