Senior Mobile SDK Engineer

We’re looking for a Senior Mobile SDK Engineer to help design, build, and maintain production SDKs used inside customer mobile applications.

This role focuses on SDK development across:

- Android / Kotlin

- iOS / Swift

- React Native

You’ll work on features related to event tracking, consent handling, identity propagation, session lifecycle, payload delivery, and customer integrations.

This is not a traditional mobile app role. We’re looking for someone who understands how to build stable, scalable SDKs that external engineering teams depend on — including clean APIs, versioning, testing, documentation, and long-term maintainability.

Our environment is senior, product-focused, pragmatic, and collaborative. We value ownership, strong technical judgment, and engineers who can turn ambiguous requirements into production-ready solutions.

Responsibilities

- Build and maintain mobile SDK functionality across Android, iOS, and React Native

- Design reliable SDK APIs and integration workflows

- Implement features related to analytics, consent, session lifecycle, identity, and delivery behavior

- Handle edge cases such as offline mode, retries, batching, backgrounding, and app lifecycle events

- Collaborate with product and engineering teams to define and deliver scalable solutions

- Improve SDK quality through testing, demo apps, CI/CD, and documentation

- Participate actively in code reviews and technical discussions

Requirements

- 5+ years of software engineering experience

- Strong experience with Android (Kotlin/Java), iOS (Swift/Objective-C), and/or React Native

- Experience building SDKs, reusable libraries, or developer tooling

- Experience with analytics/event tracking SDKs or customer integrations

- Strong understanding of mobile lifecycle behavior and SDK architecture

- Comfortable working in startup environments with evolving priorities

- Strong communication and collaboration skills

Nice to Have

- Kotlin Multiplatform experience

- Experience with Segment, RudderStack, Snowplow, Tealium, or similar tools

- Experience with consent/privacy tooling (GDPR, CMP, etc.)

- CI/CD for mobile SDKs

- Experience in compliance-sensitive environments (SOC2, HIPAA, fintech, healthcare, etc.)

Ideal Background

- Mobile SDKs used by external customers

- Analytics, instrumentation, or customer data platforms

- Developer tooling and integration libraries

- Enterprise SaaS products with mobile integrations