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# Cross-Platform SDK Engineer [Rust]

- **Company:** TECHNOVE LLC
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), C Sharp (Programming Language), C++ (Programming Language), Databases, Continuous Integration, Data Security, Software Debugging, Memory Management, Video Game Development, Java Native Interface, Apache Maven, Microsoft Windows SDK, Network Protocols, Kotlin
- **Published:** September 23, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pm0mhag3bu

## About the Role

We are seeking an experienced Senior Mobile SDK Developer to create and maintain our cross-platform solution. The ideal candidate should have a deep understanding of mobile technologies, network protocols, and data security, as well as significant experience in developing SDKs for critical systems., * 5+ years of overall engineering experience; 1+ year of Rust in production (yes, one year - we care about engineering maturity, not just Rust tenure).

 * Confident with async, threads, synchronization, queues, and deadlock debugging.
 * Practical FFI experience: extern "C", JNI, memory management across the language boundary.
 * Experience with local databases, including version-to-version migration and resilient-first / data-preservation-first design.
 * Comfortable building under real constraints: limited RAM, disk, and battery.
 * At least one or two platform stacks - Android, Apple, Unity, or Windows (not all four; the architecture is documented and patterns are consistent, so you'll pick up the rest on the job).
 * Experience shipping and maintaining an SDK or library used by other teams.
 * English at a level comfortable reading/writing technical documentation.
 * A macOS machine to work from (required for building the Apple targets - no way around this one).

If your Rust is under a year but you've got real C++, C, or Zig experience - reach out, let's talk.

Nice To Have

 * uniffi or similar binding generators.
 * CI/CD and package publishing experience (SwiftPM, Maven, UPM).
 * In-app purchases (Play Billing, StoreKit).
 * Game development experience.
 * Mobile binary size optimization.

## Description

* Build and maintain native layers: Kotlin with JNI, Swift with C interop, C# with P/Invoke for Unity.
 * Design and maintain the API our internal product teams build on, including backward compatibility.
 * Handle builds, packaging, and releases across all supported platforms.


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