1 answer published. Last candidate submission on Apr 8 2026, 10:13am PDT. Interview question asked to Production Engineers, Production Engineering Managers, Engineering Managers and other roles interviewing at Bolt, Electronic Arts, Zulily and other companies. Original question asked: Design a recommendation system for an e-commerce website.. Question last reported by a candidate interviewing at Citrix for a Technical Program Manager interview on Jul 1 2026, 1:10am PDT.