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PXT AI builds AI-powered products that serve Amazon's global workforce. Our flagship product is Aza (A to Z Assistant), an AI Assistant used daily by hundreds of thousands of Amazonians to find information, complete tasks, and improve productivity. Aza is built on AWS technologies—Bedrock for RAG responses and multi-agent orchestration, and Nova for Voice. It integrates content and business logic from domains across Amazon (PXT, IT, Sage, GREF, Approvals) and is accessible through A to Z on desktop, mobile, Slack, and as a Chrome extension. We're looking for a Senior Front-End Mobile Engineer to build the mobile experience for Aza on iOS and Android. This is a hands-on, craft-focused role where you'll own high-fidelity conversational and voice interfaces—the animation, the motion, the keyboard behavior, the theming—and work shoulder-to-shoulder with designers to turn intent into shipped product. If you care about the last 5% of polish that makes an app feel native, this is that job. The ideal candidate has deep React Native expertise, experience building conversational or voice-driven interfaces, and a track record of shipping high-quality mobile applications at scale. You'll work across the full mobile stack—from UI-thread animations to native modules to CI/CD pipelines—and raise the bar for mobile engineering across the team. Key job responsibilities - Build and own the mobile experience for Aza across iOS and Android using React Native - Implement complex UI animations and gestures using Reanimated (UI-thread animation), gesture handling, custom navigation transitions, and spring physics - Build conversational UI components: streaming/token-by-token rendering, markdown rendering, autoscroll, prompt suggestions, and nested prompt menus - Implement voice interaction features: live audio visualizers/waveforms, mic and session state management, wake-word handling behind feature flags, and text-to-speech playback using Amazon Nova and Polly - Integrate real-time client features—streaming responses from Bedrock, connection recovery, and long-lived session state - Build and extend the shared component library and design-token system (spacing, color, typography) used across PXT AI products - Implement multi-brand theming at scale—supporting light/dark modes and design variations across one codebase - Own keyboard, safe-area, and bottom-sheet interactions: composer-to-keyboard sync on the UI thread, detents, and edge-to-edge layouts - Drive React Native version upgrades and adopt the New Architecture (Fabric, TurboModules) to improve performance and maintainability - Ensure accessibility (WCAG) in mobile: screen-reader semantics and announcements, dynamic type and font-scale capping, focus order, and touch-target sizing - Implement internationalization and localization across 8+ languages, including RTL and text-expansion-safe layouts - Build feature-flagged, incremental rollout workflows—gating, staged launches, and clean revert/re-land patterns - Partner closely with product designers in Figma, providing implementation insight and pushing back constructively to improve designs - Write unit and component tests for UI code, and contribute to CI/CD infrastructure and release pipelines using AWS CDK or equivalent - Practice secure client engineering: no secrets in the client, backend-proxy patterns for credentialed calls, and supply-chain hygiene in package dependencies - Mentor other front-end engineers through code review and knowledge-sharing, raising the quality bar for the team
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.