Senior SDK Engineer

RevenueCat

. Design, build, ship, and support end-to-end features and products that help developers make more money .

Posted 9/29/2026full-timeRemoteSenior💰 $230,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in mobile SDK development for iOS and Android platforms, with a strong focus on Swift, SwiftUI, Java, and Kotlin. Proven ability to ship high-quality mobile applications and contribute to engineering culture through code reviews and mentorship.

Highest-signal resume keywords

Mobile SDK DevelopmentSwift and SwiftUIJava and KotlinCode Review and TestingMentorship and Onboarding

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mobile App DevelopmentIOS DevelopmentAndroid DevelopmentSDK ArchitectureTesting PracticesIterative DevelopmentServer-Driven User InterfacesPython

Soft Skills

Effective CommunicationProactive Problem SolvingCollaboration

Tools & Technologies

Apple App StoreGoogle Play Store

Industry Keywords

In-App Subscription EcosystemEngineering CultureDeveloper Experience

Tech Stack

Tools & technologies

AndroidiOSJavaKotlinPythonSwift

About the role

Key responsibilities & impact

Design, build, ship, and support end-to-end features and products that help developers make more money
Primarily focus on either the iOS or Android SDK, with occasional contributions to other platform and hybrid SDKs
Learn RevenueCat’s customers, SDK, in-app subscription ecosystem, and product solutions
Open pull requests and deploy changes used by 32,000+ apps
Work on projects and ship initial features during onboarding
Review code and contribute to engineering culture
Scope and work on projects self-sufficiently
Participate in code reviews, testing, and visibility efforts to improve codebase reliability and quality
Understand and improve the codebases used by the team
Become an expert in key features and lead initiatives to improve code and infrastructure
Contribute to the team roadmap and technical direction
Ship major products or features
Contribute ideas to RevenueCat’s solutions for mobile subscriptions
Specify, architect, and build new features
Become the primary expert or owner of at least one SDK technology area
Mentor and onboard new engineers
Help prioritize the roadmap to maximize value for developers and advance the team and technology

Requirements

What you’ll need

8+ years of experience in software
Have shipped mobile apps to Apple App Store or Google Play Store
Very experienced in Swift and SwiftUI (iOS) or Java/Kotlin and Compose UI (Android)
Willingness to work across iOS, Android, cross-platform, and hybrid platforms
Ability to build mobile SDKs with a strong developer experience
Ability to ship high-quality code using good testing practices in iterative cycles
Ability to collaborate and communicate effectively in a fully remote culture
Proactive approach to fixing issues and suggesting improvements
Bonus: experience building SDKs
Bonus: experience with server-driven user interfaces
Bonus: shipped an app to Google Play or the App Store
Bonus: experience in Python or other backend development

Benefits

Comp & perks

Competitive equity in a fast-growing, Series C startup backed by top-tier investors, including Y Combinator
10-year window to exercise vested equity options
A fully remote environment designed around autonomy and flexibility
4-5 weeks of flexible time off annually
Paid desk at a co-working space
Workspace budget and continuous learning stipend