Staff Backend Engineer (all genders) – Remote (Germany, Italy & Spain)

ABOUT US Factor Eleven is the leading drive-to-store revenue platform for brick-and-mortar retailers and CPG brands. Our platform automates the entire lifecycle of digital promotion communication — from media planning and ad creation through to campaign delivery, billing, and reporting. Operating as a high-touch enterprise managed service, humans orchestrate campaign strategy while our platform automates execution, driving tangible store revenue uplift at scale. YOUR MISSION You own the technical direction of the Order Management module—a greenfield system that translates approved Media Plans into legally binding orders. As the technical owner for the backend, you design the architecture for the complete order lifecycle, document generation, contract management, and integrations with internal and external systems such as our planning platform and DocuSign. Working closely with Product and Engineering, you'll translate complex business and legal requirements into scalable, reliable backend systems while shaping the long-term technical direction of the domain. You'll serve as the technical authority for the Order Management domain, partnering closely with Engineering leadership, influencing architectural decisions across the backend platform, and leading through technical expertise, architectural thinking, and strong engineering judgement—not people management. YOUR RESPONSIBILITIES - Order Lifecycle & Workflow Architecture: Design the order state machine (Draft → Internal Review → Pending Signature → Approved/Declined), approval workflows, idempotent transitions, and audit events. - Document Generation & Contract Library: Own the PDF generation pipeline, including templates, reusable fragments, bundles, placeholder resolution, versioning, and scoping across the contract library. - External Integrations: Design and own reliable integrations with internal planning systems and DocuSign, ensuring reliable synchronization through asynchronous processing, retries, reconcil