Senior Kotlin Multiplatform Engineer - YOnC SDK
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 11h ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 76d ago
The date the source published, not the day we noticed it (2026-07-20). Last seen at its source 3h ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Poland
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay PLN 314.7k–399.8k/yr
Middle 50% of 32 listings that do state pay — Engineering · Senior · Poland · PLN/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
bamboohr employer's own board first seen 11h ago · last seen 3h ago
The listing
Yo is building an AI inference platform that runs directly on smartphones - turning the phone in your pocket into part of a global AI network. The mobile SDK that ships this to Android and iOS devices is moving to a shared core built in Kotlin Multiplatform, replacing what was previously two separate native codebases.
This is a foundational hire on a KMP effort that is just getting started. You will help build the shared core from the ground up and shape its public API alongside the existing Android and iOS engineers.
What you'll do:
- Design and build the shared Kotlin Multiplatform core of the SDK
- Own the SDK's public API and how it evolves
- Set the technical direction for the shared core and how it's adopted by the Android and iOS clients
- Ship the SDK to production on both platforms and keep it healthy as it grows
What we're looking for:
- Strong Kotlin fundamentals, including coroutines and structured concurrency
- Production experience with Kotlin Multiplatform
- Experience building and shipping an SDK or library consumed by other developers
- Deep understanding of the Android platform
- Working knowledge of iOS and Swift
Nice to have:
- Compose Multiplatform
- Deeper Kotlin/Native experience
- On-device AI / ML experience
- CI/CD for mobile platforms
- Performance profiling
Location & Logistics
- Remote / flexible
- Reports to the CTO