Catalin Stan

Designed and maintained DMARC email authentication systems protecting 10,000+ enterprise customers, processing 50,000+ reports daily across a high-volume Elasticsearch reporting pipeline Owned Kubernetes infrastructure (EKS & Kops) across multiple clusters — Helm chart authoring, rollout management, and on-call incident response for zero-downtime deployments Resolved a critical message broker outage by migrating from self-managed RabbitMQ to Amazon MQ under live conditions, including full data migration to restore service with no message loss Resolved an Elasticsearch cluster performance incident by coordinating an emergency upgrade, redesigning index distribution across nodes, and leading a codebase refactor to improve data partitioning and search performance

PHP (Laravel & Symfony)

• · Java

◦ · Docker

◦ · Kubernetes (EKS, Kops)

◦ · AWS (Lambda, Amazon MQ, RDS, Elasticsearch)

◦ · Terraform

• · Jenkins

Developed core features and took part on discussing the architecture of the application.

Led a 3-person WMS team within a 10-person engineering organisation — defining requirements, owning architecture, and delivering features end-to-end Collaborated directly with department heads to identify operational bottlenecks; proposed and delivered solutions that reduced warehouse workload by 10% and improved operational accuracy by 20% Designed and built the warehouse management system from the ground up — high-level architecture, data models, algorithms, and cross-device frontend interfaces Drove agile delivery across sprints, resolved the most complex production issues, and mentored team members

• ·

◦ · PHP

◦ · JavaScript

◦ · MySQL

◦ · Linux