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Junior Kotlin Multiplatform Developer Jobs (NOW HIRING)

Salvo Software

OTX Runtime Engineer

$125.40K - $165.30K/yr

The work demands equal fluency in language-implementation concepts, Kotlin Multiplatform engineering, and automotive diagnostic protocols. Key Responsibilities OTX Runtime Core * Design and implement ...

MM International

Lead Android Developer

Rocklin, CA · On-site

Lead Android Developer Rocklin, CA Technical Expertise 12+ years of total experience in mobile app ... Familiarity with Kotlin Multiplatform (KMP) or Compose Multiplatform. Exposure to App Store/Play ...

Rapsodo

Senior Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

... Kotlin Multiplatform codebase. * Own architectural scoping-articulating trade-offs and risks ... Continuously improve developer experience through smarter tooling, build optimization, CI/CD, and ...

Rapsodo

Senior Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

... Kotlin Multiplatform codebase. * Own architectural scoping--articulating trade-offs and risks ... Continuously improve developer experience through smarter tooling, build optimization, CI/CD, and ...

Rapsodo

Senior Software Developer

Saint Louis, MO

$53 - $70/hr

... Kotlin Multiplatform codebase. * Own architectural scoping-articulating trade-offs and risks ... Continuously improve developer experience through smarter tooling, build optimization, CI/CD, and ...

Qentelli

Senior Android Developer

Morrisville, NC

$54.25 - $68.75/hr

... junior engineers through technical discussions, code reviews, pair programming, and design guidance ... Kotlin Multiplatform (KMP) or Compose Multiplatform exposure * p]:inline">Proficiency with ...

Zwift

Senior Software Engineer 2, Mobile

$136.60K - $170.90K/yr

Zwift is looking for a Senior Software Development Engineer to join their Zwift Companion team ... Preferred : • Proficiency in Kotlin Multiplatform, Compose Multiplatform & React Native • ...

Walter

Android Developer

$57 - $75/hr

We are looking for skilled Android developers to join our team and work on cutting-edge features to ... Experience with Kotlin Multiplatform is a plus. Highlights - Long term (12+ months ) and full-time ...

Zwift

Senior Software Engineer 2, Mobile

Long Beach, CA · On-site +1

$128K - $204K/yr

Zwift is looking for a Senior Software Development Engineer to join our Zwift Companion team. In ... Bonus points: * Proficiency in Kotlin Multiplatform, Compose Multiplatform & React Native

Globusmedical

Senior Software Engineer

Audubon, PA

$123.60K - $162.90K/yr

Nevro, a Globus Medical subsidiary, is hiring a Senior Software Engineer where you will work on our ... Strong proficiency in Kotlin, Compose Multiplatform, and mobile architecture patterns (MVVM ...

Bayer

Staff Engineer, Mobile Cross-platform

Seattle, WA · On-site

... mentor junior developers. On our team we share knowledge, help each other learn new things, and ... tool (Kotlin Multiplatform or React Native) • Experience developing apps for iOS and Android ...

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How much do junior kotlin multiplatform developer jobs pay per year?

As of May 31, 2026, the average yearly pay for junior kotlin multiplatform developer in the United States is $88,976.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,000.00 and $87,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Junior Kotlin Multiplatform Developer, and why are they important?

To thrive as a Junior Kotlin Multiplatform Developer, you need a solid understanding of Kotlin programming, basic software engineering principles, and familiarity with cross-platform mobile and desktop development. Experience with IDEs like IntelliJ IDEA, knowledge of version control systems such as Git, and exposure to Kotlin Multiplatform libraries are commonly required, while certifications in Android development or related fields can be beneficial. Strong problem-solving, teamwork, and communication skills help you collaborate effectively and learn from more experienced developers. These skills are crucial for delivering maintainable, scalable code and efficiently contributing to cross-functional teams in rapidly evolving technical environments.

What are some common challenges faced by Junior Kotlin Multiplatform Developers when working on cross-platform projects?

Junior Kotlin Multiplatform Developers often encounter challenges related to managing platform-specific code and ensuring consistent behavior across Android, iOS, and other supported platforms. Understanding platform APIs and properly structuring shared and expect/actual code can take time to master. Collaboration with mobile and backend teams is frequent, so clear communication and version control skills are essential. Over time, developers gain experience in debugging cross-platform issues and optimizing code reuse, which are valuable for career growth.

