• Define and maintain commerce platform system architecture including product data models, module and capability selection, integration patterns, and client-specific adaptations • Lead solution design for commercetools implementations and other modern commerce platforms (e.g., Shopify Plus, BigCommerce, Salesforce Commerce Cloud, Adobe Commerce) • Develop architecture blueprints, technical roadmaps, and documentation to support scalable and modular solution delivery • Evaluate and advise clients on commerce technology platforms, participating in platform selection processes and providing strategic recommendations aligned to business goals • Guide clients on composable, MACH, and headless strategies across the modern commerce landscape • Work alongside client technical teams and Zaelab development teams to solve emerging platform or integration challenges • Ensure solutions are scalable, secure, resilient, and aligned with best practices • Act as a technical escalation point for architecture, integration, and performance-related issues • Define solution architecture concepts and technical approaches during pre-sales efforts • Collaborate with sales teams, delivery leads, and client stakeholders to shape proposals and advise clients on platform, integration, and technology strategies • Conduct technical assessments, discovery workshops, and scoping engagements • Assess existing or legacy commerce platforms to identify technical debt, performance limitations, refactoring opportunities, and modernization pathways • Guide clients through phased modernization or replatforming strategies toward headless, API-driven architectures • Partner with Project Managers and delivery leads to identify project technical risks, evaluate alternative solutions, and implement mitigation strategies • Ensure architectural decisions align with timelines, scope, and delivery constraints • Effectively communicate architectural designs, technical constraints, design rationale, and implementation roadmaps to client teams and internal delivery teams • Serve as a trusted advisor, aligning technical decisions with business goals and helping stakeholders make informed tradeoffs