The Emerging Marketplaces Experience & Operations (EMXO) Prime, Lifecycle & XCM (PLX) team builds and orchestrates inputs to accelerate customer growth, engagement, and Prime membership across Amazon's ten emerging marketplaces (India, Brazil, Mexico, Australia, Singapore, UAE, Egypt, Saudi Arabia, Turkey, and South Africa). We are a multi-billion dollar business with huge potential to grow in a trillion-dollar market. The Mobile Growth function sits at the heart of our Customer Growth strategy, with EMXO owning worldwide Paid App Marketing (PAM) services and mobile growth capabilities since February 2024.

The Mobile App Growth team accelerates Amazon retail app adoption by partnering with third-party advertising platforms (e.g., META , Google) to articulate to customers why they should download and sign in to the Amazon shopping app. Our messages surface outside Amazon on 100K+ apps worldwide, with a goal of driving mobile app First Time Sign-In (FTSI). The Mobile Growth tech team owns the underlying attribution and data-passing service that enables third-party partners to programmatically optimize campaigns through a closed-loop system, alongside fraud prevention enhancements.

We are seeking a talented SDE II to join our Mobile Growth engineering team. The role centers on designing, building, and operating the core attribution, data-passing, and optimization infrastructure that powers Amazon's worldwide PAM program. Ownership spans critical systems across the closed-loop attribution pipeline - from install and sign-in event tracking, to real-time data passing to third-party platforms, to fraud detection and prevention engines - all built as highly scalable, low-latency distributed services on AWS, processing billions of events across worldwide locales.
Beyond hands - on engineering, this role demands active involvement in shaping product and technical direction, defining key features that impact business metrics, and working with Senior Engineers to evolve the team's architecture and design. Collaboration is central - partnering with Product Managers, Data Scientists, third-party platform partners, country-level PAM program managers, and WW engineering teams to align technical solutions with business goals. Equally important is the responsibility of holding a high software quality bar, providing technical direction, mentoring fellow engineers, and fostering a culture of operational excellence.

This is a high-impact role where you'll shape mobile growth technology for some of the world's fastest-growing marketplaces. Come join a fast-paced, exploratory team that obsesses about customer experience, enjoys flexibility to pursue what makes sense, and is always eager to take on big challenges. It's still Day 1.

Key job responsibilities
> 2+ years of non-internship professional software development experience.
> 1+ years of non-internship design or architecture experience (design patterns, reliability and scaling).
> Programming experience with at least one modern language such as Java, Kotlin, C++, or Python including object-oriented design.
> Bachelor's degree in Computer Science or equivalent.
> Experience contributing to the architecture and design of new and current systems.

About the team
1. Experience building attribution systems, event tracking pipelines, or ad-tech/marketing-tech platforms.
2. Experience integrating with third-party advertising platforms (Appsflyer, Facebook Ads, Google Ads, MMPs).
3. Experience building fraud detection/prevention systems.
4. Experience with AWS services and operating large-scale production distributed systems.
5. Experience with real-time data processing, stream processing, and event-driven architectures.
Familiarity with mobile marketing metrics (ROAS, CPI, LTV, attribution models).
6. Experience mentoring junior engineers and raising the engineering bar.