Senior Software Engineer, Thrive Market

• 7+ years of hands-on mobile engineering experience (or equivalent scope at a hyperscaling company), with meaningful production time on both iOS and Android
• Strong proficiency in Swift and SwiftUI for iOS development; solid Kotlin experience for Android
• Experience building and consuming REST and RPC APIs from mobile clients at scale
• Working knowledge of mobile CI/CD pipelines, app distribution (TestFlight, Play Console), and release management
• Familiarity with relational and non-relational data persistence on mobile (Core Data, Room, Realm, SQLite) and when to use each
• Experience with mobile observability and monitoring tools (Firebase Crashlytics, Datadog, New Relic, or similar) to maintain crash-free rate and performance targets
• Comfort working in and modernizing legacy mobile codebases; Objective-C on iOS, Java on Android; you don’t need a greenfield project to do your best work
• Strong communication skills; can articulate tradeoffs clearly and influence architectural decisions across teams
• Experience with agile development and collaborative Git workflows

Desirable

• At Thrive Market, our ML team works closely with Product Managers and Feature teams to enable experiences that define how our members shop, save, and stay loyal
• This is a foundational hire within a net-new product engineering group focused on Personalization, AI, and ML Enablement; meaning you won’t just inherit a slice of the product as-is; you’ll be shaping how intelligent, personalized experiences reach members on their most personal devices
• As a Senior Software Engineer, Mobile, you’ll own the full mobile surface across iOS and Android; from building polished, performant native experiences in Swift/SwiftUI and Kotlin to integrating the backend services and APIs that power them
• You’ll also work within and modernize legacy Objective-C and Java codebases, evolving them toward modern architectures
• If you’re energized by ambiguity, care deeply about craft on mobile, and want your architectural decisions to directly impact how over 1.7 million members experience Thrive Market; this is the role
• Design and build native mobile features in Swift/SwiftUI (iOS) and Kotlin (Android) that are fast, accessible, and polished at every interaction
• Integrate with backend services and REST/RPC APIs to deliver personalized, data-driven product experiences on mobile
• Work within legacy Objective-C and Java mobile codebases while actively driving their modernization toward current frameworks and patterns
• Decompose tightly coupled mobile architectures into modular, testable, and maintainable components
• Apply strong software development principles and practice test-driven development from the start; unit tests, UI tests, and meaningful observability are table stakes
• Collaborate closely with Product, Design, and Data in the Product Triad model; translate business problems into technical specs and realistic sprint goals
• Instrument mobile experiences with meaningful metrics; own reliability and performance SLAs for what your pod ships
• Elevate the team through thoughtful code review, architectural discussions, and documentation of mobile best practices
• Work with cross-functional partners to diagnose and resolve production issues, including crash triage and release health monitoring