Kotlin Multiplatform Engineer

Company Description

Kobopay is reimagining global banking for migrants and businesses, making it simple to earn, spend, and build credit globally through a single platform.

We are a fintech startup bridging the gap between traditional banking and borderless finance by combining everyday banking with a stablecoin-powered backend infrastructure. As we prepare to scale, we are assembling a founding engineering team made up of builders who want to shape the future of global finance and grow with us from the ground up.

Role Description
This is a founding equity-based role (paid when we raise funding) for experienced engineers.

You will work directly with the founding team to design, build, and scale Kobopay’s global banking infrastructure, ensuring our mobile application is secure, seamless, and performant. Expect to collaborate across product, design, and operations as we roll out new features, optimize APIs, and expand to new markets.As a Kotlin Multiplatform Engineer at Kobopay, you’ll be the architect of our shared-code strategy — building the foundation that powers our experiences across Android and iOS from a single Kotlin codebase. You’ll work at the cutting edge of the KMP ecosystem, shipping production code to real users on multiple platforms, while keeping platform-specific layers feeling truly native.

We’re looking for a Kotlin expert who has been in the trenches with KMP — someone who has wrestled with interop edge cases, navigated the wasm target, and shipped Compose Multiplatform UI that feels polished everywhere.

What You'll Do

• • Design, develop, and maintain a scalable mobile application
• • Troubleshoot, debug, and optimize performance across platforms
• • Contribute to architectural decisions and product direction
• • Collaborate in an agile, remote-first environment

What You'll Bring

• Real-world, production KMP experience: you’ve shipped KMP code that real users ran on Android and iOS
• Hands-on Compose Multiplatform experience: building shared UI across multiple targets with platform-specific adaptations.
• Experience with Kotlin Multiplatform for dependency injection across KMP targets in production codebases.
• Solid understanding of Kotlin/Native memory model, freezing, and interop with Obj-C/Swift APIs.
• Experience targeting Kotlin/Wasm and/or Kotlin/JS, including the Compose for Web stack.
• Fluency with multiplatform build tooling: Gradle multiplatform plugin, source sets, target configuration, and CI pipelines.
• Ability to write readable, maintainable, thoroughly documented, and well-tested shared code.
• Bonus: experience with KMP libraries (Ktor, SQLDelight) in production environments.
• Bonus experience in fintech payments or digital banking products