Data engineer with 5+ years of experience working in the field of online performance marketing and business intelligence. Experience developing data processing/ETL pipelines, setting up custom data analytics systems, defining and implementing data warehousing solutions. I've been busy helping to specify and develop things like a performance-driven recommendation engine for account optimization, an inventory-based ad copy status management tool, an ad copy A/B testing system, an automated account auditing tool, market landscape researches, etc...