Software Engineer 3 (Martech / AdTech) [T500-20145]

About Costco Wholesale

Costco Wholesale is a multi-billion-dollar global retailer with warehouse club operations in eleven countries. They provide a wide selection of quality merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make shopping a pleasurable experience for their members.

About Costco Wholesale India

At Costco Wholesale India, we foster a collaborative space, working to support Costco Wholesale in developing innovative solutions that improve members’ experiences and make employees’ jobs easier. Our employees play a key role in driving and delivering innovation to establish IT as a core competitive advantage for Costco Wholesale.

Position Title : Software Engineer 3 (Martech / AdTech)

Job Description :

Roles & Responsibilities :

• Design and develop scalable Martech / AdTech solutions across web, mobile, and backend systems
• Build and integrate APIs to support campaign delivery, personalization, and tracking
• Collaborate with product, data, and engineering teams to deliver reliable and performant ad & marketing experiences
• Implement targeting and measurement capabilities using first- and third-party data
• Contribute to the architecture and technical roadmap of the Martech / AdTech stack
• Ensure security, compliance, and data quality across integrations and data flows
• Troubleshoot and resolve issues related to latency, delivery, and data consistency
• Stay current with industry best practices, tools, and platform capabilities (e.g. DSPs, DMPs, CDPs)
• Support experimentation, A / B testing, and audience segmentation infrastructure
• Partner with stakeholders to translate business needs into scalable technical solutions

Technical Skills :

Must Have Skills :