To design and ship a production-grade runtime for the ISO 13209 Open Test sequence eXchange (OTX) standard, the full-time remote OTX Runtime Engineer will manage the full runtime stack, including XML deserialization, type system, and integration with diagnostic protocols. Key Responsibilities Design and implement an ISO 13209-compliant OTX runtime, including the object model and deserializer Integrate the runtime with a D-Server layer, handling ODX parsing and UDS request/response Ship the runtime as a Kotlin Multiplatform library and maintain a comprehensive test suite for stability and conformance Required Qualifications Experience shipping an OTX-compliant runtime in any language Deep knowledge of ISO 13209-1/2 (OTX) and ISO 22901-1 (ODX) Proven experience with Kotlin Multiplatform (KMP) libraries in production Expertise in debugging concurrency issues using Kotlin Coroutines and Mutex Experience developing diagnostic applications targeting J2534 and/or D-PDU API (ISO 22900-2)