Amazon
Mid
Own Tier-1 ad-eligibility services for Amazon's self-service advertisers, serving small-and-medium businesses globally
This SDE role on the ad-serving team within Sponsored Products and Brands focuses on the self-service advertising org that serves the 80% of advertisers who are small/medium businesses. You'll design and own Tier-1 services determining ad-serving eligibility, working with EC2, Fargate, Lambda, SQS, ElastiCache, and S3, with explicit expectations around GenAI proficiency in the ad-serving pipeline.
Step into this interview
Free · a live voice mock calibrated to this exact role
Likely format
Amazon SDE loop: online assessment, phone screen, then onsite/virtual loop of behavioral (Leadership Principles) + coding/system design rounds, with a bar raiser
What this interview tests
- Tier-1 ad-eligibility service design at global scale
- AWS primitives: EC2, Fargate, Lambda, SQS, ElastiCache, S3
- State management, GC tuning, and memory optimization for latency
- GenAI-native development workflow
- Full software lifecycle ownership (design through production ops)
Common question themes
Design a service that determines ad eligibility with high availability across 20+ countries
How would you architect a solution using SQS, Lambda, and ElastiCache together for this workload
Tell me about a time you tuned GC or optimized memory for a latency-sensitive service
How have you used GenAI tools natively in a production pipeline, not just for personal productivity
Walk through owning a service end-to-end from design through incident response
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