What are Junior Kotlin Multiplatform Developers?

Junior Kotlin Multiplatform Developers are entry-level software engineers who specialize in building applications using Kotlin Multiplatform technology. They help create apps that share code across multiple platforms, such as Android, iOS, desktop, and web, using the Kotlin programming language. Their responsibilities typically include writing and maintaining code, debugging, collaborating with senior developers, and learning best practices in multiplatform development. This role is ideal for those with basic programming knowledge who want to focus on cross-platform mobile and backend solutions using Kotlin.
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Junior Kotlin Multiplatform Developer jobs near you
Infographic showing various Junior Kotlin Multiplatform Developer job openings in the United States as of May 2026, with employment types broken down into 98% Full Time, and 2% Contract. Highlights an 33% Physical, 11% Hybrid, and 56% Remote job distribution, with an average salary of $88,976 per year, or $42.8 per hour.
Kotlin Multiplatform Engineer (Senior-Staff Levels)

Kotlin Multiplatform Engineer (Senior-Staff Levels)

Cantina

Los Angeles, CA • On-site, Remote

$180K - $230K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 11 days ago

Job description

About Cantina:
Cantina Labs is a social AI company, developing a suite of advanced real-time models that push the boundaries of expression, personality, and realism. We bring characters to life, transforming how people tell stories, connect, and create. We build and power ecosystems. Cantina, our flagship social AI platform, is just the beginning.
If you're excited about the potential AI has to shape human creativity and social interactions, join us in building the future!
About the Role:
As a Kotlin Multiplatform Engineer at Cantina, you'll be the architect of our shared-code strategy - building the foundation that powers our experiences across Android, iOS, and web 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 and build shared KMP modules covering networking, data persistence, business logic, and domain models used across Android, iOS, and wasm targets.
  • Ship production-grade Compose Multiplatform UIs that feel native and performant on Android, iOS, and web.
  • Build optimized platform-specific targets - leveraging Swift/Obj-C interop for iOS and Kotlin/Wasm for web - to meet the performance and UX bar of each platform.
  • Architect clean platform-expect/actual boundaries and maintain Kotlin/Native and Kotlin/JS interop layers.
  • Set up and manage Koin Multiplatform for dependency injection across all targets, ensuring clean and testable module graphs.
  • Collaborate with platform teams (iOS, Android, web) to align on shared APIs, versioning, and release cadences.
  • Drive KMP best practices across the organization - tooling, testing strategies, CI/CD for multiplatform builds.
  • Lead development of new AI and media-driven features within the shared codebase.
  • Participate in architecture reviews and uphold high standards for shared module design and testability.

What You'll Bring:
  • 8+ years of software engineering experience with deep, expert-level Kotlin - you know the language spec, not just the idioms.
  • Real-world, production KMP experience: you've shipped KMP code that real users ran on Android, iOS, and/or wasm - not just toy projects or internal tools.
  • Hands-on Compose Multiplatform experience: building shared UI across multiple targets with platform-specific adaptations.
  • Experience with Koin 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.
  • Strong grasp of coroutines, Flow, and structured concurrency - understanding how they behave across targets.
  • Ability to write readable, maintainable, thoroughly documented, and well-tested shared code.
  • Bonus: experience with KMP libraries (Ktor, SQLDelight) in production environments.
  • Bonus: contributions to the KMP/CMP open-source ecosystem or close familiarity with JetBrains' roadmap.

Compensation:
The anticipated annual base salary range for this role is between $180,000-$230,000. When determining compensation, a number of factors will be considered, including skills, experience, job scope, location, and competitive compensation market data.
Benefits:
  • Competitive salary and generous company equity
  • Medical, dental, and vision insurance - 99.99% of premiums covered by Cantina
  • 42 days of paid time off, including:
    • 15 PTO days
    • 10 sick days
    • 15 company holidays
    • 2 floating holidays
  • Generous parental leave & fertility support
  • 401(k) retirement savings plan
  • Lifestyle spending account - $500/month to use however you'd like
  • Complimentary lunch and snacks for in-office employees
  • One Medical membership, and more!

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