›Architected and scaled shipment and return services using Domain-Driven Design and hexagonal architecture, supporting multi-country, multi-colli operations across DE, ES, IT, NL, and PT with a focus on high availability and operational resilience.
›Built a standardized carrier integration adapter pattern on top of asynchronous queues with retry, failover, and graceful degradation; onboarded 10+ third-party providers across European markets and reduced per-carrier onboarding time by 30%.
›Designed and deployed a shipment & return label service handling 50,000+ parcels per day, cutting end-to-end processing time by 20% through queue-backed workers and targeted profiling.
›Built comprehensive observability with Grafana, Prometheus, and Stackdriver for real-time tracking; rate-of-change alerting reduced incident detection time on tracking failures by 15%.
›Initiative lead for turning parcel tracking into an internal SaaS — designed an SDK so any team can plug in, plus a microservice backbone where carrier-specific resolvers run behind queues and workers, providing a single source of truth for parcel state.
›Maintained production services on Kubernetes/Docker with automated CI/CD pipelines (GitLab CI/CD, GitHub Actions), structured logging, and quality gates enforced on every change.
›Mentored junior engineers on backend best practices, code quality, and architectural patterns; collaborated with Product, Operations, and Customer Support in agile Scrum/Kanban delivery.