Salvo Software

• Train and fine-tune LLMs using supervised fine-tuning (SFT). • Work with open-source models such as LLaMA, Mistral, Qwen, and similar architectures. • Build LoRA / Q-LoRA pipelines for efficient fine-tuning. • Implement and optimize data preprocessing workflows, including tokenization and long-context handling. • Use and extend Hugging Face Transformers & Datasets for training and inference. • Parse and process structured and semi-structured data, including XML/XSD files. • Implement document parsing solutions for Office formats (python-docx, OpenXML). • Deploy, run, and maintain models fully offline and in air-gapped environments. • Perform model optimization and quantization (GGUF, GPTQ, AWQ, bitsandbytes). • Build and maintain inference systems using frameworks like vLLM, TGI, and Ollama. • Optimize GPU usage (CUDA, cuDNN, VRAM-aware batching). • Maintain local CI/CD pipelines for ML models without cloud dependencies. • Manage local model registries, versioning, and artifacts. • Build backend services in Python for ML training and inference workflows. • Work with relational databases (Postgres/MySQL). • Use Docker and Git for reliable development and deployment pipelines. • Use Azure DevOps for CI/CD (including local runners when applicable).

• Design and implement an ISO 13209-compliant OTX runtime, covering the full object model, deserializer, and type system. • Build a tree-walking interpreter for the OTX XML-based DSL, including AST design using sealed/algebraic data types. • Implement a variable scoping and parameter binding engine faithful to the OTX specification. • Develop the evaluator and executor pipeline, ensuring correct handling of procedural flows, conditions, loops, and exception handling as defined in ISO 13209-1/2. • Design and implement the OTX extension framework to support runtime-loadable extensions. • Handle streaming XML parsing with namespace resolution and xsi:type polymorphic deserialization. • Integrate the runtime with a D-Server layer: implement ODX parsing, service catalog management, and UDS request/response encoding and decoding. • Implement built-in OTX extensions including DiagCom adapter, PDU-to-J2534 adapter, and log:/file:/str:/ext:/flash:/even: extensions. • Develop diagnostic application logic targeting J2534 and D-PDU API (ISO 22900-2) diagnostic interfaces. • Support flash programming workflows across multiple OEM configurations. • Ship the runtime as a Kotlin Multiplatform (KMP) library targeting JVM and native platforms. • Write robust concurrent code using Kotlin Coroutines and Mutex primitives; debug and resolve production deadlocks. • Define and maintain a comprehensive test suite covering OTX conformance, edge cases in diagnostic protocol encoding, and runtime stability. • Participate in design reviews, contribute to internal documentation, and mentor team members on OTX and diagnostic protocol topics.

Role Description We are looking for a Senior OTX Runtime Engineer to design and ship a production-grade runtime for the ISO 13209 Open Test sequence eXchange (OTX) standard. This is a deeply technical, high-ownership role at the core of Salvo's diagnostic toolchain. You will own the full runtime stack — from XML deserialization and the object model through the type system, evaluator, executor, and extension framework — and integrate it with a D-Server layer that speaks ODX, UDS, and the D-PDU API. The work demands equal fluency in language-implementation concepts, Kotlin Multiplatform engineering, and automotive diagnostic protocols. Key Responsibilities - OTX Runtime Core - Design and implement an ISO 13209-compliant OTX runtime, covering the full object model, deserializer, and type system. - Build a tree-walking interpreter for the OTX XML-based DSL, including AST design using sealed/algebraic data types. - Implement a variable scoping and parameter binding engine faithful to the OTX specification. - Develop the evaluator and executor pipeline, ensuring correct handling of procedural flows, conditions, loops, and exception handling as defined in ISO 13209-1/2. - Design and implement the OTX extension framework to support runtime-loadable extensions. - Handle streaming XML parsing with namespace resolution and xsi:type polymorphic deserialization. - D-Server & Diagnostic Integration - Integrate the runtime with a D-Server layer: implement ODX parsing, service catalog management, and UDS request/response encoding and decoding. - Implement built-in OTX extensions including DiagCom adapter, PDU-to-J2534 adapter, and log:/file:/str:/ext:/flash:/even: extensions. - Develop diagnostic application logic targeting J2534 and D-PDU API (ISO 22900-2) diagnostic interfaces. - Support flash programming workflows across multiple OEM configurations. - Kotlin Multiplatform & Quality - Ship the runtime as a Kotlin Multiplatform (KMP) library targeting JVM and native platforms. - Write robust concurrent code using Kotlin Coroutines and Mutex primitives; debug and resolve production deadlocks. - Define and maintain a comprehensive test suite covering OTX conformance, edge cases in diagnostic protocol encoding, and runtime stability. - Participate in design reviews, contribute to internal documentation, and mentor team members on OTX and diagnostic protocol topics. Qualifications - Shipped an OTX-compliant runtime to production in any language. - Participated in development of a D-Server diagnostic interface, including ODX parsing and executing UDS services across multiple OEMs. - Deep, subject-matter-expert knowledge of ISO 13209-1/2 (OTX) and ISO 22901-1 (ODX). - Shipped at least one Kotlin Multiplatform (KMP) library to production. - Production experience debugging concurrency issues using Kotlin Coroutines and Mutex. - Implemented a tree-walking interpreter for an XML-based DSL. - Designed ASTs using sealed or algebraic data types. - Handled streaming XML parsing with namespace resolution and xsi:type polymorphism. - Strong command of Kotlin; candidates with equivalent depth in Java, Scala, or C# will also be considered. Diagnostic Protocol Knowledge - Subject-matter expert in UDS (ISO 14229), ISO-TP (ISO 15765), and CAN/CAN-FD (ISO 11898). - Experience developing diagnostic applications targeting J2534 and/or D-PDU API (ISO 22900-2). - Working knowledge of KW2000 and OBD-II (SAE J1979). - Experience with flash programming is a strong plus. Nice to Have - Hands-on experience with commercial OTX authoring tools (e.g., ETAS EDIABAS OTX Studio, SOFTING). - Familiarity with commercial ODX authoring tools (e.g., Mazel & Quack OTX/ODX Editor). - Experience with heavy-duty vehicle diagnostics (SAE J1939). - Background in automotive OEM or Tier-1 supplier environments.