Software Engineer II (Mobile Developer - Android/Kotlin) - Mobile App Growth

Klaviyo · Remote, United States

Why you should join the Mobile App Growth team
The Mobile App Growth teams mission is to enable Klaviyo customers to develop and maintain personalized relationships with their mobile app users through rich mobile app experiences. The team is part of the Mobile App Marketing org and owns Klaviyos mobile SDKs — the foundational layer that enables customers to integrate Klaviyo into their mobile apps. We maintain native and wrapper SDKs across iOS, Android, React Native, Expo, and Flutter.
This role is open to fully remote work from within The United States
In-app messaging — including the in-app messaging publishing and scheduling pipeline
Universal linking — universal links settings pages and web tier
That product list keeps expanding — this year alone the team is greenfielding several new features, including mobile inbox. Were looking for passionate engineers who want to roll up their sleeves and grow beyond just Android into the other areas the team owns.
Design, build, and ship features and fixes to the Android SDK — your primary area of ownership — used across a huge range of third-party apps and OS versions/devices.
Pitch in on our other mobile SDKs (iOS, React Native, Expo, and Flutter) when priorities call for it; Contribute to the backend services, infrastructure, and embedded web UI that power products like in-app messaging, universal linking, and geofencing — including newer greenfield work like mobile inbox.
Diagnose and resolve SDK issues reported by customers.
Collaborate with product and other engineering teams to keep tracking and messaging behavior consistent across platforms.
Contribute to documentation, sample apps, and integration guides that customers use to adopt the SDKs.
Android-first

— 1-3 years of professional Android development experience, ideally including Kotlin; As AI tooling raises how much one engineer can credibly own, this matters more than it used to.
Adaptable

— willing to pick up iOS, backend, or frontend work when it falls under the teams ownership; Production-tested

— experience shipping and maintaining production Android code, with a solid grasp of the Android lifecycle, threading, and Gradle.
Comfortable in the weeds

— used to debugging across a wide matrix of devices, OS versions, and third-party app environments, since SDK work means you dont control the host app.
Quality-minded — familiar with testing practices (unit, integration, instrumentation) and CI/CD for mobile.
Clear communicator

— youll work with customers engineering teams as well as your own.
Curious

— comfortable with webviews and location services, and open to picking up new technologies (Python, React, AWS) as the teams surface area grows.
Bonus

: experience building or maintaining an SDK/library (versus an app), exposure to iOS/Swift or backend services, familiarity with push notification/messaging systems, or contributions to open source.

iOS (Swift)
Android (Kotlin)
React Native
Flutter
React, TypeScript, Redux
Python, Django
MySQL, Redis, DynamoDB
AWS (EC2, RDS, Aurora), Terraform
The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.
In addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility.
This role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.
We empower creators to own their destiny by making first-party data accessible and actionable like never before. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). By participating in Klaviyo’s interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.

Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.
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