›Düsseldorf, Germany · Backend platform engineering for delivery management at multi-country scale. Initiative Lead (Parcel Tracking Internal SaaS; Internal AI Agents & AI Ambassador) and Co-Lead (WMS Migration to Odoo).
›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; the resulting label service handles 50,000+ parcels per day with end-to-end processing time cut by 20% through queue-backed workers and targeted profiling.
›Built a standardized carrier integration adapter pattern in PHP/Symfony over RabbitMQ asynchronous queues with retry, failover, and graceful degradation; onboarded 10+ third-party providers across European markets and reduced per-carrier onboarding time by 30%; the same modular pattern translates directly to payment providers, methods, and currencies.
›Built comprehensive observability with Grafana, Prometheus, and Stackdriver for real-time tracking of label printing, return generation, and parcel tracking; rate-of-change alerting reduced incident detection time on tracking failures by 15%.
›Led the initiative to turn parcel tracking into an internal SaaS any team at METRO can plug into, designing the SDK plus a microservice backbone where carrier-specific resolvers run behind queues and workers, establishing a single source of truth for parcel state across customer-facing apps and ops tools.
›Designed and shipped a production AI support agent on Google ADK + Vertex AI, integrated with the Model Context Protocol (MCP) Toolbox over our shipment, carrier, and tracking systems, deployed into the delivery-management Slack channel, answering real operational questions daily with grounded, source-cited responses.
›Solved the hard parts around the model — tool scoping, context shaping, source-citation enforcement, and an internal eval loop to catch confidently-wrong answers before production; acted as internal AI ambassador, running workshops and architecture walkthroughs on Google ADK and MCP for adjacent teams.
›Co-led the migration of a core METRO warehouse from MatFlow (legacy WMS) to a new in-house Odoo-based system handling ~10,000 daily stock adjustments and shipments with no acceptable downtime window; designed a SafeMigration base-class pattern for Doctrine Migrations with a preflight CLI, built the stock-adjustment sync layer for the dual-running window, and co-authored the migration plan — landed without operational interruption.
›Stack: PHP 8.5 · Symfony 7 · Doctrine ORM · Python · Google ADK · Vertex AI · MCP Toolbox · MySQL · PostgreSQL · ClickHouse · RabbitMQ · Redis · Kubernetes (GKE) · Docker · GitLab CI/CD · GitHub Actions · Grafana · Prometheus · Stackdriver