Sr. Software Engineer, Mobile App

Job DescriptionWe are Subway Headquarters! A dedicated team of professionals supporting thousands of franchisees around the globe.\nSr. Software Engineer - Mobile App Shelton, CT\nReady to build what’s next with one of the world’s most iconic brands?\nWhy Join Subway?At Subway, we are not standing still. We are building.\nThis is a business focused on what matters most: growing franchisee profitability, strengthening our brand and creating long-term value. The people who thrive here are the ones who want to make a real impact.\nYou will not just do the work. You will shape it.\nWe move fast. We think like owners. We make decisions that matter. We hold ourselves to a high standard because what we do directly impacts thousands of franchisees around the world.\nIf you bring energy, accountability and a bias for action, you will fit right in.We take the work seriously, but we also know the best results come from teams that support each other, celebrate wins and show up ready to build something better every day.This is your chance to be part of what’s next.\n\n\nABOUT THE ROLE\n\nWe're looking for an experienced mobile engineer to help build and improve the Subway app on iOS and Android — the app millions of guests use to order food, manage their loyalty rewards, find nearby restaurants, and check out with their preferred payment method.\nYou'll work in a collaborative product team alongside designers, product managers, and other engineers, shipping features that are fast, reliable, and polished. App performance is a core priority: every change is expected to maintain or improve speed metrics we track rigorously.\n\nTECH AT A GLANCE\n\nOur mobile stack in plain terms:\n\n\n\n\nFramework\n\n\nReact Native (cross-platform iOS & Android) + Expo\n\n\n\n\nLanguage\n\n\nTypeScript (strict mode) — strongly typed throughout\n\n\n\n\nState Management\n\n\nRedux Toolkit for app-wide state; MMKV for fast local storage\n\n\n\n\nNavigation\n\n\nReact Navigation\n\n\n\n\nPayments\n\n\nAdyen, Apple Pay, Google Pay\n\n\n\n\nAuth\n\n\nAWS Cognito (token-based login/session management)\n\n\n\n\nTesting\n\n\nJest, React Native Testing Library, Maestro (end-to-end)\n\n\n\n\nCI/CD\n\n\nGitHub Actions, Expo Application Services (EAS), Fastlane\n\n\n\n\nError Tracking\n\n\nSentry\n\n\n\n\nFeature Flags\n\n\nLaunchDarkly (controls which features are live for which users)\n\n\n\n\nAnalytics\n\n\nAdobe Experience Platform, Quantum Metric\n\n\n\n\n\nWHAT YOU’LL DO\n\n\nBuild and maintain app features across the full stack of the mobile experience — ordering, menu, cart, checkout, payments, loyalty, and store locator.\nWrite clean, well-tested TypeScript following our established coding standards, with automated checks (linting, formatting, architectural boundary rules) running on every commit.\nConnect the app to backend services and third-party tools: our ordering API, authentication, payment processors, fraud detection, feature flags, and analytics.\nWork with product managers, designers, and backend engineers to turn requirements into working software — joining sprint planning and reviews, implementing against Figma designs, aligning on API contracts.\nReview code from teammates and incorporate review feedback on your own pull requests; all PRs go through CI checks and peer review before merging (no direct pushes to main).\nDebug and fix issues on both iOS and Android using crash reporting tools, native logs, and device/simulator builds.\nWrite and maintain tests — unit, component, performance (we track render and time-to-interactive budgets), and end-to-end flows tested on real devices via BrowserStack.\nHelp keep our build and release pipelines healthy: automated builds, beta testing distributions, and production releases to the App Store and Google Play.\nDocument your work — code comments, architecture decision records, and notes in our project management system.\nParticipate in Agile ceremonies: standups, sprint planning, refinement, and retrospectives.\nStay current with the React Native ecosystem and contribute to team-wide improvements, including our ongoing migration to the React Native New Architecture (better performance and native integration).\n\nWHAT WE’RE LOOKING FOR\nRequired:\n\n6–9 years of professional software engineering experience.\nStrong commercial experience building cross-platform mobile apps with React Native and TypeScript.\nSolid understanding of React Native architecture: state management (Redux), navigation, performance optimization, and local storage.\nExperience calling REST APIs and working with token-based authentication flows.\nFamiliarity with the native side of React Native — iOS (Swift/Objective-C) and Android (Kotlin/Java) builds, native modules — or genuine enthusiasm to learn.\nPractical experience with mobile testing: unit tests, component tests, and end-to-end flows.\nExperience shipping apps to the App Store and/or Google Play.\nClear communicator who works well in a collaborative, cross-functional team.\nBachelor’s degree in Computer Science, Engineering, or a related field — or equivalent hands-on experience.\n\nNice to have:\n\nPayment integrations (Adyen, Apple Pay, Google Pay).\nFeature flag systems (e.g., LaunchDarkly).\nMobile analytics or error tracking (Sentry, Adobe Experience Platform, Quantum Metric).\nCI/CD for mobile: GitHub Actions, Expo EAS, Fastlane, BrowserStack.\nInternationalization (i18n) and multi-language app support.\nPrivacy and consent frameworks (e.g., OneTrust).\nSSL/certificate pinning for mobile API security.\n\nHOW WE WORK\nWe use Agile delivery in two-week sprints, tracked in Azure DevOps. Design specs come from Figma. Architecture decisions and technical docs live alongside the code in the repository. We value code quality, thoughtful review, and incremental improvement over big-bang rewrites.\nPull requests go through automated CI checks (tests, linting, build validation) and at least one peer review before merging. We treat the CI pipeline as a quality gate, not a formality.\n\nWhat do we offer?•    Insurance Plans (Medical, Life)•    Pension/401K/RSP (country specific)•    Competitive Bonus•    Mobility Allowance•    Tuition Reimbursement•    Company Holidays•    Volunteering time•    And More…..\n \nCompensation: The base pay range for this role is $119,200 - $149,000 annually\nPay within this range will be determined in good faith based on job-related factors, which may include skills, experience, education/training, location, and internal equity.\nThe Company is only considering applicants who are currently authorized to work in the country the position is based. AA/EOE/D/V