Amazon
Mid
Full-stack SDE on Amazon Ads' Reach Extension team — React/TypeScript front end, Kotlin/AWS back end
Join Amazon Ads' Reach Extension team in Edinburgh building advertising products used by millions of Amazon customers. This is a full-stack role spanning React/TypeScript client code, Kotlin and Elasticsearch backend services on AWS, and end-to-end ownership from design through operational support at 24x7 global scale. A good fit for engineers who want both front-end and distributed-systems depth plus direct exposure to advertiser-facing product decisions.
Step into this interview
Free · a live voice mock calibrated to this exact role
Likely format
Likely Amazon-style loop with Leadership Principles behavioral questions alongside coding/system design, per Amazon's standard SDE interview process.
What this interview tests
- Full-stack ownership (React/TypeScript + Kotlin/AWS backend)
- Object-oriented design and architecture decisions at scale
- Reliability and correctness at 24x7 global scale
- Elasticsearch-backed services
- Cross-functional collaboration (UX, PM, partner teams)
- Iterating on testing practices and architecture
Common question themes
Design a feature end-to-end spanning a React client and a Kotlin backend service
Tell me about an architecture or design pattern decision you drove on a past project
How would you model and query advertiser/campaign data in Elasticsearch at scale
Describe operating a system that must be reliable and accurate 24x7
Tell me about a time you worked with UX/PM to ship a customer-facing feature
How do you approach improving testing practices or revising architecture as requirements evolve
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