Software Development Engineer (SDE) – Mobile (iOS & Android) with Web

**On-Site, Hyderabad, India · Full-Time** > **Only apply if:** You have **≥ 1 year** of production-grade experience building and shipping **cross-platform mobile apps (iOS + Android)** using **Flutter or React Native** — **and** you can point us to **live apps on the App Store / Google Play** that you have built. Web development (React / Next.js) is a strong secondary skill. --- ## Who We Are We are a fast-growing product startup building intelligent, AI-powered software for modern businesses. Our focus is on crafting seamless, high-performance user experiences across mobile and web, powered by scalable backend systems and data-driven intelligence — and we ship to real customers every week. As we scale, we are looking for a **Mobile-first SDE** who can take end-to-end ownership of our iOS and Android apps from a **single cross-platform codebase**, and who can also contribute to our web products when needed. --- ## What You'll Do ### Core Mobile Development (Primary) - Build and ship production-grade **iOS and Android apps from one codebase** using **Flutter (Dart)** and/or **React Native (Expo, TypeScript)**. - Architect scalable, modular mobile apps with clean architecture and reusable component libraries / design systems. - Implement robust state management (**Riverpod / Bloc / Provider** for Flutter; **Zustand / Redux Toolkit / TanStack Query** for React Native). - Build smooth, responsive, accessible UIs that feel native on both platforms, with 60/120 fps animations and gestures. - Integrate native device capabilities: camera, location/maps, biometrics, push notifications, deep links, background tasks, in-app purchases, offline storage and sync. - Write platform-specific code (Swift / Kotlin, platform channels, native modules) when a feature needs it. - Own the release process: code signing, **TestFlight / Play Console**, staged rollouts, OTA updates, crash and performance monitoring (Firebase Crashlytics, Sentry). - Optimize app startup time, memory, battery usage, and bundle size through profiling. ### Meta Platform & AI-Driven Experiences - Build **Meta app development–related features**: integrations with Meta platforms (WhatsApp Business Platform, Messenger, Instagram, Meta Graph API, Facebook Login, Meta SDKs, app review and permissions flows). - Build **AI-driven, streaming mobile interfaces** — chat/agent UIs, token-by-token streaming, real-time updates, and rich message rendering (markdown, code). - Integrate real-time features using **WebSockets, SSE / streaming APIs, FCM/APNs push, or event-driven updates**. - Build complex multi-step workflows, dashboards, and data-heavy views (charts, lists, maps) optimized for mobile. ### Web Development (Secondary) - Build and maintain web apps using **Next.js (App Router), React, TypeScript, and Tailwind CSS**. - Share logic, design tokens, and API clients between mobile and web where possible (TypeScript monorepo, shared SDKs, or Flutter Web where appropriate). - Apply sound rendering strategies (**SSR / SSG / ISR / CSR**) and keep web performance and accessibility high. - Contribute to **embeddable / SDK-style web widgets** where relevant. ### Architecture & Backend Integration - Integrate with backend services (**TypeScript/Node and Python**) over **REST and/or GraphQL** APIs. - Implement secure authentication (**JWT, OAuth, social login, Sign in with Apple/Google, session-based auth**) and secure token storage. - Design offline-first data layers and caching strategies; handle large paginated and infinite lists efficiently. - Ensure robust error handling, observability, analytics, and performance monitoring. - Drive testing strategy: unit, widget/component, integration, and E2E tests (**flutter_test, Jest, React Native Testing Library, Detox, Maestro, Patrol**; **Cypress/Playwright** for web). ### Engineering & Collaboration - Translate product requirements and Figma designs into polished mobile and web implementations. - Conduct structured code reviews and enforce high-quality coding standards. - Collaborate closely with backend engineers, product managers, and designers. - Build and maintain CI/CD pipelines for mobile and web (**GitHub Actions, Fastlane, Codemagic, EAS**). - Take ownership of features from concept to production release; mentor junior engineers. --- ## Must-Have Qualifications ### Mobile Expertise (Primary) - **≥ 1 year** of production experience shipping cross-platform mobile apps to both the **App Store and Google Play**. - Strong command of **Flutter + Dart** and/or **React Native + TypeScript**; willingness to learn the other. - Solid understanding of iOS and Android platform conventions, app lifecycle, permissions, and Human Interface / Material Design guidelines. - Experience with state management, navigation, local storage (SQLite / Hive / Drift / MMKV / WatermelonDB), and offline sync. - Experience with push notifications, deep linking, and app store release and review processes. - Experience with mobile performance profiling and optimization. ### API & Integration - Experience integrating mobile and web clients with **Node.js and Python** backends. - Strong understanding of **REST APIs and/or GraphQL**. - Familiarity with authentication systems (**JWT, OAuth, session-based auth**) and secure data handling on devices. - Experience handling streaming responses, WebSockets, and large paginated datasets. ### Web Skills (Secondary) - Working knowledge of **React, Next.js, TypeScript, and Tailwind CSS**. - Understanding of rendering strategies (**SSR, SSG, ISR, CSR**) and responsive, accessible web design. - Familiarity with form handling and validation (**React Hook Form, Zod**) and data fetching (**TanStack Query**). ### DevOps & Quality - CI/CD familiarity for mobile (**Fastlane, GitHub Actions, Codemagic, EAS**) and web. - Strong Git workflows and collaborative branching strategies. - Testing mindset spanning unit, integration, and E2E coverage. - Comfort with Docker-based local development workflows. ### Engineering Mindset - Clean, maintainable code adhering to SOLID principles. - Strong debugging and performance-profiling skills. - Ownership-driven, product-first thinking. - Comfortable working independently in an **in-office startup environment**. --- ## Critical Requirements – High Weightage > **This is non-negotiable. Applications without these will not be prioritized.** ### Portfolio, Live Apps & Demos You must be able to **show, not just tell**. With your application, explicitly share: - **An active GitHub profile** showcasing real, production-grade mobile code (not just tutorials or forks). - **Live apps** — **App Store and/or Google Play links** (or TestFlight / internal-testing builds) that we can install and use right now. Flutter or React Native + TypeScript projects strongly preferred. - **A portfolio or demo reel** (site, video walkthrough, or screen recordings) highlighting your **UI/UX craftsmanship** — visual quality, animations, interaction design, and polish you are personally responsible for. - **At least one live web project** (URL) built with React / Next.js, as secondary proof of web skills. - Demonstrated ability to build **complex SaaS products, AI-integrated UIs, real-time apps, or data-heavy interfaces**. - Clean code structure, thoughtful architecture, and clear documentation. **In your application, please include direct links to:** https://forms.gle/FPUtQZ9ebgHPeAH59 1. Your GitHub profile (and 1–3 specific repos you're proud of). 2. At least one **live mobile app** (App Store / Google Play URL) you built or substantially contributed to. 3. A **portfolio / demo** that highlights your UI/UX craftsmanship. 4. A **live web project** URL (secondary). Tell us, for each link, exactly what you built and which parts are yours. ### Technical Assessment We will evaluate your: - Mobile architecture design and scalability decisions. - Code quality and maintainability. - Performance optimization strategy (startup time, rendering, memory). - Ability to convert product requirements and Figma designs into production-ready mobile UI. - End-to-end ownership during feature implementation, including release readiness. --- ## Nice-to-Have - Experience with **both Flutter and React Native**, or with native **Swift / SwiftUI** and **Kotlin / Jetpack Compose**. - Experience building **AI-powered, streaming, or real-time mobile interfaces** (on-device ML, voice, chat/agent UIs). - Experience with **Meta platform integrations** (WhatsApp Business API, Instagram/Facebook Graph API, Meta SDKs). - Experience with **Flutter Web, React Native Web, or monorepos** (Nx / Turborepo) sharing code across mobile and web. - Experience building **embeddable widgets / SDKs**. - Exposure to animation tooling (**Rive, Lottie, Reanimated, Framer Motion**). - Experience with Firebase / Supabase, analytics, A/B testing, and feature flags. - Contributions to open-source Flutter / React Native / React projects. - Experience working in early-stage startups. --- ## What We Offer - Competitive salary with a strong growth trajectory. - High-impact role with direct influence on product direction. - Opportunity to work on cutting-edge AI-driven products across mobile and web. - Fast execution cycles and a strong ownership culture. - Learning budget for courses and certifications. - Collaborative in-office engineering culture in **Hyderabad**. --- **https://forms.gle/FPUtQZ9ebgHPeAH59** If you are passionate about building beautiful, high-performance iOS and Android apps — and want to shape the product experience of a growing startup — **send us your GitHub, your live apps, and your portfolio.** We'd love to see what you've shipped.